CAN Fault Codes G04.03 Table of Contents System Overview Terms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501 Routed Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502 ECU Identification on Datalinks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503 ICU4M J1587 Datalink Roll Call Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504 Related Subjects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505 Troubleshooting CAN Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 700 Cascadia Troubleshooting Manual, September 2011 CAN Fault Codes G04.03 500 — Terms and Abbreviations CAN—Controller Area Network CGW—Central Gateway Communication Protocol—A set of rules governing communication between electronic devices. Datalink—A collection of wires, connecting system components, through which data is transmitted. Diagnostic CAN—Datalink that runs from the diagnostic connector to the CGW. Diagnostic Connector—A 9-pin diagnostic connector used for troubleshooting the electrical system. ECU—Electronic Control Unit, typically connected to a datalink. FMI—Failure Mode Indicator. The part of a J1587, J1939, and CAN fault code that identifies how part of a de- vice, or item on a device, failed. MID—Message Identifier MSF—Modular Switch Field Off-board tool—Typically refers to a PC-based application that communicates with the vehicle datalinks via a connection to the diagnostic connector. Parameter—A parameter is a specific value that is assigned to a feature or function of the vehicle, and allows the customer to choose how that particular feature or function will work on the vehicle. SA—Source Address; indicates numeric assignment for a device that communicates on J1939. SAE—Society of Automotive Engineers SAM—Signal Detect and Actuation Module SAM Cab—Signal Detect and Actuation Module Cab ("SAM Cabin"); this ECU controls mainly cab-related func- tionality. See G02.04 — SAM Cab for more information. SAM Chassis—Signal Detect and Actuation Module Chassis; this ECU controls mainly chassis-related function- ality. See G02.05 — SAM Chassis for more information. SID—Subsystem Identifier SPN—Suspect Parameter Number. The part of a J1939 or CAN fault code that identifies how part of a device, or item on a device, failed. 501 — General Information This subject contains a master list of all known CAN faults for the Cascadia. The CAN fault screen on Ser- viceLink is the only reliable place to find CAN fault information. Fault codes appearing on either the ICU or ServiceLink J1939/J1708 fault screens must be verified as faults from a J1939 or J1708 ECU, and not a "routed fault". A routed fault is a fault that the Central Gateway routed from another protocol to the ICU or the J1939 and J1708 fault screen. 502 — Routed Faults The Central Gateway (CGW) routes and translates messages between the J1939, J1708, Cabin CAN, and Diag- nostic CAN datalinks. Cascadia Troubleshooting Manual, September 2011 G04.03/1 • Interfaces between off-board tools and Cabin CAN ECUs. • On the Diagnostic CAN. It appears under the generic SID of "254". the Cabin CAN ECUs need information from J1939 or J1708 ECUs. Routing Active CAN Faults If a CAN ECU generates an active fault.03 CAN Fault Codes To verify whether a J1939 or J1708 fault is routed. for example. is SA 33.6kbps) SAM Cab Cabin CAN SAE J1939 (125kbps) (250kbps) 07/02/2007 f040759 Fig. and verifies that current protocol selected is the correct protocol to view for troubleshooting that fault or ECU. Select a different protocol until ECU faults appear in black text. and Vehicle Datalinks G04. In some cases. • On the Cabin CAN. Central Gateway. Seeing a fault in ServiceLink’s J1939 or J1708 fault screen in black text verifies that the fault is from a J1939 or J1708 ECU respectively. • J1708 displays up to one active fault for that CAN ECU under the MID for that CAN ECU. Diagnostic Connector. routed faults appear in grey text. J1939. September 2011 . 1. This is to alert the driver that the ECU has an active fault. Cabin CAN. The CGW has the following main functions: • Routes and translates messages between datalinks. Information sent by the J1939 or J1708 ECU is picked up by the CGW and passed to the appropriate Cabin CAN ECU. for display on the instrument cluster (ICU) message center. SAM Cab. When a CAN ECU generates an active fault: • J1939 displays up to one active fault for that CAN ECU under the J1939 source address for that CAN ECU. Accurate SPN and FMI information for that fault is also displayed. • Connect to ServiceLink.G04. the CGW is directly connected to the starpoint connector. and Diagnostic CAN). • Provides faults for any missing Cabin CAN ECUs. Accurate SID/PID or FMI information is not displayed for that fault. The CGW has the following wiring connections: • Each datalink on the vehicle (J1708. and the FMI may or may not be accurate. which does not have a direct connection to CAN. for example.03/2 Cascadia Troubleshooting Manual. perform one of the following steps: • Use Table 1 to confirm that the ECU MID is for an ECU that is physically connected to J1939 or J1708. the CGW has a direct connection to the diagnostic connector. is MID 249. the CGW will route up to one active fault for that ECU on to J1939 or J1708. Diagnostic CAN Central Gateway (500kbps) SAE J1939−13 SAE J1708 9−Pin connector (9. The reverse oc- curs when a J1939 or J1708 ECU needs information from a CAN ECU. In ServiceLink. SAM Cab. This alerts the driver that the ECU has an active fault. For more information regarding message routing behavior by the CGW. Qualcomm — 75* 181* — Lane Guidance — 232* — — Cascadia Troubleshooting Manual. CGW reporting MID 219. 