Engine Control System: Wiring Nissan Titan I

WIRING DIAGRAM

For complete wiring diagrams, see ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS - TITAN article.

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1. ECM is located in the engine room passenger side behind battery.
2. Remove ECM harness connector.
3. When disconnecting ECM harness connector, loosen it with levers as far as they will go as shown in the figure.
4. Connect a break-out box (SST) and Y-cable adapter (SST) between the ECM and ECM harness connector. Use extreme care not to touch 2 pins at one time. Data is for comparison and may not be exact.

Note. For references to PG-POWER, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 363

Specification data are reference values and are measured between each terminal and ground.

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1. INSPECTION START Start engine. Is engine running? Yes or No Yes: GO TO 8. No: GO TO 2.
2. CHECK ECM POWER SUPPLY CIRCUIT-I Turn ignition switch OFF and then ON. Check voltage between ECM terminal 109 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 4. NG: GO TO 3.
3. DETECT MALFUNCTIONING PART Check the following. 10A fuse Harness for open or short between ECM and fuse Repair harness or connectors.
4. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 5. NG: Repair or replace ground connections.
5. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I Disconnect ECM harness connector. Check harness continuity between ECM terminals 1, 115, 116 and body ground. Refer to «WIRING DIAGRAM»(ref-169472-S22253773802004120900000) . Continuity should exist. Also check harness for short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors F32, E2 Harness for open or short between ECM and body ground Repair open circuit or short to power in harness or connectors.
7. CHECK ECM POWER SUPPLY CIRCUIT-II Reconnect ECM harness connector. Turn ignition switch ON. Check voltage between IPDM E/R terminal 4 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: Go to «IGNITION SIGNAL»(ref-169809-S09326610482004121600000) in SYSTEM & COMPONENT TESTING - TITAN article. NG: GO TO 8.
8. CHECK ECM POWER SUPPLY CIRCUIT-III Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON and then OFF. Check voltage between ECM terminals 119, 120 and ground with CONSULT-II or tester. Voltage: After turning ignition switch OFF, battery voltage will exist for a few seconds, then drop approximately 0V. OK or NG OK: GO TO 16. NG (Battery voltage does not exist.): GO TO 9. NG (Battery voltage exists for more than a few seconds.): GO TO 16.
9. CHECK ECM POWER SUPPLY CIRCUIT-V Turn ignition switch OFF and wait at least 10 seconds. Check voltage between ECM terminal 111 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 10. NG: GO TO 11.
10. CHECK ECM POWER SUPPLY CIRCUIT-VI Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E119. Check harness continuity between ECM terminals 119, 120 and IPDM E/R terminal 3. Refer to «WIRING DIAGRAM»(ref-169472-S22253773802004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 13. NG: Repair open circuit or short to ground or short to power in harness or connectors.
11. CHECK ECM POWER SUPPLY CIRCUIT-VII Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E119. Check harness continuity between ECM terminal 111 and IPDM E/R terminal 7. Refer to «WIRING DIAGRAM»(ref-169472-S22253773802004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 12. NG: Repair open circuit or short to ground or short to power in harness or connectors.
12. CHECK 15A FUSE Disconnect 20A fuse from IPDM E/R. Check 20A fuse. OK or NG OK: GO TO 16. NG: Replace 20A fuse.
13. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 14. NG: Repair or replace ground connections.
14. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II Disconnect ECM harness connector. Check harness continuity between ECM terminals 1, 115, 116 and ground. Refer to «WIRING DIAGRAM»(ref-169472-S22253773802004120900000) . Continuity should exist. Also check harness for short to power. OK or NG OK: GO TO 16. NG: GO TO 15.
15. DETECT MALFUNCTIONING PART Check the following. Harness connectors F32, E2 Harness for open or short between ECM and ground Repair open circuit or short to power in harness or connectors.
16. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: Replace IPDM E/R. NG: Repair open circuit or short to power in harness or connectors.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 371

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 372

Specification data are reference values and are measured between each terminal and ground.

Scheme 373

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 374

Specification data are reference values and are measured between each terminal and ground.

Scheme 375

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Scheme 378

1. INSPECTION START Which malfunction (A or B) is duplicated? A or B A: GO TO 3. B: GO TO 2.
2. CHECK INTAKE SYSTEM Check the following for connection. Air duct Vacuum hoses Intake air passage between air duct to intake manifold OK or NG OK: GO TO 3. NG: Reconnect the parts.
3. RETIGHTEN GROUND SCREWS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 4. NG: Repair or replace ground connections.
4. CHECK MAF SENSOR POWER SUPPLY CIRCUIT Disconnect mass air flow (MAF) sensor harness connector. Turn ignition switch ON. Check voltage between MAF sensor terminal 2 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 6. NG: GO TO 5.
5. DETECT MALFUNCTIONING PART Check the following. Harness connectors E19, F33 Harness for open or short between IPDM E/R and mass air flow sensor Harness for open or short between mass air flow sensor and ECM Repair harness or connectors.
6. CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between MAF sensor terminal 3 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S12471578762004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between MAF sensor terminal 4 and ECM terminal 51. Refer to «WIRING DIAGRAM»(ref-169472-S12471578762004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK MASS AIR FLOW SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34688491882004120900000) . OK or NG OK: GO TO 9. NG: Replace mass air flow sensor.
9. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

