Mercedes Benz Fault Code Manual

Fault Code Manualfor Mercedes-Benz Analog Systems Digital Systems 1988-1997 1993-2000 ©Baum Tools Unlimited Inc. February 1, 2001 Table of Contents The Diagnostic Process Information Gathering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Diagnostic Codes & Adaptation Diagnostic Code Readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . About Stored, Registered and Current Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault Code Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Check Engine Light (MIL) Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mixture Adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Resetting and Reactivating BOSCH Engine Control Module Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Data Stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 7 7 8 9 9 Equipment Connections Connection Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connector Layout of Vehicle Diagnostic Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-pole Diagnostic Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-pole Diagnostic Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-pin Diagnostic Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-pole Diagnostic Connector (1980-94) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 11 11 11 12 13 100 Mercedes Model Identifier ............................................................... Fault Codes Engine Control Electronic Diesel Idle Speed Control (ELR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Diesel System (EDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Fuel Injection System (CFI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Fuel Injection System (MAS Controller) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LH Sequential Multiport Fuel Injection System - Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LH Sequential Multiport Fuel Injection System - Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HFM Sequential Multiport Fuel Injection System - Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HFM Sequential Multiport Fuel Injection System - Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PMS (PEC) Fuel Injection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ME Sequential Multiport Fuel Injection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic Module (DM) - Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic Module (DM) - Digital LH (104, 119, 120) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic Module (DM) - Digital HFM (104, 111) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Base Module (BM) - LH-SFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distributor Ignition (DI) - LH-SFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cruise Control/idle Speed Control (CC/ISC) w/o ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Accelerator / Cruise Control / Idle Speed Control (EA/CC/ISC) w/ASR . . . . . . . . . . . . . . . . . . . . . . . 14 14 15 16 17 18 20 22 25 26 41 43 45 47 48 49 50 Chassis Control Electronic Automatic Transmission Control (ETC) CFI (722.5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Automatic Transmission Control (ETC) 1990-95 (722.5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic-engaged Four-wheel Drive (4MATIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Automatic Transmission Control (ETC) 1996-2000 (722.6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adaptive Damping System (ADS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic Locking Differential (ASD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti-lock Brake System (ABS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti-lock Brake system (ABS w/ASR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Traction Systems (ASR, ETS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Speed Sensitive Power Steering (SPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 51 52 53 54 55 55 56 57 58 2 Electronic Traction Systems (ABS, ASR, ETS, SPS) Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Body Control Cabriolet Soft Top (CST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Roll Bar (RB) for CST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Roadster Soft Top (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62, 63 Roll Bar (RB) for RST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Infrared Remote Control For Central Locking (IRCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64, 65 Pneumatic Systems Equipment (PSE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Anti-theft Alarm System( ATA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Cellular Telephone (CT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Convenience Features (CF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Supplemental Restraint System (SRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Supplemental Restraint System (SRS) BAE, ZAE System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Supplemental Restraint System (SRS) with Side Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Body Control Systems (SRS, IRCL, PSE, ATA. RST, MSC, CF) Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Climate Control Tempmatic A/C . . . . . . . . . . . . . . . . Automatic A/C . . . . . . . . . . . . . . . . . A/C SELF DIAGNOSTIC SYSTEMS TAU 2.1 . . . . . . . . . . . . . . . . . . 129 Chassis 1990-95 . . . . . . . . 129 Chassis 1996-99 . . . . . . . . 140 Chassis 1992-95 . . . . . . . . 140 Chassis 1996-99 . . . . . . . . 202 Chassis 1995 . . . . . . . . . . 202 Chassis 1996-99 . . . . . . . . 210 Chassis 1996-99 . . . . . . . . ......................................................... ......................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 74 75 77 79 81 86 89 93 94 Mercedes Technical Acronyms Mercedes Model Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 100 106 ............................................................... .......................................................... Mercedes Diagnostic Manuals Technical Support Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 DISCLAIMER: All information contained in this document is correct to the best of our knowledge. Errors may occur therefore Baum Tools Unlimited Inc. makes no warrantee, guarantee or assurance that damage may not occur from the use of this information. The user takes all responsibility for its use. Mercedes Benz is a registered trademark of Daimler Chrysler AG. Copyright © 1998-2001 BAUM TOOLS UNLIM ITED INC. All rights reserved. Any reproduction in w hole or in part w ithout perm ission is strictly prohibited. 3 Here are 1) 2) 3) 4) 5) 6) 7) some suggestions: W hat is the problem/symptom(s)? W hen did it start? Under what conditions did the problem/symptom occur (if intermittent)? W et. dry. as always. tires. Since many people are unaware of this characteristic of normal ABS operation. Information Gathering. hot. This ensures that the malfunction you try to diagnose and fix is the one with that the customer is concerned about and that it is a real malfunction and not just a lack of understanding of normal vehicle operation. the “MOST HELPFUL” source of information. Also it’s the most fun part of the diagnostic process. Few things are more frustrating for you and the customer than repairing a suspension noise in the front of the car (even if it did need new shocks. shocks. Testing and then Repair.. thrust bushings. Step 1 The Customer Interview This is truly an art. THE DIAGNOSTIC PROCESS The diagnostic process divides itself into several levels. The customer is more likely to be able to make the car “do it” then you will. W atching the customer use body gestures. Actually the process of getting the information out of the customer can be relatively painless if you ask the correct questions. It is also a good idea to let the customer drive on the outbound leg so you can watch the customers driving technique. The customer of course is. It consists of getting the Customer to tell you what the complaint is and under what conditions it occurs. Their concise insight into the problem is a valuable step in getting the problem solved and the car back on the road.etc. make funny faces and funny sounds in an attempt to imitate vehicle noises can really brighten your day. they mistake this for a malfunction.. Sometimes a customer can mistake normal vehicle operation for a problem. Has there been any work done on the car recently? New radio. cold or changing weather.This book is designed to help you in the basic diagnostic procedures for Mercedes Benz.. Also if you start diagnosing a vehicle for a problem when the vehicle is operating normally. Did you run out of gas recently? Are you sure this hasn’t happened before. you can be in for a long frustrating day. W e will cover Information Gathering and Analysis of codes in this book. 4 . Step 2 The Test Drive Go on a test drive with the Customer so you can/cannot experience the problem/symptom. An example of this is a customer whose vehicle has an Anti-Lock Brake System (ABS). It is intended to be a starting point in the diagnostic process and is not intended to be a complete resource.etc? Any jump starts or hard starts with long crank times. rough road... even for a short time? Next the exact nature of the complaint must be addressed. For those experienced in diagnostics jump to page INFORMATION GATHERING The information gathering stage always starts with the Customer. Analysis of Codes. brakes and a set of tires) when it was an engine noise that the customer wanted fixed. and is concerned because of a pulsating brake pedal when braking hard. Key Off Engine Off >11. or whatever volt meter you use) and .Step 3 Visually Inspect the Vehicle Don’t leave out this step. Technician: Tech Support: Technician: Tech Support: Technician: “I got this code. Vantage. been to the body shop (welded) or jump started.4Volts KOER >13. SRS/Airbag . pull the codes from all systems. KOEO and KOER. Raise the car and inspect the brakes/wheels for excess dust and corrosion.Has the car been in a collision. transmission and traction systems.’t ignore anything at this step. W hy’d the new plugs make it go away and not the new O2 sensor?” Test drive the car then pull the codes again. ABS/ASC/DSC/ASR . not just the suspect system. may register codes. mis-routed wiring and anything else that looks out of place. Step 4 Check the Battery Visually inspect the battery for corroded cables and terminals. but I don’t remember the code number. Transmission . W rite them down.2 but not higher than 14. These systems share data with the engine. nesting materials.” (Knocking back another bottle of Mallox) “Could it have been a Lambda Control code?” “Ya! I think that was it. You can save lots of time with this.2volts Step 5 Recall Fault Codes Even without a “Check this or that Light” illuminated. Check that all static charge grounding straps are in place. Check voltage Key Off Engine Off.Look under the hood. If you see any problem clean it up and grab your DMM (Fluke 88. Inspect the transmission housing and connection cables. Record and then Clear the codes. Engine . Simple things like and wrong size tire can turn on the Transmission Failure message..Look for beverage spillage on the center console area. W hy?” “W hat is the type and year of the car and what was the fault code number?” “It was a ‘94 C220. W rite them down. burn marks.4Volts KOEO >11. yet not turn on the ABS or ASR light. Look for problems in the operation of the instrument cluster and on-board computer. It came in last week. 5 . though.Lift hood and inspect the fluid level. W rite them down. Both systems. Any or all of these can be signs of something amiss. jumped a curb. Also old batteries are pure trouble in a late model car. For some codes you will need to perform 2 test drives to get a code. Check for missing covers. Remember you’re gathering information at this point so don. Late model cars have highly integrated controls and faults can cascade from one system to another.. oil and water splash. I replaced it but the code came back the next day. Something about the O2 sensor. There is nothing more fun then the call to tech support that starts. Engine temperature is greater than -7 degrees C. in the case of HFM and LH systems. Under HFM-SFI a TRIP has occurred if: u u u u Engine running more than 5 minutes Vehicle speed >4 km/h (2. 6 .Diagnostic Codes & Adaptation Diagnostic Trouble Code (DTC) Readout: The engine control module (N3/4) for the LH-SFI. Malfunctions which are no longer present. Current or Actual Faults . erase the Stored and Registered faults. Intermittent contact malfunctions which have occurred 5x during a trip. Malfunctions are recognized and stored as trouble codes and are distinguished as follows: u u u Malfunctions which are constantly present. Malfunctions which occur longer than a pre determined number of seconds. are automatically erased again after a maximum of 19 trips.5 mph). HFM-SFI and ME-SFI systems are equipped with diagnostic trouble code (DTC) memory.These faults are detected while the car is running at idle or speed. The stored diagnostic trouble codes (DTCs) can be read at the 16 (124 E-class) or 38 pin data link connector (X11/4) with the ignition switched "ON" or with the "engine running". Under ME-SFI a TRIP is u u u Engine running for more than 20 minutes. Engine speed is greater than 500 RPM. components not present. W hen a certain number of failures has occurred the fault is moved to permanent storage and the Check Engine Light (MIL) will be illuminated. and are only meaningful with the ignition on and the engine running. Registered and Current Faults Stored or Permanent Faults .These faults can keep the MIL on. Diagnosis via an on-off ratio readout has been eliminated in all models. Engine speed >700 rpm. These codes cannot be erased. About Stored. This is particularly true in C-Class (202) cars. This temporary memory records the number of times a component fails.These faults generally turn on the MIL (malfunction indicator lamp previously known as the Check Engine Light) and are recorded in the permanent memory of the cars system controller. Components not present on the vehicle may be flagged as failing by the cars internal diagnostics due to the generic nature of the cars software. Engine shut off for 30 seconds. To ensure the MIL is extinguished. The DTC memory remains active even if the vehicle's battery is disconnected. These faults are recorded in the temporary memory of the of the cars system controller. (See Registered Faults below. On cars equipped with Fault Registers the Check Engine Light may stay on after the Stored or Permanent Fault has been erased if another occurrence of the fault has happened since the original Permanent Fault was stored. Clearing these codes most often will extinguish the MIL. They represent components currently failing or. Codes found in this system with the KOEO have no meaning.) Registered or Pending Faults . Module. These types of codes are more difficult to diagnose. Module. Some of these components are: Oxygen Sensor MAP MAF TPS Vehicle Speed Sensor Coolant Temperature Sensor Intake Air Temperature Sensor Camshaft Position Sensor Crankshaft Position Sensor Exhaust Temperature Sensor Injectors Ignition (coils) Idle Air Valve Pressure Regulator (optional) EGR Valve EVAP Purge Valve Secondary Air Valve Secondary Air Pump.. Combustion disturbed by mechanical failure (Spark plugs... Range/Perf. intake/exhaust valves. nature of the complaint itself.etc. Module.) Ignition Feedback Fault Possible cause: Coils. . Possible cause: ABS/ASR Control Unit Fault.. Component Failure Codes are just that. Low or high battery voltage. Component failure codes and System Malfunction or Logic codes. Incorrect Fuel Pressure. System Failure or Logic Codes indicate that. EVAP control system defective. CAN Bus Communications Fault... Secondary air leak. Air Mass Meter defective. These codes make it easy to spot the problem. Engine Temperature Sensor defective. ASR CAN Signal to Another Controller Lost. Faulty EA Actuator. Low or high battery voltage ECU Faults Internal Internal Internal Internal Internal Control Control Control Control Control Module. when the “system” operated it did not produce the desire result. and information from the datastream can help refine your analysis. The ECU specifically targets a “component” as failing. Examples of these codes are. EGR valve leak. Sparkplug W ires. Electronic Accelerator Fuel Cutoff Signal to Engine Control Possible cause: Faulty EA Actuator System.etc.. Faulty EA Actuator. Module. ABS/ASR Component Fault.Fault Code Types There are basically 2 code types. but generally there will be other conditions that can give you a clue. ECU.etc. Fuel Trim. O2 sensor aging (slow response) or inactive. Other fault codes will be present. internal communication fault Keep Alive Memory (CMOS) Memory check sum (ROM/RAM) RAM EEPROM. compression. Low or high battery voltage. Injector valve defective or coked. Load Calculation Cross Check. Sparkplugs. Faulty Electronic Accelerator (EA) controller. O2 Control at Limit (Lambda control) Possible cause: Fuel tank ran empty. physical engine condition (wear and tear). 7 . DI (pin 17 & 18) and DM (pin 19 check stored and registered codes only) LH (pin 4). Should a malfunction occur in the form of: u u u u u u u u Intake air leaks Injector defects or carbon build-up. EA/CC/ISC (pin 14). Maximum correction towards rich or lean is 25%. such as a blown diaphragm. the self-adaptation feature must be reset to its mean value. After eliminating a malfunction or after trial installation of an engine control module from another vehicle. Mechanical engine wear.Check Engine Light (MIL) Diagnosis Mercedes S(140). 8 . EA/CC/ISC (pin 7) (except C220) and DM (pin 19 check stored and registered codes only) HFM (pin 4). and DM (pin 3 check stored and registered codes only) HFM (pin 4). 210) and C(202) class have multiple systems which can turn on an Check Engine Light. All related systems must be tested for codes and repaired before the light will extinguish. Mixture Adaptation: The Lambda control system precisely determines fuel injection duration so that the fuel/air ratio is consistently kept at Lambda equal 1 (Lambda=1 is 14. BM (pin 8). Fuel tank purge control valve defects or EVAP system leaks. EA/CC/ISC (pin 7). E(124. chipped valves or leaking rings. EA/CC/ISC (pin 7) and DM (pin 19 check stored and registered codes only) HFM (pin 4). DI (pin 17) and DM (pin 19 check stored and registered codes only) HFM (pin 8). After repair work is performed. The self-adaptation is performed at idle and under partial load. such as.] EGR defects Vacuum leaks of any kind. 10 trips. Air Flow Sensor defects Pressure regulator defects. Diagnostic Module and Base module into the ME controller module. The degree of correction is calculated constantly and stored in KAM (Keep Alive Memory) RAM. the engine control module will automatically adapt itself again after approx. EA/CC/ISC (pin 7) and DM (pin 19 check stored and registered codes only) Note: ME-SFI injected vehicles integrate Injection. EA/CC/ISC (pin 7). Electronic Accelerator. BM (pin 8). SL(129). Injection System Diagnostic Socket Pin and CS1000 System to Use 129 LH (1992-95) 140 LH (1992-95) 124 HFM (1993-95) 140 HFM (1993-96) 202 HFM (1995-96) 210 HFM (1996-97) LH (pin 4 & 5). Ignition. The engine control module automatically performs a mixture adjustment.7 kg air per 1 kg fuel) under all operating conditions. Multiple system and component faults can almost always be traced to faulty wiring harnesses or water damage. pin 4 for 38 pin diagnostic socket) to ground for 6 to 8 seconds 3. however the S-class has more features in the Airbag system such as side bags and baby seat detection. The coding of the controller for the C280 masks the features not present so the controller doesn’t register a code. To reset and reactivate the module : 1. AIRBAG and RESTRAINT SYSTEMS will turn on the light and record codes if incorrectly coded for the car. After repair work is performed the engine control will automatically adapt itself again (ME injection) over the course of 10 TRIPS. Please refer to the Diagnostic Manuals from Mercedes Benz for complete discussion of the topic. Always check the battery condition before starting analysis. By looking at the values of the suspect components in operation and the computed values of the ECU. TRANSMISSION systems will turn on the “Check Engine” light if any shared system is detected as failing test. A good example is the 1995 C280 and the 1995 S320. Also some mechanical problems in earlier cars (pre 1988-96) can cause poor drivability without ever tripping a code or turning on the light. After display of 1 (No faults present) short the diagnostic plug (pin 8 for 16 pin diagnostic socket. shelf coded for maximum features. On later models that is much less likely. but may not turn on the MIL unless the fault results in a change in the exhaust gases or can damage the engine in the short term. Switch ignition off and wait at least 5 seconds 4. The nominal values for all Mercedes vehicles 1990-2000 can be found in the Mercedes Engine Diagnostic Manual Volume 1 Section A. Short Term Adaptation (Multiplicative) . 9 . INJECTION/IGNITION system problems will trigger trouble codes. The same controller is used in both vehicles. Turn ignition on."Resetting and Reactivating for BOSCH Engine Control Module Memory" For LH & HFM systems only.1.Engine at partial load The correction towards rich or lean is + . wait minimum of 10 seconds then restart engine. Using the Data Stream to Diagnose/Confirm Faults The Serial Data Information Stream of the ECU is a “window” into the operation of the system under test. BRAKING/TRACTION systems will only turn on their check light when the system has become inactive. Long Term Adaptation (Additive) . The interpretation of the Data Stream is beyond the scope of this book. Read and clear all fault codes 2.Engine at idle.0 msec (Injection Duration) at idle and the factor of 0. In All Systems low or high battery voltages can trigger invalid or multiple codes without real failures of the indicated components. The controllers generally come off the parts dept.32 at partial load. A listing of these manuals can be found at the end of this document. Codes Present in the Absent of Trouble Light Not all control systems will trigger codes or turn on malfunction lights when codes are stored.68-1. we can build a picture of the operation of the system and what is causing the fault. It does not mean there isn’t a problem and codes haven’t been stored. To socket 1 To diagnostic test socket Power supply (B+) socket on the vehicle Diagnostic Connectors Use with the battery extension cable to the vehicle battery Socket 16 (circuit 15 .Connection Table Test Lead of Cable Red Black Yellow Connection source Power -To power supply socket or vehicle battery Ground . Use battery +.Battery+) *Must be performed with the ignition ON to power up the scanner 8-pole connector 16-pole connector Ground (-) socket on the vehicle Diagnostic Connectors 8-pole connector 16-pole connector 38-pole connector socket 1 socket 1 socket 1 10 . 38-pole connector Socket 3 (circuit 30 .ignition ON)* Not present in some models. Electronic idle speed control system Electronic diesel system Automatic locking differential Automatic-engaged four wheel drive (124 only) Supplemental Restraint System Air Conditioning Not used 16-pole Diagnostic Connector Models 124. 129 1 2 3 4 5 6 7 8 9 10 11 12 13 14 OBD CIS-E DM EDS ASD 4MATIC SRS / AB A/C RB DI HFM-SFI PEC ADS RB RST ATA IRCL ETC EA CC / ISC ESCM Ground Push-button for On Board Diagnostic (California only) Continuous Fuel injection system (CFI) Diagnostic Module .Connector Layout of Vehicle Diagnostic Connector 8-pole Diagnostic Connector Models 201. (Model 129) 11 .LED (California only) Electronic diesel system Automatic locking differential Automatic-engaged four wheel drive Supplemental Restraint System / Air Bag Air Conditioning (Model 124) Roll Bar (Model 129) Distributor ignition HFM Sequential multi-port Fuel Injection/Ignition system Pressurized engine control Adaptive Damping System Roll Bar (Model 124) Roadster Soft Top (Model 129) TN-signal (Gasoline) Anti Theft Alarm system Infrared Remote Central Locking Electronic automatic Transmission Control Electronic Accelerator (Model 124) Cruise Control / Idle Speed Control (Model 124) Engine System Control Module (MAS). 124. 126 1 2 3 4 5 6 7 8 CIS-E ELR EDS ASD 4MATIC SRS A/C Ground Not used Continuous fuel injection system (CFI) Diesel injection system . Call for more information. is recommended to allow easy access to the diagnostic connector.) 38-Pin Diagnostic Connector Models 124. 202.6) Adaptive Damping System Speed-sensitive Power Steering Speed Signal (Time Division) (Di) (Diesel) Models 202. 215. Models 124.034/036.15 16 Not used Voltage. 210 12 .6) Electronic Transmission Control (722. Right Bank LH Sequential Multiport Fuel Injection. terminal 30 EDS IFI DFI HFM-SFI LH-SFI ME-SFI 5 LH-SFI ME-SFI ABS ETS ASR ESP EA ISC CC BM BAS ASD EATC ETC ADS SPS TD 6 7 8 9 10 11 12 13 Description W 12 (Chassis Ground). 129. 170. 800-848-6657 or 941-927-1414 Pin 1 2 3 4 System Ground (Terminal 31) Voltage. 208. 119 Engine 120 Right Bank Motor Electronics with Sequential Multiport Fuel Injection/ignition System Engine 119 Engine 120. terminal 87 Voltage.058/063/067/076. 210. 220 The Mercedes Diagnostic “Mushroom” #140-1463 available from Baum Tools Unltd. 129. Engine 120 Left Bank Motor Electronics with Sequential Multiport Fuel Injection/ignition System Engine 120 Left Bank Anti-lock Brake System Electronic Traction System Acceleration Slip Regulation Electronic Stability Program Electronic Accelerator+ Idle Speed Control Cruise Control/idle Speed Control Base Module Brake Assist Automatic Locking Differential. W 15 (Electronics Ground) Ignition Switch 12volts + Battery 12volts + Electronic Diesel System In-line Fuel Injection Electronic Distributor-type Fuel Injection (Diesel) Hot-Film Engine Management Sequential Multiport Fuel Injection/ignition LH Sequential Multiport Fuel Injection System Engines 104. 140 Electronic Automatic Transmission Control (5-speed AT) (722. Ignition ON (Circuit 15) (Not equipped on all models. 140. ME-SFI LH-SFI Engine 119. Engines 104. LH-SFI Engine 120 LH-SFI. Right Speed Signal (Time Division) (Di) (Diesel) Model 140 Speed Signal (DI/KSS) (Gasoline) on LH-SFI / model 202 HFM-SFI Distributor Ignition. RPM and Lambda sensor values.14 15 16 TNA TN Lambda on/off ratio Lambda on/off ratio IC HEAT TA/C AA/C DI TD TN DI DM PSE MFCM CF RST RB ATA ASD PTS AB RCL CNS STH ZUH - 17 18 19 20 21 22 23 24-25 26 27 28 29 30 31 32-33 34 35 36 36 37-38 Signal (Gasoline) on LH-SFI Speed Signal (DI/KSS) (Gasoline) on HFM-SFI. Right Bank LH-SFI Engine 120 Left Bank Instrument Cluster Automatic Heater Air Conditioning (Tempmatic) Air Conditioning (Automatic) Distributor Ignition. Model 140 Roadster Soft Top. 13 . Model 210 Convenience Feature. Engine 120. Model 202 Parktronic System. 