503 — ECU Identification on Datalinks The information in Table 1 identifies which ECU is reporting the fault.03 Routing Active J1939 Faults If a J1939 ECU generates an active fault. Collision Warning 42† 42* (219) there is no physical J1708 connection. Accurate information for SID/PID or FMI is not displayed for that fault. HVAC. and which datalink protocol to load in Ser- viceLink to get accurate fault information for troubleshooting that ECU. for example. ECU Identification on Datalinks ECU Description CAN ID J1939 SA J1587 MID Comments SAM Cab 33* (33) (249) — SAM Chassis 71* (71) (216) — Modular Switch 49* (49) (164) — Field (MSF) Central Gateway 37* (37) (206) — (CGW) Engine Control 1 0† 0* 128* — Engine Control 2 1† 1* 175* — Transmission 3† 3* 130* — ABS 11† 11* 136* — Retarder. September 2011 G04.CAN Fault Codes G04. CGW reporting MID 200. there may be up to one active fault on J1708 for that CAN ECU under the MID for that CAN ECU. Rear 58† 58* (200) there is no physical J1708 connection. CGW reporting MID 221.03 – Central Gateway.03/3 . HVAC. especially if the ICU has a J1708 connection only. for display on the instrument cluster (ICU) message center. The HVAC front control unit. and the FMI may or may not be accurate. It appears under the generic SID of "254". Radio 76† 76* (221) there is no physical J1708 connection. the CGW will route up to one active fault for that ECU on J1708. Engine 12† 12* 173 — Instrument Cluster 23† 23‡ 140* — Navigation 28† 28* 162* — Engine Display 40† 40* 171* — CGW reporting MID 146. refer to G02. Front 25† 25* (146) there is no physical J1708 connection. When a J1939 ECU generates an active fault. is MID 146. 03/4 Cascadia Troubleshooting Manual. 504 — ICU4M J1587 Datalink Roll Call Faults The entire roll call fault on the ICU4M is displayed on a single screen. – The SAM Chassis is diagnosed using the CAN protocol. FMI 02 – MID 136 is the ABS module. SID 254. refer to C01. ECU Identification on Datalinks NOTE: Items in parenthesis indicate a message that is routed to the CGW from an ECU that is not physically connected to the CGW.02 — ICU4/ICU4M. • J1708 Fault: MID 146. SID 123. • J1708 Fault: MID 136. – The ABS is diagnosed using the J1708 protocol. – Load the CAN fault screen in ServiceLink for diagnostic information. SPN 168. For more information on ICU4/ICU4M roll call faults. ‡ ICU4M Only. – Load the J1708 fault screen in ServiceLink for diagnostic information. G04. All J1587 datalink roll call faults have a SID 254 and FMI 07. Table 1. – The Front HVAC is diagnosed using J1939. reported by actual ECU † Not physically connected. FMI 14 – MID 216 is the SAM Chassis. – The MSF is diagnosed using the CAN protocol.03 CAN Fault Codes ECU Identification on Datalinks ECU Description CAN ID J1939 SA J1587 MID Comments Front Airbag Sensor — — 232* — Roll Sensor Module — — 254* — * Physically connected to datalink. FMI 03 – SA 49 is the Modular Switch Field (MSF). The following examples demonstrate how to identify and diagnose faults using Table 1. and not reported by the CGW. – Load the J1939 fault screen in ServiceLink for diagnostic information. FMI 03 – MID 146 is the Front HVAC. – Load the CAN fault screen in ServiceLink for diagnostic information. SID 254. Refer to Table 2 for more information. • J1708 Fault: MID 216. September 2011 . • J1939 Fault: SA 49.G04. VCU/CPC. J1939 • G03.04 — SAM Cab Fuse group 25 – conn X2.04 — Datalink. C07.01 — HVAC conn X1. G02. IGN – Voltage above normal. pin 14 Voltage below normal.02 — Datalink Communication Structure • G02. pin 1 — — G02.01 — Datalink.01 — Starting and Charging below normal. pin 4 — — G02.01 — Starting and Charging 33 168 3 — — — above normal.04 — SAM Cab shorted to high source.09 — Collision Avoidance System 33 520201 4 conn X1.CAN Fault Codes G04.03/5 . Electrical Potential (Voltage) – Voltage P01. conn X1. pin 3 Fuse group 2 – Voltage 33 520203 4 conn X1. or G02. 33 520304 3 conn X2. September 2011 G04.03 505 — Related Subjects • G02.01 — Starting and Charging 33 168 4 — — — P01. pin 4 F25 R8 or shorted to low G02. pin 9 shorted to low source. G02.04 — SAM Cab or shorted to high source.04 — SAM Cab • G02.02 — Datalink. Diagnostic CAN 700 — CAN Fault Codes NOTE: Table 2 lists faults for the following ECUs: • 33 – SAM Cab • 37 – Central Gateway (CGW) • 49 – Modular Switch Field (MSF) • 71 – SAM Chassis CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Electrical Potential (Voltage) – Voltage P01.06 — Modular Switch Field • G03.04 — SAM Cab conn X1.04 — SAM Cab or shorted to low source. Cabin CAN • G03. Cascadia Troubleshooting Manual. pin 1 source. 33 520288 4 conn X2. or shorted to low source.03 — Datalink. or C02.04 — SAM Cab Auxiliary heater – Voltage below normal. J1587/J1708 • G03.05 — SAM Chassis • G02. pin 6 F2 — below normal. C07. pin 14 .01 — Starting and Charging 33 520710 3 F23 R7 conn X6.04 — SAM Cab source. C06. Mirror heating.08 — SRS System conn X3. pin 6 Voltage above normal. pin 4 G02. pin 10 source. pin 10 conn X6.02 — ICU4/ICU4M Instrument Cluster conn X2. pin 6 Voltage below normal. conn X6.05 — Heated Mirrors 33 520908 4 conn X8. or C01. pin 2 F28 G02. C05. SRS airbag. C06. 33 520404 4 conn X3. G04. pin 9 or shorted to low source. P01. ACC – Voltage above normal. pin 11 conn X1. pin 6 F26 R8 or shorted to low G02. pin 10 source.01 — ICU3 conn X2. IGN_X – Voltage below normal.04 — SAM Cab Relay group 8 – Voltage C01.04 — SAM Cab conn X6. C01.04 — SAM Cab or shorted to high source. pin 8 F27 R10 or shorted to low G02. pin 9 F24 33 520716 3 R8 above normal. pin 10 conn X6. pin 8 or shorted to low G02. pin 5 Fuse group 23 – conn X6.02 — ICU4/ICU4M Instrument Cluster Door open status – Voltage above normal. Mirror heating. Advertising light.03/6 Cascadia Troubleshooting Manual.08 — SRS System 33 520406 4 conn X3. conn X17. pin 5 — — or shorted to high G02.01 — Starting and Charging 33 520710 4 F23 R7 conn X6. P01. pin 11 conn X3. pin 5 — — or shorted to low G02.04 — SAM Cab 33 520716 4 F24 R8 C01. C05.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Advertising light.F25 shorted to high source.G04.04 — SAM Cab source. conn X6. pin 8 F27.04 — SAM Cab source. conn X3. driver and passenger – conn X8.04 — SAM Cab or shorted to high source. pin 16 C07. pin 4 F17 R14 G02.05 — Heated Mirrors 33 520908 3 R10 Voltage above normal. September 2011 . C07. 