Daihatsu Terios ES

TO INDEXENGINE ENGINE CONTROL EFI SYSTEM (3SZ-VE, K3-VE) BASIC INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LOCATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIAGNOSTIC TROUBLE CODE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . PROBLEM SYMPTOMS TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOW TO PROCEED WITH TROUBLESHOOTING . . . . . . . . . . . . . . . . . . CUSTOMER PROBLEM ANALYSIS CHECK SHEET. . . . . . . . . . . . . . . . . CHECK / CLEAR DTCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FREEZE FRAME DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CIRCUIT DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ECU TERMINALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ECU DATA LIST / ACTIVE TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAIL-SAFE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0105/31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0110/43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0115/42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0120/41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0130/21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0135/23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0141/24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0136/22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0171/25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0172/26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0300/17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0301/17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0302/17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0303/17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0304/17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0325/18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0335/13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0340/14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0350/16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0420/27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0443/76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0500/52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0505/71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P0535/44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1105/32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1300/36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1346/75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1349/73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1351/62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1510/54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1560/61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1600/83 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1601/81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P1656/74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U0101/82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U0121/86 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U0156/87 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U1000/85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U1002/88 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FUEL PUMP CONTROL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-1 ES-2 ES-3 ES-4 ES-6 ES-7 ES-8 ES-10 ES-12 ES-16 ES-21 ES-27 ES-28 ES-31 ES-35 ES-38 ES-43 ES-47 ES-47 ES-50 ES-53 ES-53 ES-58 ES-58 ES-58 ES-58 ES-58 ES-63 ES-66 ES-69 ES-72 ES-75 ES-79 ES-81 ES-83 ES-87 ES-89 ES-90 ES-94 ES-95 ES-99 ES-100 ES-103 ES-105 ES-106 ES-109 ES-112 ES-112 ES-112 ES-112 ES-112 ES-115 ES ECU POWER SOURCE SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-120 THROTTLE BODY ASSEMBLY (3SZ-VE) COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-125 ES-127 ES-128 ES-129 ES-130 ES-133 ES-134 ES-134 ES-135 ES-136 ES-136 ES-136 ES-137 KNOCK CONTROL SENSOR (3SZ-VE) COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (3SZ-VE) COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ON-VEHICLE INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE CONTROL COMPUTER (3SZ-VEÅj COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-138 REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-139 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-139 E.F.I. WATER TEMPERATURE (3SZ-VE) INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-140 E.F.I. COMPUTER RELAY (3SZ-VE) INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-141 THROTTLE POSITION SENSOR (3SZ-VE) INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ES-142 ENGINE CONTROL - EFI SYSTEM (3SZ-VE, K3-VE) ES–1 EFI SYSTEM (3SZ-VE, K3-VE) ENGINE CONTROL BASIC INSPECTION HINT: If the malfunction cannot be determined by troubleshooting, the problem area can be narrowed down by performing the following basic inspection. 1. CHECK BATTERY VOLTAGE (a) Check the condition of the battery.(See page CH - 3.) CHECK WHETHER ENGINE CRANKS (a) Make sure that the engine cranks. HINT: If the engine does not crank, check the starting systems. CHECK WHETHER ENGINE STARTS (a) Make sure that the engine starts. HINT: If the engine does not start, check fuel pressure and spark. CHECK AIR FILTER (a) Check the air filter. HINT: If the air filter is dirty, clean or replace it. CHECK ENGINE IDLE SPEED (See page EM - 2) CHECK IGNITION TIMING (See page EM - 1) CHECK FUEL PRESSURE (See page FU - 3) CHECK FOR SPARK (See page IG - 1) CHECK COMPRESSION (See page EM - 2) 2. ES 3. 4. 5. 6. 7. 8. 9. EFI SYSTEM (3SZ-VE. 2 KNOCK CONTROL SENSOR IGNITION COIL ASSEMBLY COOLANT TEMPERATURE OXYGEN SENSOR CRANKSHAFT POSITION SENSOR CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY A135187J02 . K3-VE) LOCATION ENGINE ROOM R/B EFI FUSE FAN RELAY INSTRUMENT PANEL J/B ST RELAY E/G FUSE ES AM2 FUSE EFI RELAY F/P RELAY DLC THROTTLE BODY ASSEMBLY THROTTLE POSITION SENSOR ISCV COMBINATION METER VACUUM SENSOR CAMSHAFT POSITION SENSOR EVAP PURGE VSV INLET AIR TEMPERATURE SENSOR FUEL INJECTOR ASSEMBLY FUEL PUMP AUTOMATIC CONTROL COMPUTER ENGINE CONTROL COMPUTER OXYGEN SENSOR NO.ES–2 ENGINE CONTROL . 58 ES .58 ES .99 ES .43 ES .81 ES .94 ES .50 ES .103 .63 ES .47 ES . P0105/31 P0110/43 P0115/42 P0120/41 P0130/21 P0135/23 P0136/22 P0141/24 P0171/25 P0172/26 P0300/17 P0301/17 P0302/17 P0303/17 P0304/17 P0325/18 P0335/13 P0340/14 P0350/16 P0443/76 P0420/27 P0500/52 P0505/71 P0535/44 Diagnostic Item Air intake pressure sensor signal system Intake air temperature sensor signal system Coolant temperature sensor signal system Throttle sensor signal system Front O2 sensor signal system Front O2 sensor heater signal system Rear O2 sensor signal system Rear O2 sensor heater Fuel system (lean malfunction) Fuel system (rich malfunction) Misfire Misfire (#1 cylinder) Misfire (#2 cylinder) Misfire (#3 cylinder) Misfire (#4 cylinder) Knock sensor signal system Engine revolution sensor signal system Cam angle sensor signal system Ignition primary system EVAP purge VSV Catalyst deterioration Vehicle speed signal system ISC valve system A/C evaporator temperature sensor signal system Atmospheric pressure sensor signal system Ionic current system VVT control system (valve timing fail) VVT control (advance angle and retard angle fail) Timing chain control system Starter signal system Short to back up power source × × × Lamp Code Memory See Page ES . K3-VE) ES–3 DIAGNOSTIC TROUBLE CODE CHART DTC No.83 ES .58 ES .90 ES .100 ES .58 ES .66 ES .89 ES .53 ES .53 ES .ENGINE CONTROL .79 ES .28 ES .75 ES .47 ES .72 ES .EFI SYSTEM (3SZ-VE.38 ES .95 ES .35 ES .31 ES .58 ES .87 ES P1105/32 P1300/36 P1346/75 P1349/73 P1351/62 P1510/54 P1560/61 ES .69 ES . ES–4 DTC No. Crank position sensor system 1.12 IG . Injector 5.109 ES . Compression 6.EFI SYSTEM (3SZ-VE.129 ES .1 IG .115 FU .18 IG .10 ST . Starter assembly Engine does not crank 2.12 IG .18 EM .112 ES .112 ES . Injector 4.2 FU . See flowchart (fuel pump control system) Incomplete combustion (engine does not start) 2. Crank position sensor system 1.14 ES . Igniter system No initial combustion (engine does not start) 3.57 ES .112 ES . ENGINE CONTROL .106 P1656/74 ES . Igniter system Engine does not start but cranks normally) 4. Injector 7. See flowchart (fuel pump control system) Engine does not start (when cold) 3. Crank position sensor system Suspected Area See Page ST .115 FU . Igniter system 5. Igniter system 3.115 IG .12 IG .105 P1601/81 × ES .120 IG . Starter relay 3.14 . Crank position sensor system 1.21 AT .112 ES . K3-VE) Diagnostic Item Keyless system/ immobiliser system communication system (malfunction in ECU) Keyless / immobiliser system communication system (code does not match. See flowchart (fuel pump control system) 3. Injector 4. Spark plug 5.1 ES .12 IG .1 IG .129 ES .112 ES U0101/82 U0121/86 U0156/87 U1000/85 U1002/88 PROBLEM SYMPTOMS TABLE Symptom 1. Neutral start switch system 1.1 FU . Throttle body system 2. See flowchart (fuel pump control system) 4. Throttle body system 2.115 IG . communication error) OCV control system EAT/ CVT communication (reception) ABS communication (reception) Meter communication (receiving) EAT communication (transmission) CAN communication Lamp Code Memory See Page P1600/83 × ES .14 ES . Spark plug 6.14 ES . See flowchart (ECU power source) 2. 18 IG .115 FU . Engine control computer 4.1 FU .129 FU . Crank position sensor system 4.2 ES . Neutral start switch system 1.129 IG . See flowchart (fuel pump control system) Surging 2.17 ES .14 IG .EFI SYSTEM (3SZ-VE.129 ES .57 ES . Spark plug After fire 1. Injector 3.129 ES .18 ES . Throttle body system 2.17 FU . Crank position sensor system Fast idle problem 1. Injector 1.115 IG .115 ES . See flowchart (ECU power source) 3.1 IG . Igniter system ES–5 See Page ES .120 AT . Igniter system 4. Neutral start switch system Engine stall (when the shift lever is in the D position) 2. Throttle body system 3.14 ES .14 IG .1 IG . Spark plug 1.115 IG .14 IG . Igniter system 5. Injector 1. See flowchart (fuel pump control system) 4.129 AT .115 FU . Compression 5.115 IG . Crank position sensor system 5.17 IG .1 EM .16 IG . Throttle body system 3. See flowchart (fuel pump control system) 4. Spark plug 1. See flowchart (ECU power source) 3. See flowchart (fuel pump control system) Engine does not start (when warm) 3. Throttle body system Engine stall (right after slowing down) 3.115 FU .12 IG . Injector 2. Throttle body system 2. See flowchart (fuel pump control system) 6.12 ES . Throttle body system 2. Igniter system 2. Crank position sensor system 4. Throttle body system Idle speed is too low 2.18 ES .129 IG . K3-VE) Symptom Suspected Area 1. Igniter system 4.129 IG .1 AT . Spark plug 1. poor acceleration 2. Igniter system 1. See flowchart (fuel pump control system) Stumbling. Injector Idle is unstable 3.1 ES . Igniter system 1. Injector 1.129 ES . Spark plug 6.12 IG .129 ES .57 ES .1 FU .12 ES . Neutral start switch system 3.57 ES .12 ES .12 IG . Throttle body system Idle speed is too high 2. Injector 4. See flowchart (fuel pump control system) Engine stall (right after starting engine) 2.12 ES .ENGINE CONTROL .120 ES . Throttle body system Hunting 2. Spark plug 3. go to A.4.) 3 CHECK CAN COMMUNICATION SYSTEM (See page CA . K3-VE) HOW TO PROCEED WITH TROUBLESHOOTING 1 VEHICLE BROUGHT TO WORKSHOP ES 2 CONDUCT CUSTOMER PROBLEM ANALYSIS AND CHECK SYMPTOMS (See page ES . (1) If DTCs are present.) (a) (b) (c) Check for DTCs and freeze frame data. and make sure all ECU and sensors that are connected to the CAN communication are displayed on the screen.7.EFI SYSTEM (3SZ-VE. go to B.8. go to A.8). go to B. Recheck for DTCs.) (a) (b) If the location of the problem is determined. (2) If DTCs are not present. go to B. NG OK GO TO CAN COMMUNICATION SECTION 4 CHECK FOR DIAGNOSTIC TROUBLE CODES (See page ES . Delete DTCs and freeze frame data. A B GO TO STEP 12 GO TO STEP 9 6 PROBLEM SYMPTOMS TABLE (See page ES . go to A.ES–6 ENGINE CONTROL . If the location of the problem is not determined. B A GO TO STEP 7 5 TROUBLESHOOT USING DTCS OR DIAGNOSTIC TROUBLE CODE CHART (MAIN SUSPECTED AREAS) (a) (b) If the location of the problem is determined.) (a) Using the DS-II. . If the location of the problem is not determined.4. select CAN BUS DIAGNOSIS / CHECK ECU CONNECTED TO CAN BUS LINE screen (see CA . go to B. A B GO TO STEP 12 ES CHECK USING DS-II (See page ES .) 10 REPAIR PROBLEM AREAS 11 CHECK FOR DIAGNOSTIC TROUBLE CODES (See page ES . go to B. and use the customer problem analysis check sheet to make sure that the proper questions are asked when interviewing the customer about problems. If the location of the problem is not determined.16.ENGINE CONTROL . go to A.) (a) (b) (c) Select ECU data list or active test.EFI SYSTEM (3SZ-VE.) END CUSTOMER PROBLEM CHECK SHEET 1. . If the location of the problem is determined. 8 A B GO TO STEP 12 9 CHECK VOLTAGE OF ECU VOLTAGE AND CIRCUIT (See page ES .8. ANALYSIS Ask the customer about problems and concerns.) (a) (b) If the location of the problem is determined. go to A. (a) Follow the previous troubleshooting procedure.21. If the location of the problem is not determined. K3-VE) ES–7 A B GO TO STEP 12 7 BASIC INSPECTION (See page ES .1. it continues Person in charge Does not reoccur Technician Office A066666 CHECK / CLEAR DTCs 1.ES–8 ENGINE CONTROL . manholes etc. PREPARE FOR INSPECTION (a) Make sure that the throttle valve is fully closed. . Others ( ) Others Accelerator opening ( )% Ambient air temperature ( ) Weather ( ) Problem Frequency Always One time only Sometimes (_)times a day (_)times a week (_)times a month DTC Inspection Malfunction Indicator Lamp (MIL) Off/On Normal Code(s) Malfunction code(s)(all noted) Fuel pressure when engine stopped Fuel pressure 1 min.EFI SYSTEM (3SZ-VE. K3-VE) Engine Problem Diagnosis Check Sheet Model VIN Accessories Previous vehicle Main region/purpose of travel Date vehicle brought in Date registered Date problem first occurred Service history Registration No. Odometer reading No/Yes (__times) km ES Customer profile/characteristics Description of symptoms Warning light illumination Driving Conditions Starting off Cruising Increasing speed Decreasing speed Braking Turning Stopped Not related Others ( ) Off/On ( ) System Conditions Speed problem first occurred( )km/h Shift position ( ) range Starting off Immediately after start off ( ) min after start Check After ( )min driving Results Cold Warm Idling Others ( ) Additional Items Road Conditions Level Uphill Downhill Dry paved road Wet paved road Unpaved/rough road Snowy/icy road Uneven. after engine stopped Problem details Inspection Driving conditions and location when problem first Results occurred and reoccurred Reoccurrence conditions Occasional Always Dealer Name Once problem occurs. Turn off the air conditioner. select CHECK DTCs/ FREEZE FRAME DATA on the DIAGNOSIS . ES 3. . • The CHECK MODE cannot be used.) • The time series freeze frame data is helpful in troubleshooting when the symptom cannot be reproduced. • If the check engine warning light comes on at engine speed of approximately1000 r/min or more and no DTC is output. (See page ES . 0. or the computer. and check for DTCs. and select the DTC that records the freeze data (marked !) from the DTC / FREEZE DATA screen. VC terminal. HINT: • The engine condition (ECU data) before and after DTCs are detected can be checked using the time series freeze frame data. see IN . (c) Turn the DS-II power ON. DS Move the shift lever to the N or P position. DLC A136722J02 CHECK DTCs (using DS-II) (a) Connect the DS-II to the DLC.5 Sec.25 Sec. 1.2. (b) Turn the ignition switch to the ON position. (c) Turn the ignition switch to the ON position. 2.EFI scree. • If the check engine warning light remains on. (b) Using the diagnosis check wire. CHECK FREEZE DATA (using DS-II) (a) Using the DS-II. the computer may be malfunctioning. (d) Following the prompts on the screen. there may be a malfunction in the TC terminal.ENGINE CONTROL . 2 Sec. HINT: If a DTC is displayed on the DS-II. the wire harness may have a short circuit (due to being pinched or for other reasons) or the computer may be malfunctioning. and count the number of flashes of the check engine warning light.5 Sec.5 Sec. Doing so may cause malfunctions. Abnormal Code (Example [11] [23] ) Repeated 4 Sec. short terminals 12 (EFIT) and 4 (E) of the DLC. HINT: • If the indicator light does not indicate a DTC (the light does not blink). 0. SST 09843-18020-000 NOTICE: • Do not connect the diagnosis check wire to the wrong terminals.10. • If an irrelevant DTC is detected. Disconnect diagnosis check wire No. follow the prompts on the screen. Normal Code 0.30. • Use only the dedicated diagnosis check wire. 0. EFIT E G100942 CHECK DTCs (using the check engine warning light) NOTICE: • Turn the ignition switch to the ON position before reading the DTCs. C040092J07 (d) 4.5 Sec.EFI SYSTEM (3SZ-VE. and check that the check engine warning light is flashing. turn the ignition switch to the OFF position and recheck. (a) Turn the ignition switch off. K3-VE) ES–9 (b) (c) 2.25 Sec. and the highlighted codes contain freeze data. !. ES Engine Room R/B EFI Fuse A133909J01 Freeze Frame Data 1.EFI SYSTEM (3SZ-VE. CHECK FREEZE FRAME DATA (a) If the symptom can not be reproduced even though a DTC is detected. do not delete the DTCs using the DS-II. • Until the cause of problems are clarified. • Time series freeze frame data can be checked when TIME SERIES FREEZE DATA CAN BE CHECKED is displayed on the freeze data screen. CHECK TIME SERIES FREEZE FRAME DATA (a) Select the item to check the desired time series freeze data on the freeze data screen. (3) Select DIAGNOSIS → EFI → DTC / FREEZE DATA. (4) Detected DTCs will be displayed on the DTC screen. 1 point for before inspection. NOTICE: • Be sure to clear the DTCs and check that a normal code is output after the EFI system inspection is finished. • The time series freeze frame data can display up to 3 data points. HINT: • The previous version of freeze data recorded ECU data only when DTCs occurred (when detected). K3-VE) 5. HINT: The DTCs are marked with the character. (5) Select the DTCs to check the desired freeze data. • Do not delete the DTCs by clearing the battery (removing a fuse) until the cause of the problems is clarified. turn the ignition switch off. NOTICE: • If the DTCs cannot be deleted. including the DTC inspection point.5 Second Intervals) A138074J01 3. (1) Connect the DS-II to the DLC. • Write the DTCs down before deleting them. and 1 point after inspection. 6. then perform the procedure again. DELETE DTCs (by removing a fuse) (a) The recorded codes can be deleted by removing the EFI fuse (15A) for more than 60 seconds after turning the ignition switch to the OFF position. DELETE RECORDED DTCs (using DS-II) (a) Following the prompts on the screen. but time series freeze frame data also records ECU data before and after DTCs are detected. FREEZE DATA CHART Shorted Item ECT MAP r/min 2. check the freeze frame data. Item Coolant temperature Air intake pressure Engine speed . select the DTC / FREEZE DATA screen and delete the DTCs. Time Sequence Of Data Recording Timing DTC Detection Point ▼ 1 2 3 :Time Sequence of Data Recording Point (Recorded At 0. • Write the DTCs down before deleting them. (2) Turn the ignition switch to the ON position.ES–10 ENGINE CONTROL . EFI SYSTEM (3SZ-VE.ENGINE CONTROL . K3-VE) Item Vehicle speed Ignition timing advance angle Injection volume Injection timing Shorted Item VS ITA TAUX TAUZ ES–11 ES . 2 2 Injector No. 4 1 2 21 #40 THW 54 2 Coolant Temperature 1 2 EVAP Purge VSV 1 16 THA PRG E2 55 19 20 125 1 Inlet Air Temperature Sensor 2 2 Indicator E1 3 ISCV 1 65 ISC E01 E1 Engine Control Computer A135479J01 . 2 1 #20 VC Injector No.5A STSW 1 2 Crankshaft Position Sensor EFI Relay N2+ N227 +B KNK 35 To Fuel Pump OX1 OXH1 FC1 58 127 1 2 Camshaft Position Sensor 121 2 F/P Relay Knock Control Sensor 1 123 15 2 1 Oxygen Sensor 4 3 To +B Injector No. 3 1 2 22 #30 VTH 56 53 1 3 Throttle Position Sensor 2 Injector No.ES–12 ENGINE CONTROL . 1 1 2 24 #10 OX2 2 23 18 1 Oxygen Sensor NO.EFI SYSTEM (3SZ-VE. K3-VE) CIRCUIT DIAGRAM General Export Starter AM2 ST Relay Ignition Switch A/T ECU ES Battery MAIN EFI 15A E/G 10A 120 38 39 IGSW BAT N1+ MRO N1107 59 128 ST 7. 