119. Model 129 Anti-theft Alarm Automatic Locking Differential. Engine 120. Model 140 Multi-function Control Module. It can display on-off ratio fault codes (1986-1992). Various on-off ratio Meters are available that provide access to this type of diagnostic connector. Call Baum Tools at 800-848-6657 or 941-927-1414 for more information on these meters. Model 129 Roll Bar. Left Diagnostic Module Pneumatic System Equipment. Model 140 Airbag/emergency Tensioning Retractor Remote Central Locking Communication and Navigation System Stationary Heater Heater Booster The following connector is not for use with the CS1000 or CS2000 scanners 9-Pole Diagnostic Connector (1980-94) The 9-pole Diagnostic Connector is used on earlier model vehicles. ELECTRONIC IDLE SPEED CONTROL (ELR) Model 201.135 140.134 Model Year 1990-93 1990-91 1992-93 FAULT CODE TABLE DTC Readout Possible Cause of Failure 1 No fault found 2 Fuel rack position sensor (L7) 3 Air flow sensor signal (B2/1) 4 Electronic diesel system (EDS) control unit (N39) or atmospheric pressure sensor 5 Exhaust gas recirculation (EGR) valve vacuum transducer (Y31/1) or fault in exhaust gas recirculation (EGR) control circuit 6 7 8 9 10 11 12 13 14 15 Electronic diesel system (EDS) control unit (N39). or defect in Boost pressure control circuit. or malfunction Intake manifold air pressure circuit 14 .134 126. wastage vacuum transducer (Y31/3).128 126. faulty (internal fault memory) Electronic diesel system pressure sensor (B5/1).126 Model Year 1989 FAULT CODE TABLE DTC Readout Possible Cause of Failure 1 No fault found 2 Speed sensor signal 3 Coolant temperature sensor signal 4 ELR control unit or Idle speed control (ISC) system ELECTRONIC DIESEL SYSTEM (EDS) Model 124. internal voltage supply Starter ring gear speed sensor (L3) Engine coolant temperature sensor (B11/4) Intake air temperature sensor (B2/1a) Voltage supply insufficient Electronic idle speed control actuator (Y22) or exhaust gas recirculation (EGR) valve vacuum transducer (Y31/1) or Boost pressure cut-out switchover valve Not used Electronic diesel system control unit (N39). defective Boost pressure control/ pressure control flap vacuum transducer (Y31/5) . Or Intake manifold air pressure control valve vacuum transducer (Y31/2). Faulty sensor or wires Not used Intermittent contact in engine coolant temperature sensor circuit Not used Not used Engine coolant temperature read from ignition control module illogical 15 .090 124.051 124.028 (1988-93) 201.061 129.wide open throttle (WOT).045 201.050 124. 10 Throttle position switch .026 124.230 124.030 124.290 126.025 126.039 126.024 126.CONTINUOUS FUEL INJECTION SYSTEM (CFI) Models 107. open or short circuit Oxygen sensor is shorted to positive or ground Current to idle control valve is illogical Not used Not used Not used Oxygen sensor heater voltage illogical Short circuit to positive in purge switchover valve circuit Not used Short circuit to positive in start valve circuit Short circuit to positive in upshift delay solenoid valve circuit Data exchange between CFI control module and ignition control module interrupted Intermittent contact in engine coolant temperature sensor circuit 29 30 31 32 33 34 CFI and ignition control module reading different engine coolant temperatures . open or short circuit 12 Absolute pressure values from EZL ignition control module are illogical or Exhaust gas recirculation temperature sensor 13 Intake air temperature reading is illogical 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Vehicle speed signal read by CFI control module is illogical Not used Exhaust gas recirculation switchover valve.030 124.025 129.024 126.090 126.026 124.048 124.066 201.029 124. signal faulty 3 Engine coolant temperature sensor faulty 4 Air flow sensor position potentiometer voltage illogical 5 Oxygen sensor signal illogical 6 Not used 7 TNA/TD signal (RPM) read by CFI control module 8 Altitude pressure signal from ignition control module illogical 9 Electronic hydraulic actuator (EHA) current faulty.035 126.029 Model Years 1988-91 (California version only) 1988-89 (California version only) 1988-89 (California version only) 1988-91 (California version only) 1988-89 (California version only) 1990-93 1990-93 1990-92 1990-93 FAULT CODE TABLE DTC Readout Possible Cause of Failure 1 No fault found 2 Throttle position switch .closed throttle position fault (idle) 11 Air injection system. 290 129.029 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Model Years 1990-92 Possible Cause of Failure No fault found Fuel pump relay (circuit 87) not functioning TN/TD signal (RPM) interrupted Output for oxygen sensor heater control defective Output for air injection pump control defective Output for kickdown switch control defective Not used Engine coolant temperature sensor signal out of range Circuit 50 failure Output failure of the start valve A/C compressor engagement signal missing (87Z) Output for A/C compressor control defective Excessive A/C compressor clutch slippage Vehicle speed signal illogical Short circuit detected in fuel primp circuit 16 .090 124.230 124.Continuous Fuel Injection System (MAS Controller) Models 124.026 124.066 201.030 124. 042 140. Injectors. open or short circuit. Secondary air injection system. Starter signal (circuit 50) missing. Left adjustable camshaft timing solenoid (Y49/1). Engine coolant temperature sensor circuit 2.043 140.057 140. open or short circuit. open or short circuit. I GR Start relay module (K29/1).034 124.no data transmission Oxygen sensor open circuit.no data transmission CAN data: Ignition control module .036 129. open or short circuit Adjustable camshaft timing solenoid. open or short circuit.032 140. Closed throttle position recognition from electronic accelerator control unit. Purge switchover valve. open or short circuit. Camshaft position sensor signal. FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 27 29 Model Years 1992-93 1992-93 1992-93 1992-93 Possible Cause of Failure No fault found Engine coolant temperature sensor circuit 1. Burn-off control for mass air sensor with hot-wire. Not used Not used Exhaust gas recirculation (EGR) switchover valve. Oxygen sensor heater. open or short circuit.Analog Models 140. Not used Not used TNA-signal (rpm signal ) incorrect or open or short circuit.067 140. open or short circuit. Open or short circuit. open or short circuit.LH Sequential Multiport Fuel Injection .no data transmission from DI module Left LH-SFI control module no data transmission to right LH-SFI control module LH-SFI control module . open or short circuit. open or short circuit. open or short circuit. Open or short circuit in ground wire. Voltage at mass air sensor (MAF) with hot wire circuit insufficient or too high. Intake air temperature sensor. short circuit.051 See digital LH injection page 18 for models 3/93 and later.076 124. open or short circuit 17 . CAN data: Electronic accelerator control module . 005 Not used. open or short circuit. 010 Closed throttle position recognition from electronic accelerator control unit. circuit open or short 017 CAN data: Electronic accelerator control module . open or short circuit 027 Injectors. 028 LH Control Module incorrectly coded or open circuit. cylinder 4 circuit short to positive 004 Injector. open or short circuit. Electronic Accelerator/Cruise Control (EA/CC/ISC pages 50 and 49). LH-SFI “Current” Fault Codes DTC Readout Possible Cause of Failure 001 Injector. 015 Not used. 026 Upshift Delay Switchover Valve. 029 1GR Start relay module (K29/1). (These fault codes numbers are only for the CS1000 Code Scanner. cylinder 5 open circuit or short to ground 011 Injector. 022 Oxygen sensor heater.no data transmission from DI module 019 Left LH-SFI control module no data transmission to right LH-SFI control module 020 LH-SFI control module . 016 EGR switchover valve.Digital Engines 104 119 120 Model Years 1992-1995 Also check for codes in the Diagnostic Module (DM page 43). short or open circuit 004 Voltage of Hot Wire MAF sensor too low or too high or ground wire has open circuit.) LH-SFI “Stored” Fault Codes DTC Readout Possible Cause of Failure 002 Engine coolant temperature sensor circuit 1. open or short circuit. 006 Japan only Exhaust temperature sensor. cylinder 5 circuit short to positive 003 Injector. Distributor Ignition (DI page 48) and the Base Module (BM page 47).no data transmission (Left or Right) 021 Oxygen sensor open circuit. 024 Left adjustable camshaft timing solenoid (Y49/1). Open or short circuit. cylinder 3 circuit short to positive 007 Injector. open or short circuit (119 only) 025 Adjustable camshaft timing solenoid. 014 Not used. open or short circuit. cylinder 1 circuit short to positive 002 Injector. 009 Starter signal (circuit 50) missing. 012 Burn-off control for mass air sensor with hot-wire. short circuit. cylinder 6 circuit short to positive 006 Injector. open or short circuit.LH Sequential Multiport Fuel Injection . circuit short or open 007 TNA-signal (rpm signal ) incorrect or open or short circuit.no data transmission 018 CAN data: Ignition control module . 008 Camshaft position sensor signal. open or short circuit These codes require special scanners to access. cylinder 7 circuit short to positive 008 Injector. open or short circuit. cylinder 1 open circuit or short to ground 010 Injector. cylinder 4 open circuit or short to ground 18 . 023 Purge switchover valve. open or short circuit. open or short circuit. cylinder 2 circuit short to positive 009 Injector. cylinder 8 circuit short to positive 005 Injector. short or open circuit 003 Engine coolant temperature sensor circuit 2. 011 Secondary air injection system. 013 Intake air temperature sensor. They are different from those found in the Mercedes Benz original Diagnostic Manual fault code tables. cylinder 2 open circuit or short to ground HFM sensor Voltage too high or too low. cylinder 6 open circuit or short to ground Injector. may open circuit Engine coolant temperature sensor short or open circuit Engine coolant temperature sensor short or open circuit Engine coolant temperature sensor signal questionable Intake air temperature sensor short or open circuit Exhaust temperature sensor short or open circuit (Japan version only) CO potentiometer open circuit (non KAT) LH-SFI control unit coding plug open circuit (not USA version) Starter signal missing (circuit 50). circuit short to ground Not used O2S 1 signal. No communication from LH control unit CAN communication problem. No communication from EZL/AKR ignition control unit CAN communication problem. cylinder 7 open circuit or short to ground Injector. circuit short or open EGR switchover valve circuit short or open camshaft timing Adjust solenoid circuit short or open camshaft timing Adjust solenoid circuit short or open First gear start relay circuit short or open Not used 19 . No communication from Cruise control/Electronic accelerator Not used Air injection system short or open circuit Fuel purge switchover valve open or short circuit Transmission switchover valve. short or open circuit Not used O2S 2 signal. No communication from LH control unit CAN communication problem. No communication from LH control unit CAN communication problem. cylinder 8 open circuit or short to ground Injector. circuit open or short First gear start relay. cylinder 3 open circuit or short to ground Injector. may short or open circuit Idle speed recognition from Cruise control/Electronic accelerator (CC/EA). circuit open or short Not used Air injection system circuit short or open Fuel purge switchover valve circuit short or open Transmission switchover valve relay or solenoid. short or open circuit Not used CAN communication problem. No communication from EZL/AKR ignition control unit CAN communication problem.DTC Readout 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029-030 031 032 033 034 035 036 037 038 038 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 Possible Cause of Failure Injector. No communication from ASR control unit CAN communication problem. circuit open or short Camshaft timing adjust solenoid. circuit open or short Camshaft timing adjust solenoid. circuit open or short EGR switchover valve. 13 O2S (Lambda) control system operating at rich or lean limit 14 Injector. cylinder 1 and 4) 23 Ignition output 2 or ignition coil for cylinder 3 and 4 (Engine 111. Model 202 AIR pump switchover valve and/or AIR relay module 36 Purge control valve .Analog Engines 104 111 Model Year 1993 See digital HFM injection section page 22 for models 3/93 and later.Current too high/low or short circuit.open/short to ground or B+ or open or closed or implausible 41 CAN communication from engine control module faulty 20 . cylinder 1 15 Injector. cylinder 2 16 Injector.open/short to ground or B+ 39 Exhaust gas recirculation switchover valve . 12 O2S 2 heater (after TWC) . 9 O2S 1 (before TWC) .open or short to ground 28 VSS . Also check for codes in the Diagnostic Module (DM page 41 and 43) and the Electronic Accelerator/Cruise Control (EA/CC/ISC pages 50 and 49).Check vacuum and adjust Bowden cable.voltage too high. 38 Adjustable camshaft timing solenoid .129 and 140 AIR pump switchover valve and/or electromagnetic AIR pump clutch.HFM Sequential Multiport Fuel Injection .open/short to ground or B+ 40 Transmission overload protection switch . cylinder 3 17 Injector. cylinder 4 18 Injector. cylinder 2 and 3) 24 CKP sensor or magnet for position sensor not recognized 25 CMP sensor not recognized or implausible 26 Not used 27 TN-signal (rpm signal ) . circuit open or voltage implausible 10 O2S 2 (after TWC)voltage too high.open circuit 29 Not used 30 Fuel pump relay module . circuit open or voltage implausible 11 O2S 1 heater (before TWC) .Current too high/low or short circuit. FAULT CODE TABLE DTC Readout Possible Cause of Failure 1 No fault found 2 Engine Coolant temperature sensor 3 Intake air temperature sensor 4 Hot film mass air flow sensor 5 CTP switch 6-7 Not used 8 Idle speed control (ISC) system at upper or lower control stop or CC or EA indicates "limp home" mode. cylinder 5 19 Injector.open/short to ground or B+ 37 Transmission Upshift delay switchover valve (Y3/3) without function (Logic Chain) .open or short circuit 31 Not used 32 Knock sensors 1 and /or 2 33 Maximum retard setting on at least one cylinder has been reached or the ignition angle deviation between the individual cylinders is greater than 6 degrees crankshaft angle 34 Knock control-output switch in engine control module faulty Momentary fault in self-adaptation closed throttle speed/partial load 35 Model 124. cylinder 6 20 Self-adaptation at idle speed or upper/lower partial load at rich or lean limit 21 Ignition output 3 or ignition coil for cylinder 1 and 6 22 Ignition output 1 or ignition coil for cylinder 2 and 5 (Engine 111. Engine control module faulty or not coded.open/short to ground or B+ O2S 2 (after TWC) heating circuit relay module .DTC Readout 42 43 44 45 46 48 49 50 Possible Cause of Failure CAN communication from ASR.open/short to ground or B+ Voltage supply at engine control module implausible/low volts. EA/CC/ISC module or diagnostic module (OBD II) faulty Starter signal (circuit 50) not present Not used Fuel safety shut-off of electronic accelerator or cruise control active Resonance intake manifold switchover valve . 21 . diaphragm pressure regulator) 33 (037) Injection valve cylinder 1.EFP actuator signals in limp home mode (emergency mode).). heater current (amp) too large 27 (031) O2 sensor heater (before/upstream of Cat. short to positive 38 (042) Injection valve cylinder 3.). Conv. fuel injectors. Mercedes factory numbers are listed under MB for referral to factory literature. Conv. 20 (024) O2 sensor (before/upstream of Cat. short circuit 28 (032) O2 sensor heater (after/downstream of Cat. malfunction.HFM Sequential Multiport Fuel Injection . 2.Digital Engines 111 (4 cylinder.). open circuit 24 (028) O2 sensor (after/downstream of Cat. 17 (021) ISC (Idle speed control) at upper control stop area. short to positive 34 (038) Injection valve cylinder 1. open circuit or short to ground 37 (041) Injection valve cylinder 3. Conv. Conv.Signal Too High 7 (010) Hot Film Air Mass Sensor . 14 (017) Throttle valve potentiometer drive value implausibly high. heating current (amp) too large 30 (034) O2 sensor heater (after/downstream of Cat. heating current. (Code Scanner will display the fault code numbers listed under OB15.). malfunction. heating current (amp) too small 29 (033) O2 sensor heater (after/downstream of Cat. 16 (020) ISC (Idle speed control) at lower control stop area. mixture too rich (lean stop) (Intake air leak. Conv. Conv. heater current (amp) too small 26 (030) O2 sensor heater (before/upstream of Cat. open circuit or short to ground 22 . 13 (015) Throttle valve potentiometer actual value too low.).).). voltage too large 23 (027) O2 sensor (after/downstream of Cat. signal incorrect 25 (029) O2 sensor heater (before/upstream of Cat. Conv.Intermittent Contact 4 (006) Intake Air Temperature Sensor.). fuel injectors.Short Circuit 2 (003) Engine Coolant Temperature Sensor .2L engine) Model Years 1994-97 1994-97 Also check for codes in the Diagnostic Module (DM page 43) and the Electronic Accelerator/Cruise Control (EA/CC/ISC pages 50 and 49).Open Circuit 3 (004) Engine Coolant Temperature Sensor . 15 (018) Throttle valve potentiometer drive value implausibly low. Conv. 19 (023) O2 sensor (before/upstream of Cat. voltage too large.2/2.Intermittent Contact 6 (009) Hot Film Air Mass Sensor .).) OB15 MB Description 0 No Fault Found 1 (002) Engine Coolant Temperature Sensor . mixture too lean (rich stop) (Intake air leak.). open circuit or short to ground 35 (039) Injection valve cylinder 2. Conv. diaphragm pressure regulator) 32 (036) Fuel adaptation (lambda) control. heater current.). Short Circuit 5 (007) Intake Air Temperature Sensor. 2. Conv. 18 (022) CC. Conv.8/3. short circuit 31 (035) Fuel adaptation (lambda) control.3L engine) 104 (6 cylinder. Open Circuit (008) Intake Air Temperature Sensor . Conv.Signal Incorrect (005) Engine Coolant Temperature Sensor . HFM-SFI Stored Fault Codes Only Stored Fault Codes illuminate the Check Engine Light.). signal incorrect 22 (026) O2 sensor (after/downstream of Cat.Open Circuit 8 (011) Engine idle speed contact Throttle valve position too large 9 Not used 10 (012) Engine idle speed contact air mass too large 11 (113) HFM-SFI control unit not coded 12 (014) Throttle valve potentiometer actual value too high. open circuit 21 (025) O2 sensor (before/upstream of Cat. short to positive 36 (040) Injection valve cylinder 2. fuel injectors.OB15 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82-83 84 85 86 87-88 89 90 MB (043) (044) (045) (046) (047) (048) (049) (050) (051) (052) (053) (054) (061) (062) (063) (055) (056) (057) (058) (059) (060) (064) (065) (066) (067) (068) (069) (070) (071) (072) (073) (074) (076) (077) (079) (080) (081) (082) (083) (084) (085) (086) (087) (088) (089) (090) Description Injection valve cylinder 4. fuel injectors. wear engine) Self-adjustment too rich at Upper part load (Intake air leak. fuel injectors. Cylinder 4 misfires Ignition system output stage 2. open circuit or short to ground Self-adjustment too rich at Idle (Intake air leak. wear engine) Ignition system output stage 3. wear engine) Self-adjustment too lean at Lower part load (Intake air leak. Cylinder 2 misfires Ignition system output stage 1. open circuit or short to ground Injection valve cylinder 6. fuel injectors. wear engine) Self-adjustment too lean at Idle (Intake air leak. Cylinder 6 misfires Ignition system output stage 3. short to positive Transmission Upshift delay switchover valve (Y3/3) without function (Logic Chain) Not used Camshaft timing adjust actuator circuit short to positive Camshaft timing adjust actuator open circuit or short to ground 23 . open circuit or short to ground Injection valve cylinder 5. diaphragm pressure regulator. short to positive Injection valve cylinder 4. Current value not reached Crankshaft signal incorrect Crankshaft signal Magnet missing or Number of teeth incorrect Crankshaft signal Speed incorrect. diaphragm pressure regulator. Current value not reached Ignition system output stage 1. diaphragm pressure regulator. Cylinder 5 misfires Ignition system output stage 1. wear engine) Self-adjustment too rich at Lower part load (Intake air leak. HFM control unit defective Short-term self-adjustment Idle/Part-load fault Air pump relay-module/switch-valve output. too high Camshaft signal incorrect/not recognized HFM circuit/trimming plug short to ground HFM circuit/trimming plug open circuit or short to positive TN speed signal (rpm) Output short to ground TN speed signal (rpm) Output short to positive Vehicle speed signal not recognized. short circuit Vehicle speed signal implausibly high. short circuit PSV relay K3/1 circuit short to positive Not used Fuel pump relay open circuit or short circuit Not used CO potentiometer Input short to positive Knock sensor 1 signal open circuit Knock sensor 2 signal open circuit Ignition timing max retardation reached at least one cylinder Ignition angle deviation between the individual cylinders too high Knock control analysis. Cylinder 1 misfires Ignition system output stage 3. open circuit/short circuit Fuel purge switch-valve. diaphragm pressure regulator. short to positive Injection valve cylinder 5. diaphragm pressure regulator. open circuit or short circuit Not used Fuel purge switch-valve. fuel injectors. Cylinder 3 misfires Ignition system output stage 2. diaphragm pressure regulator. fuel injectors. short to positive Injection valve cylinder 6. Current value not reached Ignition system output stage 2. wear engine) Self-adjustment too lean at Upper part load (Intake air leak. Conv. Loose contact Potentiometer throttle valve drive. Conv. short to positive Resonance intake manifold switchover valve. short to ground HFM control unit identification illogical Oxygen sensor heater (after/downstream of Cat. open circuit/short to ground Ignition dwell angle control output stage. Loose contact Idle speed contact. open or short circuit Thermocouple CAT B16/6 Temperature too high Thermocouple CAT B16/6 Temperature too low Fuel safety cut-off settled Not used Resonance intake manifold switchover valve. short to positive Oxygen sensor heater (after/downstream of Cat.). Loose contact CO potentiometer R33 Loose contact Not used 24 . incorrect Voltage supply at HFM-SFI control unit.OB15 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127-128 MB (091) (092) (093) (094) (095) (096) (097) (098) (116) (099) (100) (117) (101) (102) (103) (104) (105) (106) (107) (114) (108) (109) (115) (110) (111) (112) (005) (008) (013) (016) (019) (078) Description EGR switch-valve short to positive EGR switch-valve open circuit or short to ground Transmission overload protection switch short to ground Transmission overload protection switch. voltage too low HFM control unit faulty Coolant temperature sensor. Loose contact Intake air temperature sensor. Loose contact Potentiometer throttle valve. open circuit or short to ground HFM-SFI control unit N3/4 coding bytes illogical Not used Voltage supply to HFM-SFI control unit. ( if equip with IRCL) Voltage supply at Circuit 87M. low voltage or implausible (Starting 06/93) Not used CAN problem No data reception from EFP. circuit short or open Transmission overload protection switch.TPM CAN problem No data reception from Diagnosis Module Not used Attempt to start with IRCL locked No starter signal (Terminal 50). circuit short or open Transmission overload protection switch signal implausible CAN problem Transmission communication from HFM control system faulty CAN problem No data reception from ASR CAN problem No data reception from IRCL.). diaphragm pressure regulator.8/2. No Intake manifold pressure 008 (011) Idle speed contact closed signal incorrect 009 (068) Idle speed contact open circuit 010-011 Not used 012 (013) Potentiometer throttle valve. wear engine) 047 (036) Self-adjustment too rich at Part load (Intake air leak. short circuit 028-030 Not used 031 (028) Fuel adaptation (lambda) control mixture too lean (Intake air leak.(Code Scanner will display the fault code numbers listed under OB15.Digital Engines 111 (4 cylinders. diaphragm pressure regulator. fuel injectors. open circuit 006 (009) PMS Control unit. short circuit 002 (003) Coolant temperature sensor.) OB15 MB Description 001 (002) Coolant temperature sensor. 1. wear engine) 046 (035) Self-adjustment too lean at Idle (Intake air leak. fuel injectors. fuel injectors. Mercedes factory numbers are listed under MB. open circuit or short to positive 038 (065) Input signal from IFZ. diaphragm pressure regulator) 033 (030) Injection valve cylinder 1/4 short to positive 034 (031) Injection valve cylinder 1/4 open circuit or short to ground 035 (032) Injection valve cylinder 2/3 short to positive 036 (033) Injection valve cylinder 2/3 open circuit or short to ground 037 (064) Input signal from IFZ. malfunction 018 (021) Idle speed control in limp home-mode (emergency operation) 019 (022) O2 sensor voltage too large 020 (023) O2 sensor. short to ground 039 (066) IFZ system unresponsive 040 (067) Input signal from IFZ incorrect 041-044 Not used 045 (034) Self-adjustment too rich at Idle (Intake air leak. fuel injectors.0L engine) Model Years 1994-97 PMS Stored Fault Codes Only Stored Fault Codes illuminate the Check Engine Light. diaphragm pressure regulator. open circuit 003 (004) Coolant temperature sensor. fuel injectors. value too high 013 (014) Potentiometer throttle valve. short circuit 005 (007) Intake air temperature sensor. wear engine) 25 . Intake manifold pressure implausible 007 (010) PMS Control unit. diaphragm pressure regulator) 032 (029) Fuel adaptation (lambda) control mixture too rich (Intake air leak.PMS (PEC) Fuel Injection . malfunction 017 (020) Idle speed control at upper control stop area. incorrect 004 (006) Intake air temperature sensor. value too low 014 (016) Potentiometer throttle valve drive value too high/incorrect 015 (017) Potentiometer throttle valve drive value too low/incorrect 016 (019) Idle speed control at lower control stop area. open circuit 021 (024) O2 sensor signal illogical 022 (069) Exhaust flap short to positive 023 (070) Exhaust flap open circuit or short to ground 024 Not used 025 (025) O2 sensor heater current (amps) too small 026 (026) O2 sensor heater current (amps) too large 027 (027) O2 sensor heater. Cylinder 1/4 misfires Ignition system output stage 1. Loose contact Not used 26 . Loose contact potentiometer throttle valve drive value. Loose contact CO potentiometer circuit. wear engine) Not used Ignition system output stage 1. Loose contact Intake air temperature sensor. too high Not used PMS circuit/trimming plug short to ground PMS circuit/trimming plug open circuit or short to positive TN speed signal (rpm) Output short to ground TN speed signal (rpm) Output short to positive Vehicle speed signal not recognized. open circuit or short circuit Not used Transmission protection short to ground or active too long Not used Transmission protection open circuit or short to positive Not used PMS control unit voltage supply too low Not used Coolant temperature sensor. Amperage not achieved Not used Crankshaft signal incorrect Crankshaft signal Magnet missing or Numbers of teeth incorrect Crankshaft signal Speed incorrect.OB15 048 049-050 051 052 053 054 055 056 057-059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 ~079 080 081 082 083 084 085 086 087 ~092 093 094-095 096 097 ~ 118 119 120 121 122 123 124 125 126 127-128 MB (037) (038) (039) (040) (041) (042) (043) (044) (045) (046) (047) (048) (049) (050) (051) (052) (053) (054) (055) (056) (057) (061) (071) (072) (059) (060) (062) (073) (074) (063) (005) (008) (012) (015) (018) (058) Description Self-adjustment too lean at Part load (Intake air leak. short circuit PSV relay open circuit or short to positive PSV relay short to ground Fuel pump relay open circuit or short to positive Fuel pump relay short to ground CO potentiometer Input circuit short to positive Not used Short-term self-adjustment faulty at idle speed or part load Rear axle ratio was changed Rear axle ratio signal incorrect Not used Fuel purge switch-valve open circuit or short to positive Fuel purge switch-valve short to ground Transmission shifting delay/smooth switch-valve. short to positive Ignition system output stage 2. Loose contact Idle speed contact. short to positive Ignition system output stage 1. Loose contact Potentiometer throttle valve. Amperage not achieved Ignition system output stage 2. short circuit Vehicle speed signal too high. Cylinder 2/3 misfires Ignition system output stage 2. diaphragm pressure regulator. fuel injectors. DI and BM codes.8/3. 