33 520404 3 conn X3.04 — SAM Cab or shorted to low source.04 — SAM Cab conn X6.09 — Collision Warning System Fuse group 24 – conn X6 pin 16 Voltage below normal.04 — SAM Cab source. pin 1 conn X1. ACC – Voltage below normal.01 — Dome Lighting 33 520905 4 conn X8.01 — Dome Lighting 33 520905 3 conn X8. pin 5 Fuse group 23 – conn X6. G02. pin 8 or shorted to high G02. pin 6 conn X6. pin 4 — — G02.01 — ICU3 conn X2. driver – Voltage below normal. Door open status – Voltage below normal. C05.05 — Parkinging Brake Warning 33 521004 3 conn X9. or G02. or G02.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Door sill lamp.04 — SAM Cab above normal. Body builder connector: backup lamp – Voltage 33 521009 3 conn X9.04 — SAM Cab shorted to high source. or shorted to high source. driver – Voltage below normal. pin 7 — — above normal.04 — SAM Cab shorted to high source. pin 11 — — G02. Body builder connector: IGN_X – Voltage above 33 521011 3 conn X9. or G02. or G02. Cascadia Troubleshooting Manual. or shorted to low source. pin 4 — — G02. pin 6 — — above normal. pin 3 — — above normal. Function pin 3 – Voltage 33 521007 3 conn X9.04 — SAM Cab normal.04 — SAM Cab shorted to low source. pin 3 — — below normal. Body builder connector: park brake – Voltage H01.04 — SAM Cab shorted to low source.04 — SAM Cab shorted to high source. pin 9 — — or shorted to low G02. or shorted to high source. September 2011 G04. pin 5 — — above normal.CAN Fault Codes G04. Body builder connector: marker lights – Voltage 33 521010 3 conn X9.04 — SAM Cab shorted to low source.04 — SAM Cab above normal. or G02. pin 4 — — System above normal.04 — SAM Cab source.03/7 . Function pin 2 – Voltage 33 521005 4 conn X9. or G02. pin 6 — — below normal. Function pin 4 – Voltage 33 521006 3 conn X9. or shorted to high source.04 — SAM Cab shorted to high source. pin 9 — — G02. Function pin 3 – Voltage 33 521007 4 conn X9. pin 10 — — G02. pin 7 — — below normal.01 — Dome Lighting 33 520909 4 conn X8. Function pin 1 – Voltage 33 521003 3 conn X9. Function pin 2 – Voltage 33 521005 3 conn X9. pin 5 — — below normal. or G02. Function pin 4 – Voltage 33 521006 4 conn X9. Function pin 1 – Voltage 33 521003 4 conn X9.04 — SAM Cab below normal. G02.04 — SAM Cab shorted to low source. or G02.04 — SAM Cab Body builder connector: park brake – Voltage 33 521004 4 conn X9. or shorted to high source. 33 521110 3 conn X10.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Body builder connector: tail lights – Voltage 33 521012 3 conn X9. pin 6 — — above normal.06 — Power Mirrors 33 521102 4 conn X10. or shorted to high source. Ignition group 1 – Voltage above normal. or shorted to G02.04 — Stop.04 — SAM Cab low source. 12 volt – Voltage below normal. Wake-up (instrument cluster) – Voltage below C05.03 — Panel Backlighting 33 521117 4 conn X10.04 — Stop. Washer level.04 — SAM Cab shorted to high source.03 — Panel Backlighting 33 521113 4 conn X10. Panel lamps. ACC – Voltage C06. Turn. C05. pin 7 — — normal. pin 13 — — or shorted to low G02.01 — Windshield Wiper/Washer 33 521202 3 conn X11. ACC – Voltage C06. Mirror adjust switch supply. pin 7 — — normal.04 — SAM Cab shorted to high source. ICU indicator – Voltage C06. pin 10 — — G02. pin 2 — — below normal. or shorted to high source. pin 2 — — above normal.04 — SAM Cab or shorted to high source. 33 521110 3 conn X20. Fuel water separator ICU indicator – Voltage 33 521204 3 conn X11.04 — Low Air Pressure Warning 33 521206 3 conn X11. G04. or shorted to G02. pin 17 — — normal. pin 13 — — G02.04 — SAM Cab source.04 — SAM Cab high source.04 — SAM Cab shorted to high source. September 2011 . or shorted to G02. Mirror adjust switch supply. or G02.03/8 Cascadia Troubleshooting Manual.04 — SAM Cab above normal. Ignition group 1 – Voltage above normal. Service brake pressure switch – Voltage below C04.04 — SAM Cab or shorted to high source. Low air pressure ICU indicator – Voltage H01. and Hazard Lights 33 521107 4 conn X10.04 — SAM Cab low source. or G02. or G02.04 — SAM Cab shorted to low source.G04. and Hazard Lights 33 521107 3 conn X10. pin 4 — — G02.06 — Power Mirrors 33 521102 3 conn X10. pin 2 — — above normal.04 — SAM Cab above normal. Service brake pressure switch – Voltage above C04. or G02. Turn. pin 12 — — G02. pin 3 — — below normal. Turn signal. G02.03/9 .01 — Starting and Charging 33 521212 3 conn X11. pin 11 — — below normal. pin 7 — — G02.05 — Parking Brake Warning System 33 521214 3 conn X11. pin 12 — — above normal. left ICU indicator – Voltage C04. pin 8 — — G02. pin 9 — — below normal. General sleeper lamp.04 — SAM Cab source. Alternator. or C05. pin 6 — — or shorted to low G02. C05. Park brake. pin 13 — — below normal. or shorted to high source.04 — SAM Cab – Data erratic.04 — SAM Cab above normal.04 — Stop. or G02.04 — SAM Cab shorted to low source.01 — Cruise Control 33 521220 2 — — bottom-of-clutch switch conn X11. Top and bottom-of-clutch switch conn X11.04 — SAM Cab shorted to low source.04 — SAM Cab shorted to high source. Turn.04 — SAM Cab normal.04 — Stop. or G02.01 — Cruise Control 33 521220 3 — — – Voltage above conn X11. pin 20 P04. Top and conn X11.04 — SAM Cab or shorted to high source.02 — Sleeper Lighting 33 521306 4 conn X12. or G02. or shorted to high source. 33 521207 3 conn X11. no charge ICU indicator – Voltage P01.04 — SAM Cab shorted to low source. pin 17 G02. ICU indicator – Voltage H01. Air filter restriction ICU indicator – Voltage 33 521208 3 conn X11. and Hazard Lights 33 521211 4 conn X11. pin 20 P04. Cascadia Troubleshooting Manual. zone 9 – Voltage below normal. Turn signal. pin 14 — — above normal.01 — Dome Lighting shorted to low source. pin 17 G02. Footwell lamp – Voltage 33 521303 4 conn X12. High beam ICU indicator – Voltage C04. Turn.04 — SAM Cab shorted to low source.02 — Headlight System 33 521209 4 conn X11. September 2011 G04. or G02. or G02. or G02.04 — SAM Cab shorted to high source. zone 4b – Voltage C05. and Hazard Lights 33 521213 4 conn X11. right ICU indicator – Voltage C04. pin 9 — — below normal.02 — Sleeper Lighting 33 521309 4 conn X12.04 — SAM Cab Reading lamp 1.CAN Fault Codes G04.