2 Cylinder) 3 62 IG2 DEF 11 Defogger Defogger Switch To DEF Fuse ES 1 4 Ignition Coil Assembly (No.EFI SYSTEM (3SZ-VE. 1 Cylinder) 3 63 IG1 STP 43 Stop Light STP 10A 1 4 Ignition Coil Assembly (No. 4 Cylinder) 3 To Ignition Plugs E2PM ACEV 45 116 1 A/C Evaporator Temperautre Sensor 2 Engine Check Light 13 W E21 EPS FAN Relay 37 Fan Motor FAN1 SIO2 12 P/S Oil Pressure Switch 117 9 Immobiliser ECU* FPOF 135 44 Airbag ECU Alternator ALT BLW ACSW 42 45 To A/C 9 Meter ECU 8 HCAN LCAN REV 118 Tachometer 7 A/T ECU 6 4 CANH CANL ATNE EFIT 113 DLC Engine Control Computer : Immobiliser Equipped Vehicles A135480J01 . K3-VE) ES–13 General Export Stop Light Switch Assembly To Battery To IG2 1 4 Ignition Coil Assembly (No. 3 Cylinder) 3 61 IG3 OCV+ 60 IG4 VCPM PIM 57 52 122 3 2 Vacuum Sensor 1 OCV26 25 1 OCV 2 1 4 Ignition Coil Assembly (No.ENGINE CONTROL . 1 1 2 24 #10 OX2 Injector No. 2 Injector No.ES–14 ENGINE CONTROL .5A STSW A/T ECU ES Battery 38 39 1 2 Crankshaft Position Sensor EFI Relay N2+ N227 +B KNK 34 To Fuel Pump OX1 OXH1 FAN2 58 127 1 Camshaft Position 2 Sensor 121 2 F/P Relay Knock Control Sensor 1 123 15 2 1 Oxygen Sensor 4 3 To B Injector No. 3 1 Injector No.EFI SYSTEM (3SZ-VE. 2 1 2 23 #20 VC 2 22 VTH #30 54 2 Coolant Temperature Sensor 1 56 53 1 3 Throttle Position Sensor 2 OXH2 18 14 2 1 4 3 To B Oxygen Sensor NO. 4 1 2 21 #40 THW 2 EVAP Control VSV 1 16 THA PRG E2 55 19 20 125 1 Intake Air Temperature 2 Sensor 2 To E1 3 ISCV 1 65 ISC E01 E1 Engine Control Computer A138429J01 . K3-VE) EU Specifications Starter AM2 ST Relay Ignition Switch MAIN EFI15A E/G 10A 120 IGSW BAT N1+ MRO N1107 59 128 ST 7. 4 Cylinder) 3 2 61 48 To Ignition Plugs Condensor E2PM ACEV 45 116 1 A/C Evaporator Temperature Sensor 2 Engine Check Light 13 W E21 PST Fan Relay 37 Fan Motor FAN1 SIO2 12 P/S Oil Pressure Switch 117 9 Immobiliser ECU FPOF 135 44 Airbag ECU Alternator ALT BLW ACSW 42 45 To A/C 9 Meter ECU 8 HCAN LCAN REV 118 Tachometer 7 A/T ECU 6 4 CANH CANL ATNE EFIT 113 DLC A/T * To Deicer Engine Control Computer * : Specifications For Cold Region Vehicles A138430J01 . 2 Cylinder) 3 2 62 IG2 50 ICMB2 Defogger Switch To DEF Fuse DEF 11 Defogger ES 2 1 Ignition Coil Assembly 4 (No. 1 Cylinder) 1 Ignition Coil Assembly 4 (No. K3-VE) ES–15 EU Specifications Stop Light Switch Assembly To IG2 63 51 IG1 ICMB1 STP 43 Stop Light To Battery STP 10A 1 3 2 Ignition Coil Assembly 4 (No. 3 Cylinder) 3 2 61 IG3 49 ICMB3 OCV+ OCVIG4 ICMB4 VCPM PIM 57 52 122 3 Intake Air 2 Pressure Sensor 1 26 25 1 OCV 1 Ignition Coil Assembly 4 (No.ENGINE CONTROL .EFI SYSTEM (3SZ-VE. ES–16 ENGINE CONTROL .EFI SYSTEM (3SZ-VE. K3-VE) ECU TERMINALS Connector A Connector B Connector C Connector D 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 69 68 67 66 65 64 63 62 61 60 106105 104103102101100 99 98 97 59 58 57 56 55 54 53 52 51 50 49 48 96 95 128127 94 93 126125 92 91 90 89 124123 122 121 47 46 45 44 43 42 41 40 39 38 88 87 86 85 84 83 82 81 80 79 78 120119 118 117 116 115 114 113 37 36 35 34 33 32 31 30 29 28 77 76 112 111 75 74 73 72 71 70 110109 108107 ES 135134 133132 131130129 Connector A Connector B *2 +B OCV+ OCV- #10 ISC #20 IG1 #30 IG2 IG3 #40 IG4 E01 E2 OX2 PRG *2 OXH1 *2 *2 OXH2 *2 N1+ N2+ VCPM VC THA THW VTH PIM ICM B1 ICM ICM ICM B2 B3 B4 ALT ALTC N1- N2- E1 PST OX1 E2PM KNK Connector C Connector D W DEF ACEV FPOF STP BLW HCAN LCAN CANH CANL *1 *2 ATNE ACSW A/T MRO BAT FAN1 MGC FC1 FAN2 IGSW REV SIO2 E21 EFIT STSW *1 : Only For General Export *2 : Only For Europe A139505J01 . ignition switch is ON Engine is idling Engine is idling Engine is idling Engine is idling Engine is idling Engine is idling Engine is idling Engine is idling Engine is idling Engine is idling O2 sensor is warmed up. (the check engine light is on) Starter switch is ON Throttle valve is fully closed Throttle valve is fully opened Engine is idling Air conditioner switch is OFF → ON After engine idles for more than 5 seconds Standard (V) 10-14 10-14 10-14 10-14 4. constant engine speed of 3000 r/min O2 sensor is warmed up.5-4.EFI SYSTEM (3SZ-VE.8 3. K3-VE) ES–17 ECU TERMINAL VOLTAGE CHART (EFI SYSTEM) Terminal Name (Terminal No.5-5.5 10-14 0.3 10-14 0-3.ENGINE CONTROL .3-1.2-5.0 Pulse is generated (Waveform 7) 0-1 ES .4-0.3 0. ignition switch is ON Engine is stopped. constant engine speed of 3000 r/min Engine is idling Coolant temperature 60 to 120°C Engine is warmed up Engine is idling (the check engine light is off) Disconnect the connector of the coolant temperature sensor.5 Pulse is generated (Waveform 1) Pulse is generated (Waveform 1) Pulse is generated (Waveform 1) Pulse is generated (Waveform 1) Pulse is generated (Waveform 2) Pulse is generated (Waveform 3) Pulse is generated (Waveform 4) Pulse is generated (Waveform 4) Pulse is generated (Waveform 4) Pulse is generated (Waveform 4) Pulse is generated (Waveform 5) Pulse is generated (Waveform 5) Pulse is generated (Waveform 6) 0. ignition switch is ON Engine is stopped.) BAT ←→ E1 (38←→125) +B ←→ E1 (27←→125) IGSW ←→ E1 (120←→125) MRO ←→ E1 (39←→125) VC ←→ E2 (56←→19) IG1 ←→ E1 (63←→125) IG2 ←→ E1 (62←→125) IG3 ←→ E1 (61←→125) IG4 ←→ E1 (60←→125) N1+ ←→ N1(59←→128) N2+ ←→ N2(58 ←→ B127) # 10 ←→ E1 (24←→125) # 20 ←→ E1 (23←→125) # 30 ←→ E1 (22←→125) # 40 ←→ E1 (21←→125) OX1 ←→ E2 (123←→19) OX2 ←→ E2 (18←→19) KNK ←→ E2 (121←→19) THW ←→ E2 (54←→19) THA ←→ E2 (55←→19) W ←→ E1 (13←→125) W ←→ E1 (13←→125) STSW ←→ E1 (107←→125) VTH ←→ E2 (53←→19) VTH ←→ E2 (53←→19) ISC ←→ E1 (65←→125) OXH1 ←→ E1 (15←→125) Input / Output Input Input Input Input Input Output Output Output Output Input Input Output Output Output Output Input Input Input Input Input Output Output Input Input Input Output Output Measurement condition Always Engine is stopped. ignition switch is ON Engine is stopped. ES–18 Terminal Name (Terminal No.5 3.2 Pulse is generated (Waveform 9) 10-14 Below 1 Pulse is generated (Waveform 10) 10-14 0-1 10-14 10-14 4.5-5. ignition switch is ON Engine is stopped.1-4. K3-VE) Standard (V) 10-14 10-14 0-0.8 Continuity Continuity Continuity Continuity Measurement condition Engine is stopped. ignition switch is ON Sensor adjusted to stable ambient temperature Air conditioning is ON Always (continuity check) Always (continuity check) Always (continuity check) Always (continuity check) ES ATNE ←→ E1 (16←→125) FC1 ←→ E1 (35←→125) FC1* ←→ E1 (35←→125) REV ←→ E1 (118←→125) FAN1 ←→ E1 (37←→125) FAN1 ←→ E1 (37←→125) OCV+ ←→ OCV(26←→25) EPS ←→ E1 (12←→125) EPS ←→ E1 (12←→125) ALTC ←→ E1 (134←→125) ALT ←→ E1 (135←→125) VCPM ←→ E2PM (57←→122) PIM ←→ E2PM (52←→122) ACEV ←→ E21 (45←→116) E1 ←→ Body ground (125) E2 ←→ Body ground (19) E01 ←→ Body ground (20) E21 ←→ Body ground (116) *: FAN2 terminal for European models . ignition switch is ON Engine is warmed up.15-4.) OXH1 ←→ E1 (15←→125) STP ←→ E1 (43←→125) STP ←→ E1 (43←→125) ATNE ←→ E1 (16←→125) Input / Output Output Input Input Output Output Output Output Output Output Output Output Input Input Input Input Input Input Input Ground Ground Ground Ground ENGINE CONTROL . ignition switch is ON Engine is idling Engine is idling Magnetic clutch is OFF Magnetic clutch is ON Engine is stopped.EFI SYSTEM (3SZ-VE.1 0. ignition switch is ON Engine is stopped. accelerator pedal is depressed Engine is stopped. ignition switch is ON Engine is idling Steering wheel is centered Engine is idling Steering wheel is turned Engine is stopped. ignition switch is ON Stop light switch is ON Stop light switch is OFF Engine is stopped.5 10-14 Pulse is generated (Waveform 8) 10-14 Below 1. IG2. • As the engine speed increases. the waveform cycle becomes shorter. does not include noise or chattering waveforms. 20 ms/DIV Engine is idling Tester Connection Tool setting Measurement condition A134284 HINT: • As the engine speed increases.ENGINE CONTROL . (c) Waveform 3 N2+ ←→ N22 V/DIV. 10 ms/DIV Engine is idling after warming up Tester Connection Tool setting Measurement condition A134282 HINT: • As the engine speed increases. # 40 ←→ E1 20 V/DIV. IG4 ←→ E1 5 V/DIV. each waveform cycle becomes shorter.EFI SYSTEM (3SZ-VE. K3-VE) ES–19 1. # 30. (d) Waveform 4 # 10. IG3. the waveform cycle becomes shorter. (b) Waveform 2 N1+ ←→ N12 V/DIV. 20 ms/DIV Engine is idling Tester Connection Tool setting Measurement condition HINT: As the engine speed increases. Oscilloscope waveform (a) Waveform 1 IG1. • Noise may cause DTCs to be recorded. • As the engine speed increases. • The oscilloscope waveform shown as an example. # 20. the waveform cycle becomes shorter. A134285 . each waveform cycle becomes shorter. 20 ms/DIV Engine is idling ES Tester Connection Tool setting Measurement condition A134283 HINT: • As the engine speed increases. the waveform cycle becomes shorter. • Noise may cause DTCs to be recorded. Air Conditioner ON A134289 . 1 ms/DIV Engine is idling. air conditioning is OFF → ON Air Conditioner OFF Tester Connection Tool setting Measurement condition HINT: The duty ratio changes if the air conditioning is turned ON.ES–20 ENGINE CONTROL . 1 ms/DIV. • The waveform amplitudes differ slightly depending on the vehicle. Engine is idling Tester Connection Tool setting Measurement condition A134287 HINT: • The oscilloscope waveform shown as an example does not include noise or chattering waveforms. 500 ms/DIV Oxygen sensor is warmed up. OX2 ←→ E1 0.EFI SYSTEM (3SZ-VE.2 V/DIV. K3-VE) (e) Waveform 5 OX1. constant engine speed of 3000 r/min Tester Connection Tool setting Measurement condition HINT: Repeat between 0 (LEAN) ←→ 1(RICH)V A134286 ES (f) Waveform 6 KNK ←→ E1 1 V/DIV. (g) Waveform 7 ISC ←→ E1 5 V/DIV. K3-VE) ES–21 (h) Waveform 8 ATNE ←→ E1 5 V/DIV. it is very difficult to indicate specific standard values (reference values). OFF: off Inspection Condition Reference Value Problem Area Check engine warning light is on → off ON → OFF W voltage . A134291 (j) Waveform 10 OCV+ ←→ OCV5 V/DIV. or the state of the vehicle due to wear and tear. the waveform cycle becomes shorter.Therefore. in some cases. 10 ms/DIV Engine is idling ES Tester Connection Tool setting Measurement condition HINT: As the engine speed increases. A134290 (i) Waveform 9 REV ←→ E1 5 V/DIV. and determine problems wholistically by considering all suspected items on the data list.ENGINE CONTROL . idle the engine for 10 minutes and recheck the waveform. 50 ms/DIV Engine is idling Tester Connection Tool setting Measurement condition HINT: If the waveform shown in the illustration is not indicated. 1 ms/DIV Engine is idling Tester Connection Tool setting Measurement condition HINT: As the engine speed increases. • For delicate symptoms such as stumbling. CARB SPECIFIED DATA CHART Item (Shorted Item) MIL status (MIL) Item Description •Illumination condition of the check engine warning light •ON: on.EFI SYSTEM (3SZ-VE. ECU DATA LIST CHART NOTICE: • As the data list values may vary widely depending on slight measurement errors. obtain and compare multiple test data using the same vehicle under the same conditions. rough idle. an error may occur within the range of reference values. A134292 ECU DATA LIST / ACTIVE TEST 1. the waveform cycle becomes shorter. the measurement environment. ES–22 Item (Shorted Item) Number of power train trouble codes (DIAG) ENGINE CONTROL . but at least one oxygen sensor is malfunctioning. OFF: no Inspection Condition Reference Value Problem Area - 0 - ES Fuel system status of bank 1 (FS1) Engine is idling after warming up CL OX1 Voltage Fuel system status of bank 2 (FS2) - - - O2 sensor position (O2S11) O2 sensor position (O2S12) O2 sensor position (O2S13) O2 sensor position (O2S14) O2 sensor position (O2S21) O2 sensor position (O2S22) - ON - - ON - - - - - - - - - - - - - .Fault: open loop due to detected system malfunction •CL.Drive: open loop due to drive condition •OL . K3-VE) Item Description •Indicates the number of DTCs •Displayed range: 0 to 255 •Fuel system status of bank 1 is indicated •OL (open loop): conditions are not satisfied to go from open loop to closed loop •CL (close loop): oxygen sensor is used as feedback for fuel control •OL . Only one oxygen sensor is used for fuel control •Fuel system status of bank 2 is indicated •OL (open loop): conditions are not satisfied to go from open loop to closed loop •CL (close loop): oxygen sensor is used as feedback for fuel control •OL .Fault: close loop. OFF: no •Existence of bank 1 sensor 4 is indicated •ON: yes.Fault: open loop due to detected system malfunction •CL.Fault: close loop. OFF: no •Existence of bank 2 sensor 2 is indicated •ON: yes. OFF: no •Existence of bank 2 sensor 1 is indicated •ON: yes. but at least one oxygen sensor is malfunctioning. OFF: no •Existence of bank 1 sensor 3 is indicated •ON: yes. Only one oxygen sensor is used for fuel control •Existence of bank 1 sensor 1 is indicated •ON: yes.EFI SYSTEM (3SZ-VE.Drive: open loop due to drive condition •OL . OFF: no •Existence of bank 1 sensor 2 is indicated •ON: yes. engine is stopped 70 to 104 kPa •VCPM voltage •PIM voltage Air intake pressure (MAP) Engine is warmed up and idling. K3-VE) Item (Shorted Item) O2 sensor position (O2S23) O2 sensor position (O2S24) OBD requirements (OBD) Calculated load value (LOAD) ES–23 Item Description •Existence of bank 2 sensor 3 is indicated •ON: yes. shift lever is in N position) Engine speed is 2000 r/ min (air conditioner is OFF.5 to ATDC 64° •Indicates ignition timing of the No. shift lever is in N position) Engine is idling (air conditioner is OFF. OFF: no OBD requirements are indicated (EOBD) •Engine load amount is indicated •Displayed range: 0 to 100% •Engine load amount is indicated •Displayed range: 0 to 100% •Indicates engine coolant temperature •Displayed range: -40 to 140°C •Indicates engine coolant temperature •Displayed range: -40 to 140°C •Indicates engine coolant temperature •Displayed range: -40 to 140°C •Air intake pressure is indicated as absolute pressure •Displayed range: 0 to 120 kPa •Air intake pressure is indicated as absolute pressure •Displayed range: 0 to 120 kPa Indicates the engine speed Indicates the engine speed Indicates vehicle speed Indicates vehicle speed •Indicates ignition timing of the 1-cylinder •Displayed range: BTDC 63.EFI SYSTEM (3SZ-VE.5 to ATDC 64° •Indicates ignition timing of the No.1 cylinder •Displayed range: BTDC 63. shift lever is in N position) Engine speed is 2000 r/ min (air conditioning is OFF. air conditioner is OFF Engine is stopped (IG ON) Constant engine speed The vehicle is stopped Vehicle is running at constant speed Engine is cranking (air conditioner is OFF.ENGINE CONTROL .1 cylinder •Displayed range: BTDC 63. shift lever is in N position) Engine warmed up completely EOBD - 0-5% Air cleaner condition Throttle valve condition ES Calculated load value (LOAD) 5-7% Air cleaner condition Throttle valve condition Coolant temperature (ECT) 80 to 102°C THW Voltage Coolant temperature (ECT) Short circuit in sensor 119 to 140°C THW Voltage Coolant temperature (ECT) Short circuit in sensor -40°C THW voltage Air intake pressure (MAP) Ignition switch is in ON position.5 to ATDC 64° Inspection Condition Reference Value Problem Area - - - - - - Engine is idling (air conditioner is OFF. OFF: no •Existence of bank 2 sensor 4 is indicated •ON: yes. shift lever is in N position) 20 to 40 kPa •VCPM voltage •PIM voltage Engine speed (R/MIN) Engine speed (R/MIN) Vehicle speed (VS) Vehicle speed (VS) Ignition timing advance angle (ITA) Ignition timing advance angle (ITA) Ignition timing advance angle (ITA) 0 r/min No significant fluctuation 0 km/h No significant fluctuation N voltage N voltage SPD voltage SPD voltage 4-8° IG voltage Each sensor voltage 0-15° IG voltage Each sensor voltage 20-40° IG voltage Each sensor voltage . 95 V OX2 voltage RrO2 short-term fuel trim (O2RP) 2500 r/min Constant engine speed 10-70% OX2 voltage Driven distance at time of malfunction (DWM) - 0 to 65535 km - Evaporation purge output (EVAP) Engine is idling after warming up 0% PRG voltage Voltage of each sensor Barometric pressure (BARO) Ignition switch is in ON position. VTH voltage (Throttle position sensor No.2% •Indicates distance driven at time DTC is recorded •Displayed range: 0 to 65535 km •Indicates duty ratio of evaporation purge VSV output •Displayed range: 0 to 100 % •Indicates barometric pressure •Displayed range: 0 to 255 kPa •Indicates battery voltage •Displayed range: 0 to 16 V Inspection Condition Reference Value Problem Area IG ON Equivalent to ambient temperature THW voltage Intake air temperature (IAT) Short circuit in sensor 119 to 140°C THW voltage ES Intake air temperature (IAT) Short circuit in sensor -40°C THW voltage Opening angle of absolute throttle sensor (TP) Opening angle of absolute throttle sensor (TP) FrO2 sensor output voltage (O2FV) Accelerator pedal fully depressed (IG ON) Accelerator pedal fully released (IG ON) 10-24% VC.ES–24 Item (Shorted Item) Intake air temperature (IAT) ENGINE CONTROL . VTH voltage (Throttle position sensor No.1 to 0.0 V OX1 voltage FrO2 short-term fuel trim (O2FP) 2500 r/min Constant engine speed -20-20% OX1 voltage RrO2 sensor output voltage (O2RV) 2500 r/min Constant engine speed 0.EFI SYSTEM (3SZ-VE.2% •Indicates rear O2 sensor output voltage •Displayed range: 0 to 1. engine is stopped 73 to 110 kPa - Power source voltage (BAT) IG ON 11 to 14 V BAT voltage DMC SPECIFIED DATA CHART .275 V •Indicates rear O2 sensor feedback trim factor •Displayed range: -100 to 99.1) VC.1) 64-96% 2500 r/min Constant engine speed 0 to 1. K3-VE) Item Description •Indicates air temperature •Displayed range: -40 to 140°C •Indicates intake air temperature •Displayed range: -40 to 140°C •Indicates intake air temperature •Displayed range: -40 to 140°C •Indicates opening angle of throttle valve 1 •Displayed range: 0 to 100 % •Indicates opening angle of throttle valve 1 •Displayed range: 0 to 100 % •Indicates front O2 sensor output voltage •Displayed range: 0 to 1.275 V •Indicates front O2 sensor feedback trim ratio •Displayed range: -100 to 99. OX1 voltage 1. shift lever is in N position) Reference Value OFF → ON OFF → ON Problem Area Voltage of each switch Voltage of each switch 1. OX1 voltage 1.3 to 1.EFI SYSTEM (3SZ-VE.75 to 1.8 msec PIM.0 to 1. OX1 voltage ES 1.25 V Indicates whether the idle switch is ON or OFF (if the vehicle does not have an idle switch. shift lever is in N position) Engine speed is 2000 r/min (air conditioner is OFF. shift lever is in N position) Engine speed is 3000 r/min (air conditioner is OFF. OX1 voltage ISC duty ratio (ISCD) • • 6-14% VC voltage VTH voltage THW voltage VC voltage VTH voltage THW voltage ISC duty ratio (ISCD) • • 20-60% Actual displacement angle (VT) Actual displacement angle (VT) Target displacement angle (VTT) Target displacement angle (VTT) O2 sensor signal (OX) Engine is idling after warming up 0-5° OCV voltage • • Engine is warmed up and running at constant speed 0-10° OCV voltage • • Engine is idling after warming up 0-5° OCV voltage • • Engine is warmed up and running at constant speed 0-10° OCV voltage • • 2500 r/min Constant engine speed - OX voltage • VF monitor (VF) • • 2500 r/min Constant engine speed 0. K3-VE) Item (Shorted Item) Electrical load (DSW) Air conditioner signal [A/C] Injection timing (TAUZ) Injection timing (TAUZ) Injection timing (TAUZ) Injection timing (TAUZ) ES–25 Item Description Indicates that there is electrical load Indicates that air conditioner is operating • • • • • • • • • Indicates injection timing Displayed range: 0 to 200 msec Indicates injection timing Displayed range: 0 to 200 msec Indicates injection timing Displayed range: 0 to 200 msec Indicates injection timing Displayed range: 0 to 200 msec Indicates duty ratio of ISC drive signal Displayed range: 0 to 100% Indicates duty ratio of ISC drive signal Displayed range: 0 to 100% Indicates actual displacement angle of VVT Displayed range: 0 to 50° Indicates actual displacement angle of VVT Displayed range: 0 to 50° Indicates target displacement angle of VVT control Displayed range: 0 to 50° Indicates target displacement angle of VVT control Displayed range: 0 to 50° Indicates whether air-fuel ratio measured by front O2 sensor is lean or rich Indicates learned value of air-fuel ratio compensation Displayed range: 0.75 to 1.5 msec PIM.25 V OX voltage Idle signal (IDL) Accelerator pedal fully depressed → released ON → OFF VC voltage VTH voltage . THW. THW. the ON status is when the throttle is completely closed from the open status) Inspection Condition Light.4 to 1. defogger OFF → ON Air conditioner OFF → ON Engine is cool when started → completely warmed up Engine warmed