2.Timing Over-Advanced or System Performance (Bank 2) P0022 A Camshaft Position . DM.4/2.ME Sequential Multiport Fuel Injection (ME-SFI) Engines 104 (6 cylinders.Actuator Circuit (Bank 2) P0024 B Camshaft Position . 2.0L) 120 (12 cylinder engine) Model Years 8/968/968/978/988/95-1998 8/95-2000 ME-SFI ME Injection incorporates EA/CC/ISC.2/5.Timing Over-Retarded (Bank 2) P0023 B Camshaft Position .2.Timing Over-Advanced or System Performance (Bank 2) P0025 B Camshaft Position .2L engine) 111 (4 cylinder 2.Actuator Circuit (Bank 1) P0014 B Camshaft Position .Timing Over-Retarded (Bank 1) P0013 B Camshaft Position . 2.Timing Over-Advanced or System Performance (Bank 1) P0015 B Camshaft Position .3L) 112 (V6 engine.0.0L) 119 (V8 engine 4.Timing Over-Advanced or System Performance (Bank 1) P0012 A Camshaft Position .2L) 113 (V8 engine. 5. 4.3. MB ME Code Description P00XX Fuel and Air Metering and Auxiliary Emission Controls P0010 A Camshaft Position Actuator Circuit (Bank 1) P0011 A Camshaft Position .8/3.Timing Over-Retarded (Bank 1) P0020 A Camshaft Position Actuator Circuit (Bank 2) P0021 A Camshaft Position .Timing Over-Retarded (Bank 2) P0030 H02S Heater Control Circuit (Bank 1) Sensor 1) P0031 H02S Heater Control Circuit Low (Bank 1 Sensor 1) P0032 H02S Heater Control Circuit High (Bank 1 Sensor 1) P0033 Turbo Charger Bypass Valve Control Circuit P0034 Turbo Charger Bypass Valve Control Circuit Low P0035 Turbo Charger Bypass Valve Control Circuit High P0036 H02S Heater Control Circuit (Bank 1 Sensor 2) P0037 H02S Heater Control Circuit Low (Bank 1 Sensor 2) P0038 H02S Heater Control Circuit High (Bank 1 Sensor 2) P0042 H02S Heater Control Circuit (Bank 1 Sensor 3) P0043 H02S Heater Control Circuit Low (Bank 1 Sensor 3) P0044 H02S Heater Control Circuit High (Bank 1 Sensor 3) P0050 H02S Heater Control Circuit (Bank 2 Sensor 1) P0051 H02S Heater Control Circuit Low (Bank 2 Sensor 1) P0052 H02S Heater Control Circuit High (Bank 2 Sensor 1) P0056 H02S Heater Control Circuit (Bank 2 Sensor 2) P0057 H02S Heater Control Circuit Low (Bank 2 Sensor 2) P0058 H02S Heater Control Circuit High (Bank 2 Sensor 2) P0062 H02S Heater Control Circuit (Bank 2 Sensor 3) P0063 H02S Heater Control Circuit Low (Bank 2 Sensor 3) P0064 H02S Heater Control Circuit High (Bank 2 Sensor 3) P0065 Air Assisted Injector Control Range/Performance P0066 Air Assisted Injector Control Circuit or Circuit Low P0067 Air Assisted Injector Control Circuit High P0070 Ambient Air Temperature Sensor Circuit P0071 Ambient Air Temperature Sensor Range/Performance P0072 Ambient Air Temperature Sensor Circuit Low Input P0073 Ambient Air Temperature Sensor Circuit High Input P0074 Ambient Air Temperature Sensor Circuit Intermittent P0075 Intake Valve Control Solenoid Circuit (Bank 1) 27 . 2. EA/CC/ISC Actuator Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem Throttle/Pedal Position Sensor/Switch A Circuit Low Input Throttle/Pedal Position Sensor/Switch A Circuit High Input Throttle/Pedal Position Sensor/Switch A Circuit Intermittent Insufficient Coolant Temperature for Closed Loop Fuel Control Insufficient Coolant Temperature for Stable Operation Intake Air Temperature Too High Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) 02 Sensor Circuit (Bank 1 Sensor 1) 02 Sensor Circuit Low Voltage (Bank 1 Sensor 1) 02 Sensor Circuit High Voltage (Bank 1 Sensor 1) 02 Sensor Circuit Slow Response (Bank 1 Sensor 1) 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) 02 Sensor Heater Circuit (Bank 1 Sensor 1) 02 Sensor Circuit Malfunction (Bank 1 Sensor 2) 02 Sensor Circuit Low Voltage (Bank 1 Sensor 2) 02 Sensor Circuit High Voltage (Bank 1 Sensor 2) 02 Sensor Circuit Slow Response (Bank 1 Sensor 2) 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) 02 Sensor Heater Circuit (Bank 1 Sensor 2) 02 Sensor Circuit Malfunction (Bank 1 Sensor 3) 02 Sensor Circuit Low Voltage (Bank 1 Sensor 3) 28 .MB P0076 P0077 P0078 P0079 P0080 P0081 P0082 P0083 P0084 P0085 P0086 P01XX P0100 P0101 P0102 P0103 P0104 P0105 P0106 P0107 P0108 P0109 P0110 P0111 P0112 P0113 P0114 P0115 P0116 P0117 P0118 P0119 P0120 P0121 P0122 P0123 P0124 P0125 P0126 P0127 P0128 P0130 P0131 P0132 P0133 P0134 P0135 P0136 P0137 P0138 P0139 P0140 P0141 P0142 P0143 ME Code Description Intake Valve Control Solenoid Circuit Low (Bank 1) Intake Valve Control Solenoid Circuit High (Bank 1) Exhaust Valve Control Solenoid Circuit (Bank 1) Exhaust Valve Control Solenoid Circuit Low (Bank 1) Exhaust Valve Control Solenoid Circuit High (Bank 1) Intake valve Control Solenoid Circuit (Bank 2) Intake Valve Control Solenoid Circuit Low (Bank 2) Intake Valve Control Solenoid Circuit High (Bank 2) Exhaust Valve Control Solenoid Circuit (Bank 2) Exhaust Valve Control Solenoid Circuit Low (Bank 2) Exhaust Valve Control Solenoid Circuit High (Bank 2) Fuel and Air Metering Mass or Volume Air Flow Circuit Mass or Volume Air Flow Circuit Range/Performance Problem Mass or Volume Air Flow Circuit Low Input Mass or Volume Air Flow Circuit High Input Mass or Volume Air Flow Circuit Intermittent Manifold Absolute Pressure/Barometric Pressure Circuit Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem Manifold Absolute Pressure/Barometric Pressure Circuit Low Input Manifold Absolute Pressure/Barometric Pressure Circuit High Input Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent Intake Air Temperature Circuit Intake Air Temperature Circuit Range/Performance Problem Intake Air Temperature Circuit Low Input Intake Air Temperature Circuit High Input Intake Air Temperature Circuit Intermittent Engine Coolant Temperature Circuit Engine Coolant Temperature Circuit Range/Performance Problem Engine Coolant Temperature Circuit Low Input Engine Coolant Temperature Circuit High Input Engine Coolant Temperature Circuit Intermittent Throttle/Pedal Position Sensor/Switch A Circuit. MB P0144 P0145 P0146 P0147 P0148 P0149 P0150 P0151 P0152 P0153 P0154 P0155 P0156 P0157 P0158 P0159 P0160 P0161 P0162 P0163 P0164 P0165 P0166 P0167 P0168 P0169 P0170 P0171 P0172 P0173 P0174 P0175 P0176 P0177 P0178 P0179 P0180 P0181 P0182 P0183 P0184 P0185 P0186 P0187 P0188 P0189 P0190 P0191 P0192 P0193 P0194 P0195 P0196 P0197 P0198 ME Code Description 02 Sensor Circuit High Voltage (Bank 1 Sensor 3) 02 Sensor Circuit Slow Response (Bank 1 Sensor 3) 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 3) 02 Sensor Heater Circuit (Bank 1 Sensor 3) Fuel Delivery Error Fuel Timing Error 02 Sensor Circuit (Bank 2 Sensor 1) 02 Sensor Circuit Low Voltage (Bank 2 Sensor 1) 02 Sensor Circuit High Voltage (Bank 2 Sensor 1) 02 Sensor Circuit Slow Response (Bank 2 Sensor 1) 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1) 02 Sensor Heater Circuit (Bank 2 Sensor 1) 02 Sensor Circuit Malfunction (Bank 2 Sensor 2) 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2) 02 Sensor Circuit High Voltage (Bank 2 Sensor 2) 02 Sensor Circuit Slow Response (Bank 2 Sensor 2) 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2) 02 Sensor Heater Circuit (Bank 2 Sensor 2) 02 Sensor Circuit Malfunction (Bank 2 Sensor 3) 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3) 02 Sensor Circuit High Voltage (Bank 2 Sensor 3) 02 Sensor Circuit Slow Response (Bank 2 Sensor 3) 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3) 02 Sensor Heater Circuit (Bank 2 Sensor 3) Fuel Temperature Too High Incorrect Fuel Composition Fuel Trim (Bank 1) System too Lean (Bank 1) System too Rich (Bank 1) Fuel Trim Malfunction (Bank 2) System too Lean (Bank 2) System too Rich (Bank 2) Fuel Composition Sensor Circuit Fuel Composition Sensor Circuit Range/Performance Fuel Composition Sensor Circuit Low Input Fuel Composition Sensor Circuit High Input Fuel Temperature Sensor A Circuit Fuel Temperature Sensor A Circuit Range/Performance Fuel Temperature Sensor A Circuit Low Input Fuel Temperature Sensor A Circuit High Input Fuel Temperature Sensor A Circuit Intermittent Fuel Temperature Sensor B Circuit Fuel Temperature Sensor B Circuit Range/Performance Fuel Temperature Sensor B Circuit Low Input Fuel Temperature Sensor B Circuit High Input Fuel Temperature Sensor B Circuit Intermittent Fuel Rail Pressure Sensor Circuit Fuel Rail Pressure Sensor Circuit Range/Performance Fuel Rail Pressure Sensor Circuit Low Input Fuel Rail Pressure Sensor Circuit High Input Fuel Rail Pressure Sensor Circuit Intermittent Engine Oil Temperature Sensor Engine Oil Temperature Sensor Range/Performance Engine Oil Temperature Sensor Low Engine Oil Temperature Sensor High 29 . Cylinder 2 Injector Circuit .Cylinder 10 Injector Circuit .Cylinder 6 Injector Circuit .Cylinder 3 Injector Circuit .Cylinder 5 Injector Circuit .Cylinder 9 Injector Circuit .Cylinder 7 Injector Circuit .Cylinder 11 Injector Circuit .Cylinder 4 Injector Circuit .Cylinder 1 Injector Circuit .Cylinder 12 Cold Start Injector 1 Cold Start Injector 2 Engine Shutoff Solenoid Injector/Injection Timing Control Circuit Engine Coolant Over Temperature Condition Transmission Fluid Over Temperature Condition Engine Overspeed Condition Throttle/Pedal Position Sensor/Switch "B" Circuit Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance Problem Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input Throttle/Pedal Position Sensor/Switch "B" Circuit High Input Throttle/Pedal Position Sensor/Switch "B" Circuit Intermittent Throttle/Pedal Position Sensor/Switch "C" Circuit Throttle/Pedal Position Sensor/Switch "C" Circuit Range/Performance Problem Throttle/Pedal Position Sensor/Switch "C" Circuit Low Input Throttle/Pedal Position Sensor/Switch "C" Circuit High Input Throttle/Pedal Position Sensor/Switch "C" Circuit Intermittent Fuel Pump Primary Circuit Fuel Pump Secondary Circuit Low Fuel Pump Secondary Circuit High Fuel Pump Secondary Circuit Intermittent Turbo/Super Charger Overboost Condition Turbo/Super Charger Boost Sensor "A" Circuit Turbo/Super Charger Boost Sensor "A" Circuit Range/Performance Turbo/Super Charger Boost Sensor "A" Circuit Low Turbo/Super Charger Boost Sensor "A" Circuit High Turbo/Super Charger Boost Sensor "B" Circuit Turbo/Super Charger Boost Sensor "B" Circuit Range/Performance Turbo/Super Charger Boost Sensor "B" Circuit Low Turbo/Super Charger Boost Sensor "B" Circuit High Turbo/Super Charger Wastegate Solenoid "A" Turbo/Super Charger Wastegate Solenoid "A" Range/Performance Turbo/Super Charger Wastegate Solenoid "A" Low Turbo/Super Charger Wastegate Solenoid "A" High Turbo/Super Charger Wastegate Solenoid "B" Turbo/Super Charger Wastegate Solenoid "B" Range/Performance Turbo/Super Charger Wastegate Solenoid "B" Low Turbo/Super Charger Wastegate Solenoid "B" High Injection Pump Fuel Metering Control "A" (Cam/Rotor/injector) Injection Pump Fuel Metering Control "A" Range/Performance (Cam/Rotor/Injector) 30 .Cylinder 8 Injector Circuit .MB P0199 P02XX P0200 P0201 P0202 P0203 P0204 P0205 P0206 P0207 P0208 P0209 P0210 P0211 P0212 P0213 P0214 P0215 P0216 P0217 P0218 P0219 P0220 P0221 P0222 P0223 P0224 P0225 P0226 P0227 P0228 P0229 P0230 P0231 P0232 P0233 P0234 P0235 P0236 P0237 P0238 P0239 P0240 P0241 P0242 P0243 P0244 P0245 P0246 P0247 P0248 P0249 P0250 P0251 P0252 ME Code Description Engine Oil Temperature Sensor Intermittent Fuel and Air Metering Injector Circuit Injector Circuit . MB P0253 P0254 P0255 P0256 P0257 P0258 P0259 P0260 P0261 P0262 P0263 P0264 P0265 P0266 P0267 P0268 P0269 P0270 P0271 P0272 P0273 P0274 P0275 P0276 P0277 P0278 P0279 P0280 P0281 P0282 P0283 P0284 P0285 P0286 P0287 P0288 P0289 P0290 P0291 P0292 P0293 P0294 P0295 P0296 P0298 P03XX P0300 P0301 P0302 P0303 P0304 P0305 P0306 P0307 P0308 ME Code Description Injection Pump Fuel Metering Control "A" Low (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "A" High (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "A" Intermittent (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "B" Range/Performance (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "B" Low (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "B" High (Cam/Rotor/Injector) Injection Pump Fuel Metering Control "B" Intermittent (Cam/Rotor/Injector) Cylinder 1 Injector Circuit Low Cylinder 1 Injector Circuit High Cylinder 1 Contribution/Balance Cylinder 2 Injector Circuit Low Cylinder 2 Injector Circuit High Cylinder 2 Contribution/Balance Cylinder 3 Injector Circuit Low Cylinder 3 Injector Circuit High Cylinder 3 Contribution/Balance Cylinder 4 Injector Circuit Low Cylinder 4 Injector Circuit High Cylinder 4 Contribution/Balance Cylinder 5 Injector Circuit Low Cylinder 5 Injector Circuit High Cylinder 5 Contribution/Balance Cylinder 6 Injector Circuit Low Cylinder 6 Injector Circuit High Cylinder 6 Contribution/Balance Cylinder 7 Injector Circuit Low Cylinder 7 Injector Circuit High Cylinder 7 Contribution/Balance Cylinder 8 Injector Circuit Low Cylinder 8 Injector Circuit High Cylinder 8 Contribution/Balance Cylinder 9 Injector Circuit Low Cylinder 9 Injector Circuit High Cylinder 9 Contribution/Balance Cylinder 10 Injector Circuit Low Cylinder 10 Injector Circuit High Cylinder 10 Contribution/Balance Cylinder 11 Injector Circuit Low Cylinder 11 Injector Circuit High Cylinder 11 Contribution/Balance Cylinder 12 Injector Circuit Low Cylinder 12 Injector Circuit High Cylinder 12 Contribution/Balance Engine Oil Over Temperature Ignition System or Misfire Random/Multiple Cylinder Misfire Detected . Ignition or Injection Malfunction Cylinder 1 Misfire Detected Cylinder 2 Misfire Detected Cylinder 3 Misfire Detected Cylinder 4 Misfire Detected Cylinder 5 Misfire Detected Cylinder 6 Misfire Detected Cylinder 7 Misfire Detected Cylinder 8 Misfire Detected 31 .Mechanical. MB P0309 P0310 P0311 P0312 P0313 P0314 P0320 P0321 P0322 P0323 P0324 P0325 P0326 P0327 P0328 P0329 P0330 P0331 P0332 P0333 P0334 P0335 P0336 P0337 P0338 P0339 P0340 P0341 P0342 P0343 P0344 P0345 P0346 P0347 P0348 P0349 P0350 P0351 P0352 P0353 P0354 P0355 P0356 P0357 P0358 P0359 P0360 P0361 P0362 P0365 P0366 P0367 P0368 P0369 P0370 ME Code Description Cylinder 9 Misfire Detected Cylinder 10 Misfire Detected Cylinder 11 Misfire Detected Cylinder 12 Misfire Detected Misfire Detected with Low Fuel Single Cylinder Misfire (Cylinder not Specified) Ignition/Distributor Engine Speed Input Circuit Ignition/Distributor Engine Speed Input Circuit Range/Performance Ignition/Distributor Engine Speed Input Circuit No Signal Ignition/Distributor Engine Speed Input Circuit Intermittent Knock Control System Error Knock Sensor 1 Circuit (Bank 1 or Single Sensor Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor Knock Sensor 2 Circuit (Bank 2) Knock Sensor 2 Circuit Range/Performance (Bank 2) Knock Sensor 2 Circuit Low Input (Bank 2) Knock Sensor 2 Circuit High Input (Bank 2) Knock Sensor 2 Circuit Input Intermittent (Bank 2) Crankshaft Position Sensor A Circuit Crankshaft Position Sensor A Circuit Range/Performance Crankshaft Position Sensor A Circuit Low Input Crankshaft Position Sensor A Circuit High Input Crankshaft Position Sensor A Circuit Intermittent Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 or Single Sensor Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) Camshaft Position Sensor "A" Circuit Intermittent (Bank 1 or Single Sensor Camshaft Position Sensor "A" Circuit (Bank 2) Camshaft Position Sensor "A" Circuit Range/Performance (Bank 2) Camshaft Position Sensor "A" Circuit Low Input (Bank 2) Camshaft Position Sensor "A" Circuit High Input (Bank 2) Camshaft Position Sensor "A" Circuit Intermittent (Bank 2) Ignition Coil Primary/Secondary Circuit Ignition Coil "A" Primary/Secondary Circuit Ignition Coil "B" Primary/Secondary Circuit Ignition Coil "C" Primary/Secondary Circuit Ignition Coil "D" Primary/Secondary Circuit Ignition Coil "E" Primary/Secondary Circuit Ignition Coil “F" Primary/Secondary Circuit Ignition Coil "G" Primary/Secondary Circuit Ignition Coil "H" Primary/Secondary Circuit Ignition Coil "I" Primary/Secondary Circuit Ignition Coil "J" Primary/Secondary Circuit Ignition Coil "K" Primary/Secondary Circuit Ignition Coil "L" Primary/Secondary Circuit Camshaft Position Sensor "B" Circuit (Bank 1) Camshaft Position Sensor "B" Circuit Range/Performance (Bank 1) Camshaft Position Sensor "B" Circuit Low Input (Bank 1) Camshaft Position Sensor "B" Circuit High Input (Bank 1) Camshaft Position Sensor "B" Circuit Intermittent (Bank 1) Timing Reference High Resolution Signal "A" (Camshaft to Crankshaft Angle) 32 . MB P0371 P0372 P0373 P0374 P0375 P0376 P0377 P0378 P0379 P0380 P0381 P0382 P0385 P0386 P0387 P0388 P0389 P0390 P0391 P0392 P0393 P0394 P04XX P0400 P0401 P0402 P0403 P0404 P0405 P0406 P0407 P0408 P0409 P0410 P0411 P0412 P0413 P0414 P0415 P0416 P0417 P0418 P0419 P0420 P0421 P0422 P0423 P0424 P0425 P0426 P0427 P0428 P0429 P0430 P0431 ME Code Description Timing Reference High Resolution Signal "A" Too Many Pulses Timing Reference High Resolution Signal "A" Too Few Pulses Timing Reference High Resolution Signal "A" Intermittent/Erratic Pulses Timing Reference High Resolution Signal "A" No Pulse Timing Reference High Resolution Signal "B" Timing Reference High Resolution Signal "B" Too Many Pulses Timing Reference High Resolution Signal "B" Too Few Pulses Timing Reference High Resolution Signal "B" Intermittent/Erratic Pulses Timing Reference High Resolution Signal "B" No Pulses Glow Plug/Heater Circuit "A" Glow Plug/Heater Indicator Circuit Glow Plug/Heater Circuit "B" Crankshaft Position Sensor "B" Circuit Crankshaft Position Sensor "B" Circuit Range/Performance Crankshaft Position Sensor "B" Circuit Low Input Crankshaft Position Sensor "B" Circuit High Input Crankshaft Position Sensor "B" Circuit Intermittent Camshaft Position Sensor "B" Circuit (Bank 2) Camshaft Position Sensor "B" Circuit Range/Performance (Bank 2) Camshaft Position Sensor "B" Circuit Low Input (Bank 2) Camshaft Position Sensor "B" Circuit High Input (Bank 2) Camshaft Position Sensor "B" Circuit Intermittent (Bank 2) Auxiliary Emission Controls Exhaust Gas Recirculation Flow Exhaust Gas Recirculation Flow Insufficient Detected Exhaust Gas Recirculation Flow Excessive Detected Exhaust Gas Recirculation Control Circuit Exhaust Gas Recirculation Control Circuit Range/Performance Exhaust Gas Recirculation Sensor "A" Circuit Low Exhaust Gas Recirculation Sensor "A" Circuit High Exhaust Gas Recirculation Sensor "B" Circuit Low Exhaust Gas Recirculation Sensor "B" Circuit High Exhaust Gas Recirculation Sensor "A" Circuit Secondary Air Injection System Secondary Air Injection System Incorrect Flow Detected Secondary Air Injection System Switching Valve "A" Circuit Secondary Air Injection System Switching Valve "A" Circuit Open Secondary Air Injection System Switching Valve "A" Circuit Shorted Secondary Air Injection System Switching Valve "B" Circuit Secondary Air Injection System Switching Valve "B" Circuit Open Secondary Air Injection System Switching Valve "B" Circuit Shorted Secondary Air Injection System Relay "A" Circuit Secondary Air Injection System Relay "B" Circuit Catalyst System Efficiency Below Threshold (Bank 1) Warm Up Catalyst Efficiency Below Threshold (Bank 1) Main Catalyst Efficiency Below Threshold (Bank 1) Heated Catalyst Efficiency Below Threshold (Bank 1) Heated Catalyst Temperature Below Threshold (Bank 1) Catalyst Temperature Sensor (Bank 1) Catalyst Temperature Sensor Range/Performance (Bank 1) Catalyst Temperature Sensor Low Input (Bank 1) Catalyst Temperature Sensor High Input (Bank 1) Catalyst Heater Control Circuit (Bank 1) Catalyst System Efficiency Below Threshold (Bank 2) Warm Up Catalyst Efficiency Below Threshold (Bank 2) 33 . MB P0432 P0433 P0434 P0435 P0436 P0437 P0438 P0439 P0440 P0441 P0442 P0443 P0444 P0445 P0446 P0447 P0448 P0449 P0450 P0451 P0452 P0453 P0454 P0455 P0456 P0457 P0460 P0461 P0462 P0463 P0464 P0465 P0466 P0467 P0468 P0469 P0470 P0471 P0472 P0473 P0474 P0475 P0476 P0477 P0478 P0479 P0480 P0481 P0482 P0483 P0484 P0485 P0486 P0487 P0488 ME Code Description Main Catalyst Efficiency Below Threshold (Bank 2) Heated Catalyst Efficiency Below Threshold (Bank 2) Heated Catalyst Temperature Below Threshold (Bank 2) Catalyst Temperature Sensor (Bank 2) Catalyst Temperature Sensor Range/Performance (Bank 2) Catalyst Temperature Sensor Low Input (Bank 2) Catalyst Temperature Sensor High Input (Bank 2) Catalyst Heater Control Circuit (Bank 2) Evaporative Emission Control System Evaporative Emission Control System Incorrect Purge Flow Evaporative Emission Control System Leak Detected (small leak) Evaporative Emission Control System Purge Control Valve Circuit Evaporative Emission Control System Purge Control Valve Circuit Open Evaporative Emission Control System Purge Control Valve Circuit Shorted Evaporative Emission Control System Vent Control Circuit Evaporative Emission Control System Vent Control Circuit Open Evaporative Emission Control System Vent Control Circuit Shorted Evaporative Emission Control System Vent Valve/Solenoid Circuit Evaporative Emission Control System Pressure Sensor Evaporative Emission Control System Pressure Sensor Range/Performance Evaporative Emission Control System Pressure Sensor Low Input Evaporative Emission Control System Pressure Sensor High Input Evaporative Emission Control System Pressure Sensor Intermittent Evaporative Emission Control System Leak Detected (gross leak) Evaporative Emission Control System Leak Detected (very small leak) Evaporative Emission Control System Leak Detected (fuel cap loose/off) Fuel Level Sensor Circuit Fuel Level Sensor Circuit Range/Performance Fuel Level Sensor Circuit Low Input Fuel Level Sensor Circuit High Input Fuel Level Sensor Circuit Intermittent EVAP Purge Flow Sensor Circuit EVAP Purge Flow Sensor Circuit Range/Performance EVAP Purge Flow Sensor Circuit Low Input EVAP Purge Flow Sensor Circuit High Input EVAP Purge Flow Sensor Circuit Intermittent Exhaust Pressure Sensor Exhaust Pressure Sensor Range/Performance Exhaust Pressure Sensor Low Exhaust Pressure Sensor High Exhaust Pressure Sensor Intermittent Exhaust Pressure Control Valve Exhaust Pressure Control Valve Range/Performance Exhaust Pressure Control Valve Low Exhaust Pressure Control Valve High Exhaust Pressure Control Valve Intermittent Cooling Fan 1 Control Circuit Cooling Fan 2 Control Circuit Cooling Fan 3 Control Circuit Cooling Fan Rationality Check Cooling Fan Circuit Over Current Cooling Fan Power/Ground Circuit Exhaust Gas Recirculation Sensor "B" Circuit Exhaust Gas Recirculation Throttle Position Control Circuit Exhaust Gas Recirculation Throttle Position Control Range/Performance 34 . and Auxiliary Inputs Vehicle Speed Sensor Vehicle Speed Sensor Range/Performance Vehicle Speed Sensor Circuit Low Input Vehicle Speed Sensor Intermittent/Erratic/High Idle Control System Idle Control System RPM Lower Than Expected Idle Control System RPM Higher Than Expected Idle Control System Circuit Low Idle Control System Circuit High Closed Throttle Position Switch Starter Request Circuit Incorrect Immobilizer Key ("Immobilizer" pending SAE J1930 approval) See P1570 Battery Temperature Sensor Circuit Battery Temperature Sensor Circuit Low Battery Temperature Sensor Circuit High Engine Oil Pressure Sensor/Switch Circuit Engine Oil Pressure Sensor/Switch Range/Performance Engine Oil Pressure Sensor/Switch Low Voltage Engine Oil Pressure Sensor/Switch High Voltage Engine Oil Pressure Too Low A/C Refrigerant Pressure Sensor Circuit A/C Refrigerant Pressure Sensor Circuit Range/Performance A/C Refrigerant Pressure Sensor Circuit Low Input A/C Refrigerant Pressure Sensor Circuit High Input Air Conditioner Refrigerant Charge Loss Intake Air Heater Circuit Intake Air Heater Circuit Low Intake Air Heater Circuit High Exhaust Gas Temperature Sensor Circuit (Bank 1) Exhaust Gas Temperature Sensor Circuit Low (Bank 1) Exhaust Gas Temperature Sensor Circuit High (Bank 1) Exhaust Gas Temperature Sensor Circuit (Bank 2) Exhaust Gas Temperature Sensor Circuit Low (Bank 2) Exhaust Gas Temperature Sensor Circuit High (Bank 2) Power Steering Pressure Sensor Circuit Power Steering Pressure Sensor Circuit Range/Performance Power Steering Pressure Sensor Circuit Low Input Power Steering Pressure Sensor Circuit High Input Power Steering Pressure Sensor Circuit Intermittent System Voltage System Voltage Unstable System Voltage Low System Voltage High Cruise Control Multi-Function Input Signal Cruise Control On Signal Cruise Control Off Signal Cruise Control Resume Signal Cruise Control Set Signal Cruise Control Coast Signal Cruise Control Acceleration Signal Cruise Control/Brake Switch A Circuit Cruise Control/Brake Switch A Circuit Low 35 .MB P0491 P0492 P05XX P0500 P0501 P0502 P0503 P0505 P0506 P0507 P0508 P0509 P0510 P0512 P0513 P0515 P0516 P0517 P0520 P0521 P0522 P0523 P0524 P0530 P0531 P0532 P0533 P0534 P0540 P0541 P0542 P0544 P0545 P0546 P0547 P0548 P0549 P0550 P0551 P0552 P0553 P0554 P0560 P0561 P0562 P0563 P0564 P0565 P0566 P0567 P0568 P0569 P0570 