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Lights ON buzzer – Voltage above normal. and Hazard Lights 33 521318 4 — — conn X20. left. C04. C05. Off. or G02. pin 17 — — normal.04 — SAM Cab shorted to high source. C04.04 — SAM Cab source. G02. C05. front side – conn X12. Turn. Turn.04 — SAM Cab source. pin 3 — — below normal. intermittent or incorrect.04 — Stop. pin 12 — — Voltage above normal. 33 521405 2 conn X13. pin 12 — — Voltage below normal. Turn. Ignition switch pins (ACC.04 — SAM Cab source.02 — Sleeper Lighting 33 521317 4 conn X12.04 — SAM Cab low source. front side – conn X12. pin 11 Voltage below normal. C05. pin 18 Voltage below normal. G04. Rear dome lamp. pin 11 Voltage above normal.04 — SAM Cab CAN high – Voltage 33 521403 4 conn X13. Turn. front side – conn X21. Turn. intermittent or incorrect.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Rear baggage compartment lights – 33 521312 3 conn X12. pin 15 or shorted to high G02. September 2011 . pin 2 — — above normal.02 — Sleeper Lighting or shorted to low G02. CAN low – Voltage 33 521402 3 conn X13. pin 5 — — G02. zone 5 – Voltage below normal.04 — SAM Cab Crank) – Data erratic. pin 15 or shorted to low G02. C04. or G02.04 — SAM Cab source. Ignition switch pins (ACC.04 — SAM Cab source.03/10 Cascadia Troubleshooting Manual. pin 15 — — G02. Off.04 — Stop. or shorted to G02. C04. right. Rear baggage compartment lights – 33 521312 4 conn X12. Ignition On. front side – conn X21. Turn.04 — SAM Cab source. Turn. right.04 — SAM Cab shorted to low source. left.02 — Sleeper Lighting 33 521316 4 conn X12. and Hazard Lights 33 521315 3 — — conn X12.04 — Stop. zone 4c – Voltage below C05.04 — Stop. and Hazard Lights 33 521315 4 — — conn X12.04 — SAM Cab Crank) – Data erratic. and Hazard Lights 33 521318 3 — — conn X20. pin 15 or shorted to low G02.02 — Sleeper Lighting or shorted to high G02. Ignition On. pin 18 Voltage above normal. pin 16 — — or shorted to low G02.04 — SAM Cab source. Reading lamp 2. pin 15 or shorted to high G02.G04. Turn. 33 521405 2 conn X13. 04 — SAM Cab source. BAT – 33 521407 6 conn X13.04 — SAM Cab conn X13. pin 10 Voltage above normal.04 — SAM Cab low source.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Ignition switch pins (ACC. pin 4 — — or shorted to high G02. pin 9 Chopped group 5 – H01.CAN Fault Codes G04. Lane guidance. Ignition On.04 — SAM Cab or shorted to high source. G02. Off.04 — SAM Cab conn X18. pin 7 — — Current above normal.04 — SAM Cab Crank) – Data erratic. pin 10 Voltage below normal. intermittent or incorrect. C04. 33 521405 2 conn X13. pin 11 conn X19. pin 11 conn X19. Ignition On.05 — Tail and Marker Lights 33 521704 3 conn X16.05 — Parking Brake Warning System conn X13. pin 11 — — System or shorted to high source.04 — SAM Cab Crank) – Data erratic.03/11 . pin 6 — — G02.04 — SAM Cab Chopped group 5 – Voltage above normal. Off. IGN – Voltage below normal. H01. pin 2 F30 R11 normal. pin 13 source.05 — Parking Brake Warning System conn X19. 33 521405 2 conn X13. System 33 521411 4 conn X13. H01. pin 9 Chopped group 5 – H01. G02. Ignition switch. pin 14 conn X13. Clearance lamps II – Voltage above normal. pin 8 conn X13. pin 4 — — G02. IGN – Voltage above normal.04 — SAM Cab or shorted to low source. Chopped group 5 – Voltage above normal. 33 521702 4 conn X16. 33 521702 3 conn X16. G02.04 — Low Air Pressure Warning 33 521411 3 conn X13. pin 14 12 V power receptacle 6 – Voltage below C06. Lane guidance. G02. G02. pin 8 conn X13. pin 2 — — G02.04 — Low Air Pressure Warning 33 521411 3 conn X13. pin 10 — — System or shorted to high source. or shorted to G02.04 — SAM Cab or grounded circuit. pin 2 — — G02. Ignition switch pins (ACC. pin 13 source. pin 11 — — or shorted to low H01. Cascadia Troubleshooting Manual. pin 11 — — or shorted to high System conn X19. September 2011 G04.04 — Low Air Pressure Warning 33 521411 3 conn X13. H01. intermittent or incorrect.04 — SAM Cab conn X18.08 — Cab Power Receptacles 33 521502 4 conn X14.04 — Low Air Pressure Warning conn X13. 04 — SAM Cab Marker lamp. High beam.04 — SAM Cab source.04 — SAM Cab source.04 — SAM Cab source. corner.02 — Headlight System 33 521905 4 conn X18.04 — SAM Cab shorted to low source.01 — Dome Lighting 33 521711 4 — — conn X16. front right – Voltage C04. C04. or G02. pin 8 — — or shorted to high G02. pin 5 — — Voltage below normal.04 — SAM Cab source. ACC – 33 521705 4 conn X16. pin 5 — — Current below normal.G04. left – Voltage above normal. Low beam. pin 11 passenger – Voltage C05. G02. pin 6 — — Current below normal. left – 33 521906 5 conn X18. left – Voltage above normal.04 — SAM Cab shorted to high source.04 — SAM Cab shorted to low source.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Auxillary circulation fan. Clearance lamps I – Voltage above normal. Mirror heating passenger – Voltage C06. windshield.04 — SAM Cab shorted to low source. pin 8 — — above normal. left – Voltage below normal. or G02. C04. G04. G02.05 — Tail and Marker Lights 33 521708 3 conn X16. pin 14 below normal. pin 2 F28 R10 below normal.04 — SAM Cab or shorted to low source.02 — Headlight System 33 521906 3 conn X18. Low beam.02 — Headlight System 33 521905 3 conn X18. September 2011 . driver and conn X16.03/12 Cascadia Troubleshooting Manual. C04. C04. pin 6 — — or shorted to low G02.04 — SAM Cab source. pin 3 — — below normal.05 — Heated Mirrors 33 521802 4 conn X17.02 — Headlight System or open circuit.02 — Headlight System 33 521906 4 conn X18. pin 5 — — or shorted to low G02. pin 6 — — or shorted to high G02. C04. G02. Door sill lamp. C04. Dome lamps. left – Voltage below normal.04 — SAM Cab High beam. C04.01 — Dome Lighting 33 521803 4 conn X17. High beam. Low beam. pin 5 — — or shorted to high G02. or G02. passenger – Voltage C05.05 — Tail and Marker Lights 33 521908 3 conn X18. or G02. left – 33 521905 