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Scheme 380

1. Reconnect all harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 51 (Mass air flow sensor signal) and ground.
4. If the voltage is out of specification, proceed the following. Turn ignition switch OFF. Disconnect mass air flow sensor harness connector and reconnect it again. Perform steps 2 and 3 again.
5. If NG, remove mass air flow sensor from air duct. Check hot wire for damage or dust.
6. If NG, clean or replace mass air flow sensor.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 381

Specification data are reference values and are measured between each terminal and ground.

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1. INSPECTION START Which malfunction (P0102 or P0103) is duplicated? P0102 or P0103 P0102: GO TO 2. P0103: GO TO 3.
2. CHECK INTAKE SYSTEM Check the following for connection. Air duct Vacuum hoses Intake air passage between air duct to intake manifold OK or NG OK: GO TO 3. NG: Reconnect the parts.
3. RETIGHTEN GROUND SCREWS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 4. NG: Repair or replace ground connections.
4. CHECK MAF SENSOR POWER SUPPLY CIRCUIT Disconnect mass air flow (MAF) sensor harness connector. Turn ignition switch ON. Check voltage between MAF sensor terminal 2 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 6. NG: GO TO 5.
5. DETECT MALFUNCTIONING PART Check the following. Harness connectors E19, F33 Harness for open or short between IPDM E/R and mass air flow sensor Harness for open or short between mass air flow sensor and ECM Repair harness or connectors.
6. CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between MAF sensor terminal 3 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S07773036112004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between MAF sensor terminal 4 and ECM terminal 51. Refer to «WIRING DIAGRAM»(ref-169472-S07773036112004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK MASS AIR FLOW SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S03735994452004120900000) . OK or NG OK: GO TO 9. NG: Replace mass air flow sensor.
9. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

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Scheme 387

1. Reconnect all harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 51 (Mass air flow sensor signal) and ground.
4. If the voltage is out of specification, proceed the following. Turn ignition switch OFF. Disconnect mass air flow sensor harness connector and reconnect it again. Perform steps 2 and 3 again.
5. If NG, remove mass air flow sensor from air duct. Check hot wire for damage or dust.
6. If NG, clean or replace mass air flow sensor.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

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Scheme 391

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT Disconnect mass air flow sensor (intake air temperature sensor is built-into) harness connector. Turn ignition switch ON. Check voltage between mass air flow sensor terminal 5 and ground. Voltage: Approximately 5V OK or NG OK: GO TO 3. NG: Repair harness or connectors.
3. CHECK INTAKE AIR TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between mass air flow sensor terminal 6 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S08421893932004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK INTAKE AIR TEMPERATURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S13708368142004120900000) . OK or NG OK: GO TO 5. NG: Replace mass air flow sensor (with intake air temperature sensor).
5. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 392

1. Check resistance between mass air flow sensor terminals 5 and 6 under the following conditions.
2. If NG, replace mass air flow sensor (with intake air temperature sensor).

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For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

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1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK ECT SENSOR POWER SUPPLY CIRCUIT Disconnect engine coolant temperature (ECT) sensor harness connector. Turn ignition switch ON. Check voltage between ECT sensor terminal 1 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 4. NG: GO TO 3.
3. DETECT MALFUNCTIONING PART Check the following. Harness connector F26, F101 Harness for open or short between ECM and engine coolant temperature sensor Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK ECT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECT sensor terminal 2 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S33806298582004120900000) . Continuity should exist. Also check harness for short to ground or short to power. OK or NG OK: GO TO 6. NG: GO TO 5.
5. DETECT MALFUNCTIONING PART Check the following. Harness connector F26, F101 Harness for open and short between ECT sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK ENGINE COOLANT TEMPERATURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S07980097282004120900000) OK or NG OK: GO TO 7. NG: Replace engine coolant temperature sensor.
7. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

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1. Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.
2. If NG, replace engine coolant temperature sensor.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 402

Specification data are reference values and are measured between each terminal and ground.

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1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-I Disconnect electric throttle control actuator harness connector. Turn ignition switch ON. Check voltage between electric throttle control actuator terminal 2 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 7. NG: GO TO 3.
3. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 2 and ECM terminal 47. Refer to «WIRING DIAGRAM»(ref-169472-S25523214572004120900000) . Continuity should exist. OK or NG OK: GO TO 4. NG: Repair or replace open circuit.
4. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II Check the following. Harness for short to power and short to ground, between the following terminals. OK or NG OK: GO TO 5. NG: Repair short to ground or short to power in harness or connectors.
5. CHECK ACCELERATOR PEDAL POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34953777782004120900000) . OK or NG OK: GO TO 11. NG: GO TO 6.
6. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
7. CHECK THROTTLE POSITION SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 66. Refer to «WIRING DIAGRAM»(ref-169472-S25523214572004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK THROTTLE POSITION SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 69 and electric throttle control actuator terminal 3. Refer to «WIRING DIAGRAM»(ref-169472-S25523214572004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK THROTTLE POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S21293950392004120900000) . OK or NG OK: GO TO 11. NG: GO TO 10.
10. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
11. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 408