P0571 P0572 ME Code Description Secondary Air Injection System (Bank 1) Secondary Air Injection System (Bank 2) Vehicle Speed. Idle Control. General Internal Control Module Memory Check Sum Error Control Module Programming Error Internal Control Module Keep Alive Memory (KAM) Error Internal Control Module Random Access Memory (RAM) Error Internal Control Module Read Only Memory (ROM) Error ECM/PCM Processor Control Module Performance Control Module VSS Output "A" Control Module VSS Output "B" Control Module Vehicle Options Error Starter Relay Circuit Starter Relay Circuit Low Starter Relay Circuit High Alternative Fuel Control Module KAM Error Alternative Fuel Control Module RAM/ROM Error Generator Control Circuit Generator Lamp "L" Terminal Control Circuit Generator Field "F" Terminal Control Circuit Generator Lamp Control Circuit Fuel Cap Lamp Control Circuit VIN Not Programmed or Mismatch .Vehicle Speed Too High Cruise Control Input Circuit Cruise Control Input Circuit Low Cruise Control Input Circuit High P0578 through P0580 Reserved for Future Cruise Control Codes Computer and Auxiliary Outputs Serial Communication Link .ECM/PCM VIN Not Programmed or Mismatch .TCM Power Steering Control Circuit Power Steering Control Circuit Low Power Steering Control Circuit High Throttle Actuator Control Range/Performance (Bank 1) Throttle Actuator Control Range/Performance (Bank 2) Intake Air Heater Control Circuit A/C Clutch Relay Control Circuit A/C Clutch Relay Control Circuit Low A/C Clutch Relay Control Circuit High Immobilizer Lamp Control Circuit ("Immobilizer" pending SAE J1930 approval) Speed Control Lamp Control Circuit Malfunction Indicator Lamp (MIL) Control Circuit Engine RPM Output Circuit Engine Hot Lamp Output Control Circuit Fuel Level Output Circuit Intake Manifold Tuning Valve Control Circuit (Bank 1) Intake Manifold Tuning Valve Control Circuit Low (Bank 1) Intake Manifold Tuning Valve Control Circuit High (Bank 1) Intake Manifold Tuning Valve Control Circuit (Bank 2) Intake Manifold Tuning Valve Control Circuit Low (Bank 2) Intake Manifold Tuning Valve Control Circuit High (Bank 2) Transmission Transmission Control System (MIL Request) Transmission Control System Range/Performance Transmission Control System Electrical 36 .MB P0573 P0574 P0575 P0576 P0577 P06XX P0600 P0601 P0602 P0603 P0604 P0605 P0606 P0607 P0608 P0609 P0610 P0615 P0616 P0617 P0618 P0619 P0620 P0621 P0622 P0623 P0624 P0630 P0631 P0635 P0636 P0637 P0638 P0639 P0640 P0645 P0646 P0647 P0648 P0649 P0650 P0654 P0655 P0656 P0660 P0661 P0662 P0663 P0664 P0665 P07XX P0700 P0701 P0702 ME Code Description Cruise Control/Brake Switch A Circuit High Cruise Control System . MB P0703 P0704 P0705 P0706 P0707 P0708 P0709 P0710 P0711 P0712 P0713 P0714 P0715 P0716 P0717 P0718 P0719 P0720 P0721 P0722 P0723 P0724 P0725 P0726 P0727 P0728 P0730 P0731 P0732 P0733 P0734 P0735 P0736 P0737 P0739 P0739 P0740 P0741 P0742 P0743 P0744 P0745 P0746 P0747 P0748 P0749 P0750 P0751 P0752 P0753 P0754 P0755 P0756 P0757 P0758 ME Code Description Torque Converter/Brake Switch B Circuit Clutch Switch Input Circuit Malfunction Transmission Range Sensor Circuit Malfunction (PRNDL Input) Transmission Range Sensor Circuit Range/Performance Transmission Range Sensor Circuit Low Input Transmission Range Sensor Circuit High Input Transmission Range Sensor Circuit Intermittent Transmission Fluid Temperature Sensor Circuit Transmission Fluid Temperature Sensor Circuit Range/Performance Transmission Fluid Temperature Sensor Circuit Low Input Transmission Fluid Temperature Sensor Circuit High Input Transmission Fluid Temperature Sensor Circuit Intermittent Input/Turbine Speed Sensor Circuit Input/Turbine Speed Sensor Circuit Range/Performance Input/Turbine Speed Sensor Circuit No Signal Input/Turbine Speed Sensor Circuit Intermittent Torque Converter/Brake Switch B Circuit Low Output Speed Sensor Circuit Output Speed Sensor Circuit Range/Performance Output Speed Sensor Circuit No Signal Output Speed Sensor Circuit Intermittent Torque Converter/Brake Switch B Circuit High Engine Speed Input Circuit Engine Speed Input Circuit Range/Performance Engine Speed Input Circuit No Signal Engine Speed Input Circuit Intermittent Incorrect Gear Ratio Gear 1 Incorrect Ratio Gear 2 Incorrect Ratio Gear 3 Incorrect Ratio Gear 4 Incorrect Ratio Gear 5 Incorrect Ratio Reverse Incorrect Ratio TCM Engine Speed Output Circuit TCM Engine Speed Output Circuit Low TCM Engine Speed Output Circuit High Torque Converter Clutch Circuit Torque Converter Clutch Circuit Performance or Stuck Off Torque Converter Clutch Circuit Stuck On Torque Converter Clutch Circuit Electrical Torque Converter Clutch Circuit Intermittent Pressure Control Solenoid "A" Pressure Control Solenoid "A" Performance or Stuck Off Pressure Control Solenoid "A" Stuck On Pressure Control Solenoid "A" Electrical Pressure Control Solenoid "A" Intermittent Shift Solenoid "A" Shift Solenoid "A" Performance or Stuck Off Shift Solenoid "A" Stuck On Shift Solenoid "A" Electrical Shift Solenoid "A" Intermittent Shift Solenoid "B" Shift Solenoid "B" Performance or Stuck Off Shift Solenoid "B" Stuck On Shift Solenoid "B" Electrical 37 . MB P0759 P0760 P0761 P0762 P0763 P0764 P0765 P0766 P0767 P0768 P0769 P0770 P0771 P0772 P0773 P0774 P0775 P0776 P0777 P0778 P0779 P0780 P0781 P0782 P0783 P0784 P0785 P0786 P0787 P0788 P0789 P0790 P0791 P0792 P0793 P0794 P0795 P0796 P0797 P0798 P0799 P08XX P0801 P0802 P0803 P0804 P0805 P0805 P0806 P0806 P0807 P0808 P0809 P0809 ME Code Description Shift Solenoid "B" Intermittent Shift Solenoid "C" Shift Solenoid "C" Performance or Stuck Off Shift Solenoid "C" Stuck On Shift Solenoid "C" Electrical Shift Solenoid "C" Intermittent Shift Solenoid "D" Shift Solenoid "D" Performance or Stuck Off Shift Solenoid "D" Stuck On Shift Solenoid "D" Electrical Shift Solenoid "D" Intermittent Shift Solenoid "E" Shift Solenoid "E" Performance or Stuck Off Shift Solenoid "E" Stuck On Shift Solenoid "E" Electrical Shift Solenoid "E" Intermittent Pressure Control Solenoid "B" Pressure Control Solenoid "B" Performance or Stuck off Pressure Control Solenoid "B" Stuck On Pressure Control Solenoid "B" Electrical Pressure Control Solenoid "B" Intermittent Shift 1-2 Shift 2-3 Shift 3-4 Shift 4-5 Shift Shift/Timing Solenoid Shift/Timing Solenoid Range/Performance Shift/Timing Solenoid Low Shift/Timing Solenoid High Shift/Timing Solenoid Intermittent Normal/Performance Switch Circuit Intermediate Shaft Speed Sensor Circuit Intermediate Shaft Speed Sensor Circuit Range/Performance Intermediate Shaft Speed Sensor Circuit No Signal Intermediate Shaft Speed Sensor Circuit Intermittent Pressure Control Solenoid "C" Pressure Control Solenoid "C" Performance or Stuck off Pressure Control Solenoid "C" Stuck On Pressure Control Solenoid "C" Electrical Pressure Control Solenoid "C" Intermittent Transmission Reverse Inhibit Control Circuit/Electric-Suction type fan (engine AAC) connector M4/3. Resonance Intake Manifold Switchover Valve Circuit 1-4 Upshift (Skip Shift) Solenoid Control Circuit 1-4 Upshift (Skip Shift) Lamp Control Circuit Clutch Position Sensor Circuit Air-flap recirculation signal output stage incorrect Clutch Position Sensor Circuit Range/Performance A/C compressor output stage. magnetic combination Clutch Position Sensor Circuit Low Clutch Position Sensor Circuit High Clutch Position Sensor Circuit Intermittent/Angular deviation between cam and crankshaft Variation in angle of camshaft to crankshaft incorrect 38 . MB P0810 P0811 P0811 P0812 P0813 P0814 P0815 P0816 P0816 P0817 P0818 P0820 P0821 P0822 P0823 P0824 P0825 P0830 P0831 P0832 P0833 P0834 P0835 P0836 P0837 P0838 P0839 P0840 P0841 P0842 P0843 P0844 P0845 P0846 P0847 P0848 P0849 P09XX ME Code Description Clutch Position Control Error Excessive Clutch Slippage CAN problem . Oil pressure sensor open circuit or short circuit. temperature incorrect. engine oil level incorrect. P1XXX P10XX P1031 P11XX P1146 P1147 P1148 P1149 P1162 P1163 P1176 P1177 P1178 P1179 39 .Bank 2 (left) MAP circuit malfunction . malfunction.Bank 2 (left) IAT circuit malfunction .Bank 2 (left) ECT circuit malfunction .Bank 2 (left) Oil level switch. Oil sensor. Oil sensor.Bank 2 (left) Throttle position sensor circuit failure . engine oil quality incorrect. Oil sensor. malfunction Starter Disable Circuit Driveline Disconnect Switch Input Circuit Gear Lever X-Y Position Sensor Circuit Gear Lever X Position Circuit Gear Lever Y Position Circuit Gear Lever X Position Circuit Intermittent Gear Lever Y Position Circuit Intermittent Gear Lever Push-Pull Switch (Shift Anticipate) Clutch Pedal Switch "A" Circuit Clutch Pedal Switch "A" Circuit Low Clutch Pedal Switch "A" Circuit High Clutch Pedal Switch "B" Circuit Clutch Pedal Switch "B" Circuit Low Clutch Pedal Switch "B" Circuit High Four Wheel Drive (4WD) Switch Circuit Four Wheel Drive (4WD) Switch Circuit Range/Performance Four Wheel Drive (4WD) Switch Circuit Low Four Wheel Drive (4WD) Switch Circuit High Transmission Fluid Pressure Sensor/Switch "A" Circuit Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance Transmission Fluid Pressure Sensor/Switch "A" Circuit Low Transmission Fluid Pressure Sensor/Switch "A" Circuit High Transmission Fluid Pressure Sensor/Switch "A" Circuit Intermittent Transmission Fluid Pressure Sensor/Switch "B" Circuit Transmission Fluid Pressure Sensor/Switch "B" Circuit Range/Performance Transmission Fluid Pressure Sensor/Switch "B" Circuit Low Transmission Fluid Pressure Sensor/Switch "B" Circuit High Transmission Fluid Pressure Sensor/Switch "B" Circuit Intermittent Transmission None defined at this time.No reception from EZS (Ignition Lock) Reverse Input Circuit Reverse Output Circuit Transmission Range Display Circuit Upshift Switch Circuit Downshift Switch Circuit Oil pressure sensor open circuit or short circuit. Mercedes Benz Manufacturer Specific Codes Fuel and Air Metering and Auxiliary Emission Controls O2 sensor (G3/3 and G3/4) connections reversed Fuel and Air Metering Mass air flow circuit malfunction . Fuel and Air Metering Resonance intake manifold switchover valve circuit Throttle Valve Actuator . No data reception from EIS CAN fault. mismatched ECMs. Oil sensor Fuel safety shut-off recognized. fuse or circuit Left AIR system malfunction EVAP system purge control valve circuit malfunction . Knock sensor circuit malfunction .MB P1180 P1181 P1182 P1183 P1184 P1185 P1186 P12XX P1225 P1233 P1235 P1236 P13XX P1300 P1384 P1385 P1386 P1397 P14XX P1400 P1420 P1443 P1453 P1463 P1490 P1491 P1492 P15XX P1519 P1522 P1525 P1533 P1542 P1570 P1580 P1581 P1584 P1587 P1588 P1589 P16XX P1603 P1605 P1632 P1641 P1642 P1643 P1644 P17XX P1747 ME Code Description Oil sensor. CAN bus signal from the RCL controller to the Left engine controller faulty. voltage too low. Left adjustable camshaft timing solenoid mechanically faulty. ABS speed sensor error vs. CAN signal failure from ETC or instrument cluster faulty.Left front. Transmission control system version cannot be checked. Transmission CAN signal from ETC. Computer and Auxiliary Outputs CAN bus problem.Bank 2 (left) Air-pump relay. magnetic combination incorrect Ignition System or Misfire CKP sensor circuit failure . Right of left CTP signal to the engine control module faulty or CAN bus communication by the left engine control has been interrupted. 40 .Mechanically jammed Air-flap recirculated signal output stage faulty A/C compressor output stage. Transmission control module. Engine control module incorrect coding (MT coded has AT) Engine control module incorrect coding or CAN signal from Transmission system faulty. signal interrupted. relay module.Left rear. Right or sole adjustable camshaft timing solenoid electrically faulty Left adjustable camshaft timing solenoid electrically faulty Pedal position sensor signal CAN bus signal from DAS to the ME-SFI control unit .DAS locked. Knock sensor control from the left engine controller at limit. VSS (RPM) Left engine control module faulty. engine oil temperature too high Engine electric-fan /Air conditioning malfunction Starting system relay in fuse and relay module box Right cylinders bank cut-off output stage malfunction Left cylinders bank cut-off output stage malfunction Water in engine oil.Bank 2 (left) Knock sensor circuit malfunction .Bank 2 (left) A/C system refrigerant pressure too high Exhaust-flap faulty Vehicle Speed.Bank 2 (left) Auxiliary Emission Controls EGR (exhaust gas recirculation) output stage faulty Air-pump switchover valve circuit EVAP system malfunction . Knock sensor control from electronic control module .at limit CMP sensor circuit range/performance . Right or sole EA/CC/ISC Actuator circuit faulty Left EA/CC/ISC Actuator circuit faulty Stop lamp switch/Brake switch signal Left engine control module voltage supply faulty. and Auxiliary Inputs Right or sole adjustable camshaft timing solenoid mechanically faulty. Idle Control. Bank 1 6 Idle speed control faulty 7 Ignition system faulty . fuel metering or ignition problem.Air.Bank 1 .092 119. circuit open or circuit short .Bank 1 9 Intake air temperature sensor.Bank 1 34 Oxygen sensor faulty .Bank 1 25 Knock sensors or ignition control module faulty .034 124.Bank 1 19 Injector circuit open or circuit short or emission control system adaptation at limit .042 140. fuel metering or ignition problem.043 140.Bank 2 43 Tn-signal (rpm signal ) at control module faulty .Bank 1 26 Upshift delay switchover valve.Bank 1 10 Voltage at mass air sensor too high/low .Bank 2 .Bank 2 Sensor 1 35 Lambda control out of range .Bank 2 or Fuel safety shut-off electronic accelerator or cruise control active (HFM only) 46 Intake manifold pressure at startup too low or too high .057 140.Bank 1 20 Vehicle speed signal missing 21 Purge switchover valve. circuit open or circuit short .076 Model Years 1992-1993 1994-95 1992-1994 1992-1994 1992-1995 FAULT CODE TABLE DTC Readout Possible Cause of Failure 1 No fault found 2 Oxygen sensor faulty .Bank 2 40 Engine coolant temperature sensor.032 140. 36 Air injection faulty .Bank 1 Sensor 1 3 Lambda control out of range .Air.Bank 2 38 Not used 39 Ignition system faulty . circuit open or circuit short .Bank 1 23 Intake manifold pressure with engine running.Bank 2 45 Camshaft position sensor signal ignition control module faulty .028 124.Bank 1 12 Oxygen sensor heater. circuit open or circuit short .Bank 2 44 Oxygen sensor heater.Bank 2 41 Intake air temperature sensor. too low/high .Bank 1 22 Camshaft position sensor signal faulty . 4 Air injection faulty . and sensor circuit 2 . circuit open or circuit short 27 Engine coolant temperature sensor deviation between circuit 1.052 124.Bank 1 24 Starter ring gear segments faulty or crankshaft position sensor faulty .Bank 1 28 Engine coolant temperature sensor (engine coolant temperature change monitor) .051 140.Bank 2 or Resonance intake manifold switchover valve (HFM only) 41 .Bank 2 42 Voltage at mass air sensor too high/low .Bank 1 15 Wide open throttle (WOT) position information faulty 16 Closed throttle position (CTP) information faulty 17 Data exchange (CAN) fault between engine control module. Bank 1 18 Adjustable camshaft timing solenoid circuit open or circuit short . circuit open or circuit short .Bank 1 14 Intake manifold pressure at startup too low or too high .067 140. ignition control module or electronic accelerator/cruise control module. circuit open or circuit short .Diagnostic Module (DM) .Bank 1 8 Engine coolant temperature sensor.Analog Models 124.Bank 1 13 Camshaft position sensor signal ignition control module faulty .036 124.Bank 2 37 Exhaust gas recirculation (EGR) of control module faulty .Bank 1 5 Exhaust gas recirculation (EGR) of control module faulty .Bank 1 11 Tn-signal (rpm signal ) at control module faulty . circuit open or circuit short .032 124. Bank 2 Not used Purge switchover valve. ignition control module or electronic accelerator/cruise control module.Bank 2 42 . circuit open or circuit short .Bank 2 Camshaft position sensor signal faulty . too low/high .Bank 2 Starter ring gear segments faulty or crankshaft position sensor faulty . .Bank 2 Engine coolant temperature sensor (engine coolant temperature change monitor) .Bank 2 or Engine control module (HFM only) Injector circuit open or circuit short or emission control system adaptation at limit .Bank 2 Intake manifold pressure with engine running.Bank 2 Knock sensors or ignition control module faulty .Bank 2 or Voltage supply at engine control module <8V (HFM only) Adjustable camshaft timing solenoid circuit open or circuit short .Bnak 2 Not used Engine coolant temperature sensor deviation between circuit 1. and sensor circuit 2 .DTC Readout 47-48 49 50 51 52 53 54 55 56 57 58 59 60 Possible Cause of Failure Not used Data exchange (CAN) fault between engine control module. Digital LH SEE ME-SFI INJECTION FOR ALL DIAGNOSTIC CODES FROM 8/96 PRODUCTION AND LATER FOR ALL MODELS. inoperative. Open or short circuit (right bank in 120) 13 Camshaft position sensor (CMP) signal. too high/low. fault from Fuel/Ignition control system (right bank in 120) 15 Wide open throttle (WOT) signal incorrect/implausible. open or short circuit (right bank in 120) 19 Fuel injector circuit. No signal (right bank in 120) 3 Fuel adaptation (lambda control). (right bank in 120) 34 Oxygen sensor. 16 Closed throttle position (CTP) sensor signal incorrect/implausible. Engine control module (left bank in 120) 38 Not used 39 Ignition system defective. fault from Fuel/Ignition control system (right bank in 120) 8 Coolant temperature sensor signal. FAULT CODE TABLE DTC Readout Possible Cause of Failure 0 No fault found 2 Oxygen sensor. 49 CAN communication faulty in between control units (left bank in 120). open or short circuit or self adaptation at limit. fault from Fuel control system (right bank in 120) 5 EGR exhaust gas recirculation incorrect. Engine control module (left bank in 120) 36 Air injection defective. 43 . Open or short circuit (right bank in 120) 10 Air mass sensor voltage signal too high /low. inoperative. Open or short circuit (left bank in 120) 41 Intake air temperature sensor signal. fault from Fuel/Ignition control system (left bank in 120) 40 Coolant temperature sensor signal. open or short circuit (right bank in 120) 22 Camshaft position sensor (CMP) signal defective (right bank in 120) 23 Intake manifold pressure sensor signal incorrect. 17 CAN communication faulty in between control units (right bank in 120). fault from Fuel/Ignition control system (left bank in 120) 46 Intake manifold pressure value at start too high/low. (right bank in 120) 24 Crankshaft position sensor (CKP) signal incorrect or starter ring gear segment damaged. (right bank in 120) 28 Engine coolant sensor/Operating temperature error.Diagnostic Module (DM) . (right bank in 120) 20 Speed signal missing 21 Fuel purge control valve. fault from Fuel control system (left bank in 120) 37 EGR exhaust gas recirculation incorrect. 25 Knock sensors circuit or Ignition control module defective (right bank in 120) 26 Transmission Upshift delay switchover valve (Y3/3) without function (Logic Chain) 27 Engine coolant temperature (ECT) sensors circuit 1 and 2 have difference values. fault from Fuel/Ignition control system (left bank in 120) 47-48 Not used. fault. (right bank in 120) 11 Engine speed signal TN (RPM) or Engine control module (right bank in 120) defective 12 Oxygen sensor heater circuit. Open or short circuit (left bank in 120) 42 Air mass sensor voltage signal too high /low. fault. 18 Camshaft timing adjust solenoid. Open or short circuit (right bank in 120) 9 Intake air temperature sensor signal. Engines 104 (LH-SFI) 104 (124 only) 119 120 Model Years 1992 1992-95 1991-96 Stored Codes turn on the Check Engine Light (MIL) Registered or Pending Codes will keep the light on. No signal (left bank in 120) 35 Fuel adaptation (lambda control). Engine control module (right bank in 120) 4 Air injection defective. fault from Fuel/Ignition control system (right bank in 120) 14 Intake manifold pressure value at start too high/low. (left bank in 120) 43 Engine speed signal TN (RPM) or Engine control module (left bank in 120) defective 44 Oxygen sensor heater circuit. Open or short circuit (left bank in 120) 45 Camshaft position sensor (CMP) signal. fault from EA/CC/ISC 7 Ignition system defective. Engine control module (right bank in 120) 6 Idle speed control incorrect. open or short circuit (left bank in 120) Camshaft position sensor (CMP) signal defective (left bank in 120) Intake manifold pressure sensor signal incorrect. too high/low. open or short circuit or self adaptation at limit. Engine coolant temperature (ECT) sensors circuit 1 and 2 have difference values. (left bank in 120) Engine coolant sensor/Operating temperature error. Fuel purge control valve.DTC Readout 50 51 52 53 54 55 56 57 58 59 60 63 65 Possible Cause of Failure Camshaft timing adjust solenoid. 44 . (left bank in 120) Crankshaft position sensor (CKP) signal incorrect or starter ring gear segment damaged. (left bank in 120) Anomalous Code (Battery Jump most likely Caused) EVAP Purge Valve Be sure to reset adaptation once the codes have been cleared from the Diagnostic Module (see page 8). open or short circuit (left bank in 120) Fuel injector circuit. (left bank in 120) Not used. Knock sensors circuit or Ignition control module defective (left bank in 120) Not used. Engines 104. Registered or Pending Codes will keep the light on. 140: AIR pump switchover valve (Y32) and electromagnetic AIR pump clutch (Y33) Oxygen sensor (G3/1) heater circuit malfunction Oxygen sensor (G3/1) circuit short circuit Oxygen sensor (G3/1) operating condition Secondary air injection system incorrect flow detected Electrical activation of the EGR switchover valve (Y27) Exhaust gas recirculation flow malfunction Idle control system RPM higher than expected Idle control system malfunction Cylinder X misfire detected Electrical activation of adjustable camshaft timing solenoid (Y49) Random misfire detected Cylinder X misfire detected Random misfire detected Cylinder X misfire detected Random misfire detected Catalyst system efficiency below threshold Adjustable camshaft timing solenoid (Y49) without function (Logic chain) Injector circuit malfunction Short term fuel trim (self-adaptation of fuel mixture) Fuel trim malfunction Evaporative emission control system (EVAP) purge control valve circuit malfunction (Purge switchover valve [Y58/1 ]) Electrical activation of upshift delay switchover valve (Y3/3) Transmission upshift delay switchover valve (Y3/3) without function (Logic chain) Cylinder X misfire detected Random misfire detected Cylinder X misfire detected Random misfire detected Cylinder X misfire detected Random misfire detected Camshaft position sensor monitoring signal from engine control module (N3/4) Engine speed signal TNA to diagnostic module (OBD II) not received Engine 104 only: Electrical activation of resonance intake manifold switchover valve (Y22/6) 45 . 111 (HFM) Model Years 1994-96 Stored Codes turn on the Check Engine Light (MIL). Fault Code Table OB15 MB/SAE 002 P0132 003 P0134 004 P0131 005 P1131 006 P0133 007 P0135 008 P1132 009 P0138 010 P0412 011 012 013 015 016 017 018 019 020 021 021 022 023 024 025 026 028 029 030 031 032 032 034 035 036 037 038 039 040 042 043 044 P0141 P1137 P1138 P0411 P1400 P0400 P0507 P0505 P030X P1342 P0300 P030X P0300 P030X P0300 P0420 P1341 P0200 P1170 P0170 P0443 P1701 P1700 P030X P0300 P030X P0300 P030X P0300 P1340 P1335 P1711 ME Code Description Oxygen sensor (G3/2) circuit high voltage Oxygen sensor (G3/2) circuit no activity detected Oxygen sensor (G3/2) circuit low voltage Oxygen sensor (G3/2) circuit short circuit Oxygen sensor (G3/2) circuit slow response Oxygen sensor (G3/2) heater circuit malfunction Oxygen sensor (G3/2) circuit "rich" stop Oxygen sensor (G3/1) circuit high voltage Secondary air injection (AIR) system switching valve/circuit malfunction Model 202: AIR pump switchover valve (Y32) and AIR relay module (K17) Models 129.Diagnostic Module (DM) .Digital HFM SEE ME-SFI INJECTION FOR ALL DIAGNOSTIC CODES FROM 8/96 PRODUCTION AND LATER FOR ALL MODELS. OB15 045 046 047 048 049 050 051 051 052 053 054 055 056 058 059 060 061 062 063 064 065 066 MB/SAE P0116 P0125 P0111 P0101 P0335 P1336 P0501 P1337 P1740 P1741 P0510 P0600 P0500 P0341 P0105 P0327 P0326 P0325 P1750 P1443 P0441 P1444 ME Code Description Engine coolant temperature circuit range/performance problem (Engine coolant temperature sensor [B11/3]) Insufficient coolant temperature for closed loop fuel control Intake air temperature circuit range/performance problem (Intake air temperature sensor [B17]) Mass or volume air flow circuit range/performance problem (Hot film mass air flow sensor [B2/5]) Crankshaft position sensor circuit malfunction Crankshaft sensor signal: Magnet coding on segment Vehicle speed sensor range/performance Engine speed signal TNA transmitted from engine control module Full load information: Load implausible Full load information: Throttle valve position implausible Closed throttle position switch malfunction Serial communication link malfunction (CAN) Vehicle speed sensor malfunction Camshaft position sensor circuit range/performance (Camshaft position sensor [L5/1]) Manifold absolute pressure/barometric pressure circuit malfunction Knock sensor 1 circuit low input Knock sensor 1 circuit range/performance Knock sensor 1 circuit malfunction Battery voltage too low Electrical activation of purge flow switchover valve (Y27/6) EVAP incorrect purge flow Pressure switchover without function (Logic chain) Be sure to reset adaptation once the codes have been cleared from the Diagnostic Module (see page 8). 46 . 042 140.032 140.034 124. ABS/ASR control module or ASD control module interrupted Not used Voltage supply for kickdown valve interrupted Voltage supply for electromagnetic a/c compressor clutch interrupted Voltage supply for module box blower motor interrupted 47 .036 129.076 FAULT CODE TABLE DTC Readout 1 2. 14 15 16 17 Model Years 1992-93 1992-95 1992-95 Possible Cause of Failure No fault found Not used Maximum permissible temperature in module box exceeded Electromagnetic a/c compressor clutch blocked Poly v-belt slipping Voltage supply for LH-SFI control module interrupted Voltage supply for LH-SFI control module interrupted Voltage supply for LH-SFI control module interrupted Voltage supply for fuel injectors interrupted Voltage supply for accessory equipment control module interrupted Voltage supply for ABS control module.057 140.043 140.051 140.067 140. 4 5 6 7 8 9 10 11 12 13. 