up and idling (air conditioner is OFF. THW. THW.4 to 2.ENGINE CONTROL . shift lever is in N position) Engine warmed up and idling (air conditioner is OFF.8 msec PIM. shift lever is in N position) Engine warmed up and idling (air conditioner is ON.5 msec PIM. shift lever is in N position) Engine warmed up and idling (air conditioner is ON.ES–26 Item (Shorted Item) • ISC learned value (DLRN) • • ISC learned value (DLRN) Purge trim ratio (FPG) • • • • • • • • • • • • Control duty ratio (DVT) • • Control duty ratio (DVT) • • • • • • • • • • • ENGINE CONTROL .EFI SYSTEM (3SZ-VE. K3-VE) Item Description Indicates ISC learned value Displayed range: 0 to 100% Indicates ISC learned value Displayed range: 0 to 100% Indicates purge trim ratio Displayed range: 0 to 0. Item Fuel pump Purge VSV All VSV ACTIVE TEST Constraint Condition - Condition Fuel pump is ON (active) / OFF (stopped) Purge control VSV is ON (current) / OFF (no current) All VSV for purge control are ON (current) / OFF (no current) .5V Indicates knock sensor trim advance angle Displayed range: 0 to 20° Indicates knock sensor trim advance angle Displayed range: 0 to 20° Indicates VVT angle equivalency Displayed range: 15 to 90° Indicates VVT angle equivalency Displayed range: 15 to 90° Indicates duty ratio of VVT control Displayed range: 0 to 100% Indicates duty ratio of VVT control Displayed range: 0 to 100% Indicates the actual air intake pressure Displayed range: 0 to 120 kPa Indicates the actual air intake pressure Displayed range: 0 to 120 kPa Indicates the actual air intake pressure Displayed range: 0 to 120 kPa Indicates power steering signal input Indicates stop lamp signal input Indicates the number of DTCs Displayed range: 0 to 255 Inspection Condition Engine warmed up and idling (air conditioner is OFF. shift lever is in N position) Engine is idling after warming up Engine is idling after warming up 4000 r/min Constant engine speed Engine is warmed up and idling 3000 r/min Constant engine speed Reference Value Problem Area 6-14% ISC voltage Voltage of each sensor 6-14% ISC voltage Voltage of each sensor PRG voltage Voltage of each sensor KNK voltage 0 ES Knocking trim advance angle (AKNK) Knocking trim advance angle (AKNK) TVVT angle equivalency (VTB) TVVT angle equivalency (VTB) 0-3° 0-3° KNK voltage 15-52° VTH voltage 15-62° VTH voltage Engine is warmed up and idling 20-50% VTH voltage 3000 r/min Constant engine speed 20-50% VTH voltage Actual air intake pressure (PMVTB) Actual air intake pressure (PMVTB) Actual air intake pressure (PMVTB) Power steering signal (PST) Stop lamp signal (STP) Number of DTCs (DIAG) Engine is stopped 80 to 110 kPa PIM voltage Engine is warmed up and idling 20 to 40 kPa PIM voltage 2000 r/min Constant engine speed Steering wheel is centered → turned Brake pedal is released → depressed - 19 to 39 kPa PIM voltage OFF → ON OFF → ON EPS voltage STP voltage - - 2. Diagnostic Trouble Code • Fail-safe Operation Vacuum sensor value is the pressure estimated from the throttle opening angle and the engine speed. use the signal from the vacuum sensor as the constant value. Use the signal from the coolant temperature sensor as the constant value. K3-VE) Item T terminal Radiator fan ISC stepper Condition T terminal is ON (short) / OFF (short released) Radiator fan is ON (active) / OFF (stopped) ISC active duty ratio setting (50 % open / 5 % open) Constraint Condition Vehicle is stopped. Turn off the air conditioner. engine is idling ES–27 FAIL-SAFE CHART If the codes shown below are recorded on the ECU. Stop fuel injection and ignition. Return to normal condition Return to normal condition Return to normal condition Return to normal condition Return to normal condition Return to normal condition Return to normal condition Return to normal condition Return to normal condition . Fail-safe Mode Deactivation Condition ES P0105/31 • Return to normal condition P0110/43 P0115/42 P0120/41 P0136/22 P0325/18 P0350/16 P0535/44 P1600/83 P1601/81 P1656/74 Use the signal from the intake air temperature sensor as the constant value. decrease the fuel amount.ENGINE CONTROL . If both the throttle opening angle and the engine speed exceed the constant value. it will go to a fail-safe mode. Lag the ignition timing.If the signal from the throttle position sensor is abnormal. Set feedback control to open control. Use the signal from the throttle position sensor as the constant value. Stop the fuel injection to the cylinder that has ignition signal problems. Prohibit the oil control valve current control.EFI SYSTEM (3SZ-VE. 3. the vacuum sensor detects the intake manifold pressure as voltage. ES Voltage (V) (3. so it is not effected by high latitude or other barometric pressure changes. 4. IG ON Open or short to vacuum sensor circuit 0. 2. but it detects the absolute pressure of the inside of the intake manifold.Diagnosis Condition 2.Other 1.Malfunction Condition 3.EFI SYSTEM (3SZ-VE. a constant standard air-fuel ratio is maintained under all conditions. the engine control computer determines the basic injection and ignition timing based on this voltage.The vacuum sensor does not detect barometric pressure as a standard value.96) 3. DTC Detection Condition 1. K3-VE) DTC DESCRIPTION P0105/31 AIR INTAKE PRESSURE SENSOR SIGNAL SYSTEM Using a built-in sensor.ES–28 ENGINE CONTROL .Therefore.5 seconds or more 1 trip • • • Suspected Area P0105/31 Vacuum sensor Wire harness and connector Engine control computer .2 mmHg 150 20 450 60 750 (840) kPa 100 (112) Intake Manifold Internal Pressure A051845J01 DTC No. At the same time.6 2.4 1.Malfunction Time 4. ignition switch is ON Engine is warmed up and idling (air conditioner is OFF) Engine is running at a constant speed of 2000 r/min (air conditioner is OFF) Standard 80 to 110 kPa 20 to 40 kPa 19 to 39 kPa OK NG CHECK FOR INTERMITTENT PROBLEMS . Read the air intake pressure shown on the DS-II while the ignition switch is turned to the ON position and the engine is stopped. This information is helpful when troubleshooting. K3-VE) ES–29 CIRCUIT DIAGRAM Engine Control Computer Vacuum Sensor 1 2 52 PIM 3 57 122 VCPM E2PM ES A133545J02 INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II. Freeze data records aspects of the engine's condition when malfunctions occur.ENGINE CONTROL .EFI SYSTEM (3SZ-VE. Result Vehicle Condition Engine is stopped. 1 READ DS-II DATA (AIR INTAKE PRESSURE) (a) (b) Connect the DS-II to the DLC. check whether there is continuity or a short between the engine control computer and the vacuum sensor.ES–30 ENGINE CONTROL .5 to 5. then measure the voltage between the terminals of the vacuum sensor connector. K3-VE) 2 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER VACUUM SENSOR) (a) (b) Disconnect the vacuum sensor connector and the engine control computer connector B. and no short between other terminals Engine Control Computer ES VCPM PIM E2PM Inspection Terminal (Terminal Name) Engine control computer ←→ Vacuum sensor 57 (VCPM) ←→ 3 (VC) 52 (PIM) ←→ 2 (PIM) Intake Pressure Sensor Vehicle Side Connector 122 (E2PM) ←→ 1 (E2) NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR E2 PIM VC A133546J01 OK 3 CHECK VACUUM SENSOR (a) (b) Turn the ignition switch to the ON position.1 V 3 (VC) ←→ 1 (E2) 2 (PIM) ←→ 1 (E2) Intake Pressure Sensor Inspection Terminal (Terminal Name) 1 2 3 (c) E2 PIM VC A133547J01 Remove the fuel pump relay and crank the engine.5 V 3. Measure the voltage between the terminals of the vacuum sensor connecter using the tester.) Standard Standard There is continuity and no shorts between other terminals and body ground There is continuity. Using a tester. Standard Standard Voltage value fluctuates 2 (PIM) ←→ 1 (E2) Inspection Terminal (Terminal Name) OK NG CHECK AND REPLACE ENGINE ECU REPLACE THE VACUUM SENSOR .EFI SYSTEM (3SZ-VE.1 to 4. Standard Standard 4.16.(For terminal layout. see page ES . ENGINE CONTROL . the resistance of the thermistor drops. IG ON 2. the resistance of the thermistor increases.Malfunction Condition 3. the resistance changes depending on the intake air temperature and the potential of terminal THA changes. K3-VE) ES–31 DTC DESCRIPTION P0110/43 INTAKE AIR TEMPERATURE SENSOR SIGNAL SYSTEM The intake air temperature sensor detects the intake air temperature.5 0. 1 trip • • • Suspected Area P0110/24 Wire harness or connector INTAKE AIR TEMPERATURE SENSOR Engine control computer . and.3 0.1 -20 0 20 40 60 80 100 Temperature [°C] A032255J11 DTC No. Conversely. Open or short to intake air temperature sensor circuit 3. the engine control computer increases the fuel injection volume to improve drivability during cold engine operation.Other 1. ES Resistance [kΩ] 30 20 10 5 3 2 1 0. 0. through resistance R. The intake air temperature sensor is connected to the engine control computer. The resistance of the thermistor built into intake air temperature sensor changes depending on the temperature of the intake air.Malfunction Time 4. DTC Detection Condition 1. Because resistance R and the intake air temperature sensor are connected in series.Diagnosis Condition 2.5 seconds or more 4.EFI SYSTEM (3SZ-VE. 5V power source voltage is supplied to the intake air temperature sensor from terminal THA of the engine control computer. When the intake air temperature is low.2 0. Based on this signal. when the temperature of the intake air is high. This information is helpful when troubleshooting. Read the intake air temperature indicated on the DS-II while the ignition switch is turned to the ON position and the engine is stopped. Result Tester Display -40°C 140°C Equivalent to ambient temperature Proceed to A B C B C A GO TO STEP 4 CHECK FOR INTERMITTENT PROBLEMS 2 READ DS-II DATA (WIRE HARNESS OPEN CIRCUIT INSPECTION) SST 09843-18020 .Freeze data records aspects of the engine's condition when malfunctions occur.EFI SYSTEM (3SZ-VE. 1 READ DS-II DATA (INTAKE AIR TEMPERATURE) (a) (b) Connect the DS-II to the DLC. K3-VE) CIRCUIT DIAGRAM Engine Control Computer Inlet Air Temperature Sensor 1 55 THA ES 2 19 E2 G100102J24 INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II.ES–32 ENGINE CONTROL . EFI SYSTEM (3SZ-VE. Standard: 140°C OK REPLACE SENSOR INTAKE AIR TEMPERATURE ES NG 3 READ DS-II DATA (CHECK FOR OPEN IN ENGINE CONTROL COMPUTER) SST 09843-18020 (a) Short the circuit between terminals 55 (THA) and 19 (E2) of the engine control computer using the SST (diagnosis check wire). (b) Read the intake air temperature displayed on the DS-II. Standard: 140°C Engine Control Computer NG E2 CHECK AND REPLACE ENGINE CONTROL COMPUTER THA A133549J01 OK REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 4 READ DS-II DATA (INSPECT WIRE HARNESS SHORT CIRCUIT) (a) (b) (c) Disconnect the intake air temperature sensor connector. Read the inlet air temperature displayed on the DS-II. Turn the ignition switch to the ON position. Connect the DS-II to the DLC. Short the circuit between terminals 2 (-) and 1 (+) of the inlet air temperature sensor vehicle side connector using the SST (diagnosis check wire). Read the intake air temperature displayed on the DS-II. K3-VE) ES–33 Inlet Air Temperature Sensor Vehicle Side Connector (a) (b) (c) (d) (e) (+) (-) A133551J01 Disconnect the intake air temperature sensor connector. Turn the ignition switch to the ON position. Standard: -40°C OK REPLACE SENSOR INTAKE AIR TEMPERATURE NG .ENGINE CONTROL . 16. Using a tester. and no short between other terminals ES E2 THA Tester Connection (Terminal Symbol) Engine control computer ←→ Inlet air temperature sensor 55(THA) ←→ 1(+) Inlet Air Temperature Sensor Vehicle Side Connector 19(E2) ←→ 2(-) NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR (+) (-) A133550J01 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER . K3-VE) 5 CHECK WIRE HARNESS TEMPERATURE SENSOR) AND CONNECTOR (ENGINE CONTROL COMPUTER INTAKE (a) Engine Control Computer (b) Disconnect the engine control computer connector B and the intake air temperature sensor connector.(For terminal layout.ES–34 ENGINE CONTROL .) Standard Standard There is continuity and no shorts between other terminals and body ground There is continuity.EFI SYSTEM (3SZ-VE. check whether there is continuity or a short between the engine control computer vehicle side connector and the intake air temperature sensor vehicle side connector. see page ES . 1 READ DS-II DATA (COOLANT TEMPERATURE) (a) (b) Connect the DS-II to the DLC.5 seconds or more 1 trip • • • DTC No. 2.Freeze frame data records aspects of the engine's condition when malfunctions occur. K3-VE) ES–35 DTC DESCRIPTION P0115/42 COOLANT TEMPERATURE SENSOR SIGNAL SYSTEM The resistance of the thermistor built into the coolant temperature sensor varies according to the coolant temperature. 4. 3. Malfunction Time 4.ENGINE CONTROL . IG ON Open or short in coolant temperature circuit 0. DTC Detection Condition 1. Result Tester Display -40 °C 140 °C Equivalent to actual coolant temperature Proceed to A B C B GO TO STEP 4 . Malfunction Condition 3. Read the engine coolant temperature displayed on the DS-II while the ignition switch is turned to the ON position and the engine is stopped. Suspected Area P0115/22 Wire harness or connector Coolant temperature Engine control computer ES CIRCUIT DIAGRAM Engine Control Computer Coolant Temperature 2 54 THW 1 19 E2 G100102J25 INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II.EFI SYSTEM (3SZ-VE. Other 1. This information is helpful when troubleshooting. Diagnosis Condition 2. 2). Read the engine coolant temperature displayed on the DS-II.) (b) Read the engine coolant temperature displayed on the DS-II.16. Standard: 140°C (a) Engine Control Computer NG E2 THW A133549J02 CHECK AND REPLACE ENGINE CONTROL COMPUTER OK REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 4 READ DS-II DATA (INSPECT WIRE HARNESS SHORT CIRCUIT) (a) (b) (c) Disconnect the connector of the coolant temperature sensor.(For terminal layout.EFI SYSTEM (3SZ-VE.2). K3-VE) C A CHECK FOR INTERMITTENT PROBLEMS 2 READ DS-II DATA (INSPECT WIRE HARNESS OPEN CIRCUIT) SST 09843-18020 Disconnect the connector of the coolant temperature sensor. Standard: -40°C OK REPLACE SENSOR COOLANT TEMPERATURE . Connect the DS-II to the DLC. see page ES . Standard: 140°C Coolant Temperature Vehicle Side Connector (a) (b) ES (-) (c) (d) (e) (+) A075082J04 OK REPLACE SENSOR COOLANT TEMPERATURE NG 3 READ DS-II DATA (CHECK FOR OPEN IN ENGINE CONTROL COMPUTER) SST 09843-18020 Short the circuit between terminals 54 (THW) and 19 (E2) of the engine control computer using the SST (diagnosis check wire No. Short the circuit between terminals 2 (+) and 1 (-) of the water temperature vehicle side connector using the SST (diagnosis check wire No. Turn the ignition switch to the ON position. Turn the ignition switch to the ON position.ES–36 ENGINE CONTROL . Read the engine coolant temperature displayed on the DS-II. see page ES . and no short between other terminals Engine Control Computer ES E2 THW Tester Connection (Terminal Symbol) Engine control computer ←→ Coolant temperature 54(THW) ←→ 2(+) E. check whether there is continuity or a short between the vehicle side connector or the engine control computer and the vehicle side connector of the coolant temperature sensor.16. Using a tester. Coolant Temperature Vehicle Side Connector 19(E2) ←→ 1(-) NG (-) (+) REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133552J01 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER .I.EFI SYSTEM (3SZ-VE. K3-VE) ES–37 NG 5 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER COOLANT TEMPERATURE) (a) (b) Disconnect connector B of the engine control computer and the connector of the coolant temperature sensor.F.(For terminal layout.) Standard Standard There is continuity and no short between other terminals and body ground There is continuity.ENGINE CONTROL . voltage of approximately 0.7 V is applied to the VTH terminal of the engine control computer. Open or short circuit in throttle position sensor circuit 3. 1 trip • • • Trouble Area P0120/41 Throttle position sensor Wire harness or connector Engine control computer . and the voltage increases from approximately 3. DTC Detection Condition 1.Malfunction Time 4.The voltage that is applied to the VTH terminal of the engine control computer increases in proportion to the opening angle of the throttle valve. IG ON 2. ES Throttle Position Sensor Engine Control Computer VC VTH 5V E2 A133572 DTC No. performs fuel-cut control.Other 1. K3-VE) DTC DESCRIPTION P0120/41 THROTTLE SENSOR SIGNAL SYSTEM The throttle position sensor is mounted on the throttle body to detect the opening angle of the throttle valve.ES–38 ENGINE CONTROL .The engine control computer determines the operating condition of the vehicle by the voltage input from the VTH terminal. etc. and adjusts the air-fuel ratio.5 V to 5.EFI SYSTEM (3SZ-VE. 0. When the throttle valve is fully closed.0 V when the throttle valve is fully opened.Diagnosis Condition 2.Malfunction Condition 3.5 seconds or more 4. 1 READ DS-II DATA (ABSOLUTE THROTTLE OPENING ANGLE) (a) (b) Connect the DS-II to the DLC. Result Throttle Valve Fully open Fully Closed Standard 64-96% 10-24% OK FI07052 CHECK FOR INTERMITTENT PROBLEMS NG . This information is helpful when troubleshooting.EFI SYSTEM (3SZ-VE. Freeze frame data records aspects of the engine's condition when malfunctions occur.ENGINE CONTROL . Read the opening angle of the throttle valve. K3-VE) ES–39 CIRCUIT DIAGRAM Throttle Position Sensor Engine Control Computer 1 B16 56 VC ES 3 B13 53 VTH 2 B6 19 E2 A133553J01 INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II. Standard: 4.(For terminal layout. Standard Tester Connection (Terminal Symbol) Throttle Valve Fully closed Fully open Resistance 2. Using a tester. measure the voltage between terminal 1(VC) and 2 (E2) of the vehicle side connector of the throttle position sensor. Using a tester.7 k 2.0 (V) 2.3 to 1. Turn the ignition switch to the ON position. measure the resistance between the connector terminals of the throttle position sensor. measure the voltage between terminal 53 (VTH) and 19 (E2) of the engine control computer connector.2 k Throttle Position Sensor 3 2 1 VC 1 (VC) to 3 (VTH) 3 (VTH) to 2 (E2) 3 (VTH) to 2 (E2) VTH E2 A133573J01 NG REPLACE THROTTLE POSITION SENSOR OK 4 INSPECT ENGINE CONTROL COMPUTER SST 09842-97209 (a) Connect the SST (sub harness.2 to 5.5 to 5.EFI SYSTEM (3SZ-VE.) Standard Throttle Valve Fully closed Fully open E2 VTH A133549J03 Engine Control Computer Standard 0.5 to 5.7 to 5. (b) Turn the ignition switch to the ON position.0 to 10. K3-VE) 2 CHECK WIRE HARNESS OR CONNECTOR (CHECK VOLTAGE) (a) (b) (c) Disconnect the connector of the throttle position sensor.2 (V) OK CHECK AND REPLACE ENGINE CONTROL COMPUTER .16. (c) Using a tester. EFI computer check) to the engine control computer. see page ES .5 V Throttle Position Sensor Vehicle Side Connector ES VC E2 A133554J01 NG GO TO STEP 6 OK 3 INSPECT THROTTLE POSITION SENSOR (a) (b) Disconnect the connector of the throttle position sensor.9 k 0.ES–40 ENGINE CONTROL . see page ES .16.) Standard: 4. measure the voltage between terminals 56 (VC) and 19 (E2) of the engine control computer connector.EFI SYSTEM (3SZ-VE. Using a tester.) Standard Standard There is continuity and no short between other terminals and body ground Engine Control Computer ES Inspection Terminal (Terminal Name) Engine control computer ←→ Throttle position sensor 53 (VTH) ←→ 3 (VTH) VTH Throttle Position Sensor Vehicle Side Connector NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR VTH A133574J01 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER 6 INSPECT ENGINE CONTROL COMPUTER SST 09842-97209 Connect the SST (sub harness.5 to 5. (b) Turn the ignition switch to the ON position.16. see page ES . K3-VE) ES–41 NG 5 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER THROTTLE POSITION SENSOR) (a) (b) Disconnect the engine control computer connector B and the throttle position sensor connector. EFI computer check) to the engine control computer. (c) Using a tester. (For terminal layout.