5 conn X18.02 — Headlight System or open circuit. pin 9 — — – Current below normal. front left – Voltage C04.02 — Headlight System 33 521920 3 conn X18.04 — SAM Cab source. and Hazard Lights 33 521919 3 conn X18. left.04 — Stop. right.02 — Headlight System or open circuit. front corner – Voltage above C04. and Hazard Lights 33 521909 3 conn X18.04 — SAM Cab high source. G02. pin 17 — — or shorted to high G02. pin 9 — — normal. Cascadia Troubleshooting Manual. left. September 2011 G04.04 — SAM Cab Marker lamp. Marker lamp. pin 16 — — above normal. right – 33 521917 5 conn X18. front corner – Voltage below normal.04 — SAM Cab source. High beam. G02.04 — SAM Cab Turn. Turn. pin 14 — — above normal.04 — SAM Cab shorted to high source. C04. right.04 — Stop. pin 20 — — or shorted to high G02. pin 19 — — or shorted to high G02. Turn. or shorted to G02. right – Voltage above normal. Turn. pin 12 — — normal. front corner – Voltage above normal. High beam. G02.03/13 .04 — Stop.04 — Stop. C04. or G02. C04.02 — Headlight System 33 521917 3 conn X18. front corner – Voltage below normal.04 — Stop. front corner – 33 521919 5 conn X18.05 — Tail and Marker Lights 33 521912 3 conn X18. Marker lamp. front corner 33 521909 5 conn X18. right. Turn.04 — SAM Cab source. C04. and Hazard Lights or open circuit. pin 19 — — Current below normal.04 — SAM Cab source. or G02. Turn.CAN Fault Codes G04. pin 9 — — or shorted to low G02. corner. Turn. front right – Voltage above C04. front left – Voltage C04. left.04 — SAM Cab Low beam.04 — SAM Cab source. Turn. C04. and Hazard Lights 33 521919 4 conn X18. High beam. pin 17 — — Current below normal. and Hazard Lights or open circuit. C04. right – Voltage above normal. Turn.04 — SAM Cab source. or shorted to G02. pin 17 — — or shorted to low G02. C04.04 — SAM Cab high source. corner. C04.02 — Headlight System 33 521917 4 conn X18. right – Voltage below normal.05 — Tail and Marker Lights 33 521916 3 conn X18.05 — Tail and Marker Lights 33 521914 3 conn X18.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Turn. C04.04 — Stop. Turn. pin 19 — — or shorted to low G02.04 — SAM Cab shorted to high source. and Hazard Lights 33 521909 4 conn X18. Turn. A/C Compressor clutch 33 522006 5 conn X19.04 — SAM Cab or shorted to high source. Fog lamp. C02. 33 522018 3 conn X19. C02. pin 21 — — above normal. feedback – C02.01 — HVAC System 33 522010 2 conn X19. intermittent G02. G04.04 — SAM Cab shorted to low source.04 — SAM Cab source. electric – Voltage 33 521921 3 conn X18. G02.04 — SAM Cab Starter relay 3 – Voltage 33 522003 3 conn X19.04 — SAM Cab Horn. Starter relay 3 – Voltage 33 522003 4 conn X19.01 — HVAC System or open circuit.06 — Fog Lights 33 522108 4 conn X20. G02.03/14 Cascadia Troubleshooting Manual. or G02. or C06. pin 3 — — above normal.04 — SAM Cab Horn. C04.02 — Headlight System or open circuit.G04. pin 21 — — above normal. pin 18 — — G02. pin 10 — — Data erratic. electric – Current 33 521921 5 conn X18. or C06.04 — SAM Cab source. Engine ECU.01 — HVAC System 33 522006 4 conn X19.04 — SAM Cab HVAC pressure transducer. or open C06. pin 8 — — or shorted to high G02. right – 33 521920 5 conn X18. pin 8 — — or shorted to low G02. September 2011 . C04. electric – Current 33 521921 6 conn X18. G02. pin 6 — — normal.04 — SAM Cab source.04 — Horn grounded circuit. G02. pin 20 — — or shorted to low G02. C04. G02. front left – Voltage below normal.01 — HVAC System 33 522006 3 conn X19.02 — Headlight System 33 521920 4 conn X18.04 — Horn circuit. pin 6 — — or shorted to low G02.04 — SAM Cab or incorrect.04 — SAM Cab high source.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Low beam. A/C Compressor clutch – Voltage below normal. pin 21 — — below normal. Fog lamp.06 — Fog Lights 33 522108 3 conn X20. Low beam. A/C Compressor clutch – Voltage above C02. pin 20 — — Current below normal. IGN – Voltage above normal. pin 3 — — below normal. front left – Voltage above normal.04 — SAM Cab source.04 — SAM Cab shorted to high source. right – Voltage below normal. pin 6 — — – Current below normal. C04. or shorted to G02.04 — SAM Cab Horn. or G02.04 — Horn shorted to high source. 04 — SAM Cab normal. or shorted to low source.04 — SAM Cab normal. Temperature sensor. Fog lamp. Fog lamp. C04. auxiliary right – Voltage below 33 522112 4 conn X20. auxiliary right – Voltage above 33 522112 3 conn X20. G02. feedback – C06.06 — Fog Lights or open circuit. September 2011 G04. or shorted to high source. pin 10 — — G02. auxiliary left – Voltage below normal. C04. auxiliary left – Voltage above 33 522110 3 conn X20.04 — SAM Cab or shorted to low source. auxiliary left – Voltage below normal. auxiliary left – Voltage above 33 522111 3 conn X20. auxiliary right – Voltage below 33 522114 4 conn X20.04 — SAM Cab or incorrect. Low beam. front left – 33 522108 5 conn X20. High beam. or shorted to high source. auxiliary right – Voltage above 33 522114 3 conn X20. pin 8 — — Current below normal. pin 17 — — Current below normal. Low beam. 33 522110 4 conn X20.03/15 .03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Fog lamp.04 — SAM Cab source. 33 522111 4 conn X20. front right – Voltage below normal. pin 10 — — G02. Low beam. pin 14 — — G02. High beam. outside air.05 — Heated Mirrors 33 522116 2 conn X20.04 — SAM Cab Cascadia Troubleshooting Manual. pin 12 — — G02.06 — Fog Lights 33 522117 3 conn X20. G02.04 — SAM Cab source. or shorted to low source. pin 17 — — or shorted to high G02. front right – Voltage above normal.04 — SAM Cab normal.04 — SAM Cab normal. pin 16 — — Data erratic.06 — Fog Lights 33 522117 4 conn X20. High beam. front right – 33 522117 5 conn X20. Low beam.04 — SAM Cab normal. pin 12 — — G02. intermittent G02.04 — SAM Cab or shorted to low source.04 — SAM Cab normal. pin 17 — — or shorted to low G02. C04. or shorted to high source. pin 11 — — G02. pin 14 — — G02.CAN Fault Codes G04.04 — SAM Cab High beam. C04. pin 11 — — G02. Fog lamp.06 — Fog Lights or open circuit. or shorted to high source. 