3.Base Module (BM) Models 124. Ground. Ignition control module DTC memory faulty.057 140.034 129. Idle speed contact does not open.076 140.061 129.067 140.070 140.043 140.042 Model Years 1990-1995 1992-1995 1990-1995 1992-1995 1992-1993 1992-1995 124.051 124.032 140. (Recognized with engine running) Not used Ignition control module data exchange fault LH-SFI control module data exchange fault Electronic accelerator control module/idle speed control data exchange fault Ignition misfire detected at cylinder 1 (104) / cylinder 1 (119) Ignition misfire detected at cylinder 5 (104) / cylinder 5 (119) Ignition misfire detected at cylinder 3 (104) / cylinder 4 (119) Ignition misfire detected at cylinder 6 (104) / cylinder 8 (119) Ignition misfire detected at cylinder 2 (104) / cylinder 6 (119) Ignition misfire detected at cylinder 4 (104) / cylinder 3 (119) Ignition misfire detected at cylinder 7 (119) Ignition misfire detected at cylinder 2 (119) 48 .051 140. Ignition coil 1 output from EAL/AKR ignition control module faulty Ignition coil 2 output from EAL/AKR ignition control module faulty Crankshaft position sensor faulty Magnets for crankshaft position sensor (CKP) not recognized. Preference resistor faulty Tn-signal is outside the tolerance range Full load contact does not open.076 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 -25 26 27 28 34 35 36 37 38 39 40 41 Possible Cause of Failure No fault found Maximum retard setting on at least one cylinder has been reached Engine coolant temperature sensor faulty Load sensor in EAL/AKR control module faulty Knock sensors 1 and/or 2 faulty Camshaft position sensor faulty Knock output switch in EAL/AKR ignition control module faulty Transmission overload switch does not close Transmission overload switch does not open Data exchange from EAL/AKR engine control module to CFI control module faulty.036 129.Distributor Ignition (DI) Model 124.066 129. Load sensor in control module faulty. coding from left EZL/AKR ignition control module not present. Cruise Control/Idle Speed Control (CC/ISC) w/o ASR Models 124 129 140 202 Model Years 1992-97 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 Possible Cause of Failure No fault found Cruise control/idle speed control module Cruise control/idle speed control actuator Cruise control switch Stop lamp switch Starter lock-out/backup lamp switch Data bus (CAN) Left front axle vehicle speed sensor Left rear axle vehicle speed sensor or Hall-effect speed sensor Rear axle vehicle speed sensor from ABS control module Rear axle vehicle speed sensor from ETS/SPS control module Incorrect CC/ISC control module installed ETS signal Engine speed (RPM) signal (TNA) Fuel safety shut-off to LH-SFI control module Cruise control/idle speed control voltage supply 49 . Left front axle vehicle speed sensor from ABS/ASR control module Left rear axle vehicle speed sensor from ABS/ASR control module or in 124 chassis Hall-effect speed sensor.Electronic Accelerator / Cruise Control / Idle Speed Control (EA/CC/ISC) w/ASR Models 124 129 140 202 Model Year 1992-96 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Possible Cause of Failure No fault found EA/CC/ISC control module (N4/1) or Safety contact switch (M16/1s1) or Stop lamp switch or Cruise control switch or Actual value potentiometer or Starter lock-out/back-up lamp switch or Engine speed signal or Vehicle speed signal or Closed throttle position switch or Safety relay in EA/CC/ISC control module Right EA/CC/ISC actuator (left cylinder bank) (M16/1) Cruise control switch (S40) Stop lamp switch (S9/1) Starter lock-out/backup lamp switch CAN data bus signal from EA/CC/ISC. Closed throttle position contact switch CAN data exchange with ABS/ASR control module illogical 50 . Engine speed signal (TN) from base module (LH-SFI) or engine control module (HFM-SFI) Closed throttle recognition signal to engine control module (HFM-SFI or Left LH-SFI) Fuel safety shut-off to engine control module (HFM-SFI or left or right LH-SFI) EA/CC/ISC control module voltage supply Left EA/CC/ISC actuator (right cylinder bank) or actual value potentiometer (M16/4r1 or M16/4r2) or actuator motor (M16/4m1)or magnetic clutch (M16/4k1). HFM-SFI or LH-SFI (right or left) control module faulty. ABS/ASR. 140 Model Years 1990-1996 Fault Code Table DTC Readout 1 2 3 4 5 6 7 8 9 10 Possible Cause of Failure No fault found Engine control module (N3/4) does not match TCM Transmission overload protection switch 4th/5th gear defective CAN data line from EA/CC/ISC control module (N4/1) signal distorted CAN data line from DI control module (N1/3) or HFM control module signal distorted CAN data line signal distorted. 5-speed automatic transmission control module Control valve Control valve short circuit Electronic Transmission Control 5-speed (722.Electronic Automatic Transmission Control (ETC) with CFI (722. open circuit or TCM (N15/1) defective Automatic Transmission Control Module (TCM) (N15/1) defective Control valve block (Y3/1y2) Control valve block (Y3/1y2).5) Models 129 Model Years 1990-1993 See 4matic and digital transmission control diagnosis beginning on page ?. Short or open circuit Control valve block (Y3/1y2).5) Models 129. FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 Possible Cause of Failure No fault found Not used Engine load signal interrupted Throttle valve switch (potentiometer) interrupted Engine speed (RPM) signal interrupted Vehicle speed signal interrupted Output fault in 5-speed automatic transmission control module or fault in control valve. short circuit 51 . Automatic-Engaged Four-wheel Drive (4MATIC) Models 124.230 124.290 Model Years 1990-1993 NOTE: Engine must be at idle to read and clear 4MATIC fault codes. FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 Possible Cause of Failure No fault found 4MATIC control module Brake light switch Left front axle vehicle speed sensor Right front axle vehicle speed sensor Rear speed sensor signal All 3 vehicle speed sensors Over volts protection relay, front axle train valve Over volts protection relay, central differential lock valve Over volts protection relay, stop lamp switch, Rear axle differential lock valve Steering angle sensor signal The following faults cannot be detected by the 4MATIC controller: < 4MATIC function indicator lamp defective. < 4MATIC MIL defective. < Oil Pressure Switch defective. 52 Electronic Transmission Control (ETC) for ME-SFI 5-speed (722.6) Models 129 140 163 170 202 208 210 Engines 104 111 112 113 119 120 606 Model Years 1995-99 Fault Code Table DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 16 17 18 19 20 20 21 22 23 24 24 25 25 26 26 27 27 28 28 29 30 30 31 31 32 32 33 33 34 35 36 Possible cause of Failure No fault stored 1-2/4-5 shift solenoid valve circuit fault (Y3/6y3) 2-3 shift solenoid valve circuit fault (Y3/6y5) 3-4 shift solenoid valve circuit fault (Y3/6y4) PWM solenoid valve (torque converter lock-up) circuit fault (Y3/6y6) Pressure regulating solenoid valve circuit fault (Y3/6y1) Shift pressure regulating solenoid valve circuit fault (Y3/6y2) R/P lock solenoid, function defective (Y66/1) Cable to starter lock-out relay module, function defective (K38/3) Voltage supply to solenoid valves Voltage supply to RPM sensors RPM sensor 2 (Y3/6n2), signal defective RPM sensor 3 (Y3/6n3), signal defective Transmission output sensor (B49) defective Transmission selector lever coding invalid Selector lever signal incorrect (This code can be ignored.) or between ranges Transmission fluid temperature sensor (Y3/6b1) signal defective Starter lock-out contact (Y3/6s1) not functioning Transmission oil temperature sensor defective/Starter lock-out contact not functioning Supply voltage (terminal 87) too low or overvoltage. CAN data: Right rear wheel speed (VSS) from traction system incorrect/implausible CAN data: Left rear wheel speed (VSS) from traction system incorrect/implausible CAN data: Pedal value from ME-SFI controller incorrect/implausible CAN data: Right front wheel speed (VSS) from traction system incorrect/implausible CAN data: Engine RPM from ME-SFI controller system incorrect/implausible CAN data: Left front wheel speed (VSS) from traction system incorrect/implausible CAN data: Right engine torque from ME-SFI controller system incorrect/implausible CAN data: Pedal value from ME-SFI controller incorrect/implausible CAN data: Altitude adjustment factor from the ME-SFI controller incorrect/implausible (This fault code can be ignored if no relative faults stored in the ME-SFI CAN data: Adjusted engine torque incorrect/implausible CAN data: Left engine torque from ME-SFI controller system incorrect/implausible CAN data: Engine RPM from ME-SFI controller system incorrect/implausible CAN data: Right engine torque from ME-SFI controller system incorrect/implausible CAN data: Communication with traction system faulty CAN data: Altitude adjustment factor from the ME-SFI controller incorrect/implausible (This fault code can be ignored if no relative faults stored in the ME-SFI CAN data: Communication to the ME-SFI controller is faulty CAN data: Maximum induced engine torque from ME-SFI controller incorrect/implausible CAN data: Communication to/from the ME-SFI controller is faulty CAN data: Left engine torque from ME-SFI controller system incorrect/implausible CAN data: Communication to/from the ME-SFI controller is faulty CAN data: Throttle valve actuator actual value from ME-SFI incorrect/implausible CAN data: Communication to/from the ME-SFI controller is faulty CAN data: Communication to/from the ME-SFI controller is faulty CAN data: Communication to/from the ME-SFI controller is faulty or the engine temperature is implausible. 53 DTC Readout 37 38 39 40 50 51 52 52 53 53 54 55 56-65 98-155 Possible cause of Failure CAN data: All communications are faulty CAN data: Communication to/from the Traction system controller is faulty CAN data: Communication to/from the ME-SFI controller is faulty CAN data: Communication to/from the Instrument Cluster is faulty Speed sensor n3 or clutch K1 are faulty Gear implausible or transmission slips. Command valve (6, 14, or 25) sticking under pressure. Unauthorized locking of Torque Converter lock-up clutch. Replace Torque Converter. Torque converter lock-up clutch, not functioning. Replace Torque Converter. Torque converter lock-up clutch, input (RPM) too high. Replace Torque Converter. No feedback signal from transmission overload protection. Gear comparison incorrect or target gear selection not achieved. Transmission control unit (N15/3) faulty . These codes are intermittent. To establish their meaning, subtract 96 from the code number given and look in the table above for the definition of the intermittent fault. Adaptive Damping System (ADS) Models 129.061 129.066 129.067 129.076 140.032 140.042 140.051 140.057 140.070 140.076 140.134 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 12 Model Years 1991-1995 1991-1994 13 14 15 17 18 19 20 21 22 Possible Cause of Faults No fault found Adaptive damping system control module Body acceleration sensor Wheel acceleration sensor Steering angle sensor Front axle solenoid valves 1 Front axle solenoid valves 2 Rear axle solenoid valves 1 Rear axle solenoid valves 2 Right front axle vehicle speed signal or ABS Signal Oil level switch (ADS) Steering angle sensor not activated/initialized Comfort or sport switch (ADS) short circuit Vehicle load sensor Adaptive damping system warning lamp Volts supply too low Steering angle sensor Volts supply too high Comfort or sport switch (ADS) 54 Left front axle Solenoid valve.028 Model Years 1991-1995 1991 1991-1995 1991-1995 1991-1993 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 Possible cause of faults No fault found Adaptive damping system control module Stop lamp switch Left front axle vehicle speed sensor signal Right front axle vehicle speed sensor signal Rear speed sensor signal No speed signal from any sensor.Automatic Locking Differential (ASD) Models 124. missing ground Adaptive damping system valve or stop lamp switch Anti-lock Brake System (ABS) Models 140. open circuit Rear axle speed sensor signal Solenoid valve. dirty or damaged toothed rotor Low voltage at solenoid valves relay Left front vehicle speed sensors signal Illogical Right front vehicle speed sensors signal Illogical Rear axle vehicle speed sensors signal Illogical 55 .134 201. Rear axle Return/pressure pump motor or return/pressure pump relay Solenoid valves relay Master cylinder switchover valve Stop lamp switch ABS Lateral acceleration sensor ABS control module Vehicle speed sensors incorrect. open circuit Right front axle vehicle speed sensor.135 129. Right front axle Solenoid valve.061 140.043 140.134 126.042 140.032 140.128 126.134 202 210 Model Years 1992-1993 1994-1995 1995 FAULT CODE TABLE DTC Readout 1 2 3 4 6 7 8 10 11 12 13 14 15 16 17 25 26 27 Possible Cause of Faults No faults found Left front axle vehicle speed sensor. 04/05 ABS/ASR control module Vehicle speed sensors incorrect. open circuit Right rear axle vehicle speed sensor signal Left front axle solenoid valve Right front axle solenoid valve Left rear axle solenoid valve or rear axle solenoid valve Right rear axle solenoid valve Return/pressure pump motor or return/pressure pump relay Solenoid valves relay Master cylinder switchover valve . Illogical Rear axle vehicle speed sensors signal.036 129 140 Model Years 1992-1995 1994-95 1994-95 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 20 21 22 23 24 25 26 27 29 30 31 32 33 Possible Cause of Faults No fault found Left front axle vehicle speed sensor. LH-SFI CAN data line.034 124. Illogical .Models140. open circuit Right front axle vehicle speed sensor. short or open circuit 56 . Illogical Lateral acceleration sensor signal.Models 140.Models 140. Illogical Right front vehicle speed sensors signal.04/05 CAN data line to electronic accelerator/cruise control/idle speed control module CAN data line to LH-SFI control module left LH-SFI control module Right LH-SFI control module CAN data line to left ignition control module right ignition control module Ignition control module.04/05 Brake lamp switch (ASD/ASR) Lateral acceleration sensor .Anti-lock Brake System (ABS & ABS w/ASR) Models 124. dirty or damaged toothed rotor Low volts at solenoid valves relay Switchover or solenoid valve Pressure switch charge Pressure switch charge Pressure switch hydraulic system ASR charging pump Left front vehicle speed sensors signal. open circuit Left rear axle vehicle speed sensor signal or Rear axle speed sensor. volts supply ASR only CAN date bus to EA/CC/ISC control module. illogical Right front axle VSS valves illogical Left rear axle VSS valve illogical Right rear axle VSS valve illogical VSS signal illogical ASR/ETS hydraulic unit. open circuit Left front axle VSS valves. right rear axle solenoid valve (release) ASR/ETS hydraulic unit. open circuit Right front axle VSS sensor.04/05/07 ASR lateral acceleration sensor. Left front axle solenoid valves(hold) ASR/ETS hydraulic unit. right front axle solenoid valve (release) ASR/ETS hydraulic unit.04/05/07 ASR lateral acceleration sensor. right front axle solenoid valve (release) ASR/ETS hydraulic unit.04/05/07 Master brake cylinder switchover valve Model 129.076. left rear axle solenoid valve(hold) ASR/ETS hydraulic unit. open circuit Left rear axle VSS sensor.140. right rear axle solenoid valve(hold) ASR/ETS hydraulic unit.140.076. ETS) Models 129 140 202 210 Model Years 1995 1995-96 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Possible Cause of Faults No fault found ASR/SPS or ETS/SPS control module Left front axle VSS sensor.140. open circuit Model 129. interrupted ASR only CAN communication with LH-SFI control module Left LH-SFI control module right LH-SFI control module faulty CAN communication with engine control module faulty ASR only CAN communication with DI or left and right DI control module. open circuit Right rear axle VSS sensor. solenoid valves relay ASR/ETS hydraulic unit. switchover/solenoid valve ASR/ETS hydraulic unit.Electronic Traction Systems (ASR. inlet solenoid valve ASR only: ASR system pressure too low ASR/ETS hydraulic unit. Left front axle solenoid valve(hold) ASR/ETS hydraulic unit. faulty ASR only CAN communication faulty in general ETS only Brakes overheated Model 129. circuit 87 ETS only Circuit 30. high-pressure/return pump relay Stop lamp switch Battery voltage too low. left rear axle solenoid valve (release) ASR/ETS hydraulic unit. illogical ETS only EST/SPS control module not identify the software (not coded) Model 140/210 ETS/SPS or ASR/SPS control module Model 140 SPS P-valve Model 140/210 ASR/SPS or ETS/SPS control module 57 .076. transmission faulty Short circuit between positive connection of speed sensitive power steering valve and ground (-) Short circuit at speed sensitive power steering valve Open circuit at speed sensitive power steering valve Volts supply at speed sensitive power steering control module Speed Sensitive Power Steering (SPS) Model 140 Model Years 6/93-8/95 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 Possible Cause of Failure No fault found Speed sensitive power steering control module Comparison of axle vehicle speed signal attars/left front axle vehicle speed signal faulty Axle vehicle speed signal status missing Speed-sensitive power steering control module Speed-sensitive power steering P-valve.032 140. open circuit Short circuit between speed sensitive power steering P-valve (+) and ground (-) 58 .Speed Sensitive Power Steering (SPS) Models 140.042 140.134 Model Years 1992-5/93 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 Possible Cause of Failure No fault found Speed sensitive power steering control module Left/center rear axle speed sensor signal Right rear axle vehicle speed sensor signal Diffident vehicle speed signals from right and left rear axle sensor No vehicle speed sensor signal Inductive speed sensor.076 140. short circuit Speed-sensitive power steering P-valve.051 140.070 140.057 140. front axle precharge solenoid valve (A7/3y16). short/open sircuit. solenoid valve relay (A7/3k1). open circuit. short/open sircuit. short/open sircuit. C1107 Right rear axle VSS sensor (L6/4). circuit 87 C1011 ASR/ETS/ESP hydraulic unit solenoid valve voltage supply. Voltage supply C1012 Battery voltage too high. left front axle solenoid valve (release) (A7/3y7). open circuit. C1301 ASR/ETS/ESP hydraulic unit. Master brake cylinder switchover valve (Y61). loose contact or signal out of range C1104 Left front axle VSS sensor (L6/1). C1307 ASR/ETS/ESP hydraulic unit. loose contact or signal out of range C1102 Left rear axle VSS sensor (ETS/EPS/SPS/ASR L6/3. signal out of range. interrupted C1100 Left front axle VSS sensor (L6/1). open/short circuit. short/open sircuit. signal out of range. signal out of range. C1141 ESP brake pressure sensor (B34) C1142 ABS lateral acceleration sensor (B24/2). N3/11). open/short circuit C1143 ABS lateral acceleration sensor (B24/2). C1024 CAN communication with transmission control module (N15/3). solenoid valve relay (A7/3k1). C1300 ASR/ETS/ESP hydraulic unit. right front axle solenoid valve (hold) (A7/3y8). open/short circuit C1140 Steering angle sensor (N49). signal out of range. ASR/ETS/ESP hydraulic unit. left rear axle solenoid valve (release) (A7/3y11). right rear axle solenoid valve (hold) (A7/3y12). C1304 ASR/ETS/ESP hydraulic unit. N3/12). ASR/ESP charging pump (M15). rear axle switchover valve (A7/3y19) or ASR/ETS Switchover solenoid (A7/3y5). voltage supply. open circuit. ASR. C1303 ASR/ETS/ESP hydraulic unit. C1308 ASR/ETS/ESP hydraulic unit. open/short circuit or initialization not performed. interrupted. short/open sircuit. signal out of range. circuit 87 C1020 CAN communication faulty. ETS. short/open sircuit. open/short circuit. loose contact or signal out of range C1103 Right rear axle VSS sensor (L6/4). open/short circuit or Stop lamp switch (S9/1). C1200 Stop lamp switch (S9/1). SPS) Model 129. interrupted. rear axle precharge solenoid valve (A7/3y17). short/open sircuit. left front axle solenoid valve (hold) (A7/3y6). 140. 202 210 Model Years 9/95-2000 6/96-2000 FAULT CODE TABLE DTC Readout Possible Cause of Failure C1000 ESP/SPS/Traction control module (N47-5) C1010 Battery voltage too low. loose contact or signal out of range C1101 Right front axle VSS sensor (L6/2). 59 . C1023 CAN communication with engine control module (left)(ME-SFI. C1302 ASR/ETS/ESP hydraulic unit. short/open sircuit. C1022 CAN communication with engine control module (right)(ME-SFI. ASR/ETS hydraulic unit. C1306 ASR/ETS/ESP hydraulic unit. short/open sircuit. C1105 Right front axle VSS sensor (L6/2). short/open sircuit. general. ASR/ETS/ESP hydraulic unit. ASR/ETS hydraulic unit. ABS L6). C1021 CAN communication with EA/CC/ISC control module. interrupted. right front axle solenoid valve (release) (A7/3y9). short/open sircuit. signal out of range. ABS L6). open circuit. C1305 ASR/ETS/ESP hydraulic unit. inlet solenoid valve (A7/3y15). C1120 ESP yaw sensor (N64) signal wire or reference wire. left rear axle solenoid valve (hold) (A7/3y10). ASR/ETS/ESP hydraulic unit. C1309 C1310 C1311 C1312 C1313 C1314 C1315 C1400 ASR/ETS/ESP hydraulic unit.Electronic Traction Systems (ABS. short/open sircuit. voltage supply. right rear axle solenoid valve (release) (A7/3y13). C1106 Left rear or rear axle VSS sensor (ETS/ASR L6/3. front axle switchover valve (A7/3y18). L6/3. L6/2. too high. open/short circuit or does not turn off. Steering angle sensor (N49) not initialized or Low voltage to ESP yaw rate sensor (N64) ETS/SPS control module (N47-2). version coding incorrect.DTC Readout C1401 C1500 C1501 C1503 C1504 C1511 C1512 C1513 C1514 C1515 C1600 Possible Cause of Failure ASR/ETS/ESP hydraulic unit. not version coded Brakes overheated .Check condition of rear brake pads and Pressure transfer piston unit. Vehicle Speed Sensor (VSS) (L6/1. SPS P-valve (Y10) adjustment data Version coding SPS Temperature after engine turned off. high-pressure/return pump (A7/3m1). L6/4) signal out of range. 60 .Brakes were momentarily overloaded. . System turned off. erase DTC. SPS P-valve (Y10) Pressure transfer piston unit. ASR/SPS (N47-1) or ME-SFI (N3/10) engine control module. limit switch. Soft top compartment cover "closed". Roll bar indicator lamp faulty 61 . The connection is located at the right front passenger footwell. limit switch Soft top "open" switch (soft top in storage compartment). limit switch Soft top "retracted". limit switch . limit switch. limit switch Soft top fabric bow "locked". circuit solenoid valve. Rear axle switch. short circuit to Battery + or ground (-). roll bar extended Circuit solenoid valve.Cabriolet Soft Top (CST) Model 124. Soft top compartment cover "open". limit switch Right front soft top "locked". limit switch Soft top fabric bow "raised". limit switch. limit switch Roll bar "extended". limit switch Soft top fabric bow "down".066 Model Years 1993-95 Connect wires of Scanner as follows Scanner Data Link Connector Yellow Power Soft top test connection (4 pole) at Socket 2. FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Possible Cause of Failure No fault found Volts low Normal operating time exceeded Limit switch signals Illogical Soft top compartment cover "locked".066 Model Year 1993-95 FAULT CODE TABLE DTC Readout 1 2 3 6 7 8 Possible Cause of Failure No faults found Roll bar control module Roll bar control module volts supply Roll bar deployment solenoid. short circuit to Battery + or ground (-). Soft top "overhead". Power windows Roll Bar (RB) for CST Model 124. solenoid valve. To avoid the need for an extension cable. solenoid valve. open circuit. connect the black lead of code scanner to any good ground and red lead to a battery + source inside vehicle. roll bar extended Circuit in power soft top control module. Automatic deployment of roll bar has occurred Power soft top switch Vehicle speed signal Circuit in power soft top control module. roll bar retracted Circuit hydraulic unit. roll bar retracted Circuit in power soft top control module. limit switch Left front soft top "locked". soft top storage compartment cover Limit switch. solenoid valve. soft top storage compartment cover Limit switch. solenoid valve. left closed. right closed.067 129.Roadster Soft Top (RST) Models 129. roll bar extended Hardtop installed recognition Circuit solenoid valve. soft top Limit switch soft top storage compartment cover open Limit switch soft top fabric bow raised Limit switch soft top down (in storage compartment) Limit switch soft top up (secondary closing speed ) Limit switch roll bar retracted Limit switch left side window down Circuit in power soft top control module. soft top storage compartment cover Limit switch. left locked. right front locked. roll bar retracted Axle vehicle speed signal illogical Circuit in power soft top control module.061 129. left front locked. soft top fabric bow Limit switch. soft top Limit switch. right locked. left locked. soft top storage compartment cover Limit switch. right locked.076 Model Years 1990-12/93 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Possible Cause of Failure No faults stored Limit switch.066 129. circuit solenoid valve. right closed. Power windows Roll bar switch Roll bar control module Roll bar crash deployment Limit switch signals illogical Operation time exceeded Insufficient volts No speedometer signal No axle vehicle wheel speed sensor signal Soft top operation blocked 62 . left closed. soft top fabric bow Limit switch. soft top fabric bow Limit switch. soft top fabric bow Limit switch. roll bar extended Power soft top switch Circuit in power soft top control module. roll bar retracted Limit switch right side window down Circuit hydraulic unit. Power soft top control module defective Roll bar crash deployment has occurred Power soft top switch or Roll bar switch. roll bar.066 129. Vehicle speed sensor fault RST/RB hydraulic unit Right or left power window activation Right or left front soft top “locked” switch fault. Soft top open/closed switch.061 129. Left and/or right axle switch.076 Model Years 1990-12/93 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 Possible Cause of Failure No faults found Roll bar control module Volts supply Driver seat belt lock relay open circuit or short circuit to Battery + or ground (-). open circuit or short circuit to Battery + or ground (-). Fabric bow locked switch. short circuit to 30 or 31 Roll bar warning lamp SRS warning lamp and/or code scanner button held to erase faulty SRS control unit 63 .Roadster Soft Top (RST) Model 129 Model Years 1/94-6/96 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 Possible Cause of Failure No faults stored Low voltage RST/RB hydraulic unit locked up. Passenger seat belt lock relay open circuit or short circuit to Battery + or ground (-). Power soft top switch indicator lamp or Roll bar switch indicator lamp or Warning buzzer.067 129. Roll bar deployment solenoid. Roll Bar (RB) for RST Models 129. short to ground Short to positive. open circuit Infrared Remote Control for Central Locking (IRCL) Model 140 Model Years 1992-96 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 Possible Cause of Failure No fault found Left front door actuator. short to circuit 30 (Battery +) 64 .Infrared Remote Control for Central Locking (IRCL) Models 129. Left front door/Right front door/Trunk lid Green indicator lamps. short to ground Infrared remote control receiver. central locking system. Left front door/Right front door/Trunk lid Red indicator lamps. central locking system short to ground Infrared remote control receiver. short to circuit 30 ATA/convenience microswitch wiring short to circuit 30 ATA/convenience microswitch wiring short to circuit 30 Ignition/starter switch-position recognition switch.067 129. short to positive Green indicator lamps. open circuit Trunk lid lock actuator. short to ground Supply pump. open circuit 31 Left front door actuator.076 Model Years 1990-1993 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Possible Cause of Failure No fault found Infrared remote control module Supply pump. Left front door/Right front door/Trunk lid Red indicator lamps. short to circuit 30 Infrared remote control receiver. short to positive Infrared remote control module faulty Immobilization output. open circuit Warning buzzer -open circuit Warning buzzer -open circuit to ground Red indicator lamps.061 129. lock circuit 2 Red indicator lamps. short to ground Green indicator lamps.066 129. open circuit Right door actuator. short to circuit 30 or open circuit Infrared remote control receiver. in receiver have short to short to circuit 30 or open circuit Driver door switch group wiring. Left front door/Right front door/Trunk lid Green indicator lamps. lock circuit 1 Short to positive. open circuit Ignition/starter switch-position recognition switch. Left front door/Right front door/Trunk lid Red indicator lamps. air demand too high. air demand too high. Rear head restraint retraction Signal fault. leakage Manifold vacuum assist. short to B (+) Pneumatic Systems Equipment (PSE) Models 129 140 Model Years 1992-94 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Possible Cause of Failure No fault found Central locking system. short to B (+) Infrared remote control receiver. central locking system. open circuit Immobilization output. Central locking interior control switch Signal fault. leakage Orthopedic backrest pressure. Central locking interior control switch signal is present for longer than 2 minutes Rear head restraint retraction signal is present for longer than 2 minutes Not used 65 . lock circuit 1 Short to positive. short to B (+) ATA/CF microswitch wiring short to B (+) ATA/CF microswitch wiring short to B (+) Ignition/starter switch-position recognition switch. short to ground Supply pump. open circuit Trunk lid lock actuator.Infrared Remote Control for Central Locking (IRCL) Model 129 Model Years 1993-96 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Possible Cause of Failure No fault found IRCL control module Supply pump. short to B (+) or open circuit Infrared remote control receiver. air demand too high. leakage Retractable trunk lid grip. Front door Signal from lock circuit 1 is present for longer than 2 minutes Signal from lock circuit 2 is present for longer than 2 minutes. air demand too high. short to B (+) or open circuit Driver door switch group wiring. open circuit Right door actuator. leakage Short to positive. leakage Backup assist. air demand too high. short to ground Infrared remote control receiver. Left front door/Right front door/Trunk lid Green indicator lamps. Left front door/Right front door/Trunk lid Red indicator lamps . open circuit Ignition/starter switch-position recognition switch. open circuit 31 Left front door actuator. lock circuit 2 Signal fault. central locking system short to ground Infrared remote control receiver. Left front door/Right front door/Trunk lid Green indicator lamps. 