(For terminal layout.5 V (a) Engine Control Computer NG E2 VC A133549J04 CHECK AND REPLACE ENGINE CONTROL COMPUTER .ENGINE CONTROL . check whether there is continuity or a short between the engine control computer vehicle side connector and the throttle position sensor vehicle side connector. EFI SYSTEM (3SZ-VE.ES–42 OK ENGINE CONTROL . see page ES . check whether there is continuity or a short between the engine control computer vehicle side connector and the throttle position sensor vehicle side connector. Using a tester. and no short between other terminals Engine Control Computer ES Inspection Terminal (Terminal Name) Engine control computer ←→ Throttle position sensor 56 (VC) ←→ 1 (VC) E2 VC Throttle Position Sensor Vehicle Side Connector 19 (E2) ←→ 2 (E2) OK CHECK AND REPLACE ENGINE CONTROL COMPUTER VC E2 A133574J03 NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR .16.(For terminal layout. K3-VE) 7 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER THROTTLE POSITION SENSOR) (a) (b) Disconnect the engine control computer connector B and the throttle position sensor connector.) Standard Standard There is continuity and no short between other terminals and body ground There is continuity. Malfunction Condition 3. When the air-fuel ratio is lean.45 V) The engine control computer determines whether the air-fuel ratio is rich or lean by the electromotive force signal of the oxygen sensor. 400 seconds or more after engine started 4. K3-VE) ES–43 DTC DESCRIPTION P0130/21 FRONT 02 SENSOR SIGNAL SYSTEM A three-way catalytic converter is used to efficiently remove CO. The oxygen sensor has a heater which warms a zirconium element. NOTICE: If this test is not performed accurately. and controls injection volume. The oxygen sensor has a characteristic where its voltage output changes suddenly near the stoichiometric air-fuel ratio.Other 1. The engine control computer recognizes the lean air-fuel ratio detected by the oxygen sensor.Diagnosis Condition 2. (High voltage variation: > 0. The engine control computer uses this signal characteristic to allow air-fuel ratio control. An oxygen sensor is provided in order help the system maintain the stoichiometric ratio. The oxygen sensor is used to detect the oxygen concentration of the exhaust gas. it will be impossible to determine exactly where problems are occurring. CO.EFI SYSTEM (3SZ-VE.[*1] Allow the engine to idle for approximately 400 seconds. The heater is controlled by the engine control computer. The three-way catalytic converter works most efficiently when the air-fuel ratio is close to the stoichiometric ratio.45 V) When the air-fuel ratio is rich.500 r/min 2. ES Atmosphere Output Voltage Air-Fuel Ratio Housing Platinum Electrode Zirconia Element Platinum Electrode Heater Cover Exhaust Gas DTC Detection Condition 1. the oxygen level in the exhaust gas increases. 3. Steady oxygen sensor output voltage of less than 0. (Low voltage variation: < 0.Malfunction Time 4. 2.ENGINE CONTROL . the O2 sensor voltage system circuit may be open. .3 V or more than 0. Start the engine and drive the vehicle for more than 20 seconds at speed above 10 km/h.Therefore. HC and NOx from the exhaust gas.02 V or less. check the FrO2 sensor output voltage on the data monitor screen. HC and NOx cannot be converted efficiently. If the FrO2 sensor output voltage stays at 0. if the engine does not operate close to the stoichiometric air-fuel ratio. DESCRIPTION 1. oxygen levels in the exhaust gas decrease. Engine warmed up and engine speed lower than 2. if normal combustion is occurring. Suspected Area P0130/21 Wire harness or connector Oxygen sensor Engine control computer HINT: Using the DS-II. and the engine control computer recognizes the rich air-fuel ratio detected by the oxygen sensor. which applies current to the heater in order to prevent sensor inaccuracy that may occur if the sensor gets cold when the exhaust gas temperature is low (such as when there is a low amount of intake air).[*2] Check the voltage of the FrO2 sensor output. 2 trip • • • Ceramic Coating Lean Rich Stoichiometric Air-Fuel Ratio A069512 DTC No.6 V 3. Vehicle Speed More Than 20 Sec.ES–44 ENGINE CONTROL . the check warning light will remain on while the procedure is performed. [*2] A140624J01 CIRCUIT DIAGRAM EFI Relay EFI Engine Control Computer C8 MRO Front O2 Sensor 2 MAIN 4 3 B30 OX1 1 B2 OXH1 Rear O2 Sensor 2 1 B1 OXH2 Battery 4 3 B5 OX2 B6 E2 A135516 .EFI SYSTEM (3SZ-VE. K3-VE) HINT: If there are any abnormalities. [*2].[*1] 10 km/h ES IG OFF Idling More Than 400 Sec. K3-VE) ES–45 INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II. 1 READ DS-II DATA (FrO2 SENSOR OUTPUT VOLTAGE) (a) (b) Connect the DS-II to the DLC. Start the engine and warm it up until it reaches a temperature that allows the oxygen sensor to start feedback. and no short between other terminals Engine Control Computer (b) Tester Connection (Terminal Symbol) Engine control computer ←→ Oxygen sensor E2 OX1 123 (OX1) ←→ 3 (OX1) Oxygen Sensor Vehicle Side Connector 19 (E2) ←→ 4 (E2) NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OX1 E2 A133576J04 OK REPLACE OXYGEN SENSOR . check whether there is continuity or a short between the engine control computer and the oxygen sensor (For terminal layout. This information is helpful when troubleshooting.ENGINE CONTROL . ES OK NG GO TO STEP 3 2 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER OXYGEN SENSOR) (a) Disconnect the engine control computer connector B and the oxygen sensor connector. Result: Repeated output of voltage that is less than 0. (d) Using the DS-II. HINT: • It is easier to see the changes in the line graph mode on the monitor screen.3 V or more than 0. read FrO2 sensor voltage B1S1 while the engine is idling.Freeze frame data records aspects of the engine's condition when malfunctions occur.EFI SYSTEM (3SZ-VE. Standard Standard There is continuity and no short between other terminals and body ground There is continuity. see page ES .16).6 V. Using a tester. (c) Warm up the oxygen sensor for approximately 90 seconds at an engine speed of 2500 r/min. Turn the ignition switch to the ON position. K3-VE) 3 ROAD TEST TO CHECK OPERATION (a) (b) (c) Connect the DS-II to the DLC.EFI SYSTEM (3SZ-VE. Turn the ignition switch to the ON position. and delete the DTCs by following the prompts on the DS-II screen. To check the system. Result Tester Display Indicates P0130/21 Indicates a normal code Proceed to A B B A CHECK FOR INTERMITTENT PROBLEMS CHECK AND REPLACE ENGINE CONTROL COMPUTER . (1) Check if DTC P0130/21 is indicated.ES–46 ENGINE CONTROL . warm up the oxygen sensor by performing a road test. HINT: Refer to DESCRIPTION for the procedure. ES NEXT 4 READ DTCS (a) (b) Connect the DS-II to the DLC. and read the DTCs by following the prompts on the DS-II screen. check for the short between terminals 1 (HT1A) and 4 (E2). K3-VE) ES–47 DTC DTC DESCRIPTION See ES .Diagnosis Condition 2. 4. 1.Other 1.2 Tester Connection (Terminal Symbol) 1 (HT1A) ←→ 4 (E2) 1 (HT2A) ←→ 4 (E2) Standard No continuity No continuity NG REPLACE OXYGEN SENSOR .2 seconds or more 2 trip • • • • • • Suspected Area ES Wire harness or connector Oxygen sensor Engine control computer Wire harness or connector OXYGEN SENSOR NO. 2.Malfunction Condition 3. This information is helpful when troubleshooting.ENGINE CONTROL .2 heater circuit 1. 3. 4. 2.43.2 Engine control computer P0135/23 P0141/24 CIRCUIT DIAGRAM HINT: For the wiring diagram. 3. INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II.Malfunction Time 4. Standard Sensor Oxygen sensor Oxygen sensor No.2 seconds or more 2 trip IG ON Open in oxygen sensor No. see page ES . P0135/23 FRONT 02 SENSOR HEATER SIGNAL SYSTEM P0141/24 REAR 02 SENSOR HEATER DTC No. DTC Detection Condition 1.2 Check short in sensor heater (1) Using the tester. 1 INSPECT OXYGEN SENSOR (a) (b) Disconnect the oxygen sensor connector. Standard Sensor Tester Connection (Terminal Symbol) 2 (+B) ←→ 1 (HT1A) 2 (+B) ←→ 1 (HT2A) Standard (Measurement Condition) 5 to 10 (20°C) 5 to 10 (20°C) +B Front Rear O2 Sensor HT1A HT2A 2 4 E2 1 3 (c) A133577J02 Oxygen sensor Oxygen sensor No.EFI SYSTEM (3SZ-VE.Freeze frame data records aspects of the engine's condition when malfunctions occur.44. measure the resistance between the terminals. IG ON Open in oxygen sensor heater circuit 1. CHECK SENSOR HEATER RESISTANCE (1) Using a tester. 16. Turn the ignition switch to the ON position. see page ES . check whether there is continuity or a short between the engine control computer and the oxygen sensor. K3-VE) 2 CHECK WIRE HARNESS AND CONNECTOR (SENSOR HEATER POWER SOURCE CIRCUIT) (a) (b) (c) Disconnect the oxygen sensor connector. (For terminal layout.ES–48 OK ENGINE CONTROL . Standard Installed position Front. . Using a tester. Using a tester.EFI SYSTEM (3SZ-VE. measure the voltage of the terminals of the oxygen sensor vehicle side connecter. rear A133578J01 Oxygen Sensor Vehicle Side Connector +B ES Tester Connection (Terminal Symbol) 2 (+B) ←→ body ground Standard 10 to 14 V NG GO TO STEP 4 OK 3 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER OXYGEN SENSOR) (a) Disconnect the engine control computer connector B and the oxygen sensor connector.) Standard Standard There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground Engine Control Computer (b) Tester Connection (Terminal Symbol) Engine control computer ←→ Oxygen sensor OXH1 OXH2 15 (OXH1) ←→ 1 (HT1A) 02 Sensor Vehicle Side Connector 14 (OXH2) ←→ 1 (HT2A) HT1A HT2A NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133576J03 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER 4 CHECK WIRE HARNESS AND CONNECTOR (OXYGEN SENSOR EFI RELAY) (a) Disconnect the oxygen sensor connector. Using a tester. check whether there is continuity or a short between the relay block holder for the EFI relay and the oxygen sensor.EFI SYSTEM (3SZ-VE.ENGINE CONTROL . K3-VE) ES–49 Oxygen Sensor Vehicle Side Connector +B (b) (c) Remove the EFI relay. Standard Tester Connection (Terminal Symbol) Relay block holder for EFI relay ←→ Oxygen sensor Installed position Standard Front. rear 4 ←→ 3 (+B) There is continuity and no short between other terminals and body ground ES NG 2 5 3 1 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133579J01 OK CHECK ECU POWER SOURCE SYSTEM (SEE ECU POWER SOURCE SYSTEM) . [*3] Drive the vehicle for 50 seconds or more at a vehicle speed of 70 km/h or more. Open in oxygen sensor circuit or no rich signals are input during feedback 3. check the RrO2 sensor output voltage on the data monitor screen. [*1] 10 km/h IG OFF Idling More Than 400 Sec.[*1] Allow the engine to idle for approximately 400 seconds. Vehicle Speed More Than 50 Sec. 500 seconds or more 4. 5. • If there are any abnormalities.1 V or less.Diagnosis Condition 2.Malfunction Time 4. DESCRIPTION 1.ES–50 ENGINE CONTROL . [*4] Check the voltage of the RrO2 sensor output. Start the engine and drive the vehicle for more than 20 seconds at speed above 10 km/h. [*2] Driving With The Engine Warm [*3] A140625J01 CIRCUIT DIAGRAM (See Page ES . [*4] 70 km/h More Than 20 Sec.Other 1. [*4]. HINT: • Because oxygen sensor No. the check engine warning light will remain on while the procedure is performed.2 output voltage and the air-fuel ratio feedback (F/B calibration value) can be read by using DS-II. drive with a moderate level of load after the engine is completely warmed up. 2 trip • • • Suspected Area ES P0136/27 Wire harness or connector Oxygen sensor No. • The conditions of the oxygen sensor No.EFI SYSTEM (3SZ-VE.2 does not have heater control.Malfunction Condition 3. During feedback after engine is warmed up 2. there be an open in the RrO2 sensor voltage circuit.2 Engine control computer HINT: • Using the DS-II. NOTICE: If this test is not performed accurately. K3-VE) DTC DESCRIPTION (See Page ES . If the RrO2 sensor output voltage stays at 0. 2. it will be impossible to determine exactly where problems are occurring.44) . 3. DTC Detection Condition 1.43) P0136/22 REAR 02 SENSOR SIGNAL SYSTEM DTC No.[*2] Warm up the engine. 4. ) Perform a road test. check the other codes first. 1 READ DTCs (a) (b) (c) (d) Connect the DS-II to the DLC.8.8. B C A GO TO RELEVANT DTC CHART CHECK FOR INTERMITTENT PROBLEMS .Freeze frame data records aspects of the engine's condition when malfunctions occur.) (1) Check if DTC P0136/27 is indicated.EFI SYSTEM (3SZ-VE.(See page ES . Check for DTCs following the prompts on the DS-II screen. (See page ES . K3-VE) ES–51 INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II. This information is helpful whnen troubleshooting.ENGINE CONTROL . and delete the DTCs by following the prompts on the DS-II screen. Turn the ignition switch to the ON position. ES Result Tester Display Indicates P0136/27 Indicates P036/27 and other codes Indicates a normal code Proceed to A B C HINT: If DTC P0136/27 and other DTCs are output at the same time. 2 18 (O2X2) ←→ 1 (+) Rear O2 Sensor Vehicle Side Connector 19(E2) ←→ 2(-) NG 1 2 (+) (-) A133580J01 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK 3 READ DS-II DATA (RrO2 SENSOR OUTPUT VOLTAGE) (a) (b) Connect the DS-II to the DLC.2) (a) Disconnect the engine control computer connector B and the oxygen sensor No. • If changes are difficult to see. see page ES . K3-VE) 2 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER OXYGEN SENSOR NO. Read the voltage of the RrO2 sensor output while racing the engine at a speed of 4000 r/min several times. select ECU DATA MONITOR.ES–52 ENGINE CONTROL . perform a road test.5 V or more HINT: • Oxygen sensor No. Warm up oxygen sensor No.2. and no short between other terminals Engine Control Computer (b) ES E2 OX2 Tester Connection (Terminal Symbol) Engine Control Computer ←→ Oxygen Sensor No. Following the prompts on the DS-II screen. check whether there is continuity or a short between the engine control computer and oxygen sensor No. (For terminal layout.EFI SYSTEM (3SZ-VE.16. Then select MODE CHANGE and LINE GRAPH.2 for approximately 90 seconds at an engine speed of 2500 r/min.4 V or less and 0.2 does not have a heater control. Result: Voltage output is 0.2 . Using a tester.) Standard Standard There is continuity and no short between other terminals and body ground There is continuity.(See DESCRIPTION.2 connector.) (c) (d) NG OK REPLACE ENGINE CONTROL COMPUTER REPLACE OXYGEN SENSOR NO. so perform the tests after the engine is completely warm. then RrO2 SENSOR OUTPUT VOLTAGE. Air-fuel ratio F/B is the air-fuel ratio correction that is used to maintain a stoichiometric ratio.If either the air-fuel ratio F/B value or the air-fuel ratio F/B learned value exceeds a certain value and becomes lean or rich.1. Suspected Area P0171/25 Intake system Fuel system Ignition system Wire harness or connector Oxygen sensor Engine control computer Gas leakage from exhaust system Intake system Fuel system Ignition system Wire harness or connector Oxygen sensor Engine control computer Gas leakage from exhaust system P0172/26 HINT: If the total of the air-fuel F/B value and the air-fuel F/B learned value is within 25%. 60 seconds or more 4.Diagnosis Condition 2. • Read the freeze frame data using the DS-II. Because of differences specific to each engine (such as differences caused by wear over time and changes in the operating environment) this air-fuel ratio F/B learned value varies from a central value. DTC Detection Condition 1. Fuel trim is corrected heavily on the decrease side (approx. 60 seconds or more 4. during a normal air-fuel ratio F/B 2.+ 40 %) 3. While operating the vehicle at 70 km/h with the engine warm. 2 trip 1. The other is the memory air-fuel ratio correction (air-fuel ratio F/B learned). The oxygen sensors send signals to the engine control computer indicating whether the current air-fuel ratio is rich or lean comparing to the stoichiometric ratio. NG REPAIR OR REPLACE EMISSION CONTROL SYSTEM .ENGINE CONTROL .Freeze frame data records aspects of the engine's condition when malfunctions occur. Fuel trim is corrected heavily on the increase side (approx. When the signal indicates that the condition is lean the injection volume is increased.EFI SYSTEM (3SZ-VE.Malfunction Condition 3. 1 INSPECT EMISSION CONTROL SYSTEM HINT: For inspection procedures. Air-fuel ratio F/B learned value refers to a value that shows the air-fuel ratio F/B value over a long period of time. CIRCUIT DIAGRAM See Page ES .44. K3-VE) ES–53 DTC DTC DESCRIPTION P0171/25 FUEL SYSTEM (LEAN MALFUNCTION) P0172/26 FUEL SYSTEM (RICH MALFUNCTION) There are two types of air-fuel ratio corrections. see page EC .If so.Other 1. When the signal indicates that the condition is rich the injection volume is decreased. during a normal air-fuel ratio F/B 2. the system is normal.Malfunction Time 4. This information is helpful when troubleshooting. 2 trip • • • • • • • • • • • • • • ES DTC No. the engine control computer illuminates the check warning light. One is the normal operating air-fuel ratio correction (air-fuel ratio F/B). While operating the vehicle at 70 km/h with the engine warm. the DTC P0171/25 may be recorded.+ -35%) 3. INSPECTION PROCEDURE HINT: • Check if the engine has stopped in the past because of a fuel cut. Resistance: 12 (20°C) HINT: If the value is not within the standard range.ES–54 OK ENGINE CONTROL .EFI SYSTEM (3SZ-VE. NOTICE: Be extremely careful when handling the fuel tube connector. check that there is no leakage from the injector. (1) Using the tester. (4) Connect the injector to the SST (EFI inspection wire). (5) Connect the SST (EFI inspection wire) to the battery. HINT: To prevent fuel from spraying. measure the resistance between the injector terminals. etc. Check for leakage. (1) When removing the SST from the battery under the conditions described above. O9268-41047 Check the resistance. (b) Fuel injection volume NOTICE: Work in a location with good air ventilation and watch out for fire. perform fuel injection (15 seconds each) 2 or 3 times. replace with a known-good part. (3) Connect the DS-II to the DLC and operate the fuel pump. SST: 09842-30055 Standard (a) Injection Volume A139327 ES A Injector B Fuel Pipe Difference Between Individual Injectors 13 ml or less 60 to 73ml (c) HINT: If the value is not within the standard range. Standard: 1 drop or less per 12 minutes NG B000069 REPLACE FUEL INJECTOR ASSEMBLY . replace with known-good parts. K3-VE) 2 INSPECT FUEL INJECTOR ASSEMBLY SST 09843-97201. and calculate the average value. install the correct-sized vinyl tube. (2) Attach the injector to a graduated cylinder. (1) Connect the SST (injection measuring tool set) to the fuel pipe (vehicle side). 326 kΩ ES NOTICE: Protect the terminal area from getting wet when checking the sensor by applying water.32 to 2. NG OK REPAIR OR REPLACE IGNITION SYSTEM 5 CHECK FUEL SYSTEM HINT: For inspection procedures.3. see page FU .59 kΩ 0. K3-VE) ES–55 OK 3 CHECK COOLANT TEMPERATURE (a) Check the resistance. wipe the sensor dry after the check. inspect the resistance between the terminals. 80°C Standard 2.1. see page IG . (1) Using the tester.EFI SYSTEM (3SZ-VE. Standard Measurement Condition When approx.310 to 0. 20°C When approx. Resistance [kΩ] NG REPLACE SENSOR COOLANT TEMPERATURE Temperature [°C] A050330 OK 4 INSPECT THE IGNITION SYSTEM HINT: For inspection procedures.Also.ENGINE CONTROL . NG OK REPAIR OR REPLACE FUEL SYSTEM 6 CHECK FOR EXHAUST GAS LEAKS NG REPAIR OR REPLACE LEAKAGE AREA EXHAUST GAS . Turn the ignition switch to the ON position.(For terminal layout. HINT: Refer to the oxygen sensor output voltage inspection procedure. see page ES .ES–56 OK ENGINE CONTROL . . Using the DS-II. and delete the DTCs by following the prompts on the DS-II screen. warm up the oxygen sensor by performing a road test. K3-VE) 7 READ DS-II DATA (FrO2 SENSOR OUTPUT VOLTAGE) (a) (b) Warm up the oxygen sensor for approx.6 V ES NG OK GO TO STEP 9 8 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER OXYGEN SENSOR) (a) (b) (c) Disconnect connector B of the engine control computer. Disconnect the connector of the oxygen sensor. check whether there is continuity or a short between the engine control computer and the oxygen sensor connector. 