Scheme 409

1. Reconnect all harness connectors disconnected.
2. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
3. Turn ignition switch ON
4. Set selector lever to D position.
5. Check voltage between ECM terminals 50 (TP sensor 1 signal), 69 (TP sensor 2 signal) and ground under the following conditions.
6. If NG, replace electric throttle control actuator and go to the next step.
7. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
8. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

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1. CHECK DTC WITH COMBINATION METER Refer to «COMBINATION METERS»(ref-170082-S30950297692005010600000) in GAUGES & INSTRUMENT PANEL - TITAN article in ACCESSORIES & BODY, CAB. . OK or NG OK: GO TO 2. NG: Go to «FUEL LEVEL SENSOR UNIT INSPECTION»(ref-170082-S00092696412005010600000) in GAUGES & INSTRUMENT PANEL - TITAN article in ACCESSORIES & BODY, CAB.
2. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 3. NG: Repair or replace ground connections.
3. CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT Disconnect "fuel level sensor unit and fuel pump" harness connector. Turn ignition switch ON. Check voltage between "fuel level sensor unit and fuel pump" terminal 4 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness for open or short between ECM and "fuel level sensor unit and fuel pump" Repair harness or connector.
5. CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect combination meter harness connector. Check harness continuity between "fuel level sensor unit and fuel pump" terminal 5 and combination meter terminal 16. Refer to «WIRING DIAGRAM»(ref-169472-S42458414302004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E152, M31 Harness for open or short between "fuel level sensor unit and fuel pump" and combination meter Repair open circuit or short to ground or short to power in harness or connector.
7. CHECK FUEL TANK TEMPERATURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S33626149702004120900000) . OK or NG OK: GO TO 8. NG: Replace fuel level sensor unit.
8. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 414

Scheme 415

1. Remove fuel level sensor unit.
2. Check resistance between "fuel level sensor unit and fuel pump" terminals 4 and 5 by heating with hot water or heat gun as shown in the figure.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

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Scheme 419

1. CHECK DTC WITH COMBINATION METER Refer to «COMBINATION METERS»(ref-170082-S30950297692005010600000) in GAUGES & INSTRUMENT PANEL - TITAN article in ACCESSORIES & BODY, CAB. . OK or NG OK: GO TO 2. NG: Go to «FUEL LEVEL SENSOR UNIT INSPECTION»(ref-170082-S00092696412005010600000) in GAUGES & INSTRUMENT PANEL - TITAN article in ACCESSORIES & BODY, CAB. .
2. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 3. NG: Repair or replace ground connections.
3. CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT Disconnect "fuel level sensor unit and fuel pump" harness connector. Turn ignition switch ON. Check voltage between "fuel level sensor unit and fuel pump" terminal 4 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness for open or short between ECM and "fuel level sensor unit and fuel pump" Repair harness or connector.
5. CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect combination meter harness connector. Check harness continuity between "fuel level sensor unit and fuel pump" terminal 5 and combination meter terminal 16. Refer to «WIRING DIAGRAM»(ref-169472-S38926744472004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E152, M31 Harness for open or short between "fuel level sensor unit and fuel pump" and combination meter Repair open circuit or short to ground or short to power in harness or connector.
7. CHECK FUEL TANK TEMPERATURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S05881714082004120900000) . OK or NG OK: GO TO 8. NG: Replace fuel level sensor unit.
8. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 420

Scheme 421

1. Remove fuel level sensor unit.
2. Check resistance between "fuel level sensor unit and fuel pump" terminals 4 and 5 by heating with hot water or heat gun as shown in the figure.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 422

Specification data are reference values and are measured between each terminal and ground.

Scheme 423

Scheme 424

Scheme 425

Scheme 426

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000). OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-I Disconnect electric throttle control actuator harness connector. Turn ignition switch ON. Check voltage between electric throttle control actuator terminal 2 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 7. NG: GO TO 3.
3. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 2 and ECM terminal 47. Refer to «WIRING DIAGRAM»(ref-169472-S16612468952004120900000). Continuity should exist. OK or NG OK: GO TO 4. NG: Repair or replace open circuit.
4. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II Check the following. Harness for short to power and short to ground, between the following terminals. (Scheme 407) OK or NG OK: GO TO 5. NG: Repair short to ground or short to power in harness or connectors.
5. CHECK ACCELERATOR PEDAL POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34953777782004120900000). OK or NG OK: GO TO 11. NG: GO TO 6.
6. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
7. CHECK THROTTLE POSITION SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 66. Refer to «WIRING DIAGRAM»(ref-169472-S16612468952004120900000). Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK THROTTLE POSITION SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 1. Refer to «WIRING DIAGRAM»(ref-169472-S16612468952004120900000). Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK THROTTLE POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S24818151832004120900000). OK or NG OK: GO TO 11. NG: GO TO 10.
10. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
11. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000). INSPECTION END

Scheme 427

Scheme 428

1. Reconnect all harness connectors disconnected.
2. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
3. Turn ignition switch ON.
4. Set selector lever to D position.
5. Check voltage between ECM terminals 50 (TP sensor), 69 (TP sensor 2 signal) and ground under the following conditions.
6. If NG, replace electric throttle control actuator and go to the next step.
7. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
8. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 429

Specification data are reference values and are measured between each terminal and ground.