17 Pneumatic control module faulty Anti-theft Alarm System(ATA) Models 129.061 129.066 129.067 129.076 140.032 140.042 140.051 140.057 140.070 140.076 140.134 129 140 202 Model Years 1990-93 1990-93 1994-96 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 10 12 14 19 20 21 23 Possible Cause of Failure No fault found Alarm activated, trunk sensor circuit Alarm activated, engine hood circuit Alarm triggered, glove compartment Alarm activated, rear door circuit Console compartment circuit Alarm activated, front door circuit Alarm activated, radio circuit Alarm activated, ignition circuit Alarm activated, brake circuit AT Control module faulty Left front door actuator, No ground connection ATA disarmed, Starter lock-out relay module. short to circuit 30 ATA armed, Open to circuit 30 Cellular Telephone (CT) Models 129.061 129.066 129.067 129.076 140.032 140.042 140.051 140.057 140.070 140.076 140.134 Model Years 1992-95 1992-95 If a fault code is set, the code is shown on the in-car telephones display and the phone goes off-line. FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 Possible Cause of Failure TR memory defect (ROM) TR memory defect (RAM) NAM defect ESN defect TR memory defect (EE PROM) TR output power defect IDCM defect TR output power control defect 66 Convenience Features (CF) Model 140 Model Year 1992-96 FAULT CODE TABLE DTC Possible Cause of Failure 1 No fault found 2 Control module, Close circuit for left front power window motor 3 Control module, Open circuit for left front power window motor 4 Control module, Close circuit for right front power window motor 5 Control module, Open circuit for right front power window motor 6 Control module, Close circuit for left rear power window motor 7 Control module, Open circuit for left rear front power window motor 8 Control module, Close circuit for right rear power window motor 9 Control module, Open circuit for right rear power window motor 10 Switch for left front power window Closing time exceeded 11 Switch for left front power window Opening time exceeded 12 Switch for right front power window Closing time exceeded 13 Switch for right front power window Opening time exceeded 14 Left rear power window circuit and left rear power window switch front console closing time exceeded 15 Left rear power window circuit and left rear power window switch front console opening time exceeded 16 Right rear power window circuit and right rear power window switch front console closing time exceeded 17 Right rear power window circuit and right rear power window switch front console opening time exceeded 18 Circuit for left front lock switch, right front, trunk lid lock switch closing time exceeded, lock switch circuit 2 19 Circuit for left front lock switch, right front, trunk lid lock switch opening time exceeded, lock switch circuit 1 20 Left front power window switch short to ground or wires reversed 21 Right front power window switch short to ground or wires reversed 22 Left rear window circuit and left rear power window switch front console short to ground or wires reversed 23 Right rear power window circuit and right rear power window switch front console short to ground or wires reversed 24 Left front power window motor , wiring or speed sensor 25 Right front power window motor, wiring or speed sensor 26 Left rear power window motor, wiring or speed sensor 27 Right rear power window motor, wiring or speed sensor 28 Left front power window motor, sensor wiring reversed 29 Right front power window motor, sensor wiring reversed 30 Left rear power window motor, sensor wiring reversed 31 Right rear power window motor, sensor wiring reversed 32 Left front power window motor, Speed sensor signal faulty 33 Right front power window motor, Speed sensor signal faulty 34 Left rear power window motor, Speed sensor signal faulty 35 Right rear power window motor, Speed sensor signal faulty 36 Convenience control module faulty 37 Volts too low(9V), circuit 30E fuse F4-11 38 Sliding/pop-up roof switch circuit short, check wiring harness 39 Volts supply circuit 30 A, control module 40 Volts supply circuit 30 B, control module 67 Supplemental Restraint System (SRS) - AnalogModels 107 124 126 129 201 140 Model Years 1988-1993 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 Possible Cause of Failure No fault found SRS Control unit self test failure Driver Airbag squib (Firing charge circuit) Front passenger Airbag squib Driver seat beat buckle switch (ETR,) Front passenger seat belt buckle switch (ETR) Front passenger Airbag resistor Voltage supply interrupted (Circuit 15R) SRS Warning Lamp (with flashing SRS warning lamp Impulse counter scan tool button held too little time to read out the DTC memory or too long to erase DTC codes. Reread codes.) SRS Control unit activated - Replace (1990 and later switch to next circuit if used 3 times replace) Supplemental Restraint System (SRS) BAE, ZAE - Digital Models 129 140 124 202 210 Model Years 1994-95 From beginning of manufacture -1995 FAULT CODE TABLE DTC Readout 1 2 3 4 5 17 19 20 24 25 73 Possible Cause of Failure SRS Control unit SRS Driver air bag squib Left front ETR squib Right front ETR squib Model 140R12/8Front passenger airbag squib 1 Low volts, Voltage supply circuit 15R SRS indicator lamp. failure Front passenger seat occupation signal (currently not used) Driver seat belt buckle switch (Airbag/ETR) Front passenger seat belt buckle switch (ETR) Squib short circuit 68 0 Position child seat properly or replace. telephones etc.0 13.Model 170) Analog crash output. verify vehicle version. (B48) Front passenger seat occupied recognition with automatic child seat recognition (ACSR) Improperly positioned child seat or faulty.0 19. 1.0 3. 6. 34 17 3 19 2 20 25 10 24 (USA) 25 (USA) 73 26 16 17 18 19 20 21 22 23 27 28 Model Years 1996-99 Possible cause SRS control module failed self test (N2/2) Driver Airbag ignitor (R12/3) Left front seat belt ignitor (ETR) (R12/1) Right front seat belt ignitor (ETR) (12/2) Front passenger Airbag ignitor (R12/8) Left side door Airbag ignitor (R12/9) Right side door Airbag ignitor (R12/10) Programming does not comply with vehicle version Voltage supply (low voltage) Circuit 15R SRS indicator lamp circuit failure (A1e15) Front passenger seat occupied recognition sensor (B41/1) or (B48) Programming does not comply with vehicle version Left front seat belt buckle micro-switch Right front seat belt buckle micro-switch Ignitors are short circuited to each other. check harness routing if accessories installed. Left side Airbag harness fault. check harness routing if accessories installed.0. (A53) Left side Airbag sensor defective. 69 .0 31.0. verify vehicle version.0 17. 8. Connection between passenger seat and child seat faulty. 0. Short term electromagnetic interference in immediate area such as electronic transmitters.0 16.0 9.0 Replace sensor Replace sensor 18. 12.0 Replace sensor Replace sensor 20. communication.0.0. (A53) Left side Airbag sensor defective. Replace B48 31 32 33 34 35 Replace B48 Electromagnetic interference. 0 15. 10. 18.0 14.0 11. (A54) Right side Airbag sensor defective.0. (A54) Front passenger seat occupied recognition with automatic child seat recognition (ACSR).0 31. Metallic objects on passenger seat or child seat. repeat programming.1) 2. 29. 17. harness fault (ARTHUR .0. (B48). 26.0.Supplemental Restraint System (SRS) w/Side Airbags . repeat programming.0 7.Digital Models 129 (R) 140 (S) 202 (C) 210 (E) FAULT CODE TABLE 000 001 DTC 1 DTC 2 1 1 2 4 3 5 4 6 5 7 8 8 9 9 10 4-9. harness fault (Model 170 Kompressor) Test step/Remedy (See Diag Man.0 5. 4. (A54) Right side Airbag sensor defective. 16. Front passenger seat occupied recognition with automatic child seat recognition (ACSR) (B48) Left side Airbag communication interference (A53) Right side Airbag communication interference (A54) Digital crash output. Electromagnetic interference. B&A V5. 16. (A53) Right side Airbag harness fault. CF) Models 129 140 124 202 210 Model Years 1996-2000 1997-2000 FAULT CODE TABLE DTC Readout Possible Cause of Failure B1000 Control module faulty. B1117 Interior switch (CL) (S6/1s2). ATA. B1023 Passenger's seat does not communicate via CAN data line. fails self test. B1015 Circuit 30C. fuse F4-7 B1017 Circuit 31B B1021 CAN data line. short to B+ or Ground B1101 Control line for Lock nut 2/Panic alarm from RCL control module (N54) to CCM (N10) B1101 Control line activation. short to ground. has no voltage at circuit 15. open circuit or short to B+ or ground. B1055 CAN HIGH (CAN-H) communications fault with front door module. or wiring fl (short circuit) B1115 Rear window defroster switch > 25 s.5 Volts B1013 Circuit 15R voltage supply missing at circuit 15. CF. B1025 CAN data line HIGH or Combination Control Module (N10-1 or N10-3). B1148 Circuit 50 output. open circuit or short to B+ or ground. signal > 25 sec. B1100 Lock Switch circuit SN1/SN2 from RCL control module (N54) to CCVM (N10-1 or N10-3). short to B+ or Ground B1104 Green indicator lamp. B1119 Outside rearview mirror vertical/horizontal/left/right adjustment (S21 s6/s7/s8) > 25 seconds. greater than 15. ATA). B1114 Steering column up/down switch (S91/2s11) or Steering column in/out switch (S91/2s12) stuck/binding. B1001 Left/right front ESA control module (N32/1. B1014 Circuit 49 travel direction. B1054 CAN LOW (CAN-L) communications fault with front door module. B1024 CAN data line LOW or Combination Control Module (N10-1 or N10-3). CF. B1204 Left front ESA motor group (with memory). B1100 Control line deactivation. ATA). short to B+ or Ground B1111 Backrest switch harness or Short to ground. f l + B1116 RHR unlock switch (S6/1s3). head restraint raise/lower motor (M27m4) (Hall sensor defective) or open circuit. short to B+ or Ground B1103 Right Front door IR receiver or Red indicator lamp. (PSE/CL. MSC. (PSE/CL. open circuit or short to B+ or ground. B1132 Alarm triggered via glove box. short to B+ or Ground B1102 Left Front Door IR receiver or Drive Authorization System (DAS) control line. PSE.BODY CONTROL SYSTEMS (SRS. open circuit or short to B+ or ground. B1156 Left front seatback release microswitch (S91/3) or Left front hibernation microswitch (S91/1s2). less than 9/10 Volts B1011 High supply voltage. signal greater than 25 sec. circuit short B1157 ESC Control Module (N26/5). B1113 Rear fore/aft adjustment and height adjustment harness or Short to ground.. B1200 Hall-sensor for fore/aft motor (M27m1) B1201 Hall-sensor for front raise/lower motor (M27m3) B1202 Hall-sensor for rear raise/lower motor (M27m2) B1203 Left front ESA motor group (with memory). signal greater than 25 sec. communication with PSE control module (A37) interrupted. circuit 58d. B1124 Remote trunk release switch (S15). wiring (short circuit) B1010 Low supply voltage. B1022 Driver's seat does not communicate via CAN data line. N32/2) (with memory) B1001 Switch illumination. open circuit or short to B+ or ground. backrest fore/aft motor (M27m5) (Hall sensor defective) or open 70 . IRCL. RST. B1112 Front head restraint adjustment and height adjustment harness or Short to ground. Not applicable for U.Pneumatic demand too high. CAN .Pneumatic demand too high. Alarm siren with auxilliary battery (H3/1) not installed. Multi-contour seat.Pneumatic demand too high or CL pneumatic system leak. Activation of locking confirmation relay module (K54) or combination relay module or turn signal system.S. Central locking . Not applicable for U. vehicles.S.B1213 B1214 B1217 B1220 B1221 B1276 B1277 B1278 B1279 B1310 B1311 B1315 B1321 B1322 B1406 B1407 B1407 B1407 B1408 B1409 B1410 B1411 B1435 B1436 B1437 B1438 B1439 B1440 B1470 B1471 B1476 B1497 B1507 B1508 B1510 B1521 B1521 B1521 B1521 B1701 B1702 B1703 B1704 B1705 B1706 B1707 B1708 B1709 circuit. Not applicable for U. vehicles. Door or Fuel Door. vehicles. vehicles. Manifold vacuum assist.Pneumatic demand too high. A.S. Entrance/exit lamp wiring short to B+ or combination control module (N10-1) I Faulty signal from mirror postion memory (M21/7n1) (up/down) to right outside rearview mirror (M21/7) Faulty signal from mirror postion memory (M21/7n1) (right/left) to right outside rearview mirror (M21/7) Verticle adjustment motor (M21/5m1) (up/down) or Horizontal adjustment motor (M21/5m2) (in/out).S. (N10-1 or N10-3). Time > maximum . A. SRS MIL (Lamp) (A1e15) Not applicable for U. vehicles. air pressure or safety time .S. Not applicable for U. vehicles. Left side airbag sensor (A53/1) Right side airbag sensor (A54/1) Front passenger seat occupied recognition with automatic child seat recognition (ACSR (B48)) Left front seat belt buckle switch (AB/ETR) (S68/3) Right front seat belt buckle switch (AB/ETR) (S68/4) Dome lamp control wire short to B+ from combination control module.Communication fault with Signal pick-up and activation module (SAM) (N10/1). A. (8 or 12 cylinder) (CAN) Attempt was made to start vehicle locked via RCL or invalid transponder code. vehicles. Verticle adjustment motor (M21/4m1) (up/down) or Horizontal adjustment motor (M21/4m2) (in/out). Remote trunk lid release (RTR).S. short to B+ or Ground. A. right cylinder bank. Not applicable for U. vehicles. M21/7m2) (short circuit wiring or motor) Mirror heater (M21/7r1) (short circuit) or Front passenger-side door control module (N69/2) Incorrect authorization code. Not applicable for U. Not applicable for U. left cylinder bank.S. Electrically adjustable and heated driver-side outside rearview mirror (with memory) (M21/4) >25 seconds Electrically adjustable and heated driver-side outside rearview mirror (with memory) (M21/4) >2 seconds.Pneumatic demand too high. Coil for transponder (coil will not saturate). turn signal system. Retractable head restraint . A. A. Activation of locking confirmation relay module (K54). A. vehicles.S. A. short to B+ or Ground. faulty coil. Combination control module (N10-1) does not switch Combination control module (N10-1) does not switch Short circuit to ATA tow sensor.S. Left front ESA control module (N32/1) Mirror-Horizontal adjustment motor (M21/7m2) (short circuit wiring or motor) Mirror-Vertical adjustment motor (M21/7m1) (short circuit wiring or motor) Mirror-adjustment motor (M21/7m1.Communication fault with Roof Control Module (N70) CAN . (4 or 6 cylinder) (CAN) Incorrect authorization code. 71 . continue to next test step. A. Time > maximum . not version coded or defective. Non-USA vehicles only. Not applicable for U. vehicles. Y. A.S. Not applicable for U. 1996) Alarm (ATA) triggered via telephone Alarm (ATA) triggered via FAX equipment Alarm (ATA) triggered via ignition system Alarm (ATA) triggered via stop lamp switch (S9/1) Not applicable for U.S. vehicles. (A37) Serial interface from K2 control module interupted. vehicles. Not applicable for U.S.S. A. vehicles. Alarm (ATA) triggered via radio (running change during M. Alarm (ATA) triggered via anti-tow protection. A. Left front ESA control module (N32/1) does not communicate with front driverside door control module (N69/1) Left front ESA control module (N32/1) does not communicate with front driverside door control module (N69/1) Left front ESA control module (N32/1) does not communicate with electronic ignition lock control module (N73) Left front ESA control module (N32/1) does not communicate with PSE control module (A37) Left front ESA control module (N32/1) does not communicate with electronic ignition lock control module (N73) Driver airbag squib (R12/3) Front passenger AB squib (R12/8) Driver ETR squib (R12/1) Front passenger ETR squib (R12/2) LR ETR squib (R12/6) RR ETR squib (R12/7) Left front side airbag squib (R12/20) Left rear windowbag squib (R12/22) RR side airbag squib (R12/12) Right front side airbag squib (R12/21) Right rear side airbag squib (R12/23) RR side airbag squib (R12/12) Digital crash output Analoge crash output Automatic child seat recognition warning lamp (N72e1) (AIRBAG OFF) 72 . PSE Control Module combined functions. A. Circuit 30 interupted while in armed state Not applicable for U.B1710 B1711 B1712 B1713 B1714 B1715 B1716 B1718 B1719 B1720 B1721 B1722 B1723 B1724 B1725 B1726 B1727 B1728 B1729 B1748 B1755 B1850 B1851 B1852 B1853 B1854 B1859 B1861 B1863 B1864 B1865 B1866 B1867 B1868 B1869 B1871 B1872 B1873 B1875 B1876 B1878 Alarm (ATA) triggered via trunk lamp switch (S17/8) Alarm (ATA) triggered via engine hood switch (S62) Alarm (ATA) triggered via left front door switch (S17/3) Alarm (ATA) triggered via right front door switch (S17/4) Alarm (ATA) triggered via left rear door switch (S17/5) I Alarm (ATA) triggered via right rear door switch (S17/6) Reserve Alarm Input. 028 201.029 201. short circuit Feedback potentiometer. short circuit In car temperature sensor.126 201. open circuit Coolant temperature gauge sensor. low speed faulty Blower switch. open circuit Evaporator temperature sensor. open circuit Feedback potentiometer.034 201. short circuit Evaporator temperature sensor. high speed faulty 73 .Tempmatic A/C Models 201.128 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 12 13 14 15 30 33 34 50 51 52 54 55 56 57 58 59 60 61 62 Model Year 1988-93 Possible Cause of Failure No fault found In car temperature sensor. short circuit A/C compressor control module. open circuit Outside temperature sensor. short circuit Auxiliary fan relay short circuit Switchover valve unit (5 connections) between pins 5 and 4 faulty Switchover valve unit (5 connections) between pins 5 and 6 faulty Switchover valve unit (5 connections) between pins 5 and 2 faulty Switchover valve unit (5 connections) between pins 5 and 3 faulty Switchover valve unit (4 connections) between pins 5 and 1 faulty Switchover valve unit (4 connections) between pins 5 and 2 faulty Switchover valve unit (4 connections) between pins 5 and 1 faulty Switchover valve blend air flaps (warm) short circuit Switchover valve blend air flaps (cold) short circuit Switchover valve blend air flaps (closes) short circuit Blower switch. open circuit Coolant pump. short circuit Coolant temperature gauge sensor. short circuit Outside temperature sensor. Short circuit or Switchover valve unit.025 126.Short circuit Engine coolant temperature sensor .Open circuit Right heat exchanger temperature sensor .230 124. faulty between pins 8 and 7 (7 connections) Switchover valve unit.290 126.135 Model Years 1988-95 1988-91 FAULT CODE TABLE DTC Readout 1 2 3 4 5 6 7 8 9 10 11 12 13 30 31/32 33 34 50 51 52 54 55 56 57 Possible Cause of Failure No fault found In car temperature sensor .134 126.051 124.Short circuit Evaporator temperature sensor .Open circuit Engine coolant temperature sensor .Short circuit In car temperature sensor .Open circuit Outside temperature sensor . faulty between pins 8 and 3 (7 connections) Switchover valve unit. long stroke . faulty between pins 8 and 6 (7 connections) Switchover valve fresh air/recirculated air flaps.Short or open circuit A/C compressor cut-out control module . faulty at between pins 5 and 8 (7 connections) Switchover valve unit.Short circuit Outside temperature sensor .Automatic A/C Models 124.Open circuit or Heater core sensor .090 124. faulty between pins 8 and 4 (7 connections) Switchover valve unit. faulty between pins 8 and 2 (7 connections) Switchover valve fresh air/recalculated air flaps.Short circuit or Heater core temperature sensor .045 126. faulty between pins 8 and 1 (7 connections) 74 .Open circuit Evaporator temperature sensor .035 126.Short or open circuit Duo valve .Short circuit Switchover valve unit.Short circuit or Switchover valve unit.036 124.Short circuit Left heat exchanger sensor .024 126.039 126.026 124.034 124.Short circuit Right heat exchanger temperature sensor .050 124. long stroke .Open circuit Coolant circulation pump .Short or open circuit Auxiliary fan 2nd stage (actuation) .030 124.Open circuit Left heat exchanger temperature sensor . press the "RECIRCULATE AIR" and "REST" button simultaneously for 3 sec. Soft Top CLOSED : "O" Power Supply Voltage OFF/ON (Not Used) Blower Motor Voltage "050" (0.TAU 2.. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. At the upper side of the operating consol there is a display."600" (6.0v) TAU 2. In-Car Temperature Sensor (B10/4) In-Car Temperature Sensor (B10/4) Outside Temperature Sensor (B10/5) Outside Temperature Sensor (B10/5) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Heater Core Temperature Sensor (B10/1)) Heater Core Temperature Sensor (B10/1) Cause No faults Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit 75 Baum Tools Unlim ited Inc. FAULT CODES . The fan speed selector NOT on position 1 5. 3. Example: "OP E" : Open circuit or "CL O" : Closed circuit.1 FAULT DIAGNOSIS 1 Turn temperature selector wheel into the white area. Ignition ON : Position 1 4. The display alternates between the sensor/component number and the value of that sensor/component. COMPONENT UNDER TEST Number 02 04 06 08 10 12 14 16 18 20 22 83 84 Component Interior Temperature Sensor Exterior Temperature Sensor Evaporator Temperature Sensor Left Heater Core Temperature Sensor Right Heater Core Temperature Sensor Engine Coolant Temperature Sensor (ECT) Left Temperature Selector Wheel Setting (Degree C) Right Temperature Selector Wheel Setting (Degree C) Vehicle Speed Signal(km/h) Soft Top OPEN : "U". 5 Press the AUTO button until all error numbers are read and recorded.1 READING ACTUAL VALUES 1.com . 2 Place the air speed selector at position 0 and the air direction to "DOWN" 3 IGNITION = ON : Position 1 4 Within the next 10 sec.1990-97 TAU 2.1 DTC Readout 1 2 3 4 5 6 7 8 9 Description No DTC's Stored in System Memory.A/C SELF DIAGNOSTIC SYSTEMS . Remove the operating console from the TAU 2.5v) . TAU 2.com .1990-97 FAULT CODES .1 DTC Readout 10 11 12 13 16 17 18 19 20 21 22 23 24 25 26 27 30 31 32 33 34 35 50 70 71 72 73 74 75 Description Heater Core Temperature Sensor (Right) Heater Core Temperature Sensor(Right) Engine Coolant Temperature Sensor (B10/8) Engine Coolant Temperature Sensor (B10/8) Center Air Vent Control Module (N18/2r2) Center Air Vent Control Module (N18/2r2) Center Air Vent Feedback Potentiometer (R23/3) Center Air Vent Feedback Potentiometer (R23/3) Left Air Vent Control Module (N18/2r1) Left Air Vent Control Module (N18/2r1) Left Air Vent Feedback Potentiometer (R23/1) Left Air Vent Feedback Potentiometer (R23/1) Right Air Vent Control Module (N18/2r3) Right Air Vent Control Module (N18/2r3) Right Air Vent Feedback Potentiometer (R23/2) Right Air Vent Feedback Potentiometer (R23/2) Auxiliary Coolant Pump Automatic A/C Monovalve (Left) Automatic A/C Monovalve (Right) A/C Compressor Signal Auxiliary Fan Signal 2 Stage Auxiliary Fan Signal 1 Stage Switchover Valve Block Signal Auxiliary Coolant Pump Automatic A/C Monovalve (Left) Automatic A/C Monovalve (Right) A/C Compressor Signal Auxiliary Fan Signal 2nd Stage Auxiliary Fan Signal 1st Stage Cause Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Short Circuit Short Circuit Short Circuit Short Circuit Short Circuit Short Circuit Open Circuit Open Circuit Open Circuit Open Circuit Open Circuit Open Circuit 76 Baum Tools Unlim ited Inc.A/C SELF DIAGNOSTIC SYSTEMS . 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. is displayed in the window. 