90 seconds at an engine speed of 2500 r/min.3 V or more than 0.) Standard Standard There is continuity and no short between other terminals and body ground Engine Control Computer Tester Connection (Terminal Symbol) Engine Control Computer ←→ Oxygen Sensor 123 (OX1) ←→ 3 (OX1) OX1 Front O2 Sensor Vehicle Side Connector OK NG REPLACE OXYGEN SENSOR REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OX1 A133576J02 9 ROAD TEST TO CHECK OPERATION (a) (b) (c) Connect the DS-II to the DLC. read the output voltage of the oxygen sensor while the engine is idling.16. Using a tester. To check the system.EFI SYSTEM (3SZ-VE. Standard: Repeated output of voltage that is less than 0. ENGINE CONTROL . K3-VE) ES–57 GO 10 READ DTCs (a) (b) Connect the DS-II to the DLC.EFI SYSTEM (3SZ-VE. Result B P0171/25 is output again A P0171/25 is not output again ES B CHECK AND REPLACE ENGINE CONTROL COMPUTER A CHECK FOR INTERMITTENT PROBLEMS . Turn the ignition switch to the ON position. and read the DTC by following the prompts on the DS-II screen. (1) Check if DTC P0171/25 is detected. Rate of misfires is higher than the set value 3.Other 1. If the number of misfires reaches or exceeds the point at which the catalyst may overheat.Malfunction Condition 3. 2 trip • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • DTC No. When driving at vehicle speed of 30 to 70 km/h 2. 60 seconds or more 4. If the number of misfires reaches or exceeds a specified value. Rate of misfires is higher than the set value 3. 60 seconds or more 4. DTC Detection Condition 1. When driving at vehicle speed of 30 to 70 km/h 2. 2 trip 1. the engine check warning light flashes. DTCs P0301/17 through P0304/17 are output repeatedly 3. 60 seconds or more 4. 60 seconds or more 4.ES–58 ENGINE CONTROL .If the voltage is lower than the specified value. This ionic current is represented by ionic voltage and input to the engine control computer. 2 trip 1. the engine check warning light illuminates to indicate a problem. When driving at vehicle speed of 30 to 70 km/h 2. Suspected Area P0300/17 Ignition system Intake system Fuel system Wire harness or connector Coolant temperature Engine control computer Fuel injector Ignition system Intake system Fuel system Wire harness or connector Coolant temperature Engine control computer Fuel injector Ignition system Intake system Fuel system Wire harness or connector Coolant temperature Engine control computer Fuel injector Ignition system Intake system Fuel system Wire harness or connector Coolant temperature Engine control computer Fuel injector Ignition system Intake system Fuel system Wire harness or connector Coolant temperature Engine control computer Fuel injector P0301/17 P0302/17 P0303/17 P0304/17 . K3-VE) DTC DTC DTC DTC P0300/17 MISFIRE P0301/17 MISFIRE (#1 CYLINDER) P0302/17 MISFIRE (#2 CYLINDER) P0303/17 MISFIRE (#3 CYLINDER) P0304/17 MISFIRE (#4 CYLINDER) ES DTC DESCRIPTION The igniter detects ionic current that is generated by combustion.Diagnosis Condition 2. 2 trip 1.EFI SYSTEM (3SZ-VE. When driving at vehicle speed of 30 to 70 km/h 2. 60 seconds or more 4. Rate of misfires is higher than the set value 3. Rate of misfires is higher than the set value 3.Malfunction Time 4. 2 trip 1. When driving at vehicle speed of 30 to 70 km/h 2. the engine control computer determines that there has been a misfire and counts the number of detected misfires. perform troubleshooting for those DTCs first.EFI SYSTEM (3SZ-VE. 2 1 ES Injector No.1) NG OK REPAIR OR REPLACE IGNITION SYSTEM .ENGINE CONTROL . 4 Cylinder) 1 4 3 2 IG4 ICMB4 To EFI Relay A135528 INSPECTION PROCEDURE HINT: • If any codes are detected other than misfire malfunction. 1 IG1 #10 ICMB1 A4 2 1 Ignition Coil Assembly ( No. Driving patterns Engine speed Idle 1000 r/min 2000 r/min 3000 r/min Time 3 and a half minutes or more 3 minutes or more 1 and a half minutes or more 1 minute or more 1 INSPECT THE IGNITION SYSTEM (See page IG . 1 Cylinder) To E/G Fuse 1 4 3 2 Engine Control Computer A11 B11 Injector No. This information is helpful when troubleshooting. 3 Cylinder) 1 4 3 2 A9 B9 IG3 ICMB3 #40 A8 B8 A1 2 Injector No. • Read the freeze frame data using the DS-II.Freeze frame data records aspects of the engine's condition when malfunctions occur. • To confirm that the repair has been completed. 2 Cylinder) 1 4 3 2 A10 B10 IG2 ICMB2 #20 A3 2 Injector No. 3 Ignition Coil Assembly ( No. K3-VE) ES–59 CIRCUIT DIAGRAM Ignition Coil Assembly ( No. operate the vehicle using one of the driving patterns shown below. 4 1 #30 A2 2 1 Ignition Coil Assembly ( No. 310 to 0. 80°C : 0. 20°C : 2. (1) Connect the SST (injection measuring tool set) to the fuel pipe (vehicle side).EFI SYSTEM (3SZ-VE. inspect the resistance between the terminals.326 kΩ NOTICE: Protect the terminal area from getting wet when checking the sensor by applying water. measure the resistance between the injector terminals. (1) Using the tester.ES–60 ENGINE CONTROL . (b) CHECK INJECTION VOLUME NOTICE: Work in a location with good air ventilation and watch out for fire.3) NG OK REPAIR OR REPLACE FUEL SYSTEM 3 CHECK COOLANT TEMPERATURE (a) Check the resistance.59 kΩ At approx. Also. wipe the sensor dry after the check. (a) . replace with known-good parts.32 to 2. ES NG Resistance [kΩ] REPLACE SENSOR COOLANT TEMPERATURE Temperature [°C] A050330 OK 4 INSPECT FUEL INJECTOR ASSEMBLY SST 09843-97201. (1) Using the tester. Standard: 12 Ω (20°C) HINT: If the value is not within the standard range. O9268-41047 Check the resistance. K3-VE) 2 CHECK FUEL PRESSURE (See page FU . Standard: At approx. perform fuel injection (15 seconds each) 2 or 3 times.5 V 3. Standard Standard Voltage value fluctuates 2 (PIM) ←→ 1 (E2) Tester Connection (Terminal Symbol) NG OK REPLACE THE VACUUM SENSOR . HINT: To prevent fuel from spraying. K3-VE) ES–61 (2) A (3) (4) (5) B Injector NOTICE: Be extremely careful when handling the fuel tube connector. Standard Standard 4. Connect the DS-II to the DLC and operate the fuel pump. (1) When removing the SST from the battery under the conditions described above. and calculate the average value.5 to 5. Standard: 1 drop or less per 12 minutes NG B000069 REPLACE FUEL INJECTOR ASSEMBLY OK 5 CHECK VACUUM SENSOR (a) (b) Turn the ignition switch to the ON position. Attach the injector to a graduated cylinder. install the correct-sized vinyl tube. Standard Injection Volume 60 to 73 ml Difference Between Individual Injectors 13ml or less ES Fuel Pipe A139327 (c) HINT: If the value is not within the standard range. Connect the injector to the SST (EFI inspection wire). etc. replace with known-good parts. check that there is no leakage from the injector. Measure the voltage between the terminals of the vacuum sensor connecter using the tester.1 to 4. Connect the SST (EFI inspection wire) to the battery.1V 3 (VC) ←→ 1 (E2) 2 (PIM) ←→ 1 (E2) Intake Pressure Sensor Tester Connection (Terminal Symbol) 1 2 3 (c) E2 PIM VC A133547J01 Remove the fuel pump relay and crank the engine.ENGINE CONTROL .EFI SYSTEM (3SZ-VE. Check for leakage. then measure the voltage between the terminals of the vacuum sensor connector. Using a tester. K3-VE) 6 CHECK WIRE HARNESS AND CONNECTOR (a) (b) Disconnect connector A of the engine control computer and disconnect the connectors of each fuel injector. Standard Installed position Terminal Connection (Terminal Symbol) Standard There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground ES #1 Cylinder 2←→24(#10) #2 Cylinder 2←→23(#20) #3 Cylinder 2←→22(#30) #4 Cylinder 2←→21(#40) NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK CHECK AND REPLACE ENGINE CONTROL COMPUTER .EFI SYSTEM (3SZ-VE.ES–62 ENGINE CONTROL . check whether there is continuity or a short between the engine control computer vehicle side connector and the fuel injector vehicle side connector. ENGINE CONTROL .9 seconds or more 1 trip • • • • DTC No. K3-VE) ES–63 DTC DESCRIPTION P0325/18 KNOCK SENSOR SIGNAL SYSTEM The knock control sensor is mounted to the cylinder block to detect engine knocking. 4.Freeze frame data records aspects of the engine's condition when malfunctions occur.EFI SYSTEM (3SZ-VE.Inside the knock control sensor. it generates electricity. When the sensing element is deformed due to the cylinder block vibration caused by knocking.Diagnosis Condition 2. 2.Malfunction Condition 3. there is a sensing element. 3. This information is helpful when troubleshooting. IG ON Open or short in knock control sensor circuit 0. When the engine computer senses this voltage.Malfunction Time 4. it retards the ignition timing to control the knocking.Other 1. DTC Detection Condition 1. Suspected Area P0325/52 Wire harness or connector Knock control sensor Installation tightness of knock control sensor Engine control computer ES CIRCUIT DIAGRAM Engine Control Computer Shield Line 121 KNK Knock Control Sensor 2 1 19 E2 A133581J01 INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II. . ) Engine Control Computer ES E2 KNK A133549J05 (b) Set the DS-II to the oscilloscope function.16. (a) Connect the DS-II to terminals 121(KNK) and 19 (E2) of the engine control computer connectors. OK CHECK AND REPLACE ENGINE CONTROL COMPUTER NG 2 INSPECT SENSOR INSTALLATION PART (a) Check the condition of the knock control sensor installation. . • The waveform amplitudes differ slightly depending on the vehicle. 1 ms/DIV Engine is warmed up and an engine speed of 4000 r/min is maintained Condition A134287 HINT: • The oscilloscope waveform shown as an example does not include noise or chattering waveforms.(See the DS-II instruction manual for the setting procedures.(For terminal layout. see page ES .ES–64 ENGINE CONTROL .) Item Tester Connection Tool setting Measurement condition KNK ←→ E2 1 V/DIV. NG REPAIR OR REPLACE INSTALLATION PART SENSOR OK 3 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER KNOCK CONTROL SENSOR) (a) Disconnect the engine control computer connector B and the knock control sensor connector. K3-VE) 1 INSPECT ENGINE CONTROL COMPUTER HINT: The communication between the engine control computer and the knock control sensors can be checked using the oscilloscope function of the DSII.EFI SYSTEM (3SZ-VE. 134. GO 5 READ DTCs (a) (b) Connect the DS-II to the DLC. and delete the DTC memory by following the prompts on the DS-II screen.ENGINE CONTROL . K3-VE) ES–65 (b) Engine Control Computer Using a tester. see page ES .EFI SYSTEM (3SZ-VE. Result B Does not indicate P0325/52 A Indicates P0325/52 B A SYSTEM NORMAL CHECK AND REPLACE ENGINE CONTROL COMPUTER .) Connect the DS-II to the DLC. ES . and read the DTCs by following the prompts on the DS-II screen. Turn the ignition switch to the ON position.) Standard Standard There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground Tester Connection (Terminal Symbol) Engine Control Computer ←→ Knock Control Sensor 121 (KNK) ←→ 2 (+) E2 KNK 19(E2) ←→ 1(-) Knock Control Sensor Vehicle Side Connector ES NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR (-) (+) A133582J01 OK 4 REPLACE KNOCK CONTROL SENSOR (a) (b) (c) (d) Replace the knock control sensor. check whether there is continuity or a short between the engine control computer and the knock control sensor(For terminal layout. Turn the ignition switch to the ON position.133.16. Perform a road test. (1) Check if DTC P0325/52 is detected.(See page ES . Malfunction Time 4. 3. The crank angle sensor is installed on the crankshaft. Freeze frame data records aspects of the engine's condition when malfunctions occur. Cranking N1 signal is not input 2 seconds or more 1 trip • • • • ES DTC No. 2. . It detects crankshaft angle and engine speed based on the N1 signal. Suspected Area P0335/13 Wire harness or connector Crank position sensor Crank angle sensor plate No.Other 1.ES–66 ENGINE CONTROL . this may indicate a mechanical system problem.Malfunction Condition 3. It has 30 teeth with 6 missing teeth to allow top dead center to be detected.1 and the pickup coil. DTC Detection Condition 1. 4.1 Engine control computer CIRCUIT DIAGRAM Engine Control Computer Crankshaft Position Sensor 1 59 N1+ 2 128 N1- A133583J02 INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II. This information is helpful when troubleshooting.EFI SYSTEM (3SZ-VE. The NE signal sensor outputs 30 signals per engine revolution. • If the problem is not detected after first troubleshooting DTC P0335/13. K3-VE) DTC DESCRIPTION P0335/13 ENGINE SYSTEM REVOLUTION SENSOR SIGNAL The crank position sensor system consists of the crank angle sensor plate No.The engine control computer detects the cylinder number and the relative position of the camshaft and angle based on the N2 signal.Diagnosis Condition 2. • DTCs may be recorded due to noise. cold and warm.ENGINE CONTROL .16. K3-VE) ES–67 1 CHECK ENGINE CONTROL COMPUTER HINT: The function of the engine control computer crank position sensor can be checked using the oscilloscope function of the DS-II. Warm is designated as a temperature between 50 to 100 °C. 20 ms/DIV While engine is idling Condition A134283 HINT: • As engine speed increases. measure the resistance between the connector terminals. OK CHECK AND REPLACE ENGINE CONTROL COMPUTER NG 2 CHECK CRANK POSITION SENSOR (a) Check the resistance. • As engine speed increases.EFI SYSTEM (3SZ-VE. Standard: 1630 to 2740 Ω (when cold) 2065 to 3225Ω (when warm) NOTICE: The terms. (a) Connect the DS-II to terminals 59 (N1+) and 128 (N1-) of the engine control computer connectors. (1) Using a tester.) Engine Control Computer ES N1+ N1A133549J06 (b) Set the DS-II to the oscilloscope function. see page ES . the amplitudes become larger.(For terminal layout.Cold is designated as a temperature between -10 and 50°C. the cycles become shorter. Crankshaft Position Sensor 2 (-) 1 (+) A133584J01 NG OK REPLACE CRANK POSITION SENSOR . refer to the temperature of the parts inspected. Item Tester connection Tool setting Measurement condition N1+ ←→ N12 V/DIV. 1 CRANK ANGLE OK CHECK AND REPLACE ENGINE CONTROL COMPUTER . Using a tester.(For terminal layout.EFI SYSTEM (3SZ-VE.1 and check the installation condition.ES–68 ENGINE CONTROL .1 (a) Check the concave and protruding parts of crank angle sensor plate No. see page ES . check whether there is continuity or a short between the engine control computer and the crank position sensor.16.) Standard Standard There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground Engine Control Computer ES N1+ N1- Tester Connection (Terminal Symbol) Engine Control Computer ←→ Crank Position Sensor 59 (N1+) ←→ 1 (+) Crankshaft Position Sensor Vehicle Side Connector 128 (N1-) ←→ 2 (-) NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR (+) (-) A133585J01 OK 4 INSPECT SENSOR INSTALLATION PART (a) Check the tightness and installation condition of the crank position sensor bolt. K3-VE) 3 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER CRANK POSITION SENSOR) (a) (b) Disconnect the engine control computer connector B and the crank position sensor connector. NG REPAIR OR REPLACE SENSOR PLATE NO. NG REPAIR OR REPLACE INSTALLATION PART SENSOR OK 5 CHECK CRANK ANGLE SENSOR PLATE NO. generating electromotive force in the pickup coil. 4. When the camshaft rotates.Diagnosis Condition 2.Other 1.EFI SYSTEM (3SZ-VE. When cranking No input of a certain number of cam position sensor 1 trip • • • • DTC No. Suspected Area P0340/14 Wire harness or connector Cam position sensor Camshaft Engine control computer ES CIRCUIT DIAGRAM Engine Control Computer Camshaft Position 1 58 N2 2 12 N2 A133586J02 .ENGINE CONTROL . 2. K3-VE) ES–69 DTC DESCRIPTION P0340/14 CAM ANGLE SENSOR SIGNAL SYSTEM The cam position sensor (N2 signal) consists of the pickup coil and the timing rotor that is mounted on the camshaft.Malfunction Condition 3. 3. This causes the magnetic field to change. the relative positions of the protruding part of the timing rotor and the air gap on the top of the pickup coil changes. DTC Detection Condition 1.Malfunction Time 4. Freeze frame data records aspects of the engine's condition when malfunctions occur. This information is helpful when troubleshooting. (a) Connect the DS-II to terminals 58(N2+) and 127 (N2-) of the engine control computer connectors. (1) Using a tester.16. OK CHECK AND REPLACE ENGINE CONTROL COMPUTER NG 2 CHECK CAM POSITION SENSOR (a) Check the resistance. the amplitudes become larger. Item Tester Connection Tool setting Measurement condition :N2+ ←→ N22 V/DIV. Standard: 835 to 1400 (when cold) 1060 to 1645 (when warm) NOTICE: The terms. 1 CHECK ENGINE CONTROL COMPUTER HINT: The function of the engine control computer cam position sensors can be checked using the oscilloscope function of the DS-II. 20 ms/DIV While engine is idling Condition A134284 HINT: • As engine speed increases.Cold is designated as a temperature between -10 and 50°C. this may indicate a mechanical system problem. K3-VE) INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II. Camshaft Position Sensor 2 1 (-) (+) A105341J11 NG REPLACE CAM POSITION SENSOR . refer to the temperature of the parts inspected.EFI SYSTEM (3SZ-VE. • As engine speed increases. (For terminal layout.ES–70 ENGINE CONTROL . • If the problem is not detected after first troubleshooting DTC P0340/14.) ES Engine Control Computer N2+ N2A133549J07 (b) Set the DS-II to the oscilloscope function. see page ES . Warm is designated as a temperature between 50 to 100 °C. measure the resistance between the connector terminals. • DTCs may be recorded due to noise. the cycles become shorter. cold and warm. EFI SYSTEM (3SZ-VE.) Standard: Engine Control Computer ES Tester Connection (Terminal Symbol) Engine Control Computer ←→ Crank Position Sensor 58 (N2+) ←→ 1 (+) N2+ N2- Standard There is continuity and no short between other terminals and body ground There is continuity and no short between other terminals and body ground Camshaft Position Sensor Vehicle Side Connector 127 (N2-) ←→ 2 (-) NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR (+) (-) A133587J01 OK 4 INSPECT SENSOR INSTALLATION PART (a) Check the tightness and installation condition of the cam position sensor bolt.(For terminal layout.16. Using a tester. NG OK REPAIR OR REPLACE CAMSHAFT CHECK AND REPLACE ENGINE CONTROL COMPUTER .ENGINE CONTROL . NG REPAIR OR REPLACE INSTALLATION PART SENSOR OK 5 Inspect camshaft (a) Check the concave and protruding parts of the camshaft and check the installation condition. K3-VE) ES–71 OK 3 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER CAM POSITION SENSOR) (a) (b) Disconnect the engine control computer connector B and the cam position sensor connector. see page ES . check whether there is continuity or a short between the engine control computer and the cam position sensor. the power transistor in the igniter cuts off the current in the primary coil. 2 Cylinder Throttle Position Sensor Intake Pressure Sensor Coolant Temperature Sensor Starter Signal Neutral Start Switch Ingnition Coil Assembly No. DTC Detection Condition 1. 1 trip Suspected Area P0350/16 Wire harness or connector IGNITION COIL ASSEMBLY Engine control computer . using 1 ignition coil for each cylinder.Other 1.ES–72 ENGINE CONTROL . 30 seconds 4. 2 No.The engine control computer determines the ignition timing and transmits ignition signals (IG) to each cylinder. 4 No. This generates electromotive force in the secondary coil. At time of engine start and when engine is • • operating at 1500 r/min or less • 2.EFI SYSTEM (3SZ-VE.The direct ignition system performs ignition.Malfunction Condition 3. Approx. 4 Cylinder A133588 DTC No. the direct ignition system reduces high voltage loss and enhances the overall reliability of the ignition system.Diagnosis Condition 2.Based on the IG signals. 3 No. K3-VE) DTC DESCRIPTION P0350/16 IGNITION PRIMARY SYSTEM A direct ignition system has been adopted. ES Engine Control Computer Crankshaft Position Sensor (N1 Signal) Camshaft Position Sensor (N2 Signal) Knock Control Sensor Battery Ignition Coil Assembly No. 1 No.Malfunction Time 4. 3 Cylinder Ignition Coil Assembly No. Along with increasing ignition accuracy. No IG signals continuously 3. The electromotive force in the secondary coil ignites the spark plug. 1 Cylinder Ignition Coil Assembly No. This information is helpful when troubleshooting. Freeze frame data records aspects of the engine's condition when malfunctions occur. 1 Cylinder) To IG2 Fuse 1 4 3 Engine Control Computer 63 IG1 Ignition Coil Assembly (No.ENGINE CONTROL . 3 Cylinder) 1 4 3 A9 61 IG3 Ignition Coil Assembly (No. check the voltage between terminals in the ignition coil assembly vehicle side connector. 