04 — SAM Cab conn X3. and wiper conn X21. pin 20 — — above normal.03/16 Cascadia Troubleshooting Manual. pin 20 — — below normal. or shorted to low source. Wiper high. pin 20 — — below normal.04 — SAM Cab high source. pin 21 — — normal. Washer pump – Voltage 33 522120 3 conn X20. pin 7 circuit. Utility light – Voltage conn X21. pin 14 33 522214 3 — — above normal. or shorted to G02. Utility light – Current conn X21. intermittent or C06.04 — SAM Cab Washer fluid level sensor – Voltage above C06. or open C06. September 2011 .04 — SAM Cab circuit. G02.04 — SAM Cab high source. pin 14 33 522214 5 — — below normal. Cabin CAN with SAM Chassis.01 — Windshield Wiper/Washer circuit. pin 7 shorted to low source. pin 19 — — control).03 — Datalink.03 — Datalink. or G02. pin 14 33 522214 4 — — below normal. BAT – Voltage G02.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Distance sensor (adaptive cruise 33 522119 4 conn X20. Cabin CAN with CGW.03 — Datalink. Lost communication 33 524037 31 — — — G03. or C06.01 — Windshield Wiper/Washer shorted to high source. G04. pin 12 normal. or open G02. or C06.04 — SAM Cab below normal.01 — Windshield Wiper/Washer shorted to low source. pin 7 shorted to high source. Cabin CAN with MSF. or G02.01 — Windshield Wiper/Washer incorrect.04 — SAM Cab Washer pump – Current 33 522120 5 conn X20.03 — Central Gateway shorted above normal or shorted to high. G02.04 — SAM Cab Utility light – Voltage conn X21.01 — Windshield Wiper/Washer 33 522121 3 conn X20.G04. pin 15 low – Current above C06. pin 9 — — erratic. Wiper parked – Data 33 522209 2 conn X21. pin 15 low – Voltage above C06.04 — SAM Cab conn X3. G02. and wiper conn X21. Wiper high. Electrical potential (voltage) – voltage 37 168 3 pin 1 — — G02. Lost communication 33 524071 31 — — — G03.01 — Windshield Wiper/Washer 33 522215 3 — — conn X21. or shorted to G02.01 — Windshield Wiper/Washer 33 522215 6 — — conn X21. pin 12 normal.04 — SAM Cab Washer pump – Voltage 33 522120 4 conn X20.04 — SAM Cab conn X3. or grounded G02. G02. Lost communication 33 524049 31 — — — G03. right – Voltage below P04.06 — Modular Switch Field high source.06 — Modular Switch Field low source. Program memory – Bad 37 628 12 — — — intelligent device or G02. pin 2 — — C02. pin 2 — — C02. pin 2 — — normal or shorted to C02. G03.03 — Central Gateway 37 524033 31 — — — with SAM Cab.03/17 . G02. Cabin CAN Lost communication G02.06 — Modular Switch Field high source. Electrical Potential (Voltage) – Voltage 49 168 4 conn D. Steering wheel switch. or shorted to high source. pin 19 — — performance.CAN Fault Codes G04. left – Voltage below P04. Steering wheel switch.01 — Cruise Control 49 520201 4 conn A.03 — Datalink.03 — Central Gateway component. Diagnostic CAN G02.03 — Datalink.06 — Modular Switch Field below normal. G03.06 — Modular Switch Field above normal. Cascadia Troubleshooting Manual.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Electrical potential (voltage) – voltage 37 168 4 pin 1 — — G02. Cabin CAN Lost communication G02. pin 2 — — Voltage above normal or C02.01 — Cruise Control 49 520201 3 conn A.06 — Modular Switch Field low source.03 — Central Gateway G03. Cabin CAN Cabin CAN G02. Sub bus signal – 49 520302 3 conn B. pin 21 — — performance.03 — Datalink. right – Voltage above P04.03 — Central Gateway 37 524049 31 — — — with MSF. left – Voltage above P04. pin 8 — — J1708 performance. Cabin CAN Electrical Potential (Voltage) – Voltage 49 168 3 conn D.03 — Datalink. pin 1 — — normal or shorted to C02. or shorted to low source. Steering wheel switch.03 — Central Gateway 37 524071 31 — — — with SAM Chassis.01 — Cruise Control 49 520203 3 conn A. G03. Cabin CAN Lost communication G02.03 — Central Gateway shorted below normal or shorted to low.01 — Cruise Control 49 520203 4 conn A. pin 2 — — normal or shorted to C02. Cabin CAN 37 523513 31 pin 2. September 2011 G04. Cabin CAN J1939 CAN G02. pin 23 — — performance. G03.03 — Central Gateway 37 523510 31 pin 18.06 — Modular Switch Field shorted to high source.03 — Datalink.03 — Datalink. Steering wheel switch.03 — Datalink. G03. G03.03 — Central Gateway 37 523511 31 pin 14.03 — Central Gateway 37 523512 31 pin 16. pin 1 — — normal or shorted to C02. 06 — Modular Switch Field shorted to low source.06 — Modular Switch Field 49 523531 31 — — — Extra Sub bus switch.G04. C02. pin 5 Lost communication G03. C02.05 — SAM Chassis shorted to low source. C02.03 — Datalink.03 — Datalink. pin 1 — — C02. C02.02 — Headlight System 49 523543 2 — — – Data erratic.01 — Starting and Charging 71 168 3 — — — above normal or G02. common – Voltage 49 520415 4 conn C.03 — Datalink. C02. pin 7 C02. conn D. pin 4 — — Voltage above normal or C04. C02.02 — Headlight System shorted to high source. Cabin CAN 49 524037 31 — — — with CGW. Cabin CAN 49 524071 31 — — — with SAM Chassis. pin 2 — — Voltage below normal or C02. wiper.01 — Starting and Charging 71 168 4 — — — below normal. pin 4 intermittent.06 — Modular Switch Field Stalk switch interrupt – conn C.06 — Modular Switch Field below normal or shorted to low source. G04. pin 3 C04. Stalk switch.06 — Modular Switch Field conn D. Stalk switch. C02. Cabin CAN 49 524033 31 — — — with SAM Cab. pin 5 — — or shorted to high C02.06 — Modular Switch Field conn E. pin 2 C05.06 — Modular Switch Field source. or G02. September 2011 .03 — Panel Backlighting 49 520607 4 — — below normal or conn E. pin 5 Performance.06 — Modular Switch Field 8.06 — Modular Switch Field Lost communication G03. C02.06 — Modular Switch Field normal or shorted to low source. pin 3 Cabin CAN 49 523511 31 — — C02.06 — Modular Switch Field Electrical potential (voltage) – Voltage P01. pin 4 pin 49 520404 5 — — Current below normal. 49 523530 31 — — — Sub bus switch missing. Headlamp switch +12V Battery – Voltage below 49 520601 4 conn E. high beam – Voltage above normal C04. 