2. Press the "RECIRCULATE AIR" button again to see the next DTC.129 Chassis to 8/95 DTC Readout 1 2 3 4 5 6 7 Description No DTC's Stored in System Memory. The temperature window (upper left) will alternately display the test step number (ex. To erase the DTC's : IGNITION ON : Position 1 Press the "RECIRCULATE AIR". 4. "02" In-car Temp) or "0P E" for Open Circuit or "Cl 0" for Closed Circuit. "REST" and "UP" buttons simultaneously until --. "RECIRCULATE AIR" and "REST" buttons simultaneously for 2 to 4 seconds.5V) . FAULT CODES . In-Car Temperature Sensor (B10/4) In-Car Temperature Sensor (B10/4) Outside Temperature Sensor (B10/5) Outside Temperature Sensor (B10/5) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Cause No Faults Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Baum Tools Unlim ited Inc. Until "END" is shown."600" (6.0V) 129 Chassis to 8/95 FAULT DIAGNOSIS 1. Press "C" button to go to a lower test. 3.com 77 . Press "F" button to go to higher test. 6. Turn temperature selector wheel into the white area. Soft Top CLOSED : "O" Power Supply Voltage OFF/ON (Not Used) Blower motor voltage "050" (0.. press the "RECIRCULATE AIR" button after each is displayed until the display reads "END" 5.A/C SELF DIAGNOSTIC SYSTEMS . A SQUARE is shown after each DTC to indicate that it is intermittent. Within the next 10 sec. Press "RECIRCULATE AIR" button again and the intermittent DTC's will be shown. Press the REST button and within 1 second press blower speed button 4. press the "F". IGNITION ON : Position 1 3. 6. The display will show the permanent DTC's stored. COMPONENT UNDER TEST Number 02 04 06 08 12 14 18 20 22 83 84 Component In-Car Temperature Sensor Outside Temperature Sensor Evaporator Temperature Sensor Heater Core Temperature Sensor Engine Coolant Temperature (ETC) Sensor Temperature Selector Wheel Setting Vehicle Speed Signal(km/h) Soft Top OPEN : "U" . 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. IGNITION ON : Position 1 2. 4. To end this test mode turn IGNITION OFF : Position 0 for longer then 5 seconds.1990-97 129 Chassis to 8/95 READING ACTUAL VALUES 1. 5. 1st Stage Cause Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Open Circuit Short Circuit Short Circuit Short Circuit Short Circuit Short Circuit Short Circuit Short Circuit Open Circuit Open Circuit Open Circuit Open Circuit Open Circuit Open Circuit 78 Baum Tools Unlim ited Inc.129 Chassis to 8/95 DTC Readout 8 9 10 11 12 13 16 17 18 19 20 21 22 23 24 25 26 27 30 31 32 33 34 35 50 70 71 72 73 74 75 Description Heater Core Temperature Sensor (B10/1)(Left) Heater Core Temperature Sensor (B10/1)(Left) Heater Core Temperature Sensor (Right) Heater Core Temperature Sensor(Right) Engine Coolant Temperature Sensor (B10/8) Engine Coolant Temperature Sensor (B10/8) Center Air Vent Control Module (N18/2r2) Center Air Vent Control Module (N18/2r2) Center Air Vent Feedback Potentiometer (R23/3) Center Air Vent Feedback Potentiometer (R23/3) Left Air Vent Control Module (N18/2r1) Left Air Vent Control Module (N18/2r1) Left Air Vent Feedback Potentiometer (R23/1) Left Air Vent Feedback Potentiometer (R23/1) Right Air Vent Control Module (N18/2r3) Right Air Vent Control Module (N18/2r3) Right Air Vent Feedback Potentiometer (R23/2) Right Air Vent Feedback Potentiometer (R23/2) Auxiliary Coolant Pump (M13) Automatic A/C Monovalve (Y19) Automatic A/C Monovalve (Right) A/C Compressor Signal Auxiliary Fan Signal.com . 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. 1st Stage Switchover Valve Block Signal (Y11) Auxiliary Coolant Pump (M13) Automatic A/C Monovalve (Y19) Automatic A/C Monovalve (Right) A/C Compressor Signal Auxiliary Fan Signal.A/C SELF DIAGNOSTIC SYSTEMS . 2nd Stage Auxiliary Fan Signal. 2nd Stage Auxiliary Fan Signal.1990-97 FAULT CODES . example 00. Feedback Potentiometer Voltage Baum Tools Unlim ited Inc. : 7 = 7 mA Engine RPM.8 = 12. Roof "OPE" = OPEN.99 (x100) = 9900 Vehicle Speed PIN 58D exp. 5. Potentiometer Voltage Vacuum Actuator 47. The left display will alternately show the number "01" and the in-car temperature. Press the REST button to end the test program.1990-97 129 Chassis from 9/95 READING ACTUAL VALUES 1. Set temperature selector to 72 degrees F. 3. "CLO" = CLOSED Left Air Outlet.. 4. Potentiometer Voltage Vacuum Actuator 47. Press the FAN button and the next component number and its value will be displayed. Feedback Potentiometer Voltage Right Air Outlet. 6.8 Volt A/C Controller Software Version Coding A/C Controller Hardware Version Variant code 1 Variant code 2 Not Used Not Used Not Used ON/OFF A/C Compressor emergency off signal from engine control module. 99.0 = 99% of Battery Voltage Battery Voltage : 12. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. IGNITION : Position 1 2. Press the REST button for more than 6 seconds. Feedback Potentiometer Voltage Center Air Outlet.com 79 . COMPONENT UNDER TEST Number 01 02 03 05 06 07 08 09 10 20 21 22 23 24 40 41 42 43 50 51 52 54 60 61 62 63 64 65 66 Component In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Temperature Sensor (B14) Left Heater Core Temperature Sensor (B10/2) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (ECT) (B11/4) Refrigerant Pressure in Bar Refrigerant Temperature Sensor (B12/1) Not Used Blower Control Voltage Control Current for Auxiliary Fan exp.A/C SELF DIAGNOSTIC SYSTEMS . Potentiometer Voltage Vacuum Actuator 46. "END'" is displayed when all codes have been displayed. FAULT CODES .A/C SELF DIAGNOSTIC SYSTEMS . IGNITION : OFF to end the test program. IGNITION : Position 1 2. Temperature selector wheel : "LO" 3. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. 5. Press v and ^ simultaneously for more than 5 seconds. Press AUTO to cancel the erase. The current faults are displayed first. 8. Within 20 seconds press the REST and DEFROST buttons simultaneously for more than 5 seconds.1990-97 129 Chassis from 9/95 FAULT DIAGNOSIS 1. To erase codes press AUTO again. The LED in the RECIRCULATE button flashes and "dI A" appears on the display. The display will then show "---".com . then the intermittent faults. 4. 7. "dEL" will be displayed. Press the AUTO button until all DTC's are displayed and recorded. 6.129 Chassis from 9/95 DTC Readout 026 226 227 228 230 231 232 233 241 416 417 419 420 421 422 423 459 Description CAN Bus Communication In-Car Air Temperature Sensor (B10/4) Outside Air Temperature Sensor (B14) Heater Core Temperature Sensor (B10/2) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (B11/4) Refrigerant Pressure Sensor (B12) Refrigerant Temperature Sensor (B12/1) Refrigerant Level Coolant Circulation Pump (A31m1) Automatic A/C Monovalve (Y19) A/C Compressor Electromagnetic Clutch (A9k1) Closed (Idle) Throttle Speed Increase Auxiliary Fan Control Module (N65/1) Serial Interface Connection (K1) to Instrument Cluster (IC) Switchover Valve Block (15 connection multiplex) (Y11) Serial Interface Connection (K2) to Instrument Cluster (IC) 80 Baum Tools Unlim ited Inc. 1990-97 140 Chassis to 8/95 READING ACTUAL VALUES 1. 3. 2. 7. Press the "REST" button to end the test mode. Within 20 seconds press the "REST" button for more than 5 sec. Left window "E0" or "E1".A/C SELF DIAGNOSTIC SYSTEMS . A "d" (delete) is displayed in the left window. 5. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Record each DTC and press the right "AUTO" button to display the next code. Press the left "AUTO" button. By pressing the right "AUTO" button the DTC will be deleted. COMPONENTS UNDER TEST Number 01 02 03 04 05 06 07 08 09 10 11 12 13 16 Component In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Temperature Sensor (B10/5) Left Heater Core Temperature Sensor (B10/2) Right Heater Core Temperature Sensor (B10/3) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature (ECT) Sensor (A/C) (B10/8) Refrigerant Pressure in Bar : Ex. 5. right window "01". Continue until "END" is displayed. Alternate left and right "AUTO" buttons until all DTCs are erased and "E0 00" is displayed.. IGNITION = ON : Position 1 3. 4.4 Bar Blower Control Voltage from 8(min) . To erase the DTC's : Turn IGNITION OFF. A/C Pushbutton Control Module(N22) Mfg.com 81 . Press the left "AUTO" button to monitor the next component. Press the left and right "AUTO" buttons. Press the "AUTO" button. LEFT DISPLAY = Component Number RIGHT DISPLAY = Actual Component Value or "HI" for a short circuit or "LO" for an open circuit 6. "02". Within 20 seconds. 2. Turn the right selector wheel into the blue area.etc. 7.60(max) Software Status. Go to next page for Fault Codes Baum Tools Unlim ited Inc. 6.. Then turn IGNITION ON : Position 1. Turn temperature selector wheel into the white area. Rear A/C Pushbutton Control Module(N22) Mfg. press the "REST" and "O" button for more than 2 seconds. The display will show the permanent DTC's stored. 06'4 = 6. IGNITION = ON : Position 1. 4. Control Module Applicable for Charcoal Filter : "A"=YES "0 "=NO 140 Chassis to 8/95 FAULT DIAGNOSIS 1. Left rear heater core temperature sensor (B10/9) Right rear heater core temperature sensor (B10/10) Rear Evaporator Temperature Sensor (B10/11) Software Status. Turn the left selector wheel into the red area. A/C Pushbutton Control Module (N22) Rear A/C Pushbutton Control Module (N22/3) Connection to the Switchover Valve Block (Y11) Data Exchange (CAN B) Data Exchange (CAN A) Data Exchange (CAN A and CAN B) Make the Diagnosis Again. Data Exchange (CAN B) Data Exchange (CAN A) Connection with the Rear A/C Pushbutton Control Module Data Exchange (CAN B) : Rear A/C Control Module Data Exchange (CAN A) : Rear A/C Control Module In-Car Air Temperature Sensor (B10/4) In-Car Air Temperature Sensor (B10/4) In-Car Air Temperature Sensor (B10/4) In-Car Air Temperature Sensor (B10/4) Left Heater Core Temperature Sensor (B10/2) Left Heater Core Temperature Sensor (B10/2) Left Heater Core Temperature Sensor (B10/2) Left Heater Core Temperature Sensor (B10/2) Right Heater Core Temperature Sensor (B10/3) Right Heater Core Temperature Sensor (B10/3) Right Heater Core Temperature Sensor (B10/3) Right Heater Core Temperature Sensor (B10/3) Outside Air Temperature Sensor (B10/5) Outside Air Temperature Sensor (B10/5) Outside Air Temperature Sensor (B10/5) Outside Air Temperature Sensor (B10/5) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (B10/8) Engine Coolant Temperature Sensor (B10/8) Engine Coolant Temperature Sensor (B10/8) Open Circuit.A/C SELF DIAGNOSTIC SYSTEMS .1990-97 FAULT CODES .com . Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Open Circuit. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Short Circuit. Open Circuit.140 Chassis to 8/95 DTC Readout 001 002 003 006 007 008 009 010 011 012 013 014 015 016 017 018 019 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 Description No DTC's Stored in System Memory. Open Circuit. Short Circuit. Short Circuit. Cause Fault Type 82 Baum Tools Unlim ited Inc. A/C SELF DIAGNOSTIC SYSTEMS . 1ST Stage Activation Auxiliary Fan. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. 1ST Stage Activation Auxiliary Fan.1990-97 FAULT CODES .140 Chassis to 8/95 DTC Readout 043 044 045 046 047 048 049 050 051 052 053 054 055 072 073 074 075 076 077 080 081 082 083 084 085 086 087 088 089 090 091 096 097 098 099 100 Description Engine Coolant Temperature Sensor (B10/8) Refrigerant Pressure Sensor (B12) Refrigerant Pressure Sensor (B12) Refrigerant Pressure Sensor (B12) Refrigerant Pressure Sensor (B12) Left Temperature Wheel Left Temperature Wheel Left Temperature Wheel Left Temperature Wheel Right Temperature Wheel Right Temperature Wheel Right Temperature Wheel Right Temperature Wheel Heater Supply Unit Coolant Circulation Pump (A31m1) Heater Supply Unit Coolant Circulation Pump (A31m1) Coolant Circulation Pump (A31m1) Coolant Circulation Pump (A31m1) Coolant Circulation Pump (A31m1) Coolant Circulation Pump (A31m1) Left Duovalve (Water Valve) (A31y1) Left Duovalve (Water Valve) (A31y1) Left Duovalve (Water Valve) (A31y1) Left Duovalve (Water Valve) (A31y1) Right Duovalve (Water Valve) (A31y2) Right Duovalve (Water Valve) (A31y2) Right Duovalve (Water Valve) (A31y2) Right Duovalve (Water Valve) (A31y2) A/C Compressor Ground Activation A/C Compressor Ground Activation A/C Compressor Ground Activation A/C Compressor Ground Activation Auxiliary Fan. 2ND Stage Activation Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Cause Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Overload Overload Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Fault Type Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Baum Tools Unlim ited Inc. 1ST Stage Activation Auxiliary Fan.com 83 . 1ST Stage Activation Auxiliary Fan. 3RD Stage Activation Auxiliary Fan. 3RD Stage Activation Auxiliary Fan. 3RD Stage Activation Auxiliary Coolant Pump Control Relay Module (K30).A/C SELF DIAGNOSTIC SYSTEMS .1990-97 FAULT CODES . Power Supply Engine RPM Increase Diode Matrix (V2) Engine RPM Increase Diode Matrix (V2) Engine RPM Increase Diode Matrix (V2) Engine RPM Increase Diode Matrix (V2) Activated Charcoal Filter Actuator (A32m2) : (OPEN) Activated Charcoal Filter Actuator (A32m2) : (OPEN) Activated Charcoal Filter Actuator (A32m2) : (OPEN) Activated Charcoal Filter Actuator (A32m2) : (OPEN) Activated Charcoal Filter Actuator (A32m2) : (CLOSED) Activated Charcoal Filter Actuator (A32m2) : (CLOSED) Activated Charcoal Filter Actuator (A32m2) : (CLOSED) Activated Charcoal Filter Actuator (A32m2) : (CLOSED) Left Rear Heater Core Temperature Sensor (B10/9) Left Rear Heater Core Temperature Sensor (B10/9) Left Rear Heater Core Temperature Sensor (B10/9) Left Rear Heater Core Temperature Sensor (B10/9) Right Rear Heater Core Temperature Sensor (B10/10) Right Rear Heater Core Temperature Sensor (B10/10) Right Rear Heater Core Temperature Sensor (B10/10) Right Rear Heater Core Temperature Sensor (B10/10) Left Temperature Selector wheel Left Temperature Selector wheel Left Temperature Selector wheel Cause Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Fault Type Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Baum Tools Unlim ited Inc. Power Supply Auxiliary Coolant Pump Control Relay Module (K30). Power Supply Auxiliary Coolant Pump Control Relay Module (K30). 2ND Stage Activation Auxiliary Fan.com . 2ND Stage Activation Auxiliary Fan. 2ND Stage Activation Auxiliary Fan.140 Chassis to 8/95 DTC Readout 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 128 129 130 131 132 133 134 135 136 137 138 84 Description Auxiliary Fan. 3RD Stage Activation Auxiliary Fan. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Power Supply Auxiliary Coolant Pump Control Relay Module (K30). A/C SELF DIAGNOSTIC SYSTEMS .1990-97 FAULT CODES .com 85 .140 Chassis to 8/95 DTC Readout 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 Description Left Temperature Selector wheel Right Temperature Selector wheel Right Temperature Selector wheel Right Temperature Selector wheel Right Temperature Selector wheel Rear Evaporator Temperature Sensor (B10/11) Rear Evaporator Temperature Sensor (B10/11) Rear Evaporator Temperature Sensor (B10/11) Rear Evaporator Temperature Sensor (B10/11) Coolant Circulation Pump (A31/1m1) Coolant Circulation Pump (A31/1m1) Coolant Circulation Pump (A31/1m1) Coolant Circulation Pump (A31/1m1) Coolant Circulation Pump (A31/1m1) Coolant Circulation Pump (A31/1m1) Left Duovalve (Water Valve) (A31/1y1) Left Duovalve (Water Valve) (A31/1y1) Left Duovalve (Water Valve) (A31/1y1) Left Duovalve (Water Valve) (A31/1y1) Right Duovalve (Water Valve) (A31/1y2) Right Duovalve (Water Valve) (A31/1y2) Right Duovalve (Water Valve) (A31/1y2) Right Duovalve (Water Valve) (A31/1y2) Rear Refrigerant Shut-Off Valve (Y67) Rear Refrigerant Shut-Off Valve (Y67) Rear Refrigerant Shut-Off Valve (Y67) Rear Refrigerant Shut-Off Valve (Y67) Rear Tunnel Flap Vacuum Valve (Y67/1) Rear Tunnel Flap Vacuum Valve (Y67/1) Rear Tunnel Flap Vacuum Valve (Y67/1) Rear Tunnel Flap Vacuum Valve (Y67/1) Cause Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Overload Overload Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Short Circuit Short Circuit Short or Open Circuit Short or Open Circuit Fault Type Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Baum Tools Unlim ited Inc. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Press the AUTO button and the next component number and its value will be displayed. 5. COMPONENT UNDER TEST Number 01 02 03 04 05 06 07 08 10 11 12 20 21 22 23 24 30 31 32 33 34 35 38 39 40 41 42 43 Component In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Temperature Sensor (B10/5) 1996.8 Volt Left Rear Heater Core Temperature Sensor (B10/9) Right Rear Heater Core Temperature sensor (B10/10) Rear Evaporator Temperature Sensor (B10/11) Rear Blower Control Voltage Left Rear Temperature Sensor version Right Rear Temperature Sensor Rear A/C Controller Software Version Coding Rear A/C Controller Hardware Version Front A/C Controller Software Version Coding Front A/C Controller Hardware Version Variant code 1 Variant code 2 86 Baum Tools Unlim ited Inc. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools..1990-97 140 Chassis from 9/95 READING ACTUAL VALUES 1. 7. The left display will alternately show the number "1" and the in-car temperature. example 00.8 = 12. Press the REST button to end the test program. (B14) as of 1997 Left Heater Core Temperature Sensor (B10/2) Right Heater Core Temperature Sensor (B10/3) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature (ECT) Sensor (A/C) (B11/4) Refrigerant Pressure in Bar Refrigerant Temperature Sensor (B12/1) Blower Control Voltage Emissions (Refrigerant Leak) Sensor (B31) Sun (Excessive Heat) Sensor (B32) Control Current for Auxiliary Fan example : 7 = 7 mA Engine RPM.99 (x100) = 9900 Vehicle Speed PIN 58D example. 6. Press the AUTO button 3. Press the REST button for more than 5 seconds. IGNITION : Position 1 2.0 = 99% of Battery Voltage Battery Voltage : 12. Set both temperature selectors to 72 degrees F.com . 4. 99.A/C SELF DIAGNOSTIC SYSTEMS . Within 20 seconds press the REST and EC buttons simultaneously for more than 5 seconds. IGNITION : Position 1 2. 8.com 87 . Left Temperature selector wheel : HI Right Temperature selector wheel : LO 3. The erase can be canceled by pressing the AUTO button. 4. To erase all codes must be read out. (B14) as of 1997 Left Heater Core Temperature Sensor (B10/2) Right Heater Core Temperature Sensor (B10/3) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (B11/4) or DFI or IFI models Right Engine Coolant Temperature Sensor (B11/10) to 1996 Refrigerant Pressure Sensor (B12) Refrigerant Temperature Sensor (B12/1) Sun Sensor (B32) Emissions (Refrigerant Leak) Sensor (B31) Refrigerant Level Coolant Circulation Pump (A31m1) Left Duovalve (Water Valve) (Y21y1) Right Duovalve (Water Valve) (Y21y2) A/C Compressor Electromagnetic Clutch (A9k1) Closed (Idle) Throttle Speed Increase Pulse Module (N65) Serial Interface Connection (K1) to Instrument Cluster (IC) Switchover Valve Block (Y11) Activated Charcoal Filter Actuator (A32m2) : OPEN Activated Charcoal Filter Actuator (A32m2) : CLOSE 232 233 234 235 241 416 417 418 419 420 421 422 423 424 425 Baum Tools Unlim ited Inc. "d" will be displayed on the left and "FF" is displayed on the right. 6. Press both AUTO buttons simultaneously for more than 2 seconds. The LED in the RECIRCULATE button flashes and "OFF" appears on the display.140 Chassis from 9/95 DTC Readout 026 226 227 228 229 230 231 Description CAN Bus Communication In-Car Air Temperature Sensor (B10/4) Outside Air Temperature Sensor (B10/5) to 1996.1990-97 140 Chassis from 9/95 FAULT DIAGNOSIS 1. Reset temperature selector to normal setting. IGNITION : OFF to end the test program. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. 5. Press the right AUTO button until all DTC's are displayed and recorded. 7.A/C SELF DIAGNOSTIC SYSTEMS . FAULT CODES . Diesel Engine Only 88 Baum Tools Unlim ited Inc.Center Air Outlet "Warm" LED .com .A/C SELF DIAGNOSTIC SYSTEMS . 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools.140 Chassis from 9/95 DTC Readout 432 459 460 461 462 Description Maximum Heat Serial Interface Connection (K2) to Instrument Cluster (IC) LED .Center Air Outlet "Cold" Wide Open Throttle (WOT) Position Signal .1990-97 FAULT CODES . "En d" is displayed. Press the "Top Air Outlet" button to increase the component tested and the "Bottom Air Outlet" button to decrease the component number tested. 3. "En d" is displayed. COMPONENT UNDER TEST Number 01 02 03 05 06 07 08 09 15 20 21 22 23 50 51 52 Component In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Temperature Sensor (B10/5) Heater Core Temperature Sensor (B10/1) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature (ECT) Sensor (A/C) (B10/8) Refrigerant Pressure in Bar Blower Control Voltage Software Status of A/C Pushbutton Control Module Selected In-Car Temperature Version Code Engine Speed in RPM A/C Compressor Speed in RPM Vehicle Speed in km/h Not Used Number of Current Poly-V Belt Slip Recognitions Number of Stored Poly-V Belt Slip Recognitions 202 Chassis to 8/95 FAULT DIAGNOSIS 1 IGNITION : Position 2 (ON) 2 Press the V button until "LO" appears on the display. Press the AUTO button. Continuous faults are displayed first. Press AUTO again to retrieve intermittent faults. Press the REST button to end the test program. if no faults are stored. 3 Within 20 seconds press the REST and DEFROST buttons simultaneously for more then 2 seconds. 6. Set temperature selection to 72 degrees F (Press v and ^ simultaneously). Press the REST button for more than 5 seconds.1990-97 202 Chassis to 8/95 READING ACTUAL VALUES 1. 6 Press the AUTO button until "dE L" is displayed. If no intermittent faults are stored. 4 The LED in the RECIRCULATE button flashes and "dI R" appears on the display 5 Press the AUTO button until all DTC's are displayed and recorded. To erase codes press both V and ^ simultaneously for at least 5 seconds. The display will alternately show the number "01" and the in-car temperature or "LO" if there is an open circuit or "HI" if there is a short circuit. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. 5. 7.A/C SELF DIAGNOSTIC SYSTEMS . IGNITION : Position 2 (ON) 2. Go to next page for Fault Codes.com 89 . 4. Baum Tools Unlim ited Inc. The display will show "---" 7 IGNITION : OFF to end the test program. 1990-97 FAULT CODES . 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools.A/C SELF DIAGNOSTIC SYSTEMS . In-Car Temperature Sensor with Aspirator Blower (B10/4) In Car Temperature Sensor with Aspirator Blower (B10/4) In-Car Temperature Sensor with Aspirator Blower (B10/4) In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Air Temperature Sensor (B10/5) Outside Air Temperature Sensor (B10/5) Outside air Temperature Sensor (B10/5) Outside air Temperature Sensor (B10/5) Heater Core Temperature Sensor (B10/1) Heater Core Temperature Sensor (B10/1) Heater Core Temperature Sensor (B10/1) Heater Core Temperature Sensor (B10/1) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (ETC) (B10/8) Engine Coolant Temperature Sensor (ETC) (B10/8) Engine Coolant Temperature Sensor (ETC) (B10/8) Engine Coolant Temperature Sensor (ETC) (B10/8) Refrigerant Pressure Sensor (B12) Refrigerant Pressure Sensor (B12) Refrigerant Pressure Sensor (B12) Refrigerant Pressure Sensor (B12) A/C Compressor RPM Sensor (A9l1) Poly-V Belt Slip Recognition Auxiliary Coolant Pump (M13) Auxiliary Coolant Pump (M13) Auxiliary Coolant Pump (M13) Auxiliary Coolant Pump (M13) Duovalve (Water Valve) (Y21) Duovalve (Water Valve) (Y21) Duovalve (Water Valve) (Y21) Duovalve (Water Valve) (Y21) Cause No Faults Power failure or damaged computer Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Bad Sensor Slipping Belt Unknown Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Fault Type Baum Tools Unlim ited Inc.202 Chassis to 8/95 DTC Readout 01 02 03 04 05 06 07 08 09 10 11 12 13 14 19 20 21 22 23 24 25 26 27 28 29 30 31 32 47 48 49 50 51 52 53 54 90 Description No ERROR Stored A/C Pushbutton Control Module (N22).com . Tempering Flap Switchover Valve Block (Y11/3). Diverter Flap Switchover Valve Block (Y11/3).1990-97 FAULT CODES . Tempering Flap Switchover Valve Block (Y11/3). Fresh/Recirculating Air Flap Short Stroke (20%) Switchover Valve Block (Y11/3). Fresh/Recirculating Air Flap Short Stroke (20%) Switchover Valve Block (Y11/3). Fresh/Recirculating Air Flap Long Stroke (80%) Switchover Valve Block (Y11/3).com 91 . Fresh/Recirculating Air Flap Long Stroke (80%) Switchover Valve Block (Y11/3). Fresh/Recirculating Air Flap Short Stroke (20%) Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Cause Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short circuit Short circuit Fault Type Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Baum Tools Unlim ited Inc. Fresh/Recirculating Air Flap Long Stroke (80%) Switchover Valve Block (Y11/3). 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Tempering Flap Switchover Valve Block (Y11/3).A/C SELF DIAGNOSTIC SYSTEMS . Fresh/Recirculating Air Flap Switchover Valve Block (Y11/3). Diverter Flap Switchover Valve Block (Y11/3). Tempering Flap Switchover Valve Block (Y11/3). Fresh/Recirculating Air Flap Short Stroke (20%) Switchover Valve Block (Y11/3).202 Chassis to 8/95 DTC Readout 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 Description A/C Compressor Electromagnetic Clutch (A9k1) A/C Compressor Electromagnetic Clutch (A9k1) A/C Compressor Electromagnetic Clutch (A9k1) A/C Compressor Electromagnetic Clutch (A9k1) Activation of Auxiliary Fan Stage 1 Activation of Auxiliary Fan Stage 1 Activation of Auxiliary Fan Stage 1 Activation of Auxiliary Fan Stage 1 Activation of Auxiliary Fan Stage 2 Activation of Auxiliary Fan Stage 2 Activation of Auxiliary Fan Stage 2 Activation of Auxiliary Fan Stage 2 Closed (Idle) Throttle Speed Increase Closed (Idle) Throttle Speed Increase Closed (Idle) Throttle Speed Increase Closed (Idle) Throttle Speed Increase Switchover Valve Block (Y11/3). Diverter Flap Switchover Valve Block (Y11/3). Diverter Flap Switchover Valve Block (Y11/3). com .202 Chassis to 8/95 DTC Readout 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 Description Switchover Valve Block (Y11/3). Defroster Flap Short Stroke (20%) Switchover Valve Block (Y11/3). Defroster Flap Short Stroke (20%) Switchover Valve Block (Y11/3).1990-97 FAULT CODES . Defroster Flap Long Stroke (80%) Switchover Valve Block (Y11/3). 