Scheme 430

Scheme 431

Scheme 432

1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I Turn ignition switch OFF. Disconnect ECM harness connector. Check resistance between ECM terminals 15, 36 and body ground. Refer to «WIRING DIAGRAM»(ref-169472-S00174143592004120900000) . NOTE: It is necessary to use an ohmmeter which can measure more than 10 M/ohms. Resistance: Approximately 532 - 588 k/ohms [at 20°C (68°F)] Also check harness for short to ground and short to power. OK or NG OK: GO TO 5. NG: GO TO 2.
2. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II Disconnect knock sensor harness connector. Check harness continuity between ECM terminal 15 and knock sensor (bank1) terminal 1, ECM terminal 36 and knock sensor (bank 2) terminal 1. Refer to «WIRING DIAGRAM»(ref-169472-S00174143592004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: GO TO 3.
3. DETECT MALFUNCTIONING PART Check the following. Harness connectors F26, F101 Harness for open or short between ECM and knock sensor Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK KNOCK SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S02485940272004120900000) . OK or NG OK: GO TO 5. NG: Replace knock sensor.
5. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 6. NG: Repair or replace ground connections.
6. CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect knock sensor harness connector. Check harness continuity between knock sensor terminal 2 and body ground. Refer to «WIRING DIAGRAM»(ref-169472-S00174143592004120900000) . Continuity should exist. Also check harness for short to power. OK or NG OK: GO TO 8. NG: GO TO 7.
7. DETECT MALFUNCTIONING PART Check the following. Harness connectors F26, F101 Harness connectors F14, E5 Harness for open or short between knock sensor terminal 2 and body ground Repair open circuit or short power in harness or connectors.
8. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 433

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by CONSULT-II.

Scheme 434

Scheme 435

Scheme 436

Scheme 437

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT Disconnect crankshaft position (CKP) sensor (POS) harness connector. Turn ignition switch ON. Check voltage between CKP sensor (POS) terminal 3 and ground with CONSULT-II or tester. Voltage: Battery voltage Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: GO TO 3.
3. DETECT MALFUNCTIONING PART Check the following. Harness connectors F33, E19 Harness for open or short between crankshaft position sensor (POS) and ECM Harness for open or short between crankshaft position sensor (POS) and IPDM E/R Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK CKP SENSOR (POS) GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Check harness continuity between CKP sensor (POS) terminal 1 and body ground. Refer to «WIRING DIAGRAM»(ref-169472-S29360812362004120900000) . Continuity should exist. Also check harness for short to power. OK or NG OK: GO TO 6. NG: GO TO 5.
5. DETECT MALFUNCTIONING PART Check the following. Harness connectors F32, E2 Harness for open or short between crankshaft position sensor (POS) and ground Repair open circuit or short to power in harness or connectors.
6. CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Disconnect ECM harness connector. Check harness continuity between ECM terminal 13 and CKP sensor (POS) terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S29360812362004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK CRANKSHAFT POSITION SENSOR (POS) Refer to «COMPONENT INSPECTION»(ref-169472-S13728830722004120900000) . OK or NG OK: GO TO 8. NG: Replace crankshaft position sensor (POS).
8. CHECK GEAR TOOTH Visually check for chipping signal plate gear tooth. OK or NG OK: GO TO 9. NG: Replace the signal plate.
9. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 438

Scheme 439

Scheme 440

1. Loosen the fixing bolt of the sensor.
2. Disconnect crankshaft position sensor (POS) harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown in the figure.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 441

Specification data are reference values and are measured between each terminal and ground.

Pulse signal is measured by CONSULT-II.