4 Cylinder) 1 4 3 A8 60 IG4 A133589J01 INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II. Using a tester. If the DTC P0350/16 is still shown after the test. Turn the ignition switch to the ON position. Standard Standard 9 to 14 V 1 (+B) ←→ 4 (GND) Ignition Coil Assembly Vehicle Side Connector Tester Connection (Terminal Symbol) NG +B GND A109396J05 CHECK POWER SOURCE CIRCUIT OK . check the circuit of each cylinder.EFI SYSTEM (3SZ-VE. 2 Cylinder) 1 4 3 62 IG2 ES Ignition Coil Assembly (No. 1 CHECK WIRE HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT CHECK) (a) (b) (c) Disconnect the ignition coil assembly connector. • The inspection method for the No. K3-VE) ES–73 CIRCUIT DIAGRAM Ignition Coil Assembly (No.1 cylinder circuit is shown below. K3-VE) 2 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER IGNITION COIL ASSEMBLY) (a) (b) Disconnect the engine control computer connector A and ignition coil assembly connector.EFI SYSTEM (3SZ-VE. check whether there is continuity or a short between the engine control computer vehicle side connector and the ignition coil assembly vehicle side connector.) Standard Standard There is continuity and no short between other terminals and body ground Engine Control Computer ES IG1 Tester Connection (Terminal Symbol) Engine Control Computer ←→ Ignition Coil Assembly 63 (IG1) ←→ 3 (IG1) Ignition Coil Assembly Vehicle Side Connector NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR IG1 A133590J01 OK 3 GO REPLACE IGNITION COIL ASSEMBLY 4 CHECK FOR DTCs (a) (b) Connect the DS-II to the DLC. Using a tester.16.ES–74 ENGINE CONTROL . Result A P0350/16 B Indicates a normal code B A REPLACE ENGINE CONTROL COMPUTER SYSTEM RETURNS TO NORMAL . (For terminal layout. Read the DTCs by following the prompts on the screen. see page ES . 54) NG OK REPLACE FUEL INJECTOR ASSEMBLY . DTC Detection Condition 1. If this voltage exceeds a set value. repeating lean/rich signals in short cycles. the timing of the voltage of the lean/rich signal from the rear O2 sensor is calculated and compared to the lean/rich signal from the front 02 sensor. after the engine is completely warmedup 2.Malfunction Condition 3. The vehicle is driven at a speed of 50 km/ h. The voltage of the rear O2 sensor signal is large. K3-VE) ES–75 DTC DESCRIPTION P0420/27 CATALYST DETERIORATION The rear O2 sensor detects oxygen levels after the catalyst.Therefore. and the response of the rear O2 sensor from the front O2 sensor signal becomes more rapid than the set value. 2 trip • • • • • DTC No. NG REPAIR OR REPLACE EMISSION CONTROL SYSTEM OK 2 INSPECT FUEL INJECTOR ASSEMBLY (See page ES . the rear O2 sensor signal looks like that of the front O2 sensor.EFI SYSTEM (3SZ-VE.Diagnosis Condition 2.44) INSPECTION PROCEDURE 1 INSPECT EMISSION CONTROL SYSTEM HINT: For inspection procedures.ENGINE CONTROL . Suspected Area ES P0420/27 Exhaust system Ignition system Fuel system Engine control computer Wire harness or connector CIRCUIT DIAGRAM (See Page ES . See page EC . the DTC shown below will be recorded. and the response is rapid 3.Malfunction Time 4.Other 1. this indicates that the catalyst has deteriorated. If the catalyst has deteriorated. 40 seconds or more 4. In this case.1. see page FU . Also.ES–76 ENGINE CONTROL . NG OK REPAIR OR REPLACE FUEL SYSTEM 6 CHECK FOR EXHAUST GAS LEAKS NG REPAIR OR REPLACE LEAKAGE AREA EXHAUST GAS OK .1. see page IG . K3-VE) 3 CHECK COOLANT TEMPERATURE (a) Check the resistance. 20°C When approx. Standard Measurement Condition When approx. wipe the sensor dry after the check.326 kΩ ES Resistance [kΩ] NOTICE: Protect the terminal area from getting wet when checking the sensor by applying water. NG OK REPAIR OR REPLACE IGNITION SYSTEM 5 CHECK FUEL SYSTEM HINT: For inspection procedures.310 to 0.EFI SYSTEM (3SZ-VE. (1) Using the tester.32 to 2.59 kΩ 0. 80°C Standard 2. inspect the resistance between the terminals. NG REPLACE SENSOR COOLANT TEMPERATURE Temperature [°C] A050330 OK 4 INSPECT THE IGNITION SYSTEM HINT: For inspection procedures.3. 2 9 ROAD TEST TO CHECK OPERATION (a) Connect the DS-II to the DLC. (For terminal layout. 2 Vehicle Side Connector NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133576J05 OK REPLACE OXYGEN SENSOR NO. Warm up oxygen sensor No. select ECU DATA MONITOR.4 V or less and 0. check whether there is continuity or a short between the engine control computer and oxygen sensor No.EFI SYSTEM (3SZ-VE. Then select MODE CHANGE and LINE GRAPH. . K3-VE) ES–77 7 READ DS-II DATA (RrO2 SENSOR OUTPUT VOLTAGE) (a) (b) Connect the DS-II to the DLC.) Standard Standard There is continuity and no short between the other terminals and body ground There is continuity and no short between the other terminals and body ground Engine Control Computer Tester Connection (Terminal Symbol) Engine Control Computer ←→ Oxygen Sensor 18 (OX2) ←→ 3 (OX2) OX1 19 (E2) ←→ 4 (E2) Oxygen Sensor NO. Following the prompts on the DS-II screen. Using a tester.2.5 V or more (c) (d) ES OK NG GO TO STEP 9 8 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER OXYGEN SENSOR NO.16. see page ES .2. then RrO2 SENSOR OUTPUT VOLTAGE. Read the voltage of the RrO2 sensor output while racing the engine at a speed of 4000 r/min several times. Result: Voltage output is 0.ENGINE CONTROL .2 for approximately 90 seconds at an engine speed of 2500 r/min.2) (a) (b) Disconnect the engine control computer connector B and the connector of oxygen sensor No. HINT: Refer to the procedure for the oxygen sensor No. Turn the ignition switch to the ON position. and delete the DTCs by following the prompts on the DS-II screen. (1) Check if DTC P0420/27 is indicated. and read the DTCs by following the prompts on the DS-II screen.EFI SYSTEM (3SZ-VE.2 by performing a road test.2 output voltage inspection. Result B P0420/27 is not output again A P0420/27 is output again B A CHECK FOR INTERMITTENT PROBLEMS CHECK AND REPLACE ENGINE CONTROL COMPUTER . K3-VE) (b) (c) Turn the ignition switch to the ON position. warm up the oxygen sensor No. To check the system. GO ES 10 READ DTCs (a) (b) Connect the DS-II to the DLC.ES–78 ENGINE CONTROL . EFI SYSTEM (3SZ-VE.Purge volume is determined based on the ON/OFF time ratio (duty ratio). K3-VE) ES–79 DTC DESCRIPTION P0443/76 EVAP PURGE VSV Evap purge VSV controls evaporation purge volume based on a signal (duty signal) from the engine control computer.Malfunction Condition 3. Suspected Area P0443/76 Evap purge VSV Wire harness or connector Engine control computer ES CIRCUIT DIAGRAM Engine Control Computer EVAP Purge VSV To EFI Relay 2 1 16 PRG A138379J01 . 3. 2.Diagnosis Condition 2. 4.Malfunction Time 4. DTC Detection Condition 1.Other 1. After engine start Evap purge control signal malfunction VSV operates more than 3 times 2 trip • • • DTC No.ENGINE CONTROL . K3-VE) INSPECTION PROCEDURE 1 INSPECT EVAP PURGE VSV (a) Check the air-flow. Using a tester. (1) Using the tester. check whether there is continuity or a short between the engine control computer vehicle side connector terminal 16 (PRG) and evap purge VSV vehicle side connector terminal 1 (-). see page ES . Standard: 30 to 34 Ω (20°C) NG OK REPLACE EVAP PURGE VSV 2 CHECK WIRE HARNESS AND CONNECTOR (POWER SOURCE VOLTAGE CHECK) (a) (b) (c) Disconnect the connector of the evap purge VSV connector.16. Using a tester. Standard Inspection Condition Air-flow No air-flow Air-flow Port ES (b) A134303J01 No current Current Check the resistance. Turn the ignition switch to the ON position.ES–80 ENGINE CONTROL . measure the voltage between evap purge VSV vehicle side connector terminal 2 (+) and the body ground.EFI SYSTEM (3SZ-VE. Standard: 9 to 14 V NG OK CHECK POWER SOURCE CIRCUIT 3 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER EVAP PURGE VSV) (a) (b) Disconnect connector A of the engine control computer and the connector of the evap purge VSV. (For terminal layout. inspect the resistance between the terminals. (1) Check for air-flow between the ports when voltage is applied to the connector terminals.) Standard: There is continuity and no short between the other terminals and body ground NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK REPLACE ENGINE CONTROL COMPUTER . Standard: The DS-II and speedometer displays are identical.Malfunction Condition 3. DTC Detection Condition 1. Connect the DS-II to the DLC.Other 1.Diagnosis Condition 2.EFI SYSTEM (3SZ-VE.ENGINE CONTROL . OK NG CHECK FOR INTERMITTENT PROBLEMS . Suspected Area P0500/52 Combination meter Speed sensor Wire harness or connector Engine control computer ES CIRCUIT DIAGRAM Engine Control Computer Combination Meter 21 9 CANH HCAN CANL 22 8 LCAN A134898J01 INSPECTION PROCEDURE 1 READ DS-II DATA (VEHICLE SPEED) (a) (b) (c) Make sure that the speedometer operates normally. While driving (when slowing down and during fuel-cut) 2. 3 seconds or more 4.Malfunction Time 4. Vehicle speed signal is not input 3. K3-VE) ES–81 DTC DESCRIPTION P0500/52 VEHICLE SPEED SIGNAL SYSTEM The vehicle speed signal is transmitted to the engine control computer via CAN communication. Read the vehicle speed displayed on the DS-II. 2 trip • • • • DTC No. Standard Tester Display DTC P0500/52 is detected DTC P0500/52 is not detected Proceed to A B ES B A SYSTEM RETURNS TO NORMAL REPAIR OR REPLACE ENGINE CONTROL COMPUTER . Turn the ignition switch to the ON position. and read the DTCs by following the prompts on the DS-II screen. K3-VE) 2 GO TO METER AND GAUGE SYSTEM 3 READ DTCs (a) (b) Connect the DS-II to the DLC.ES–82 ENGINE CONTROL .EFI SYSTEM (3SZ-VE. (1) Check if DTC P0500/52 is detected. Diagnosis Condition 2. 2. 4. While engine is idling Short or open in ISCV circuit 3 seconds or more 1 trip • • • Suspected Area P0505/33 ISCV Wire harness or connector Engine control computer .ENGINE CONTROL .Malfunction Condition 3.Malfunction Time 4. To control the idle speed. The intake air that by-passes the throttle valve passes through the passage to the ISCV. Throttle Valve ES Intake Air Surge Tank Signal Engine ECU To Cylinder ISC Valve A050586 DTC No. DTC Detection Condition 1. K3-VE) ES–83 DTC DESCRIPTION P0505/71 ISC VALVE SYSTEM The throttle body idle speed control valve assembly (ISCV) of the rotary solenoid type is installed on the throttle body. the engine control computer controls the intake air passage of the ISC valve and sends a signal to allow the idle speed to be adjusted towards the target idling speed.Other 1. 3.EFI SYSTEM (3SZ-VE. ES–84 ENGINE CONTROL . This information is helpful when troubleshooting. OK NG CHECK FOR INTERMITTENT PROBLEMS . K3-VE) CIRCUIT DIAGRAM Engine Control Computer ISCV 2 1 65 To EFI Relay ISC ES 3 A133591J01 INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II.Freeze frame data records aspects of the engine's condition when malfunctions occur.EFI SYSTEM (3SZ-VE. 1 PERFORM DS-II ACTIVE TEST (ISC DUTY RATIO) (a) (b) Following the prompts on the DS-II screen . Check that the engine speed changes when the ISC duty ratio is changed. Standard: The engine speed increases or decreases in response to changes in the ISC duty ratio. select ACTIVE TEST. 16.(For terminal layout. Using a tester. see page ES .ENGINE CONTROL . Using a tester. measure the voltage of the ISCV vehicle side connecter terminals. (b) CHECK OPERATION (1) Connect the wire harness to the removed ISCV. (a) Remove the ISCV. . K3-VE) ES–85 2 CHECK THROTTLE BODY IDLE SPEED CONTROL VALVE ASSEMBLY (POWER SOURCE CIRCUIT) (a) (b) (c) Disconnect the ISCV connector. check whether there is continuity or a short between the engine control computer and the ISCV.EFI SYSTEM (3SZ-VE. Turn the ignition switch to the ON position. Standard Standard 9 to 14 V 2 (B) ←→ 3 (RSC) RSO B RSC A133868 ISCV Vehicle Side Connector Tester Connection (Terminal Symbol) NG CHECK POWER SOURCE CIRCUIT ES OK 3 CHECK WIRE HARNESS OR CONNECTOR (ISC CIRCUIT) (a) (b) Disconnect the engine control computer connector A and ISCV connector.) Standard Standard There is continuity and no short between the other terminals and body ground Engine Control Computer Tester Connection (Terminal Symbol) Engine Control Computer ←→ ISCV 65 (ISC) ←→ 1 (RSO) ISC NG ISCV Vehicle Side Connector REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR RSO B RSC A133869 OK 4 CHECK THROTTLE BODY IDLE SPEED CONTROL VALVE ASSEMBLY NOTICE: • Delete the DTCs after the inspection. ES–86 ENGINE CONTROL . Standard: Neutral (50% open) → Fully closed → Fully open → Neutral (50% open) HINT: Operation should start within 0. NG REPLACE THROTTLE BODY IDLE SPEED CONTROL VALVE ASSEMBLY ES OK CHECK AND REPLACE ENGINE CONTROL COMPUTER .EFI SYSTEM (3SZ-VE. K3-VE) (2) With the ignition in the ON position.5 seconds. check the operation of the valve. IG ON 2. K3-VE) ES–87 DTC DESCRIPTION P0535/44 A/C EVAPORATOR TEMPERATURE SENSOR SIGNAL SYSTEM Cooler thermistor No. 1 trip • • • DTC No.1 (EVAPORATOR REAR SENSOR) (a) Disconnect the connector of cooler thermistor No.1 (evaporator rear sensor) is installed in the evaporator of the air conditioner unit. Suspected Area ES P0535/44 Cooler thermistor No.EFI SYSTEM (3SZ-VE.5 seconds or more 4.1 (evaporator rear sensor) circuit 3.1 (evaporator rear sensor) Wire harness or connector Engine control computer CIRCUIT DIAGRAM Cooler Thermistor NO. 1 (Post-EVAP Sensor) Engine Control Computer 1 45 ACEV 2 116 E21 A134276J01 INSPECTION PROCEDURE 1 CHECK COOLER THERMISTOR NO. DTC Detection Condition 1. Continuously for 0.Malfunction Time 4.1 senses the temperature of the cooled air that has passed through the evaporator as a change in resistance.Other 1. Cooler thermistor No.Malfunction Condition 3. .1 (evaporator rear sensor). Open or short in cooler thermistor No.Diagnosis Condition 2. It outputs this change in resistance to the engine control computer.ENGINE CONTROL . check whether there is continuity or a short between the engine control computer vehicle side connector C and the connector terminals of cooler thermistor No.ES–88 ENGINE CONTROL .16. you body temperature will confuse the measurement.1.1 [EVAPORATOR REAR SENSOR]) (a) (b) Engine Control Computer Disconnect the engine control computer connector C and the connector of cooler thermistor No.1 OK 2 INSPECT WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER COOLER THERMISTOR NO.1 (evaporator rear sensor).1 (Evaporator Rear Sensor) ACEV E21 Standard 45 (ACEV) ←→ 1 (+) There is continuity and no short between the other terminals and body ground There is continuity and no short between the other terminals and body ground Cooler Thermistor No.EFI SYSTEM (3SZ-VE.Therefore.1 kΩ 2.6 kΩ 1 2 A133916 ES NOTICE: • If you touch the temperature sensor with your hand.) Standard Tester Connection (Terminal Symbol) Engine Control Computer ←→ Cooler Thermistor No. • Wait until the sensor adjusts to a stable ambient temperature before performing the inspection. K3-VE) (b) Using a tester.(For terminal layout. Using a tester.1.1 to 2. see page ES . NG REPLACE COOLER THERMISTOR (EVAPORATOR REAR SENSOR) NO.1 Vehicle Side Connector 116 (E21) ←→ 2 (-) NG (+) REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR (-) A133915J01 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER . check the resistance between terminals 1 and 2 of the connector of cooler thermistor No.6 to 5. Standard Temperature 0°C 15 °C Standard 4. make sure to hold the connector side when performing the measurements. Malfunction Time 4. Standard Result DTC P1105/32 is detected DTC P1105/32 is not detected Proceed to A B B A CHECK FOR INTERMITTENT PROBLEMS REPAIR OR REPLACE ENGINE CONTROL COMPUTER .Other 1. Read the DTCs using the DS-II.ENGINE CONTROL .Malfunction Condition 3. Suspected Area ES • Engine control computer P1105/32 INSPECTION PROCEDURE 1 CLEAR DTCs. 1 trip DTC No.EFI SYSTEM (3SZ-VE. 1 second or more 4. (a) (b) Connect the DS-II to the DLC.Diagnosis Condition 2. 2 READ DTCs (a) (b) Connect the DS-II to the DLC. After engine start 2. Delete the DTCs using the DS-II. No signals from atmospheric pressure sensor 3. K3-VE) ES–89 DTC DESCRIPTION P1105/32 ATMOSPHERIC PRESSURE SENSOR SIGNAL SYSTEM The atmospheric pressure sensor is built into the EFI ECU. DTC Detection Condition 1. K3-VE) DTC DESCRIPTION P1300/36 IONIC CURRENT SYSTEM This system detects engine misfires by using the fact that the ionic current generated by combustion pressure has an identical waveform. DTC Detection Condition 1. Approx.ES–90 ENGINE CONTROL . 2 Intake Pressure Sensor No. ICMB signal is not input (continuously input) 3. ES Crankshaft Position Sensor ( N1 Signal ) Camshaft Position Sensor ( N2 Signal ) Engine Control Computer Battery Ignition Coil Assembly No. 4 Cylinder Neutral Starter Switch Ignition Coil Assembly No. 3 No.1 Ion Current Detection Circuit No. 2 trip • • • • • Suspected Area P1300/36 IGNITION COIL ASSEMBLY Fuel system Ignition system Wire harness or connector Engine control computer . ionic current is not generated. 1 Cylinder Knock Control Sensor Throttle Position Sensor Ignition Coil Assembly No.EFI SYSTEM (3SZ-VE.Diagnosis Condition 2. when the voltage transmitted to the engine control computer is lower than specified.4. the engine control computer detects a misfire. A135529 DTC No.Malfunction Time 4.Other 1. 2 Cylinder Coolant Temperature Sensor Ignition Coil Assembly No. 3 Cylinder Starter Signal No.If a misfire occurs. Engine is warmed up and running 2. Therefore.Malfunction Condition 3.30 seconds 4.If the detected ionic current is extremely weak it is amplified by the igniter. 1 cylinder circuit is shown below. K3-VE) ES–91 CIRCUIT DIAGRAM Ignition Coil Assembly ( No.EFI SYSTEM (3SZ-VE.1) NG OK REPAIR OR REPLACE IGNITION SYSTEM 2 CHECK ENGINE CONTROL COMPUTER (IG SYSTEM) HINT: The communication between the engine control computer and the ignition coil assembly can be checked using the oscilloscope function of the DS-II. • The inspection method for the No. check the circuit of each cylinder.Freeze frame data records aspects of the engine's condition when malfunctions occur. . 1 Cylinder ) To E/G Fuse 1 4 3 2 Engine Control Computer A11 B11 IG1 ICMB1 Ignition Coil Assembly ( No. 1 INSPECT IGNITION SYSTEM (See page IG .ENGINE CONTROL . 2 Cylinder ) 1 4 3 2 A10 B10 IG2 ICMB2 ES Ignition Coil Assembly ( No. 3 Cylinder) 1 4 3 2 A9 B9 IG3 ICMB3 Ignition Coil Assembly ( No. This information is helpful when troubleshooting. 4 Cylinder) 1 4 3 2 A8 B8 IG4 ICMB4 A135526 INSPECTION PROCEDURE HINT: • Read the freeze frame data using the DS-II. If the DTC P1300/36 is still shown after the test. .(For terminal layout. IG3. check whether there is continuity or a short between the engine control computer vehicle side connector and the ignition coil assembly vehicle side connector. REPLACE ENGINE CONTROL COMPUTER 3 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER IGNITION COIL) (a) (b) Disconnect engine control computer connectors A and B and the ignition coil assembly connector. IG2.16) Standard Standard There is continuity and no short between the other terminals and body ground There is continuity and no short between the other terminals and body ground Engine Control Computer Tester Connection (Terminal Symbol) Engine Control Computer ←→ Ignition Coil Assembly 63 (IG1) ←→ 3 (IG1) IG1 ICMB1 51 (ICMB1) ←→ 2 (ION) Ignition Coil Assembly Vehicle Side Connector NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ION IG1 A135525 OK 4 CHECK WIRE HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT CHECK) (a) (b) Disconnect the ignition coil assembly connector. the waveform cycle becomes shorter. • The oscilloscope waveform shown as an example does not include noise or chattering waveforms. 10 ms/DIV Engine is warmed up and idling A134282 ES NG OK HINT: • As the engine speed increases.ES–92 ENGINE CONTROL . Using a tester.EFI SYSTEM (3SZ-VE. IG4 ←→ E1 5 V/DIV. K3-VE) (a) CHECK OUTPUT WAVEFORM (1) Connect the DS-II between the terminals of the engine control computer and set the DS-II to the oscilloscope function. Turn the ignition switch to the ON position. Tester Connection Tool setting Measurement Condition IG1. See page ES . • The oscilloscope waveform shown as an example does not include noise or chattering waveforms.ENGINE CONTROL . ICMB4 2 V/DIV. ICMB2. IG4 ←→ E1 CH2: ICMB1. coolant temperature is 80°C or higher. Standard Standard 9 to 14 V 1 (+B) ←→ 4 (GND) Tester Connection (Terminal Symbol) NG +B GND A109396J05 REPAIR OR REPLACE POWER SOURCE SYSTEM OK ES CHECK ENGINE CONTROL COMPUTER (ICBM) HINT: The communication between the engine control computer and the ignition coil assembly can be checked using the oscilloscope function of the DS-II. 20 ms/DIV Engine is warmed up and idling. (a) CHECK OUTPUT WAVEFORM (1) Connect the DS-II between the terminals of the engine control computer and set the DS-II to the oscilloscope function.EFI SYSTEM (3SZ-VE. IG2. K3-VE) ES–93 (c) Ignition Coil Assembly Vehicle Side Connector Using a tester. IG3. NG OK TO FUEL SYSTEM REPLACE IGNITION COIL . air conditioner is ON 2 Measurement Condition A140669 HINT: • The output waveform (CH2) of the ionic current combustion control signal generated between the output waveform of the ignition signal is the ionic current combustion control signal of cylinder #4 when cylinder #1 is inspected. (When cylinder #2 is inspected. check the voltage between the terminals in the ignition coil assembly vehicle side connector. cylinder #3). ICMB3. 