14 or open circuit. Stalk switch flash – 49 520404 3 conn C. 9.06 — Modular Switch Field shorted to low source. conn E.03/18 Cascadia Troubleshooting Manual. Backlighting – Voltage conn A. or incorrect. pin 15 — — C02.05 — SAM Chassis shorted to high source.02 — Headlight System 49 520405 3 conn C.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Sub bus signal – 49 520302 4 conn B. Electrical Potential (Voltage) – Voltage P01. pin 2 Headlamp switch inputs conn E.06 — Modular Switch Field Lost communication G03.06 — Modular Switch Field conn E. pin 2 — — below normal. CAN high – Voltage 71 520202 4 conn X51.05 — SAM Chassis shorted to low source. pin 1 or shorted to low G02.05 — Tail and Marker Lights 71 520402 4 conn X53.05 — SAM Chassis source. pin 13 – Voltage below normal. Marker lamp. or G02.CAN Fault Codes G04.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject CAN low – Voltage 71 520201 3 conn X51. left – Voltage C04. pin 1 normal.05 — SAM Chassis shorted to high source.05 — Tail and Marker Lights 71 520402 3 conn X53. C04. or G02. Cascadia Troubleshooting Manual.05 — SAM Chassis shorted to low source. pin 7 F8 R4 normal. or shorted to G02. pin 13 – Voltage above C04.05 — SAM Chassis circuit. side right conn X58. corner rear. turn lamp. corner rear. Marker lamp. Marker lamp. Trailer. or G02. or shorted to low source.05 — Tail and Marker Lights 71 520301 3 — — conn X52.07 — Trailer Lights 71 520407 3 conn X53. G02. or G02. Marker lamp. corner rear. or open G02.05 — SAM Chassis high source. pin 6 F6 R3 Systems normal.01 — ABS and Stability Control 71 520302 4 conn X52.05 — Tail and Marker Lights conn X52. side right conn X58. left – Voltage C04. corner rear.05 — SAM Chassis high source. pin 1 G02.05 — Tail and Marker Lights 71 520402 5 conn X53.03/19 .05 — Tail and Marker Lights 71 520301 4 — — conn X52. corner rear. Marker lamp. C04. or shorted to G02. right – Voltage C04. pin 3 — — below normal.05 — SAM Chassis or open circuit. pin 2 — — above normal. or G02. pin 2 — — below normal. right – Voltage C04. September 2011 G04.05 — Tail and Marker Lights 71 520303 5 conn X52.05 — SAM Chassis shorted to low source. pin 3 — — below normal. Marker lamp.05 — SAM Chassis shorted to high source. Marker lamp.05 — Tail and Marker Lights 71 520303 4 conn X52. Power feed ABS/BS. or G02. corner rear. right – Voltage above C04.05 — SAM Chassis circuit.05 — SAM Chassis shorted to high source. pin 1 — — above normal.05 — Tail and Marker Lights 71 520303 3 conn X52. pin 13 71 520301 5 — — – Current below normal. pin 2 — — below normal. Marker lamp. or open G02. left – Current C04. side right conn X58. IGN – Voltage below H01. right – Current C04.05 — SAM Chassis Marker lamp. pin 3 — — above normal. marker lamps – Voltage below normal. C04.07 — Trailer Lights or shorted to high G02. pin 9 F5 R2 or shorted to high G02. pin 1 F11 R6 Systems below normal.01 — ABS and Stability Control 71 520501 4 conn X54.07 — Trailer Lights 71 520603 3 conn X55. C04.07 — Trailer Lights 71 520603 4 conn X55.01 — ABS and Stability Control 71 520501 3 conn X54. pin 7 F8 R4 or shorted to low G02. C04. IGN – Voltage H01.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Trailer. tail lamps – Voltage above normal.07 — Trailer Lights 71 520409 3 conn X53. Trailer. C04. pin 1 F11 R6 Systems above normal.05 — SAM Chassis Trailer. pin 3 F13 R9 or shorted to high G02. left – Voltage below normal. C04. or shorted to high source. pin 2 F9 R5 or shorted to low G02. left – Voltage above normal. Trailer. right – Voltage below normal. pin 2 — — Voltage above normal.07 — Trailer Lights 71 520602 4 conn X55.05 — SAM Chassis source. Trailer. End-of-frame primary trailer power.07 — Trailer Lights 71 520407 4 conn X53. C04. tail lamps – Voltage below normal. September 2011 . G02.05 — SAM Chassis source. Trailer.G04.07 — Trailer Lights 71 520409 4 conn X53.05 — SAM Chassis source.05 — SAM Chassis source. ABS connector (7). turn lamp. stop lamps – Voltage above normal.05 — SAM Chassis source.07 — Trailer Lights 71 520604 3 conn X55. G02.05 — SAM Chassis source. Trailer. pin 4 F12 R7 or shorted to low G02.05 — SAM Chassis source. or shorted to low source. Trailer. Trailer. pin 3 F13 R9 or shorted to low G02. pin 4 F12 R7 or shorted to high G02.05 — SAM Chassis source. ABS connector (7). C04. pin 9 F5 R2 or shorted to low G02. G04.07 — Trailer Lights 71 520604 4 conn X55.07 — Trailer Lights 71 520602 3 conn X55. stop lamps – Voltage below normal. pin 2 F9 R5 or shorted to high G02. C04. turn lamp.05 — SAM Chassis Trailer.03/20 Cascadia Troubleshooting Manual. C04.05 — SAM Chassis source. IGN – 71 520702 3 conn X56.05 — SAM Chassis source. turn lamp. marker lamps – Voltage above normal. IGN – Voltage H01. C04. Trailer. right 71 520707 4 conn X56.05 — SAM Chassis source.05 — SAM Chassis or shorted to high source. End-of-frame primary trailer turn lamps. left – C04. or shorted to low source. G02. pin 4 — — ACC – Voltage below G02. conn X52. pin 1 shorted to low source.05 — SAM Chassis normal. G02. End-of-frame primary trailer stop lamps – C04. 71 520804 4 conn X57. or G02. 71 520804 3 conn X57.05 — SAM Chassis source. pin 7 — — – Voltage below normal.07 — Trailer Lights 71 520713 5 conn X56. right C04.05 — SAM Chassis or open circuit.03/21 . G02.07 — Trailer Lights 71 520715 5 conn X56.07 — Trailer Lights 71 520710 5 conn X56.05 — SAM Chassis normal. G02. pin 7 — — – Current below normal.05 — SAM Chassis or open circuit.07 — Trailer Lights or shorted to low G02. pin 6 Relay group 3 – Voltage H01.01 — ABS and Stability Control F6.07 — Trailer Lights or shorted to low G02.CAN Fault Codes G04. pin 3 71 520801 4 F7 R3 below normal.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject End-of-frame primary trailer turn lamps.07 — Trailer Lights 71 520707 5 conn X56. pin 4 — — ACC – Voltage above G02. G02. electrically heated). End-of-frame primary trailer turn lamps. C04. or Systems F7 conn X57. Cascadia Troubleshooting Manual.05 — SAM Chassis or open circuit. Air dryer (pneumatic. End-of-frame primary trailer tail lamps – C04. pin 1 shorted to high source. electrically heated). C04. left – 71 520710 4 conn X56.05 — SAM Chassis conn X57. pin 14 — — Current below normal. G02.05 — SAM Chassis or open circuit.07 — Trailer Lights 71 520714 5 conn X56. September 2011 G04. pin 15 F2 R1 Voltage above normal. pin 10 — — Current below normal. End-of-frame primary trailer turn lamps. 