Scheme 442

Scheme 443

Scheme 444

Scheme 445

1. CHECK STARTING SYSTEM Turn ignition switch to START position. Does the engine turn over? Does the starter motor operate? Yes or No Yes: GO TO 2. No: Check starting system. Refer to «STARTERS - TITAN»(ref-168490) article.
2. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 3. NG: Repair or replace ground connections.
3. CHECK CAMSHAFT POSITION (CMP) SENSOR (PHASE) POWER SUPPLY CIRCUIT Disconnect camshaft position (CMP) sensor (PHASE) harness connector. Turn ignition switch ON. Check voltage between CMP sensor (PHASE) terminal 3 and ground with CONSULT-II or tester. Voltage: Battery voltage Also check harness for short to ground and short to power. OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors F33, E19 Harness for open or short between camshaft position sensor (PHASE) and ECM Harness for open or short between camshaft position sensor (PHASE) and IPDM E/R Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Check harness continuity between CMP sensor (PHASE) terminal 1 and body ground. Continuity should exist. Also check harness for short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors F32, E2 Harness for open or short between CMP sensor (PHASE) and body ground Repair open circuit or short to power in harness or connectors.
7. CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Disconnect ECM harness connector. Check harness continuity between ECM terminal 14 and CMP sensor (PHASE) terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S21008932552004120900000) . Continuity should exist. Also check harness for short to ground or short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK CAMSHAFT POSITION SENSOR (PHASE) Refer to «COMPONENT INSPECTION»(ref-169472-S15924654632004120900000) . OK or NG OK: GO TO 9. NG: Replace camshaft position sensor (PHASE).
9. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 446

Scheme 447

Scheme 448

1. Loosen the fixing bolt of the sensor.
2. Disconnect camshaft position sensor (PHASE) harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown in the figure.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 449

Specification data are reference values and are measured between each terminal and ground.

Pulse signal is measured by CONSULT-II.

Scheme 450

Scheme 451

Scheme 452

Scheme 453

1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect EVAP canister purge volume control solenoid valve harness connector. Turn ignition switch ON. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 3. NG: GO TO 2.
2. DETECT MALFUNCTIONING PART Check the following. Harness connectors E2, F32 Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R Harness for open or short between EVAP canister purge volume control solenoid valve and ECM Repair harness or connectors.
3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 45 and EVAP canister purge volume control solenoid valve terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S39652500232004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK (With CONSULT-II): GO TO 4. OK (Without CONSULT-II): GO TO 5. NG: Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION With CONSULT-II Reconnect all harness connectors disconnected. Start engine. Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT-II. Check that engine speed varies according to the valve opening. OK or NG OK: GO TO 6. NG: GO TO 5.
5. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE Refer to «COMPONENT INSPECTION»(ref-169472-S26890278992004120900000) . OK or NG OK: GO TO 6. NG: Replace EVAP canister purge volume control solenoid valve.
6. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 454

Specification data are reference values and are measured between each terminal and ground.

Scheme 455

Scheme 456

Scheme 457

Scheme 458

1. INSPECTION START Do you have CONSULT-II? Yes or No Yes: GO TO 2. No: GO TO 3.
2. CHECK EVAP CANISTER VENT CONTROL VALVE CIRCUIT With CONSULT-II Turn ignition switch OFF and then turn ON. Select "VENT CONTROL/V" in "ACTIVE TEST" mode with CONSULT-II. Touch "ON/OFF" on CONSULT-II screen. Check for operating sound of the valve. Clicking noise should be heard. OK or NG OK: GO TO 7. NG: GO TO 3.
3. CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect EVAP canister vent control valve harness connector. Turn ignition switch ON. Check voltage between EVAP canister vent control valve terminal 1 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors E41, C1 IPDM E/R harness connector E119 Harness for open or short between EVAP canister vent control valve and IPDM E/R Repair harness or connectors.
5. CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 117 and EVAP canister vent control valve terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S39193908382004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors E41, C1 Harness for open or short between EVAP canister vent control valve and ECM Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK RUBBER TUBE FOR CLOGGING Disconnect rubber tube connected to EVAP canister vent control valve. Check the rubber tube for clogging. OK or NG OK: GO TO 8. NG: Clean the rubber tube using an air blower.
8. CHECK EVAP CANISTER VENT CONTROL VALVE Refer to «COMPONENT INSPECTION»(ref-169472-S25888519002004120900000) . OK or NG OK: GO TO 9. NG: Replace EVAP canister vent control valve.
9. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 459

Specification data are reference values and are measured between each terminal and ground.

Scheme 460

Scheme 461

Scheme 462

Scheme 463

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK CONNECTOR Disconnect EVAP control system pressure sensor harness connector. Check sensor harness connector for water. Water should not exist. OK or NG OK: GO TO 3. NG: Repair or replace harness connector.
3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT Turn ignition switch ON. Check voltage between EVAP control system pressure sensor terminal 3 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E5, F14 Harness for open or short between EVAP control system pressure sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between EVAP control system pressure sensor terminal 1 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S33222375202004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E5, F14 Harness for open or short between EVAP control system pressure sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 32 and EVAP control system pressure sensor terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S33222375202004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: GO TO 8.
8. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E5, F14 Harness for open or short between EVAP control system pressure sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S19680571272004120900000) . OK or NG OK: GO TO 10. NG: Replace EVAP control system pressure sensor.
10. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 464

Scheme 465

1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister. Always replace O-ring with a NEW one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM terminal 32 and ground under the following conditions. CAUTION: Always calibrate the vacuum pump gauge when using it. Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 466

Specification data are reference values and are measured between each terminal and ground.