5 1 Tester Connection Tool setting CH1: IG1. K3-VE) DTC P01346/75 VVT CONTROL SYSTEM (VALVE TIMING FAIL) DESCRIPTION The VVT system controls the open/close timing of the air intake valve to achieve the appropriate timing in accordance with vehicle operating conditions. Valve timing deviation (cannot achieve targeted valve timing) 3. DTC Detection Condition 1. NG Timing Marks ADJUST VALVE TIMING Notch A138143J01 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER .Diagnosis Condition 2. 2 trip • • • DTC No.ES–94 ENGINE CONTROL .EFI SYSTEM (3SZ-VE. While engine is running 2. Suspected Area ES P1346/18 Mechanical system malfunction (timing chain jumped a tooth or chain stretched) VALVE TIMING ENGINE CONTROL COMPUTER INSPECTION PROCEDURE 1 CHECK VALVE TIMING Standard: See the illustration.Other 1.Malfunction Condition 3. 5 seconds or more 4.The engine control computer controls the camshaft and camshaft oil control valves in order to properly adjust the open/close timing of the air intake valve. and changes the relative position between the camshaft and crankshaft by operating the camshaft timing gear assembly.Malfunction Time 4. or valve timing is fixed. (1) Check if DTC P1349/73 is output. Turn the ignition switch to the ON position. 2 trip • • • • • DTC No.EFI SYSTEM (3SZ-VE.Other 1. Suspected Area ES P1349/59 VALVE TIMING CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY CAMSHAFT TIMING GEAR ASSEMBLY VVT SYSTEM OIL PATH Engine control computer CIRCUIT DIAGRAM Engine Control Computer Camshaft Timing Oil Control Valve Assembly 1 26 OCV+ 2 25 OCV- G100100J14 INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II.The engine control computer controls the camshaft and camshaft oil control valve assembly in order to properly adjust the open/close timing of the air intake valve.Malfunction Condition 3. 1 READ DTCs (a) (b) (c) (d) Connect the DS-II to the DLC.Malfunction Time 4.Diagnosis Condition 2. Check for DTCs following the prompts on the DS-II screen. Perform a road test. K3-VE) ES–95 DTC DESCRIPTION P1349/73 VVT CONTROL (ADVANCE RETARD ANGLE FAIL) ANGLE AND The VVT system controls the open/close timing of the air intake valve to achieve the appropriate timing in accordance with vehicle operating conditions. DTC Detection Condition 1. Cannot achieve valve timing within ±5°of target. This information is helpful when troubleshooting. Engine speed of 500 to 4000 r/min. 5 seconds or more 4. and delete the DTCs by following the prompts on the DS-II screen.ENGINE CONTROL . and changes the relative position between the camshaft and crankshaft by operating the camshaft timing gear assembly. does not vary 3. Result: . and coolant temperature between 80 to 110°C 2. Freeze frame data records aspects of the engine's condition when malfunctions occur. 9 (20°C) . K3-VE) A Indicates P1349/73 B Does not indicate P1349/73 B A CHECK FOR INTERMITTENT PROBLEMS 2 CHECK VALVE TIMING Standard: See the illustration.ES–96 ENGINE CONTROL . (1) Using a tester.9 to 7. Standard: 6. measure the resistance between the terminals. ES NG Timing Marks ADJUST VALVE TIMING Notch A138143J01 OK 3 CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Check the resistance.EFI SYSTEM (3SZ-VE. NOTICE: Make sure the spool valve is not stuck. Turn the ignition switch to the ON position. NG REPLACE CAMSHAFT ASSEMBLY TIMING GEAR OK 5 CHECK OIL CONTROL VALVE FILTER (a) Check that the oil control valve filter is not blocked. HINT: If the spool valve does not return due to foreign matter like sludge. and delete the DTCs by following the prompts on the DS-II screen. then check that the spool valve operates. the pressure may leak slightly toward the advanced side. This leakage may cause DTCs to be recorded. Standard: There is no blockage or foreign matter. View of A NG A REPLACE CAMSHAFT TIMING CONTROL VALVE ASSEMBLY OIL ES A133914 OK 4 CHECK CAMSHAFT TIMING GEAR ASSEMBLY (a) Make sure that the camshaft timing gear assembly is not damaged.EFI SYSTEM (3SZ-VE. Perform a road test.ENGINE CONTROL . K3-VE) ES–97 (b) (+) (-) CHECK OPERATION (1) Apply battery voltage across the terminals. . NG REPLACE OIL CONTROL VALVE FILTER Mesh Portion A079997 OK 6 READ DTCs (a) (b) (c) Connect the DS-II to the DLC. EFI SYSTEM (3SZ-VE. Result: A Indicates P1349/73 B Does not indicate P1349/73 B A CHECK FOR INTERMITTENT PROBLEMS ES CHECK AND REPLACE ENGINE CONTROL COMPUTER . K3-VE) (d) Check for DTCs following the prompts on the DS-II screen. (1) Check if DTC P1349/73 is output.ES–98 ENGINE CONTROL . K3-VE) ES–99 DTC DESCRIPTION P1351/62 TIMING CHAIN CONTROL SYSTEM The VVT system controls the open/close timing of the air intake valve to achieve the appropriate timing in accordance with vehicle operating conditions. While engine is running Valve timing deviation 5 seconds or more 5 trip • • • DTC No. and changes the relative position between the camshaft and crankshaft by operating the camshaft timing gear assembly.Malfunction Time 4. NG Timing Marks ADJUST VALVE TIMING Notch A138143J01 OK REPLACE CHAIN .Diagnosis Condition 2.Other 1.ENGINE CONTROL . DTC Detection Condition 1.Malfunction Condition 3. The engine control computer controls the camshaft and the camshaft timing oil control valve in order to properly adjust the open/close timing of the air intake valve. 4. 3.EFI SYSTEM (3SZ-VE. Suspected Area ES Mechanical system malfunction (timing chain jumped a tooth or chain stretched) VALVE TIMING Engine control computer P1351/62 INSPECTION PROCEDURE 1 CHECK VALVE TIMING Standard: See the illustration. 2. Other 1. K3-VE) DTC DESCRIPTION P1510/54 STARTER SIGNAL SYSTEM The starter operation signal is transmitted to the STSW terminal of the engine control computer while the engine cranks. 1 trip * DTC No. Suspected Area ES P1510/54 • • Wire harness or connector Engine control computer * : 2 trip for EU specifications.ES–100 ENGINE CONTROL .EFI SYSTEM (3SZ-VE. There are no ON signals even when engine speed reaches a set value at a vehicle speed of 0 km/h 3.Malfunction Time 4. 4.Malfunction Condition 3. DTC Detection Condition 1.The starter operating signal is used primarily for increasing fuel injection volume when the engine starts.Diagnosis Condition 2. . After engine start 2. If the engine cannot be cranked.EFI SYSTEM (3SZ-VE.ENGINE CONTROL . (a) .4) 1 INSPECT ENGINE CONTROL COMPUTER SST 09842-97209 Connect the SST (sub harness. EFI computer check) to the engine control computer. (b) Turn the ignition switch to the ON position. K3-VE) ES–101 CIRCUIT DIAGRAM Ignition Switch Engine Control Computer 5 1 Starter Relay 3 2 S AM 10 STS ES MAI Transmission Control Computer Starter A133870J02 INSPECTION PROCEDURE HINT: This diagnosis procedure assumes that the engine is not malfunctioning and can be cranked with the starter. (See page ES . determine the suspected area using a problem symptoms table. ES–102 ENGINE CONTROL . (For terminal layout. be careful not to damage the holder part by pressing it too hard.16. Using a tester.) Standard: 10 to 14 V OK E1 STSW A133549J16 CHECK AND REPLACE ENGINE CONTROL COMPUTER ES NG 2 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER STARTER RELAY) (a) (b) (c) Disconnect the engine control computer connector D. Remove the starter relay.EFI SYSTEM (3SZ-VE.16. 2 5 3 1 NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133871J01 OK CHECK AND REPAIR POWER SOURCE SYSTEM .) Standard Engine Control Computer Tester Connection (Terminal Symbol) Engine Control Computer ←→ Relay Block Holder For Installing Starter Relay 107 (STSW) ←→ 4 STSW Standard There is continuity and no short between the other terminals and body ground NOTICE: When applying the tester probe to the holder during inspection. (For terminal layout. K3-VE) (c) Engine Control Computer Using a tester. check whether there is continuity or a short between the engine control computer and the starter relay block holder terminal. see page ES . see page ES . measure the voltage between terminals D26 (STSW) and B32 (E1) of the engine control computer connector. Other 1.EFI SYSTEM (3SZ-VE.ENGINE CONTROL . DTC Detection Condition 1. Suspected Area P1560/61 Engine control computer Wire harness or connector EFI fuse ES CIRCUIT DIAGRAM Engine Control Computer MAIN EFI C7 38 BAT B32 125 Battery E1 A133908J01 INSPECTION PROCEDURE 1 CHECK ENGINE CONTROL COMPUTER SST 09842-97209 (a) Connect the SST (sub harness. K3-VE) ES–103 DTC DESCRIPTION P1560/61 SHORT TO BACK UP POWER SOURCE Even when the ignition switch is turned off.Diagnosis Condition 2. 3 trip • • • DTC No. Ignition is in ON position (battery voltage exceeds 10 V) 2. 4. EFI computer check) to the engine control computer. This power is used for recording DTC or data when malfunctions occur. battery power is supplied to the BAT terminal of the engine control computer.Malfunction Condition 3. Open to back-up power source circuit 3.Malfunction Time 4. . Standard: Continuity Engine Room R/B NG REPLACE FUSES EFI Fuse A133909J01 OK CHECK OR REPLACE ENGINE ECU POWER CIRCUIT . K3-VE) (b) Engine Control Computer Measure the voltage between the engine control computer terminals using a tester.EFI SYSTEM (3SZ-VE.) Standard Standard 10 to 14 V 38 (BATT) ←→ 125 (E1) Tester Connection (Terminal Symbol) OK E1 BAT A133549J08 CHECK FOR INTERMITTENT PROBLEMS ES NG 2 CHECK FUSE (EFI FUSE) (a) (b) Remove the EFI fuse from the inside of the engine room R/B. check the EFI fuse for continuity.16. Using a tester.ES–104 ENGINE CONTROL . (For terminal layout. see page ES . ENGINE CONTROL - EFI SYSTEM (3SZ-VE, K3-VE) ES–105 DTC DESCRIPTION KEYLESS SYSTEM / IMMOBILISER SYSTEM P1600/83 COMMUNICATION SYSTEM (MALFUNCTION IN ECU) The transponder key computer assembly (immobiliser ECU) ensures security by controlling the START/END of the communication of matching codes with the engine control computer. It does so in accordance with ignition ON/OFF status and the immobiliser SET/UNSET status. If the communication cannot be matched due to a malfunction in the engine control computer, a DTC is recorded. DTC Detection Condition 1.Diagnosis Condition 2.Malfunction Condition 3.Malfunction Time 4.Other 1. IG ON 2. Communication stopped with immobiliser ECU 3. 1 second or more 4. 1 trip ES Suspected Area DTC No. P1600/83 • Engine control computer INSPECTION PROCEDURE 1 READ DTCs (a) (b) Connect the DS-II to the DLC. Turn the ignition switch to the ON position, and read the DTCs by following the prompts on the DS-II screen. HINT: If P1600/83 is detected, this indicates that the engine computer is malfunctioning. Replace the engine control computer. REPLACE ENGINE CONTROL COMPUTER ES–106 ENGINE CONTROL - EFI SYSTEM (3SZ-VE, K3-VE) DTC DESCRIPTION KEYLESS / IMMOBILISER SYSTEM P1601/81 COMMUNICATION SYSTEM (CODE DOES NOT MATCH, COMMUNICATION ERROR) The transponder key computer assembly (immobiliser ECU) ensures security by controlling the START/END of the communication of matching codes with the engine control computer. It does so in accordance with the ignition ON/OFF status and the immobiliser SET/UNSET status. ES DTC No. DTC Detection Condition 1.Diagnosis Condition 2.Malfunction Condition 3.Malfunction Time 4.Other 1. IG ON 2. Communication problem with transponder key computer assembly (immobiliser ECU) or code mismatch 3. 1 second or more 4. 1 trip • • • Suspected Area P1601/81 TRANSPONDER KEY COMPUTER ASSEMBLY (IMMOBILISER ECU) Engine control computer Wire harness or connector CIRCUIT DIAGRAM Engine Control Computer Smart ECU SIO2 9 117 SIO2 A133872J02 INSPECTION PROCEDURE 1 READ DTCs (a) (b) Connect the DS-II to the DLC. Turn the ignition switch to the ON position, and read the DTCs by following the prompts on the DS-II screen. ENGINE CONTROL - EFI SYSTEM (3SZ-VE, K3-VE) ES–107 Standard: DTC P1601/81 is not output OK NG CHECK FOR INTERMITTENT PROBLEMS 2 CHECK WIRE HARNESS AND CONNECTOR (a) (b) Disconnect the engine control computer connector C and the immobiliser ECU connector. Using a tester, check whether there is continuity or a short between the engine control computer vehicle side connector and the immobiliser ECU vehicle side connector. (For terminal layout, see page ES - 16.) Standard Standard There is continuity and no shorts between other terminals and body ground ES Engine Control Computer Inspection Terminal (Terminal Name) Engine Control Computer ←→ Smart ECU 117 (SIO2) ←→ 8 (SIO2) SIO2 Connector C Transponder Key Computer Assembly Vehicle Side Connector NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR SIO2 B143232J01 OK 3 RE-REGISTRATION (ENGINE CONTROL COMPUTER IMMOBILISER ECU (a) (b) (c) (d) Connect the DS-II to the DLC. Delete the DTCs using the DS-II. Register the matching codes for the engine control computer and immobiliser ECU. Turn the ignition switch to the ON position, and read the DTCs by following the prompts on the DS-II screen. Standard: DTC P1601/81 is not output OK NG SYSTEM RETURNS TO NORMAL 4 REPLACE ENGINE CONTROL COMPUTER (a) Replace with a new or a known-good engine control computer. register the keys. turn the ignition switch to the ON position. then read the DTCs. Standard: DTC P1601/81 is not output OK NG SYSTEM RETURNS TO NORMAL REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY ES .ES–108 ENGINE CONTROL .EFI SYSTEM (3SZ-VE. K3-VE) (b) After replacing the engine control computer. (1) Apply battery voltage across the terminals.Malfunction Time 4. (b) (+) (-) View of A NG A REPLACE CAMSHAFT TIMING CONTROL VALVE ASSEMBLY OIL A133914 OK 2 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY) (a) Disconnect the engine control computer connector A and the connector of the camshaft timing oil control valve assembly.Malfunction Condition 3.95) P1656/74 OCV CONTROL SYSTEM DTC No. measure the resistance between the terminals.Freeze frame data records aspects of the engine's condition when malfunctions occur. Standard: 6.EFI SYSTEM (3SZ-VE. IG ON 2. 1 trip • • • Trouble Area P1656/39 Wire harness or connector Camshaft timing oil control valve assembly Engine control computer ES CIRCUIT DIAGRAM (See ES . .ENGINE CONTROL . 1 CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Check the resistance.95) INSPECTION PROCEDURE HINT: Read the freeze frame data using the DS-II. NOTICE: Make sure the spool valve is not stuck. then check that the spool valve operates.9 to 7. the pressure may leak slightly toward the advanced side.Other 1. Short or open to camshaft timing oil control valve assembly and circuit 3. 1 second or more 4. This leakage may cause DTCs to be recorded. K3-VE) ES–109 DTC DESCRIPTION (See ES .Diagnosis Condition 2. DTC Detection Condition 1. HINT: If the spool valve does not return due to foreign matter like sludge.9 (20°C) Check operation. This information is helpful when troubleshooting. (1) Using a tester. 16.) Standard Tester Connection (Terminal Symbol) Engine Control Computer ←→ Camshaft Timing Oil Control Valve Assembly 26 (OCV+) ←→ 1 (+) OCV- Standard There is continuity and no short between the other terminals and body ground There is continuity and no short between the other terminals and body ground ES OCV+ 25 (OCV-) ←→ 2 (-) Oil Control Valve Vehicle Side Connector NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A103589J02 OK 3 CHECK ENGINE CONTROL COMPUTER HINT: The communication between the engine control computer and the cam shaft oil control valves can be checked using the oscilloscope function of the DS-II. see page ES . A134292 NG CHECK AND REPLACE ENGINE CONTROL COMPUTER . (a) Connect the DS-II between terminals 26 (OCV+) and 25 (OCV-) of the engine control computer connector. (See the DS-II instruction manual for the setting procedures. (For terminal layout. see page ES .EFI SYSTEM (3SZ-VE.(For terminal layout. check whether there is continuity or a short between the engine control computer and the camshaft timing oil control valve assembly. 20 ms/DIV While engine is idling Condition HINT: As the engine speed increases. the waveform cycle becomes shorter.) Engine Control Computer OCV+ OCVA103583J06 (b) Set the DS-II to the oscilloscope function.16.) Item Tester Connection Tool setting Measurement Condition OCV+ ←→ OCV5 V/DIV.ES–110 ENGINE CONTROL . K3-VE) (b) Engine Control Computer Using a tester. K3-VE) ES–111 OK CHECK FOR INTERMITTENT PROBLEMS ES .ENGINE CONTROL .EFI SYSTEM (3SZ-VE. 1 second 4. K3-VE) DTC DTC DTC DTC U0101/82 EAT / CVT COMMUNICATION (RECEPTION) U0121/86 ABC COMMUNICATION (RECEPTION) U0156/87 METER COMMUNICATION (RECEPTION) U1000/85 EAT COMMUNICATION (TRANSMISSION) U1002/88 CAN COMMUNICATION ES DTC DESCRIPTION Via CAN communication. IG ON 2. 2. CANL open or transmission control computer malfunction 3. the engine control computer sends and receives signals to and from the transmission control computer. 1 trip 1.ES–112 ENGINE CONTROL .Malfunction Condition 3. 1 second 4. IG ON CANH. 3.Malfunction Time 4. CANL open 1 second 1 trip IG ON HCAN. 3.Other 1. 1. IG ON 2. the skid control computer and the combination meter. CANH. CANL open or short 1 second 1 trip • Wire harness or connector U1002/88 • Wire harness or connector .Diagnosis Condition 2. 2.EFI SYSTEM (3SZ-VE. CANL open or transmission control computer malfunction 3. DTC Detection Condition 1. Suspected Area U0101/82 • • Wire harness or connector Transmission control computer U0121/86 • Wire harness or connector U0156/87 • Wire harness or connector U1000/85 1. 4. 4. 4. 