71 520801 3 conn X53. or shorted to high source.05 — SAM Chassis Fuse group 7 – Voltage conn X53. Air dryer (pneumatic. pin 13 — — Current below normal. End-of-frame primary trailer marker lamps – C04. pin 15 — — Current below normal. Fuel water separator heater element – 71 520815 3 conn X57. G02.05 — SAM Chassis or open circuit. pin 3 R3 above normal. pin 10 — — Voltage below normal. License plate lamp – 71 520912 5 conn X58. rear lower – Voltage above normal. Turn. G02. pin 12 — — or shorted to high G02. or C04. pin 12 — — or shorted to low G02. left.05 — SAM Chassis Tail lamp.05 — SAM Chassis source. C04.05 — SAM Chassis License plate lamp – Voltage above normal. rear lower – Voltage above normal. right. and Hazard Lights 71 520910 3 conn X58.G04. and Hazard Lights 71 520901 4 conn X58. September 2011 . G02. rear lower – Voltage below normal.05 — Tail and Marker Lights shorted to high source. and Hazard Lights or open circuit. G02. pin 10 — — or shorted to low G02.05 — SAM Chassis source. pin 1 — — or shorted to high G02.05 — SAM Chassis or shorted to low source. License plate lamp – Voltage below normal.05 — Tail and Marker Lights or open circuit. and Hazard Lights 71 520910 4 conn X58. right.05 — SAM Chassis Tail lamp. C04. pin 3 — — below normal. C04.03/22 Cascadia Troubleshooting Manual. right – Voltage 71 520903 4 conn X58. C04.05 — SAM Chassis Turn. Turn. pin 15 F2 R1 Voltage below normal. rear lower – 71 520901 5 conn X58. or C04. pin 1 — — Current below normal. right – Voltage 71 520903 3 conn X58.05 — Tail and Marker Lights 71 520912 3 conn X58. pin 1 — — or shorted to low G02.04 — Stop.05 — SAM Chassis source. left.04 — Stop. pin 10 — — Current below normal. G02. Turn. C04.05 — SAM Chassis source. pin 3 — — above normal.05 — Tail and Marker Lights shorted to low source.04 — Stop. C04. Turn. C04.05 — Tail and Marker Lights or open circuit. Turn.04 — Stop.05 — SAM Chassis Tail lamp. Turn. Turn.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Fuel water separator heater element – 71 520815 4 conn X57. rear lower – Voltage below normal. pin 3 — — Current below normal. left. Turn. right – 71 520903 5 conn X58. right. and Hazard Lights or open circuit. C04. pin 12 — — Current below normal. and Hazard Lights 71 520901 3 conn X58.04 — Stop. pin 10 — — or shorted to high G02.05 — SAM Chassis G04.05 — SAM Chassis source. G02. C04. Turn.05 — Tail and Marker Lights 71 520912 4 conn X58. Turn. G02.05 — SAM Chassis source. C04. G02. rear lower – 71 520910 5 conn X58.04 — Stop. Turn. and Hazard Lights or open circuit.05 — SAM Chassis Tail lamp. G02. or C04. Turn.03/23 . pin 16 G02. pin 1 Voltage above normal. Turn. or C07.05 — SAM Chassis source.05 — SAM Chassis source. or open C04. Turn. pin 20 — — Current below normal. left – Voltage 71 520918 3 conn X58.05 — SAM Chassis Backup lamp – Voltage 71 520919 3 conn X58.04 — Stop. pin 16 or shorted to high G02. pin 3 shorted to high source. G02. and Hazard Lights shorted to low source. G02. C04. left – conn X53. G02. right – 71 520920 5 conn X58. pin 18 — — above normal.04 — Stop. left – Voltage 71 520921 4 conn X58.04 — Stop.05 — SAM Chassis or open circuit. pin 18 — — below normal.05 — SAM Chassis Tail lamp. C04. pin 20 — — or shorted to low G02.05 — Tail and Marker Lights shorted to high source. conn X58. G02. or C07. pin 19 — — below normal. and Hazard Lights shorted to high source. side. September 2011 G04.01 — Backup Lamps and Alarm shorted to low source. right – Voltage below normal. and Hazard Lights 71 520920 3 conn X58. Tail lamp. or conn X59. C04.05 — SAM Chassis source. G02.05 — SAM Chassis Stop lamp. right – Voltage above normal. G02. pin 21 — — Current below normal. left – conn X53.05 — Tail and Marker Lights 71 520916 5 — — Current below normal. Stop lamp. Marker lamp. pin 18 — — below normal. or C04.03 CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Marker lamp. Stop lamp.01 — Backup Lamps and Alarm shorted to high source. side. G02. C04.05 — SAM Chassis Backup switch – Voltage conn X59.05 — SAM Chassis source.04 — Stop. C04.CAN Fault Codes G04. pin 16 or shorted to low G02. or C04. G02. C04. pin 21 — — above normal. pin 1 C04.05 — SAM Chassis Cascadia Troubleshooting Manual. left – 71 520921 5 conn X58.05 — Tail and Marker Lights 71 520916 3 — — conn X58. Turn.05 — Tail and Marker Lights shorted to low source.05 — SAM Chassis Stop lamp. G02. pin 21 — — below normal. pin 20 — — or shorted to high G02.05 — SAM Chassis Stop lamp. Turn.04 — Stop. and Hazard Lights 71 520920 4 conn X58. left – conn X53. left – Voltage 71 520918 4 conn X58.05 — SAM Chassis Stop lamp. Marker lamp. or C04. Turn. left – Voltage 71 520921 3 conn X58. pin 1 C07.05 — Tail and Marker Lights 71 520916 4 — — conn X58. left – Current 71 520918 5 conn X58. pin 1 Voltage below normal. pin 19 — — above normal.05 — Tail and Marker Lights circuit. and Hazard Lights or open circuit.01 — Backup Lights and Alarm 71 521001 3 — — above normal. side.04 — Stop.05 — SAM Chassis Backup lamp – Voltage 71 520919 4 conn X58. or shorted to with SmartShift high source.03 — Datalink. pin 2 normal.05 — SAM Chassis Lost communication G03. G02. pin 18 switch – Voltage above P02.05 — SAM Chassis Table 2.03 — Datalink. G02.05 — SAM Chassis Lost communication G03.G04.03 — Automatic Manual Transmission 71 521002 3 — — conn X59. Cabin CAN 71 524033 31 — — — with SAM Cab. Cabin CAN 71 524049 31 — — — with MSF. G02.03 CAN Fault Codes CAN Fault Codes SA SPN FMI Conn/Pin Fuse Relay Description Subject Transmission.03/24 Cascadia Troubleshooting Manual.05 — SAM Chassis Lost communication G03.02 — Manual Transmission conn X59. neutral P02. September 2011 . Cabin CAN 71 524037 31 — — — with CGW.03 — Datalink. CAN Fault Codes G04. G02.