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Footwell Flap Short Stroke (20%) Switchover Valve Block (Y11/3).A/C SELF DIAGNOSTIC SYSTEMS . Defroster Flap Long Stroke (80%) Switchover Valve Block (Y11/3). Footwell Flap Long Stroke (80%) Short or Open circuit Switchover Valve Block (Y11/3). Defroster Flap Short Stroke (20%) Switchover Valve Block (Y11/3). Defroster Flap Long Stroke (80%) Switchover Valve Block (Y11/3). Footwell Flap Long Stroke (80%) Switchover Valve Block (Y11/3). Footwell Flap Long Stroke (80%) Switchover Valve Block (Y11/3). Defroster Flap Long Stroke (80%) Switchover Valve Block (Y11/3). Footwell Flap Short Stroke (20%) Switchover Valve Block (Y11/3). Defroster Flap Short Stroke (20%) Switchover Valve Block (Y11/3). Footwell Flap Short Stroke (20%) Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Short or Open circuit Cause Fault Type Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent Continuous Intermittent 92 Baum Tools Unlim ited Inc. Footwell Flap Long Stroke (80%) Short or Open circuit Switchover Valve Block (Y11/3). Footwell Flap Short Stroke (20%) Switchover Valve Block (Y11/3). 99 (x100) = 9900 Vehicle Speed PIN 58D exp.1990-97 202 Chassis from 9/95 READING ACTUAL VALUES 1. 5.A/C SELF DIAGNOSTIC SYSTEMS . 99.0 = 99% of Battery Voltage Battery Voltage : 12.com 93 . Press the FAN button and the next component number and its value will be displayed. IGNITION : Position 1 2. COMPONENT UNDER TEST Number 01 02 03 05 06 07 08 09 10 20 21 22 23 24 40 41 42 43 50 51 52 54 Component In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Temperature Sensor (B14) Heater Core Temperature Sensor (B10/1) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (ECT) (B11/4) Refrigerant Pressure in Bar Refrigerant Temperature Sensor (B12/1) Not Used Blower Control Voltage Control Current for Auxiliary Fan exp. Press the REST button to end the test program.. Baum Tools Unlim ited Inc. 3. Press the REST button for more than 6 seconds. : 7 = 7 mA Engine RPM. 4. example 00. 6.8 Volt A/C Controller Software Version Coding A/C Controller Hardware Version Variant code 1 Variant code 2 Not Used Not Used Not Used ON/OFF A/C Compressor emergency off signal from engine control module. The left display will alternately show the number "01" and the in-car temperature. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Set temperature selector to 72 degrees F.8 = 12. Diesel Engine Only 94 Baum Tools Unlim ited Inc.202 Chassis from 9/95 DTC Readout 026 226 227 228 230 231 232 233 241 416 417 418 419 420 421 422 451 452 453 454 455 456 457 458 459 462 Description CAN Bus Communication In-Car Air Temperature Sensor (B10/4) Outside Air Temperature Sensor (B14) Heater Core Temperature Sensor (B10/1) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (B11/4) Refrigerant Pressure Sensor (B12) Refrigerant Temperature Sensor (B12/1) Refrigerant Level Coolant Circulation Pump (A31m1) Left Duovalve (Water Valve) (Y21y1) Right Duovalve (Water Valve) (Y21y2) A/C Compressor Electromagnetic Clutch (A9k1) Closed (Idle) Throttle Speed Increase Pulse Module (N65) Serial Interface Connection (K1) to Instrument Cluster (IC) Diverter Flap (Y11/3) Blend Air Flap (Y11/3) Fresh/Recirculated Air Flap (Y11/3) Long Stroke Fresh/Recirculated Air Flap (Y11/3) Short Stroke Defroster Outlet Flap (Y11/3) Long Stroke Defroster Outlet Flap (Y11/3) Short Stroke Footwell Flap (Y11/3) Long Stroke Footwell Flap (Y11/3) Short Stroke Serial Interface Connection (K2) to Instrument Cluster (IC) Wide Open Throttle (WOT) Position Signal . The current faults are displayed first. then the intermittent faults. IGNITION : Position 1 2. The display will then show "---". IGNITION : OFF to end the test program. 4. The LED in the RECIRCULATE button flashes and "dI A" appears on the display. Temperature selector wheel : "LO" 3.A/C SELF DIAGNOSTIC SYSTEMS . Press AUTO to cancel the erase.com . 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. To erase codes press v and ^ simultaneously for more than 5 seconds. 8. FAULT CODES .1990-97 202 Chassis from 9/95 FAULT DIAGNOSIS 1. Within 20 seconds press the REST and DEFROST buttons simultaneously for more than 5 seconds. Press the AUTO button until all DTC's are displayed and recorded. 6. 5. 7. "END'" is displayed when all codes have been displayed. 4. Set both temperature selectors to 72 degrees F. 6. Press the REST button for more than 5 seconds.8 Volt Software Version Encoded Hardware Version Baum Tools Unlim ited Inc. example 00. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Press the AUTO button 3.0 = 99% of Battery Voltage Battery Voltage : 12. COMPONENT UNDER TEST Number 01 02 03 04 05 06 07 08 10 11 12 20 21 22 23 24 40 41 Component In-Car Temperature Sensor with Aspirator Blower (B10/4) Outside Temperature Sensor (B14) Left Heater Core Temperature Sensor (B10/1) Right Heater Core Temperature Sensor (B10/1) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature (ECT) Sensor (A/C) (B1/4) Refrigerant Pressure in Bar Refrigerant Temperature Sensor (B12/1) Blower Control Voltage Emissions (Refrigerant Leak) Sensor (B31) Sun (Excessive Heat) Sensor (B32) Control Current for Auxiliary Fan exp. 99.8 = 12. 5. 7..99 (x100) = 9900 Vehicle Speed PIN 58D exp. : 7 = 7 mA Engine RPM.1990-97 210 Chassis from 9/95 READING ACTUAL VALUES 1.A/C SELF DIAGNOSTIC SYSTEMS .com 95 . Press the REST button to end the test program. Press the AUTO button and the next component number and its value will be displayed. The left display will alternately show the number "1" and the in-car temperature. IGNITION : Position 1 2. 6.Diesel Engine Only 96 Baum Tools Unlim ited Inc.1990-97 210 Chassis from 9/95 FAULT DIAGNOSIS 1. Left Temperature selector wheel : HI Right Temperature selector wheel : LO 3. The LED in the RECIRCULATE button flashes and "dI R" appears on the display 5. 4. Reset temperature selector to normal setting. IGNITION : Position 1 2.Communication In-Car Air Temperature Sensor (B10/4) Outside Air Temperature Sensor (B14) Left Heater Core Temperature Sensor (B10/1) Right Heater Core Temperature Sensor (B10/1) Evaporator Temperature Sensor (B10/6) Engine Coolant Temperature Sensor (B10/8) Refrigerant Pressure Sensor (B12) Refrigerant Temperature Sensor (B12/1) Sun Sensor (B32) Emissions (Refrigerant Leak) Sensor (B31) Refrigerant Level Coolant Circulation Pump (M13) Left Duovalve (Water Valve) (Y21y1) Right Duovalve (Water Valve) (Y21y2) A/C Compressor Electromagnetic Clutch (A9k1) Closed (Idle) Throttle Speed Increase Pulse Module Serial Interface Connection (K1) to Instrument Cluster (IC) Switchover Valve Block (Y11) Activated Charcoal Filter Actuator (A32m2) : OPEN Activated Charcoal Filter Actuator (A32m2) : CLOSE Maximum Heat Serial Interface Connection (K2) to Instrument Cluster (IC) Wide Open Throttle (WOT) Position Signal . To erase. Within 20 seconds press the REST and EC buttons simultaneously for more than 5 seconds. IGNITION : OFF to end the test program. The erase can be canceled by pressing the AUTO. 7. Press both AUTO buttons simultaneously for more than 2 seconds. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. FAULT CODES .A/C SELF DIAGNOSTIC SYSTEMS .com . all codes must be read out. "d" will be displayed on the left and "FF" is displayed on the right.210 Chassis from 9/95 DTC Readout 026 226 227 228 229 230 231 232 233 234 235 241 416 417 418 419 420 421 422 423 424 425 432 459 462 Description CAN . 8. Press the right AUTO button until all DTC's are displayed and recorded. com 97 .MERCEDES-BENZ ACRONYMS ACRONYM 4MATIC A/C (Automatic)* A/C (Tempmatic)* AAC AAM AB ABS ACSR ADM ADS AIR AKR AP APS AS ASD ASR AT ATA* BA BARO BCAPC BDC BM* BPC CA CAN CC* CCM CDC CF CFI CKA CKP CL CLUS CMP CNS CST* CTEL CTP CTU DAS DFI* DI* DM (USA) DTC EA* EAG EATC* EBR ECL ECT EDC EDR EDS EDW* EFP* EGR EGS EI EIFI DESCRIPTION 4 Wheel Drive Transmission Control Air Conditioning (Automatic) Air Conditioning (Tempmatic) Automatic Air Conditioning All Activity Module Supplemental Restraint System (Airbag) Anti-lock Brake System Automatic Child Seat Recognition Automatic Dimming Inside Rearview Mirror Automatic Damping System (Suspension) Secondary Air Injection Anti-Knock Regulation Accelerator Pedal Auto Pilot System Antenna System Automatic Locking Differential Acceleration Slip Regulation Automatic Transmission Anti-theft Alarm System Backup Assist Barometric Pressure Barometric Pressure-charge Air Pressure Compensation Bottom Dead Center Base Module (Master Ecu Controller) Barometric Pressure Compensation Closing Assist Controller Area Network Cruise Control (Tempomat) Combination Control Module Cd Changer Convenience Feature Continuous Fuel Injection Crank Angle Crankshaft Position Central Locking Instrument Cluster Camshaft Position Communication and Navigation System Cabriolet Soft Top Cellular Telephone Closed Throttle Position (Idle) Central Triggering Unit Driver Authorization System Electronic Distributor-type Fuel Injection Distributor Ignition System Diagnostic Module (Emissions) Diagnostic Trouble Code Electronic Accelerator Electronic Automatic Transmission Control Electronic Automatic Transmission Control Engine Brake Regulation Engine Coolant Level Engine Coolant Temperature Electronic Diesel Control Electronic Diesel Regulation Electronic Diesel System Anti-theft Alarm System Electronic Accelerator Exhaust Gas Recirculation Electronic Transmission Control Electronic Ignition (distributorless) Electronic In-line Fuel Injection Baum Tools Unlim ited Inc. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools. Steering Column Adjustment. Steering Column Adjustment. Heated Mirrors Manual Transmission Manifold Vacuum Assist Main Wiring Harness Network System (CAN) Oxygen (O2) Sensor On-board Diagnostics Oxidation Catalytic Convertor Baum Tools Unlim ited Inc.com . Heated Mirrors Electronic Power Control Electronic In-line Fuel System Electric Seat Adjustment Electric Steering Column Adjustment Engine System Control Module Electronic Stability Program Electronic Transmission Control Emergency Tensioning Retractor Electronic Traction System Evaporative Emission Control System Electronic Distributor-type Fuel Injection Distributor Ignition System Fanfare Horns Frame Floor System Folding Outside Mirrors Fuel Pump Governor Impulse Method Base Module (Master Ecu Controller) Automatic Heater Headlamp Cleaning System Automatic Heater Hot Film Engine Management Hands Free System Hand Held Tester Heated Mirrors Horn Signal System Heated Seats Intake Air Temperature Instrument Cluster In Dash Controller Electronic In-line Fuel System(diesel) Infrared Remote Central Locking Interior Lighting Infrared Infrared Remote Central Locking Inside Rearview Mirror Idle Speed Control Continuous Injection System (Cis) Convenience Feature Instrument Cluster Air Conditioning Knock Sensor Knock Sensor System LH Sequential Fuel Management Bank 1 (1-6 or 1-8 Cylinders) LH Sequential Fuel Management Bank 2 (7-12 Cylinders) Left Hand Steering Cruise Control Low Compression Loudspeaker System Mass Air Flow Manifold Absolute Pressure Motor Electronics Malfunction Indicator Lamp (Check Engine) Mirror. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools.MERCEDES-BENZ ACRONYMS EL EMSC EPC ERE* ESA ESC ESCM ESP ETC ETR ETS EVAP EVE EZL FAN FFS FOM FP GIM GM HAU HCS HEAT HFM HFS HHT HM HORN HS IAT IC IDC IFI* IFZ IL IR IRCL* IRM ISC* KE KFB KI KLA KS KSS LH LH2 LHS LLR LOC LS MAF MAP ME MIL MSC MT MVA MWH NS O2S OBD OC 98 Exterior Lighting Electric Mirror. MERCEDES-BENZ ACRONYMS OCP ORM OSB PL PML PMP PNP PS PSE PTS PW PWM RB* RCL RD REST RHR RHS RPM RST* RTG RTR RV RWD SBE SLO SMS SOR SPS SR SRS STH TB TC TCM TD TDC TIC TN TPC TRAP TS TVV TWC ÜRB VAF VSS WOT WS * USA Acronym only. 941-927-1414 / Technical Support 800-804-1002 or tech@ baum tools.com 99 . Over-head Control Panel Outside Rearview Mirror Orthopedic Seat Backrest Power Lock Speed-sensitive Power Steering Partial Intake Manifold Preheater Park/neutral Position Power Steering Pneumatic System Equipment Parktronic System Power Windows Pulse Width Modulation Roll Bar Control Remote Central Locking Radio Residual Engine Heat Utilization Retractable Rear Head Restraints Rear Heated Seats Revolutions Per Minute (Engine Speed) Roadster Soft Top Retractable Trunk Lid Grip Remote Trunk Release Roadster Soft Top Rear Window Defroster Seat Belt Extender Starter Lock-out Service Microfiche System Seat Occupied recognition Speed-sensitive Power Steering Sliding/Pop-up Roof Supplemental Restraint System (Airbag) Stationary Heater Throttle Body Turbo Charger Transmission Control Module Speed Signal (Time Division) (EZL) Top Dead Center Transistorized Ignition Control Speed Signal (EZL/AKR) Tire Pressure Control Trap Oxidizer Towing Sensor Tank Ventilation Valve Three Way Catalytic Convertor Roll Bar Control Volume Air Flow Vehicle Speed Signal Wide Open Throttle (Full Load) Wiper System Baum Tools Unlim ited Inc. 4 717.SB GA230SL 716/722.2 722.4 722.2 722.905 LO 1 765.912 180.028 201.4/722.983 KE 103.903 LO 1 765.903 765.4/722.3 190E 2.2 716/722.3-16v 190E 2.706 L1Z/765.015 115.126 201.706 765.017 111 113.432/722.924 601.1 GA220B 722.984 115.4 717.400 717.912 114.011 114.034 201E25 201.128 110 201.029 110 124.023 110 114.4/722.010 111 115.985 KE 102.1 722.983 KE 102.021 111 111 123.905 L1Z/LS75/765.4/722.9 765.1 716.123 114.920 180.023 111.6 200 200CE 200D 200E 200TE 220 220B 220D 220SB 220SE Cabriolet 220SE Coupe 220SEB 220SEB/C 230 230 230 230 230S 230SL 240D 240D 250 250 250C 250D 250S 250SE 250SE Cabriolet 250SE Coupe 1965-66 1967-72 1973-78 1965-68 1963-68 1973-75 1976-85 1967-69 1970-75 1969-75 1986-93 1963-68 1965-68 1965-68 1965-68 YEARS 1961-65 1984-85 1986-89 19871961-65 1982-86 1982-86 1987-93 1984-87 1988-93 1986-93 1965-68 1990-93 1965-68 1993 1988-92 1967-72 1959-65 1967-72 1959-65 1951-65 1959-65 1959-65 1951-65 CHASSIS 110 201.5-16v 190E 2.125 108 108 111.4/722.954 180.4 717.980 129.2 722.916 616.021 110 124.408 717.024 201.024 201.920 129.945 180.923 130.941 127.706 L1Z/LS75/765.1 GA220B.945 127.5 TURBO 190DC 190E 2.042 115.0.984 127.905 765.4/722.USA MODEL IDENTIFIER M ODEL 190C 190D 2.400 GA190DC 717.5 190D 2.117 123.2/722.961 621.706 L1Z/LS75/765. KE 115.706 LO 1 LO 1 LO 1 LO 1 LO 1 765.984 127.3 190E 2.1 GA230 722..023 111.951 180.980 TRANSM ISSION GA190C 717.923 602.021 115.961 K 102.981 616.414 GA230SL GA230SL GA230SL GA230SL STEERING LO 1 LO75Z/68 LS68 LS68 LO 1 LS68 LS68 765.942 KE 121.904 LO 1 LO 1 LO 1 LO 1 100 Baum Tools Unlim ited Inc.706 LO 1 L1Z/LS75/765.940 615.912 102.409 GA190C 717.4/722. Toll Free 1-800-848-6657 .985 KE 102.021 ENGINE 121.921 602.2 GA220SB GA220SEB GA220SEB GA220SEB GA220SEB 722.4/722.4 GA190DC 717.911 602.110 111 111.706 LO 1 L1Z/LS75/765.940 102 KE 621.400 722.706 LO 1 LO 1 L1Z L1Z/765.4/722.980 129.920 130.023 124.963 KE 102.010 114.954 115.982 127.912 108.122 201.918 102.4 717.3 190E 2.MERCEDES BENZ .021 124.4 717.9 765.706 L1Z/LS75/765.2 190D 2.413/722. 1 LSC068/O068 L1Z/LS75/765.940 KE 103.1 722.028 124.5 280SL 300CD 300CD Turbo 300CE 300CE 300CE 300CE Cabriolet 300D 300D 300D 2.024 111.3/.1 722.153 124.3 717.2 716.940 765.940 DB Toll Free 1-800-848-6657 Baum Tools Unlim ited Inc.910 617.706 DB 765.342 722.502 GA300SE.706 765 765.0 L1K/LS75 LS75 LO 1 1971-72 108.026 114.706 765.980 117.5Turbo 300D Turbo 300D Turbo 300E 300E 300E 2.981 KE 104.133 124.984 K 110.3 717.068 113.367 722.019 722.904 L1Z 765.032 124.706 LS68 765 765.706 765.952 603.4/722.980 130.0 LS75 LO 1 LO 1 722.5 280SE Cabriolet 280SE Coupe 280SEL 280SEL 4.906 765.053 123.980 117.912 602.984 130.2 722.1 716/717/722.-E.-EH 765.706 765.044 1977-80 1982-85 1987-89 1990-92 1993-96 1993-96 1975 1976-85 1988-93 1982-85 19851985-92 1993-96 1985-92 1985-93 1987-93 1978-80 1981-85 1992-93 1985-88 1961-65 1985-92 1992-93 1961-67 123.1 722.-E.5 Cabriolet 280SE 3.706 L1Z/LS75/765.904 765.024 717.025 111.908 765.706 LO 1 LO 1 1971-72 108.960 103.351 722.961 189 103.020 108.052 124.120 140.026 124.983 KE 104.904 765 765.032 112 722.4 722.4/722.060 114.0/722.4/722.922 130.950 617.150 123.992 HFM 103.980 110. 101 .369 716/722.230 116.990 LH 189 TRANSM ISSION STEERING LO 1 1985-88 1972-76 1972-76 1977-85 1976-85 1967-72 1972-80 1967-72 1972-80 124.985 116.073 123.067 111.130 124.985 KE 617.984 K 130.912 617.M ODEL 250SL 260E 280 280C 280CE 280E 280S 280S 280SE 280SE 280SE 3.706 L1K/LS75 765.706 765.4/722.130 124.4 717.134 126.033 108.369 717.4/722.4 717.043 ENGINE 129.706 L1K/LS75 765.0/722.4 722.4/722.921 110.4/722.025 111.-EH 717.920 110.050 124.921 110.1 716.125 112 126.951 603.980 130.980 KE 104.8 300E 4M ATIC 300SD Turbo 300SD Turbo 300SD Turbo 300SDL Turbo 300SE 300SE 300SE 300SE/C YEARS CHASSIS 113.0/722.940 KE 110.2 716/722.1 717.016 116.018 116.024 108.5 Coupe 280SE 4.706 LS68 LSH068/C068 765.982 103.4 717.030 124.4 722.6 300E 2.120 126.369 717.706 765.971 603.128 123.3 722.4/722.1 716.1 716.3 GA300SE.992 HFM 104.4/722.983 KE 104.992 HFM 617.3/.4/722.984 130.1 722.983 617.3 717.952 103.980 116.962 617.942 KE 103.051 124.024 140.3 722.114 123.706 765.066 115.4/722.0/722. 369 717.032 116.3 722.907 765.981 189 103.135 126.985 KE 603.032 116.044 140.036 126.706 765.033 107.960 103.354 722.706 765.986 117.970 603.025 124.706 765.982 117.706 765.706 765.045 107.706 765.960 119.706 LS68 765.1 722.364 722.3 722.960 116.0 K4A050 722.193 124.981 KE 617.3 722.706 765.4/722.366 722.706 765.365 722.035 116.965 KE 119.056 109.319 722.042 140.033 107.706 765.350 DB 765.970 LH 119.706 Toll Free 1-800-848-6657 102 Baum Tools Unlim ited Inc.5 300SEL 6.706 765.3/.070 126.190 123.706 765.033 126.940 765.907 765.960 KE 119.706 765.907 765.061 123.025 109.0 722.986 117.193 124.045 GA300SE-EH 717.921 765.706 765.706 765.361 722.706 765.016 ENGINE 189 130.0 722.982 117.706 765.983 117. .975 LH 119.963 116.044 107.4/722.3 722.370 722.971 LH 116.067 126.051 129.290 126.5 300SEL 4.706 LS75 LS75 LS75 765.351 722.3 722.0 722.985 117.0 722.906 765.706 765.342 722.983 117.983 KE 103.940 LSG068 765.044 107.972 LH 117.0/722.134 126.033 116.4 722.3 300SL 300SL-24 300TD 300TD Turbo 300TD Turbo 300TE 300TE 4M ATIC 350SD Turbo 350SDL Turbo 380SE 380SEC 380SEL 380SEL 380SL 380SLC 400E 400SE 400SEL 420SEL 450SE 450SE 450SEL 450SEL 450SL 450SL 450SLC 450SLC 500E 500SEC 500SEC 500SEL 500SEL 500SL 500SL 560SEC YEARS 1965-72 CHASSIS 108 109.311 722.034 140.500 722.018 129.981 117.912 617.970 LH 117.904 765.092 124.970 116.963 KA 119.0 722.090/.2 722.974 LH 117.921 765.985 119.961 116.981 KE 116.3 722.361 722.3 722.706 765.981 100.M ODEL 300SEB 300SEL 300SEL 300SEL 300SEL 3.043 126.043 126.066 129.940 765.431/722.706 765.037 140.370 722.057 109.3 722.706 765.024 124.0 722.981 103 KE 104.356 722.0 722.971 LH 119.968 KE TRANSM ISSION GA300SE-EH STEERING DB 1966-68 1985-92 1969-72 1971-72 1967-72 1988-93 1990-92 1978-85 1981-84 19851985-93 1987-93 1989-6/91 1989-6/91 1985-89 19851980-84 1985-89 1980-89 1980-89 1990-93 1992-93 1992-93 1985-6/91 1972-73 1974-80 1972-73 1974-80 1971-74 1975-80 1971-74 1975-80 1993 -1992 1992-93 1985-91 1992-93 1990-92 1992-93 1985- 109 126.061 129.032 126.963 116.0 722.024 107.952 603.965 KE 117.3 717.500 716.983 116. 904 765.922 765.002 765.028 202.631 722.961 HFM 604.980 LH 120.960 M E 2.317 722.076 202.913 111.604 722.8 113.133 210.904 768.952 765.607 722.912 M E 2.365/465 208.0 113.975 M E 2.922 765.8 120.057 129.600 722.028 202.940 M E 2.920 M E-2.0 112.025 124.014 100.6 717.424 722.029 203.417/722.912 IFI 603.941 HFM 112.362 717.985 100.317 765.362 722.120 202.012 100 129.1 112.960 TRANSM ISSION 722.950 765.8 104.064 202.8 602 602 104.950/765.950 765.421 717.980 100 120.946 M E 2.0 113.950 765.982 M E 1 112.416/722.036 100.370/.375 215.910 EVE 111.907 765.981 LH 100.940 765.962 IFI 606.706 LS75 DB LSG068 LS75 LS75 765.941 HFM 104.6 STEERING 765.022 202.980 100.940 765.950 765.620 722.435 722.0 K4A050 GA600 722.944 M E 2.416/722.427 722.606 722.706 765.6 722.020 124.6 722.018 202.076 208.9 768.0 119.985 KE 606.012 765.1 111.039 116.003 765.968 KE 100.984 M E 2.131 124.940 765.426 722.M ODEL 560SEL 6.028 202.960 M E 2.033 140.600 716.230 210.076 100.6 722.4/722.941 HFM 113.604 722.950 765.024 203.910 603.960 606.922 765.980 LH 120.608 722.373 140.950 765.0 113.950 765.425 722.944/943 M E 2.952 - 722.423 717.362 722.023 202.433/722.070 215.6 / 722.0 113.4/722.193 ENGINE 117.4/722.121 202.906 768.950 765.028 202.950 765.416/722.8 605.974 M E 2.025 124.600 722.633 722.980 M E 1.342 722.028 124.125 202.982 M E 2.941 HFM 104.910 ERE 104.940 765.920 PM S 601.016 140.904 Toll Free 1-800-848-6657 Baum Tools Unlim ited Inc.470 208. 103 .981 LH 111.061 202.504 722.3 K4A050 K4A050 722.980 120.025 124.076 140.350 722.375 215.621 722.424 722.950 765.904 765.9 600 600 600 600 Long 4 Door 600 Long 6 Door 600SEC 600SEL 600SL C180 C200D C220 C220D C230 C230 C240 C250D C280 C280 C280 C320 C36AMG C36AMG C43 AMG CL500 (Coupe) CL500 (Coupe) CL500 (Coupe) CL500 AM G CL600 S600 CLK320 (Coupe/Cabrio) CLK430 (Coupe) CLK55 E250D E250D Turbo E280 E300 E300 Turbo Diesel E300D E300D TURBO E300D E300TD TURBO YEARS 19851975 196419641990-93 196419641992-93 1992-93 1990-93 199419941994-96 1994 1997-98 1999-2000 2001 1994 1994-96 19971998-99 2001 1996-97 1996-96 1998-99 1996-99 2000 200120011996-98 1998-01 1999-01 2001 1992-94 1988-95 1994-95 1994-95 1998-99 1994-95 1994-95 1997 1994-95 CHASSIS 126.374 124.942 HFM 103. 940 765.063 129.178 220.032 140.033 (Long) 140.623 722.662 722.941 M E 2.402 765.0 TRANSM ISSION 722.6 722.970 104.8 112.982 M E 1.940 765.940 765.605 722.0 113 M 2.068 ENGINE 104.0 137.1 104.940 765.036 210 210.367 722.99? M E 2.178 129.032/052 210.364 722.057 140.6 722.907 Toll Free 1-800-848-6657 104 Baum Tools Unlim ited Inc.370 722.994 HFM 104.1 163 140.921 768.980 LH 120.982 M E 1.940 765.0 113.995 HFM 104.0 119.M ODEL E320 E320 E320 E320 Sedan/4-m atic E320 W agon/4-m atic E320 Sedan/4-m atic E320 W agon/4-m atic E420 E420 E430 E430 Sedan/4-m atic E500 E55 AM G E55 AM G M L320 M L430 M L55 S320 S320 S320 S320 S350 Turbo Diesel S420 S420 S430 S430 S430 S500 (Coupe) S500 (Coupe) S500 S500 S500 S500 S600 S600 S600 S600 SL320 SL320 SL500 SL500 SL500 YEARS 1994-95 1996 1997 1998-99 1998-99 2001 2001 1994-95 1996-97 1998-99 2001 1994-95 1999 2001 1998-99 1999 2000 1994-96 1997-99 1996 1997-99 1994-95 1994-95 1996-99 1998-99 2000 2001 1994-95 1996-98 1994-95 1996-99 2000 2001 1994-95 1996-99 2000 2001 1994-96 1997 1994-95 1996-98 1999-01 CHASSIS 124.99? M E 2.985 M E 1.362 722.903 768.063 129.632 722.904 768.072 210.921 ZF.006 768.0 220.154 163.974 LH 113? M E 2.980 M E 2.065/082 210.6 722.070/083 124.961 M E 2.170 220.960 M E 2.605 722.623 722.074 163.070 140.995 M E 2.6 722.621 722.134 140.907 765.941 M E 2.070 140.402 ZF.0 113.991 HFM 119.1 112.0 113.043 140.0 120.002 768.034 210.6 722.941 M E 2.940 765.940 765.981 M E 1.067 129.970.003 768.940 765.366 722.0 113.0 113.0 104.942 113.508 722.265/282 210.605 722.940 765.002 768.170 140.265/282 124. M E 2.907 765.032 140.940 765.605 722.975 LH 119.972 LH 119.051 220. .940 765.0 113.970 M E 1.941 M E 2.0 112.620 722.980 M E 1.002 768.903 768.971 LH 119.0 113.3 722.070 210.175 220.971 119.607/664 722.1 603.6 722.0 112.995 M E 2.033 (Long) 140.8 119.970 LH 119.620/.8 112.940 765.043 140.0 113.6 722.940 M E 2.607/664 722.607/664 722.970.006 765.907 765.055 210.995 M E 2.992 HFM 104.8 120.8 119.175 140.002/765. M E 2.067 129.620 722.982 M E 1.057 220.507 722.6 722.051 140.991 HFM 104.370 722.8 119.970 LH 119.907 765.607/664 722.625 722.622 722.624 STEERING 765.960 M E 2.621 722.0 113.940 765.065/082 210.994 HFM 104.369 722.628 722.508 722.620 722.940 765.055 210.366 722.940 M E 2.605 722. 0 111.076 170.618 716. M E 2.951 Mercedes production is generally from July to June.362 722.981 LH 120.1 111.8 113.M ODEL SL600 SL600 SLK230 SLK230 SLK230 SLK320 SLK320 SLK430 YEARS 1994-95 1996-01 1998-99 2000 2001 2000 2001 1999 CHASSIS 129. This means that the 1994 model year has production dates 7/936/94.660 / 722.618 722.4 ENGINE 120.076 129.973 M E 2.465 170.8 112.907 765.447 170.983 M E 2.616 716.6 STEERING 765.973 M E 2.449 170.605 716.660 / 722.449 170.983 M E 1.465 170.983 M E 2.0 TRANSM ISSION 722.947 M E 2. Toll Free 1-800-848-6657 105 .662 / 722. Baum Tools Unlim ited Inc.662 / 722.1 111.907 765.0 112.621 722.616 716. . . Roadster Soft Top (RST). $176. 140. Central Locking (CL) S-2506-SET . 210 Volume 1 Base Module (BM). 170. . 120) S-2489-SET . 163. 208. These are no longer available. 140.M102. $662. . 163. Antenna Systems. 208.124. 126. 201. 201. .129.124.66 INFORMATION & COMMUNICATION . $340. Heated Seats (HS) Volume 5 Electric Seat Adjustment (ESA) Volume 5. 113. Continuous Fuel Injection System (CFI).1 Pneumatic System Equipment (PSE) Volume 2 Infrared Remote Central Locking System (IRCL) Volume 2. CD Changer. Speed-sensitive Power Steering (SPS). . 112. Cellular Telephone S-2416-SET . 163. . 103. . 116. ETS) and Speed-sensitive Power Steering (SPS) as of 6/94 production. . Electronic Automatic Transmission Control (ETC). 170. . 210) Volume 1 Diagnostic Equipment and Diagnostic Flow Charts Volume 2 HFM Sequential Multi-port Fuel Injection/Ignition System (HFM. 202.1 Anti-Theft Alarm System (ATA). 210 Volume 1 Air Conditioning and Heating. S-2493-SET . . 210 Volume 1 Exterior Lighting (EL). . . 129. Radio.25 * All Diagnostic Manuals include: Connection and Use of Test Equipment. 4MATIC Transmission Volume 3 Traction System (ASR. 117. . All manuals are currently available with the exception of Engine volume 2 section CIS-E and Distributor Ignition System (DIS). Distributor Ignition System (DIS) Volume 3 Electronic Accelerator (EA). 210 Volume 1 Instrument Cluster. 119. . Diagnostic Module (DM) Volume 4 ME Sequential Fuel Injection (ME-SFI) (Engines 104. 208. Anti-Lock Brake System (ABS). 208. 111. Adaptive Damping System (ADS) Volume 2 Automatic Locking Differential (ASD). 113. Combination Control Module (CCM) Volume 1. 106 Baum Tools Unlim ited Inc. 208. Emergency Tensioning Retractor (ETR) Volume 6 Seat Belt Extender (SBE). Cruise Control/Idle Speed Control (CC/ISC). . . Network Systems (NS) (CAN) Volume 3 Cabriolet Soft top (CST). Self Diagnostics S-2446-SET . . . .00 CLIMATE CONTROL . Acceleration Slip Regulation (ASR). 111. 129. 140.05 CHASSIS & DRIVE TRAIN . 129. $799. .00 BODY & ACCESSORIES . 202.124.1 Convenience Featured (CF).1 Airbag (AB). $189. 201. 170. . 202.SFI). 119. LH Sequential Multi-port Fuel Injection System (LH-SFI). 120 (Chassis 124. Toll Free 1-800-848-6657 . Vacuum Line Routing and Applicable Parts Locators. Roll Bar (RB) Volume 4 Electric Mirror. Troubleshooting Charts. .MERCEDES DIAGNOSTIC MANUALS 1990-00 ENGINE . 170. . Nominal Component and System Test Values. 129. 140. 126. 140. 202. . Waveform Samples. 163. Steering Column Adjustment. 170. 112. Closing Assist (CA). . 202. Fault Codes. Roll Bar (RB) Crash Deployment. 201. 163. . . Heated Mirrors (MSC) Volume 4. Loudspeaker System. . 104. . com Baum Tools Unlim ited Inc.Technical Support & Contact Information Technical Support Baum Tools Technical Support 800-804-1002 Voice 415-566-0694 Fax tech@baumtools. To order or request a listing call Baum Tools Unlimited Inc. http://www. Catalogs of tools for all models is available.com or [email protected] Manuals for most models are available from our Technical Publications division.baumtools. 800-848-6657 USA/Canada 941-927-1414 International 941-927-1612 Fax WebSIte Visit our website.com Email sales@baumtools. Toll Free 1-800-848-6657 107 .