Scheme 467

Scheme 468

Scheme 469

Scheme 470

Scheme 471

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK CONNECTOR Disconnect EVAP control system pressure sensor harness connector. Check sensor harness connector for water. Water should not exist. OK or NG OK: GO TO 3. NG: Repair or replace harness connector.
3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT Turn ignition switch ON. Check voltage between EVAP control system pressure sensor terminal 3 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E5, F14 Harness for open or short between EVAP control system pressure sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between EVAP control system pressure sensor terminal 1 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S40234407962004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E5, F14 Harness for open or short between EVAP control system pressure sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 32 and EVAP control system pressure sensor terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S40234407962004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: GO TO 8.
8. DETECT MALFUNCTIONING PART Check the following. Harness connectors C1, E41 Harness connectors E5, F14 Harness for open or short between EVAP control system pressure sensor and ECM Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK RUBBER TUBE Disconnect rubber tube connected to EVAP canister vent control valve. Check the rubber tube for clogging, vent or kinked. OK or NG OK: GO TO 10. NG: Clean the rubber tube using an air blower, repair or replace rubber tube.
10. CHECK EVAP CANISTER VENT CONTROL VALVE Refer to «COMPONENT INSPECTION»(ref-169472-S25888519002004120900000) . OK or NG OK: GO TO 11. NG: Replace EVAP canister vent control valve.
11. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S19256344452004120900000) . OK or NG OK: GO TO 12. NG: Replace EVAP control system pressure sensor.
12. CHECK IF EVAP CANISTER SATURATED WITH WATER Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. Check if water will drain from the EVAP canister. Yes or No Yes: GO TO 13. No GO TO 15.
13. CHECK EVAP CANISTER Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached. The weight should be less than 2.2 kg (4.9 lb). OK or NG OK: GO TO 15. NG: GO TO 14.
14. DETECT MALFUNCTIONING PART Check the following. EVAP canister for damage EVAP hose between EVAP canister and vehicle frame for clogging or poor connection Repair hose or replace EVAP canister.
15. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 472

Scheme 473

1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister. Always replace O-ring with a NEW one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM terminal 32 and ground under the following conditions. CAUTION: Always calibrate the vacuum pump gauge when using it. Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 474

Specification data are reference values and are measured between each terminal and ground.

Scheme 475

Scheme 476

Scheme 477

Scheme 478

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK PSP SENSOR POWER SUPPLY CIRCUIT Disconnect PSP sensor harness connector. Turn ignition switch ON. Check voltage between PSP sensor terminal 1 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 3. NG: Repair harness or connectors.
3. CHECK PSP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between PSP sensor terminal 3 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S20479810162004120900000) . Continuity should exist. Also check harness for short to ground or short to power. OK or NG OK: GO TO 4. NG: Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 12 and PSP sensor terminal 2. Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 5. NG: Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK PSP SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S26073742932004120900000) . OK or NG OK: GO TO 6. NG: Replace PSP sensor.
6. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 479

Scheme 480

1. Reconnect all harness connectors disconnected.
2. Start engine and let it idle.
3. Check voltage between ECM terminal 12 and ground under the following conditions.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 481

Specification data are reference values and are measured between each terminal and ground.

Scheme 482

Scheme 483

1. CHECK ECM POWER SUPPLY Turn ignition switch OFF. Disconnect ECM harness connector. Check voltage between ECM terminal 121 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 3. NG: GO TO 2.
2. DETECT MALFUNCTIONING PART Check the following. IPDM E/R connector E121 20A fuse Harness for open or short between ECM and battery Repair or replace harness or connectors.
3. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: GO TO 4. NG: Repair or replace harness or connectors.
4. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT-II Turn ignition switch ON. Select "SELF DIAG RESULTS" mode with CONSULT-II. Touch "ERASE". Perform DTC Confirmation Procedure. See «DTC CONFIRMATION PROCEDURE»(ref-169472-S33896555252004120900000) . Is the 1st trip DTC P1065 displayed again? With GST Turn ignition switch ON. Select MODE 4 with GST. Touch "ERASE". Perform DTC Confirmation Procedure. See «DTC CONFIRMATION PROCEDURE»(ref-169472-S33896555252004120900000) . Is the 1st trip DTC P1065 displayed again? Yes or No Yes: GO TO 5. No: INSPECTION END
5. REPLACE ECM Replace ECM. Perform initialization of NVIS(NATS) system and registration of all NVIS(NATS) ignition key IDs. Refer to «ECM RE-COMMUNICATING FUNCTION»(ref-170166-S19595175762005010500000) in POWER LOCKS, REMOTE KEYLESS ENTRY & ANTI-THEFT SYSTEMS - TITAN article in ACCESSORIES & BODY, CAB. . Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 484

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by CONSULT-II.