3. LCAN open 1 second 1 trip DTC No. 2. CANH. IG ON CANH. 1 trip 1. EFI SYSTEM (3SZ-VE. .ENGINE CONTROL . HINT: When CAN communication DTCs and related sensor DTCs are detected at the same time. K3-VE) ES–113 CIRCUIT DIAGRAM Combination Meter ES CANH CANL CANH CANL Actuator Assembly CAN J/C CANH CANL CANH CANL CANH CANL HCAN HCAN LCAN LCAN Engine Control Computer Transmission Control Computer A138315J01 INSPECTION PROCEDURE 1 READ DTCs (a) Record the output DTCs. troubleshoot the sensor DTCs after CAN communication has returned to its normal status. K3-VE) GO TO TROUBLESHOOTING FOR CAN COMMUNICATION SYSTEM ES .EFI SYSTEM (3SZ-VE.ES–114 ENGINE CONTROL . While N1 is input (with the engine running). This turns the relay switch turns ON. The fuel pump receives current and operates.ENGINE CONTROL . and from the ST terminal to the STSW terminal (STSW signal) of the engine control computer. CIRCUIT DIAGRAM ES Engine Control Computer F/P Relay E/G 35 * FC1 M Fuel Pump Ignition Switch EFI Relay 39 AM2 EFI MRO From Starter Circuit STSW MAIN N1+ From Crankshaft Sensor N1- Battery * : FAN 2 For Europe A138423J01 . current flows from the ST terminal of the ignition switch to the starter relay coil. the fuel pump continues to operate because the transistor switch inside the engine control computer remains ON (F/P relay ON). K3-VE) ES–115 FUEL PUMP CONTROL SYSTEM DESCRIPTION While the engine cranks. When the STSW signal and N1 signal are input to the engine control computer.EFI SYSTEM (3SZ-VE. current flows to the fuel pump relay coil via an internal transistor. Turn the ignition switch to the ON position. Standard Terminals 1←→2 3←→5 Continuity Continuity No continuity (2) A133875 Using a tester. and perform the active test with the engine stopped. Standard: Fuel pump operates.EFI SYSTEM (3SZ-VE. inspect the resistance between the terminals. REPAIR OR REPLACE ECU POWER SOURCE SYSTEM OK 3 CHECK FUEL PUMP RELAY (a) Check for continuity.ES–116 ENGINE CONTROL . Standard: Continuity NG OK REPLACE FUEL PUMP RELAY . (1) Using a tester. K3-VE) INSPECTION PROCEDURE 1 PERFORM DS-II ACTIVE TEST (FUEL PUMP) (a) (b) Following the prompts on the DS-II screen. make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between terminals 1 and 2. ES OK NG GO TO STEP 7 2 CHECK ECU POWER SUPPLY SYSTEM NG CHECK. select the active test mode . check for the continuity and short between the engine control computer and the relay block holder for the fuel pump relay. K3-VE) ES–117 4 CHECK EFI RELAY (a) Check for continuity. Remove F/P relay. make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between terminals 1 and 2.ENGINE CONTROL . EFI relay). .) Standard: Tester Connection (Terminal Symbol) Engine control computer ←→ Relay block holder for F/P relay 35 (FC1*) ←→ 3 terminal FC (FAN 2 For Europe) Standard Continuity and no short between other terminals and body ground *: FAN2 for European spec. see page ES . Using a tester. Using a tester.EFI SYSTEM (3SZ-VE. Standard: Continuity ES NG OK REPLACE EFI RELAY 5 CHECK WIRE HARNESS AND CONNECTOR (ENGINE CONTROL COMPUTER F/P RELAY) (a) (b) (c) Engine Control Computer Disconnect the engine control computer connector D. (For terminal layout. E/G fuse and relay (fuel pump relay. when inspecting by applying the tester probe to the holder. NOTICE: Be careful not to damage the holder part by pressing it too hard. Standard Terminals 1←→2 3←→5 Continuity Continuity No continuity (2) A133875 Using a tester.16. NG 2 5 3 1 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133876J02 OK 6 CHECK WIRING HARNESS OR CONNECTOR (a) (b) Remove EFI fuse. inspect the resistance between the terminals. (1) Using a tester. check for the continuity and short between terminals of each socket. when inspecting by applying the tester probe to the holder. NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK CHECK AND REPLACE ENGINE CONTROL COMPUTER 7 CHECK FUEL PUMP (a) CHECK RESISTANCE (1) Using a tester. measure the resistance between terminal 3 (+) and 4 (-) of the fuel pump connector. K3-VE) Standard: Tester Connection (Terminal Symbol) F/P relay 2 terminal ←→ EFI relay 4 terminal F/P relay 1 terminal ←→ E/G fuse 2 terminal EFI relay 2 terminal ←→ EFI fuse 2 terminal EFI relay 1 terminal ←→ EFI fuse 2 terminal Standard Continuity and no short between other terminals and body ground Continuity and no short between other terminals and body ground Continuity and no short between other terminals and body ground Continuity and no short between other terminals and body ground ES NOTICE: Be careful not to damage the holder part by pressing it too hard.0 Ω (20 °C) CHECK OPERATION (1) Apply the battery voltage between terminal 3 (+) and 4 (-) of the fuel pump connector.ES–118 ENGINE CONTROL .2 to 3. E 2 1 4 3 (b) A134990 NG OK REPLACE FUEL PUMP 8 CHECK WIRE HARNESS OR CONNECTOR (BETWEEN EFI CIRCUIT OPENNING RELAY AND FUEL PUMP) (a) (b) Disconnect the connector of fuel pump. and check the motor rotates. • Make sure to perform the switching on the battery terminal side. .EFI SYSTEM (3SZ-VE. Remove F/P relay. Reference Value: 0. NOTICE: • Perform the check for a very short time (less than 10 seconds) • Keep the pump as far away from the battery as possible. and between fuel pump and body ground.EFI SYSTEM (3SZ-VE. Standard Standard There is continuity and no short between the other terminals and body ground E 1 2 3 4 3←→3(+) Tester Connection Relay Block Holder For EFI Relay ←→ Fuel Pump Tester Connection Fuel Pump ←→ Body Ground 4 (-) ←→ Body ground Standard Continuity ES 2 5 3 1 NOTICE: When applying the tester probe to the holder during inspection. check for the continuity and short between relay block holder for F/P relay and fuel pump. NG A138316J01 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK GO TO RELEVANT CIRCUIT INSPECTION SPECIFIED IN PROBLEM SYMPTOMS TABLE . be careful not to damage the holder part by pressing it too hard.ENGINE CONTROL . K3-VE) ES–119 (c) Fuel Pump Relay Vehicle Side Connector Using a tester. K3-VE) ECU POWER SOURCE SYSTEM DESCRIPTION When the ignition switch is ON. (a) . causing the EFI relay connection to close. current from the battery flows to the EFI relay coil. CIRCUIT DIAGRAM Engine Control Computer E/G 120 ES IGSW Ignition Switch EFI Relay 27 39 AM2 EFI +B MRO MAIN 125 E1 Battery A138424 INSPECTION PROCEDURE 1 CHECK ENGINE CONTROL COMPUTER (CHECK VOLTAGE) SST 09842-97209 Connect the SST (sub harness.ES–120 ENGINE CONTROL . EFI computer check) to the engine control computer.EFI SYSTEM (3SZ-VE. Power is then supplied to the +B terminal of the engine control computer. (For terminal layout.) Standard Tester Connection (Terminal Symbol) 27 (+B) ←→ 125 (E1) Standard 10 to 14V +B E1 A133549J09 OK CHECK AND REPLACE ENGINE CONTROL COMPUTER NG ES CHECK WIRE HARNESS OR CONNECTOR (ECU GROUND) (a) (b) (c) Disconnect the negative battery terminal. see page ES 16.16.(For terminal layout. K3-VE) ES–121 (b) (c) Engine Control Computer Turn the ignition switch to the ON position. Measure the voltage between the engine control computer and the body ground using the tester. (c) Measure the voltage between the terminals of the engine control computer connector using a tester. Measure the voltage between the terminals of the engine control computer connector using a tester. (b) Turn the ignition switch to the ON position.ENGINE CONTROL . see page ES . EFI computer check) to the engine control computer. (For terminal layout.16. see page ES . Disconnect connector B of the engine control computer.) 2 Engine Control Computer Standard Tester Connection (Terminal Symbol) 125 (E1) ←→ Body ground E1 A133911J01 Standard Continuity NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK 3 CHECK ENGINE CONTROL COMPUTER (CHECK VOLTAGE) SST 09842-97209 Connect the SST (sub harness.EFI SYSTEM (3SZ-VE.) (a) Engine Control Computer Standard Tester Connection (Terminal Symbol) 120 (IGSW) ←→ 125 (E1) E1 IGSW A133549J10 Standard 9 to 14 V OK GO TO STEP 7 NG . Standard: Continuity NG E/G Fuse CHECK ALL WIRE HARNESSES DEVICES CONNECTED TO IGN FUSE AND ES A133912J01 OK 5 INSPECT FUSE (AM2) (a) Engine Room R/B Remove the AM2 fuse.EFI SYSTEM (3SZ-VE. Standard: Continuity NG CHECK ALL WIRE HARNESSES DEVICES CONNECTED TO AM2 FUSE AND AM2 Fuse A134899J01 OK .ES–122 ENGINE CONTROL . and check for continuity using a tester. K3-VE) 4 INSPECT FUSE (E/G) (a) Remove the E/G fuse. and check for continuity using a tester. (For terminal layout.EFI SYSTEM (3SZ-VE. (1) Using the tester. Terminal 1 ←→ Terminal 3 Terminal 1 ←→ terminal 2 ←→ terminal 3. Standard Switch LOCK ACC ON Terminal No. see page ES . terminal 5 ←→ terminal 6 Terminal 1 ←→ terminal 2.16. (b) Turn the ignition switch to the ON position. K3-VE) ES–123 6 INSPECTION OF IGNITION (STARTER) SWITCH ASSEMBLY (a) Check for continuity. check the continuity between each of the connecter terminals. terminal 4 ←→ terminal 5 ←→ terminal 6 Standard No continuity Continuity Continuity ES START Continuity NG REPLACE IGNITION (STARTER) SWITCH ASSEMBLY B059612 OK REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 7 CHECK ENGINE CONTROL COMPUTER (CHECK VOLTAGE) SST 09842-97209 Connect the SST (sub harness.) (a) Engine Control Computer Standard Tester Connection (Terminal Symbol) 39 (MRO) ←→ 125 (E1) E1 MRO A133549J13 Standard 9 to 14 V NG CHECK AND REPLACE ENGINE CONTROL COMPUTER OK .ENGINE CONTROL . EFI computer check) to the engine control computer. (c) Measure the voltage between the terminals of the engine control computer connector using a tester. ES–124 ENGINE CONTROL - EFI SYSTEM (3SZ-VE, K3-VE) 8 INSPECT FUSE (EFI) (a) Remove the EFI fuse from the engine room R/B, and check for continuity using a tester. Standard: Continuity Engine Room R/B NG CHECK ALL WIRE HARNESSES DEVICES CONNECTED TO EFI FUSE AND ES OK EFI Fuse A133909J01 9 CHECK EFI COMPUTER RELAY (a) Check for continuity. (1) Using a tester, inspect the resistance between the terminals. Standard Terminals 1←→2 3←→5 Continuity Continuity No continuity (2) A133875 Using a tester, make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between terminals 1 and 2. Standard: Continuity NG OK REPLACE EFI COMPUTER RELAY 10 CHECK WIRE HARNESS OR CONNECTOR (BETWEEN MRO AND GROUND) (a) (b) (c) Disconnect the negative battery terminal. Disconnect connector C of the engine control computer. Measure the continuity between the engine control computer terminal and the body ground using the tester. (For terminal layout, see page ES - 16.) Engine Control Computer Standard Tester Connection (Terminal Symbol) 39 (MRO) ←→ Body ground MRO A133913J01 Standard Continuity NG REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR OK CHECK FOR INTERMITTENT PROBLEMS ENGINE CONTROL - THROTTLE BODY ASSEMBLY (3SZ-VE) ES–125 THROTTLE BODY ASSEMBLY (3SZ-VE) ENGINE CONTROL COMPONENTS ACCELERATOR CONTROL T=3.5{36} BATTERY CLAMP CABLE ASSEMBLY BATTERY ES T=8.5{87} ×3 BATTERY CARRIER ENGINE UNDER COVER ×11 T=5.4{55} TIGHTENING TORQUE [N*m{kgf*cm}] A137009J01 ES–126 ENGINE CONTROL - THROTTLE BODY ASSEMBLY (3SZ-VE) AIR CLEANER ASSEMBLY ES T=7.5{76} COOLANT BYPASS HOSE NO. 2 ×2 O-RING COOLANT BYPASS HOSE T=18{184} T=7.5{76} T=7.5{76} T=21{214} ×2 AIR CLEANER HOSE NO. 1 THROTTLE BODY ASSEMBLY O-RING ×2 T=7.5{76} VENTILATION HOSE NO. 2 THROTTLE BODY BRACKET NO. 2 TIGHTENING TORQUE [N*m{kgf*cm}] NON-REUSEABLE PART A137008J02 ISC Connector REMOVE THROTTLE BODY ASSEMBLY (a) Disconnect the connector of the throttle body assembly and the wire harness clamps. DISCONNECT WATER BY-PASS HOSE NO. 4. Blue Paint A131806 Red Paint 9.ENGINE CONTROL .1 (See page CO-15) REMOVE AIR CLEANER ASSEMBLY (See page EM-146) DISCONNECT ACCELERATOR CONTROL CABLE (See page EM-147) ASSEMBLY 2.THROTTLE BODY ASSEMBLY (3SZ-VE) ES–127 REMOVAL 1. REMOVE VENTILATION HOSE NO. ES 7.2 (a) Disengage the clamps and disconnect water by-pass hose No. 6. A134985 10. 5.2 (See page EM-147) DISCONNECT WATER BY-PASS HOSE (a) Disengage the clamps and disconnect the water by-pass hose.) REMOVE ENGINE UNDER COVER DRAIN ENGINE COOLANT (See page CO-9) REMOVE AIR CLEANER HOSE NO. DISCONNECT NEGATIVE BATTERY TERMINAL (See page RS-164. 8. Throttle Sensor Connector A136086 .2. 3. Remove the O-rings. Torque: 21 N*m (214 kgf*cm) Throttle body bracket side 7. Torque: 7.5 N*m (76 kgf*cm) A131805 (d) Connect the connectors to the throttle body assembly. (b) Install the throttle body assembly with the 3 bolts.2. CONNECT WATER BY-PASS HOSE (a) Connect the water by-pass hose and install the clamp. A131805 ES INSTALLATION 1.ES–128 ENGINE CONTROL . ISC Connector Throttle Sensor Connector A136086 Red Paint 2.THROTTLE BODY ASSEMBLY (3SZ-VE) (b) (c) (d) Remove the 2 bolts and throttle body bracket No.2 with the 2 bolts. INSTALL THROTTLE BODY ASSEMBLY (a) Install a new O-ring. Remove the 3 bolts and the throttle body assembly. A134985 .5 N*m (77 kgf*cm) Intake manifold side (c) Install throttle body bracket No. 10.2 (a) Connect water by-pass hose No. 11. ES 12.4 N*m (55 kgf*cm) PERFORM INTIALIZATION (See page SS-10.ENGINE CONTROL . (d) Check that there is no clearance between the throttle stop screw and the lever when the throttle valve is fully open.2 and install the clamp.2 (See page EM-166) INSTALL ACCELERATOR CONTROL CABLE ASSEMBLY (See page EM-165) INSTALL AIR CLEANER ASSEMBLY (See page EM-167) INSTALL AIR CLEANER HOSE NO.THROTTLE BODY ASSEMBLY (3SZ-VE) ES–129 3. (c) Check that the throttle valve can open and close smoothly. INSTALL VENTILATION HOSE NO. Blue Paint 4. CONNECT WATER BY-PASS HOSE NO. . (b) Check that none of the ports is clogged.1 (See page CO-19) ADD COOLANT (See page CO-9) CHECK FOR COOLANT LEAKS (See page CO-10) INSTALL ENGINE UNDER COVER (See page EM-69) CONNECT NEGATIVE BATTERY TERMINAL Torque: 5. A131806 8.) 6. INSPECTION 1. 7. INSPECT THROTTLE BODY ASSEMBLY (a) Check that the throttle shaft is not loose. 5. 9. 4{55} TIGHTENING TORQUE [N*m{kgf*cm}] A137009J01 .5{36} BATTERY CLAMP CABLE ASSEMBLY BATTERY ES T=8.ES–130 ENGINE CONTROL ENGINE CONTROL .KNOCK CONTROL SENSOR (3SZ-VE) KNOCK CONTROL SENSOR (3SZ-VE) COMPONENTS ACCELERATOR CONTROL T=3.5{87} ×3 BATTERY CARRIER ENGINE UNDER COVER ×11 T=5. KNOCK CONTROL SENSOR (3SZ-VE) ES–131 AIR CLEANER ASSEMBLY T=7.5{76} COOLANT PIPE HOSE NO. 2 T=21{214} ×2 VENTILATION HOSE NO. 1 T=21{214} ×2 T=7. 1 VENTILATION HOSE O-RING TIGHTENING TORQUE [N*m{kgf*cm}] NON-REUSEABLE PART A137017J01 . 2 VACUUM HOSE ASSEMBLY OIL LEVEL GAUGE GUIDE INTAKE MANIFOLD TO INTAKE MANIFOLD T=8.5{76} T=18{184} T=7.5{76} ×2 THROTTLE BODY GASKET O-RING T=19{194} ×2 T=19{194} ×3 THROTTLE BODY GASKET NO. 2 ×2 O-RING T=7.5{87} HEAD GASKET NO.5{76} ES ×2 COOLANT PIPE HOSE AIR CLEANER HOSE NO.ENGINE CONTROL . KNOCK CONTROL SENSOR (3SZ-VE) FUEL DELIVERY PIPE T=21{214} ES FUEL HOSE NO. 1 ×2 ×4 ×4 O-RING ×4 INJECTOR VIBRATION INSULATOR FUEL INJECTOR ASSEMBLY T=20{204} KNOCK CONTROL SENSOR TIGHTENING TORQUE [N*m{kgf*cm}] NON-REUSEABLE PART A137018J01 .ES–132 ENGINE CONTROL . ENGINE CONTROL - KNOCK CONTROL SENSOR (3SZ-VE) ES–133 REMOVAL 1. DISCONNECT NEGATIVE BATTERY TERMINAL (See Page RS-164) DRAIN ENGINE COOLANT (See page CO-9) DISCHARGE FUEL SYSTEM PRESSURE (See page EM-146) REMOVE BATTERY REMOVE BATTERY CARRIER (See page EM-146) REMOVE ENGINE UNDER COVER REMOVE AIR CLEANER HOSE NO.1 (See page CO-15) REMOVE AIR CLEANER ASSEMBLY (See page EM-146) DISCONNECT ACCELERATOR CONTROL CABLE (See page EM-147) REMOVE VENTILATION HOSE (See page EM-147) REMOVE VENTILATION HOSE NO.2 (See page EM-147) DISCONNECT FUEL HOSE NO.1 (See page FU-10) REMOVE FUEL DELIVERY PIPE (See page FU-10) DISCONNECT WATER BY-PASS HOSE NO.2 (See page ES-127) DISCONNECT WATER BY-PASS HOSE (See page ES-127) REMOVE THROTTLE BODY ASSEMBLY (See page ES-127) REMOVE THROTTLE BODY BRACKET (See page EM-149) REMOVE OIL LEVEL GAUGE GUIDE (See page EM-148) DISCONNECT VACUUM HOSE ASSEMBLY REMOVE INTAKE MANIFOLD (See page EM-149) REMOVE KNOCK CONTROL SENSOR (a) Disconnect the connector. (b) Remove the nut, then remove the knock control sensor. ASSEMBLY 2. 3. 4. 5. 6. 7. 8. 9. ES 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. A107018 ES–134 ENGINE CONTROL - KNOCK CONTROL SENSOR (3SZ-VE) INSTALLATION 1. INSTALL KNOCK CONTROL SENSOR (a) Install the knock control sensor with the nut in the direction shown in the illustration. Torque: 20 N*m (204 kgf*cm) (b) Connect the connector. INSTALL INTAKE MANIFOLD (See page EM-164) INSTALL THROTTLE BODY ASSEMBLY (See page EM-164) INSTALL FUEL INJECTOR ASSEMBLY (See page FU-11) INSTALL FUEL DELIVERY PIPE (See page FU-11) INSTALL OIL LEVEL GAUGE GUIDE (See page EM-58) CONNECT FUEL HOSE NO.1 (See page FU-12) CONNECT ACCELERATOR CONTROL CABLE ASSEMBLY (See page EM-165) INSTALL VENTILATION HOSE (See page EM-166) INSTALL VENTILATION HOSE NO.2 (See page EM-166) INSTALL BATTERY CARRIER (See page EM-167) INSTALL BATTERY CONNECT NEGATIVE BATTERY TERMINAL (See page EM-167) INSTALL AIR CLEANER ASSEMBLY (See page EM-167) INSTALL AIR CLEANER HOSE NO.1 (See page CO-19) ADD COOLANT (See page CO-9) CHECK FOR COOLANT LEAKS (See page CO-10) CHECK COOLANT (See page CO-10) PERFORM INITIALIZATION (See page SS-10.) 45° 15° 2. 3. ES 15° A107019J01 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. INSPECTION 1. CHECK KNOCK CONTROL SENSOR (a) Check the resistance. (1) Using a tester, measure the resistance between the connector terminals. Standard: 120 to 280 Ω A065174J01 ENGINE CONTROL - CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (3SZ-VE) ENGINE CONTROL ES–135 CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (3SZ-VE) COMPONENTS ES CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY O-RING T=7.5{76} ES–136 ENGINE CONTROL . then remove the camshaft timing oil control valve assembly. Standard Item Inactive (OCV OFF) Active (OCV ON) Standard Normal engine speed Rough idle or engine stop . then VVT CONTROL and check the idling speed in both the INACTIVE or ACTIVE modes.5 N*m (76 kgf*cm) Connect the connector. (c) Following the prompts on the screen. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Disconnect the connector. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Apply engine oil to a new O-ring. (b) Warm up the engine. Torque: 7. select ACTIVE TEST. (b) Install the camshaft timing oil control valve assembly with the bolt. CHECK CAMSHAFT OIL CONTROL VALVE ASSEMBLY OPERATION (a) Connect the DS-II to the DLC. (c) A136191 ON-VEHICLE INSPECTION 1. (b) Remove the bolt.CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (3SZ-VE) REMOVAL 1. ES A136191 INSTALLATION 1. the pressure may leak slightly toward the advanced side. NOTICE: Make sure the spool valve is not stuck.9 to 7. CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Check the resistance. This leakage may cause DTCs to be recorded.ENGINE CONTROL . select ACTIVE TEST. ES 6. Standard Item When normal Max retard angle (-100%) Standard Normal engine speed Rough idle or engine stop INSPECTION 1.9 Ω (when 20°C) Side Side Current Applied Current Not Applied Valve A136208 . (1) Apply battery voltage across the terminals. (1) Using a tester. Standard: (b) Check operation. then check that the spool valve operates. HINT: If the spool valve does not return due to foreign matter like sludge. then VVT LINEAR DRIVE BANK 1 and check the idling speed at the max retard angle (-100%).CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (3SZ-VE) ES–137 (d) Following the prompts on the screen. measure the resistance between the terminals. 1 ENGINE CONTROL COMPUTER ASSEMBLY ENGINE CONTROL COMPUTER BRACKET NO. 2 FRONT DOOR SCUFF PLATE LH A137037J01 .ENGINE CONTROL COMPUTER (3SZ-VE) ENGINE CONTROL COMPUTER (3SZ-VE) COMPONENTS ES GLOVE COMPARTMENT DOOR ASSEMBLY ENGINE CONTROL COMPUTER BRACKET NO.ES–138 ENGINE CONTROL ENGINE CONTROL . 2 COWL SIDE TRIM BOARD LH INSTRUMENT PANEL UNDER COVER NO. (b) Connect each connector. 6.2 from the engine control computer. (b) Remove the 2 bolts and the engine control computer. 4.1 to the engine control computer INSTALL ENGINE CONTROL COMPUTER (a) Install the engine control computer with the 2 bolts. 3.1 from the engine control computer.2 ( See page IP-12) REMOVE FRONT DOOR SCUFF PLATE LH REMOVE COWL SIDE TRIM BOARD LH REMOVE ENGINE CONTROL COMPUTER (a) Remove each connector.4 N*m (55 kgf*cm) PERFORM INITIALIZATION (See page SS-10. 8.ENGINE CONTROL COMPUTER (3SZ-VE) ES–139 REMOVAL 1. 5. . INSTALL ENGINE CONTROL COMPUTER BRACKET NO. NOTICE: Be careful not to drop the engine control computer. INSTALL COWL SIDE TRIM BOARD LH INSTALL FRONT DOOR SCUFF PLATE LH INSTALL INSTRUMENT PANEL UNDER COVER NO.2 ( See page IP-17) INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY ( See page IP-18) CONNECT NEGATIVE BATTERY TERMINAL Torque: 5. ES 7. INSTALLATION 1. REMOVE ENGINE CONTROL COMPUTER BRACKET NO. 5. 4. REMOVE ENGINE CONTROL COMPUTER BRACKET NO.1 (a) Install engine control computer bracket No.1 (a) Disengage the claw and remove engine control computer bracket No.2 to the engine control computer. 7.2 (a) Disengage the claw and remove engine control computer bracket No. INSTALL ENGINE CONTROL COMPUTER BRACKET NO. 6. 9. 2.ENGINE CONTROL . 8.2 (a) Install engine control computer bracket No. DISCONNECT NEGATIVE BATTERY TERMINAL (See page RS-164.) 2.) REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY ( See page IP-11) INSTALL INSTRUMENT PANEL UNDER COVER NO. 3. I.59 kΩ 0.I. Standard Measurement Condition Standard 2.326 kΩ ES When approx. 20°C When approx.Wipe the sensor dry after the check.310 to 0.E. (1) Using a tester. 80°C Resistance [kΩ] NOTICE: Make sure that the terminal area does not get wet when applying the sensor to water during inspection. CHECK EFI COOLANT TEMPERATURE (a) Check the resistance.F. measure the resistance between the terminals. Temperature [°C] A050330J09 . WATER TEMPERATURE (3SZ-VE) E.32 to 2.ES–140 ENGINE CONTROL ENGINE CONTROL .F. WATER TEMPERATURE (3SZ-VE) INSPECTION 1. E. COMPUTER RELAY (3SZ-VE) ENGINE CONTROL INSPECTION 1.I. check the continuity between the terminals of the connector.I.F. (1) Using the SST (electrical tester). COMPUTER RELAY (3SZ-VE) ES–141 E.ENGINE CONTROL . EFI COMPUTER RELAY (a) Check for continuity. Standard Terminals 1←→2 3←→5 Continuity Continuity No continuity ES (2) A133875 Using a tester. make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between terminals 1 and 2.F. Standard: Continuity . ES–142 ENGINE CONTROL ENGINE CONTROL .5 to 5.9 kΩ 0.2 kΩ Throttle Position Sensor ES VTH Tester Connection (Terminal Symbol) 3 2 1 VC 1 (VC) ←→ 3 (VTH) 3 (VTH) ←→ 2 (E2) 3 (VTH) ←→ 2 (E2) E2 A133573J01 TO INDEX TO NEXT SECTION .0 to 10.2 to 5.7 kΩ 2.THROTTLE POSITION SENSOR (3SZ-VE) THROTTLE POSITION SENSOR (3SZ-VE) INSPECTION 1. measure the resistance between the throttle position sensor connector terminals. Standard Throttle Valve Fully Closed Fully open Resistance 2. CHECK RESISTANCE (a) Disconnect the throttle position sensor connector. (b) Using a tester.