Scheme 485

Scheme 486

Scheme 487

Scheme 488

Scheme 489

Scheme 490

Scheme 491

Scheme 492

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I Check voltage between ECM terminal 3 and ground under the following conditions with CONSULT-II or tester. OK or NG OK: GO TO 9. NG: GO TO 3.
3. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E119. Check harness continuity between ECM terminal 3 and IPDM E/R terminal 6. Refer to «WIRING DIAGRAM»(ref-169472-S12437439742004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors E2, F32 Harness for open or short between ECM and IPDM E/R Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I Reconnect all harness connectors disconnected. Turn ignition switch OFF. Check voltage between ECM terminal 104 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 8. NG: GO TO 6.
6. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E122. Check harness continuity between ECM terminal 104 and IPDM E/R terminal 47. Refer to «WIRING DIAGRAM»(ref-169472-S12437439742004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK FUSE Disconnect 20A fuse. Check 20A fuse for blown. OK or NG OK: GO TO 8. NG: Replace 20A fuse.
8. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-215158-S15869939542006011000000) in IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) - TITAN article. NG: Repair or replace harness or connectors.
9. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT Turn ignition switch OFF. Disconnect electric throttle control actuator harness connector. Disconnect ECM harness connector. Check harness continuity between the following terminals. Refer to «WIRING DIAGRAM»(ref-169472-S12437439742004120900000) . Also check harness for short to ground and short to power. OK or NG OK: GO TO 10. NG: Repair or replace.
10. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY Remove the intake air duct. Check if foreign matter is caught between the throttle valve and the housing. OK or NG OK: GO TO 11. NG: Remove the foreign matter and clean the electric throttle control actuator inside.
11. CHECK THROTTLE CONTROL MOTOR Refer to «COMPONENT INSPECTION»(ref-169472-S42574908492004120900000) . OK or NG OK: GO TO 12. NG: GO TO 13.
12. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: GO TO 13. NG: Repair or replace harness or connectors.
13. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END

Scheme 493

1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between terminals 5 and 6. Resistance: Approximately 1 -15 ohms [at 25 °C (77°F)]
3. If NG, replace electric throttle control actuator and go to next step.
4. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
5. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 494

Specification data are reference values and are measured between each terminal and ground.

Scheme 495

Scheme 496

Scheme 497

Scheme 498

1. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I Turn ignition switch OFF. Check voltage between ECM terminal 104 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 4. NG: GO TO 2.
2. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E122. Check continuity between ECM terminal 104 and IPDM E/R terminal 47. Refer to «WIRING DIAGRAM»(ref-169472-S05688537092004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 3. NG: Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK FUSE Disconnect 20A fuse. Check 20A fuse for blown. OK or NG OK: GO TO 7. NG: Replace 20A fuse.
4. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I Check voltage between ECM terminal 3 and ground under the following conditions with CONSULT-II or tester. OK or NG OK: GO TO 7. NG: GO TO 5.
5. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E119. Check continuity between ECM terminal 3 and IPDM E/R terminal 6. Refer to «WIRING DIAGRAM»(ref-169472-S05688537092004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 7. NG: GO TO 6.
6. DETECT MALFUNCTIONING PART Check the following. Harness connectors E2, F32 Harness for open or short between ECM and IPDM E/R Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-215158-S15869939542006011000000) in IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) - TITAN article. NG: Repair or replace harness or connectors.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 499

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by CONSULT-II.

Scheme 500

Scheme 501

Scheme 502

Scheme 503

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT Disconnect electric throttle control actuator harness connector. Disconnect ECM harness connector. Check harness continuity between the following terminals. Refer to «WIRING DIAGRAM»(ref-169472-S17014809542004120900000) . Also check harness for short to ground and short to power. OK or NG OK: GO TO 3. NG: Repair or replace.
3. CHECK THROTTLE CONTROL MOTOR Refer to «COMPONENT INSPECTION»(ref-169472-S34733283272004120900000) . OK or NG OK: GO TO 4. NG: GO TO 5.
4. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: GO TO 5. NG: Repair or replace harness or connectors.
5. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END

Scheme 504

1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between terminals 5 and 6. Resistance: Approximately 1 -15 ohms [at 25 °C (77°F)]
3. If NG, replace electric throttle control actuator and go to next step.
4. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
5. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 505

Scheme 506

Scheme 507

Scheme 508

Scheme 509

Scheme 510

Scheme 511

1. INSPECTION START Do you have CONSULT-II? Yes or No Yes: GO TO 2. No: GO TO 3.
2. CHECK COOLING FAN MOTOR OPERATION WITH CONSULT-II Start engine and let it idle. Select "COOLING FAN" in "ACTIVE TEST" mode with CONSULT-II. Make sure that cooling fan operates. OK or NG OK: GO TO 4. NG: Check cooling fan control circuit. (Go to «PROCEDURE A»(ref-169472-S13383715052004120900000) .)
3. CHECK COOLING FAN MOTOR OPERATION Without CONSULT-II Disconnect engine coolant temperature sensor harness connector. Connect 150 ohm resistor to engine coolant temperature sensor harness connector. Start engine and let it idle. Make sure that cooling fan operates. OK or NG OK: GO TO 4. NG: Check cooling fan control circuit. (Go to «PROCEDURE A»(ref-169472-S13383715052004120900000) .)
4. CHECK COOLING SYSTEM FOR LEAK Apply pressure to the cooling system with a tester, and check if the pressure drops. Testing pressure: 157 kPa (1.6 kg/cm 2 , 23 psi) CAUTION: Higher than the specified pressure may cause radiator damage. Pressure should not drop. OK or NG OK: GO TO 5. NG: Check the cooling system for leaks. . Hose Radiator Water pump
5. CHECK RADIATOR CAP Apply pressure to cap with a tester. Radiator cap relief pressure: 59 - 98 kPa (0.6 - 1.0 kg/cm 2 , 9 - 14 psi) OK or NG OK: GO TO 6. NG: Replace radiator cap.
6. CHECK THERMOSTAT Check valve seating condition at normal room temperatures. It should seat tightly. Check valve opening temperature and valve lift. Valve opening temperature: 82°C (180°F) [standard] Valve lift: More than 10.0 mm/95°C (0.394 in/203°F) Check if valve is closed at 5°C (9°F) below valve opening temperature. For details, refer to «THERMOSTAT AND WATER PIPING»(ref-169421-S17591558802004120800000) in ENGINE COOLING SYSTEM - TITAN article. OK or NG OK: GO TO 7. NG: Replace thermostat
7. CHECK ENGINE COOLANT TEMPERATURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S07980097282004120900000) . OK or NG OK: GO TO 8. NG: Replace engine coolant temperature sensor.
8. CHECK MAIN 12 CAUSES If the cause cannot be isolated, go to «MAIN 12 CAUSES OF OVERHEATING»(ref-169472-S36508662662004120900000) . : INSPECTION END

Scheme 512

Scheme 513

1. CHECK POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect IPDM E/R harness connector E120. Check voltage between IPDM E/R terminal 22 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 3. NG: GO TO 2.
2. DETECT MALFUNCTIONING PART Check the following. 40A fusible link Harness for open or short between IPDM E/R and battery : Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT Disconnect cooling fan motor harness connector. Check harness continuity between cooling fan motor terminal 1 and IPDM E/R terminal 20, cooling fan motor terminal 2 and body ground. Refer to «WIRING DIAGRAM»(ref-169472-S27338129532004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK COOLING FAN MOTOR Refer to «COMPONENT INSPECTION»(ref-169472-S28793794382004120900000) . OK or NG OK: GO TO 5. NG: Replace cooling fan motor.
5. CHECK INTERMITTENT INCIDENT Perform «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-215158-S15869939542006011000000) in IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) - TITAN article. . NG: Repair or replace harness connectors.

Scheme 514

Scheme 515

1. Disconnect cooling fan motor harness connector.
2. Supply cooling fan motor terminals with battery voltage and check operation. Cooling fan motor should operate. If NG, replace cooling fan motor.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 516

Specification data are reference values and are measured between each terminal and ground.

Scheme 517

Scheme 518

Scheme 519

Scheme 520

Scheme 521

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT Disconnect accelerator pedal position (APP) sensor harness connector. Turn ignition switch ON. Check voltage between APP sensor terminal 6 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 5. NG: GO TO 3.
3. CHECK SENSOR POWER SUPPLY CIRCUITS Check the following. Harness for short to power and short to ground, between the following terminals OK or NG OK: GO TO 4. NG: Repair short to ground or short to power in harness or connectors.
4. CHECK COMPONENTS Check the following. EVAP control system pressure sensor (Refer to «COMPONENT INSPECTION»(ref-169472-S19680571272004120900000) .) Power steering pressure sensor (Refer to «COMPONENT INSPECTION»(ref-169472-S26073742932004120900000) .) Refrigerant pressure sensor (Refer to «REFRIGERANT PRESSURE SENSOR»(ref-169809-S13791788152004121600000) .) in SYSTEM & COMPONENT TESTING - TITAN article. OK or NG OK: GO TO 7. NG: Replace malfunctioning components.
5. CHECK ACCELERATOR PEDAL POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S37709475602004120900000) . OK or NG OK: GO TO 7. NG: GO TO 6.
6. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace accelerator pedal position assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. : INSPECTION END
7. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . : INSPECTION END

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 522

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by CONSULT-II.

Scheme 523

Scheme 524

Scheme 525

Scheme 526

Scheme 527

1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect EVAP canister purge volume control solenoid valve harness connector. Turn ignition switch ON. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 3. NG: GO TO 2.
2. DETECT MALFUNCTIONING PART Check the following. Harness connectors E2, F32 IPDM E/R harness connector E119 Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R Harness for open or short between EVAP canister purge volume control solenoid valve and ECM : Repair harness or connectors.
3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 45 and EVAP canister purge volume control solenoid valve terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S29144218602004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR Disconnect EVAP control system pressure sensor harness connector. Check connectors for water. Water should not exist. OK or NG OK: GO TO 5. NG: Replace EVAP control system pressure sensor.
5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S32685634342004120900000) . OK or NG OK (With CONSULT-II): GO TO 6. OK (Without CONSULT-II): GO TO 7. NG: Replace EVAP control system pressure sensor.
6. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE WITH CONSULT-II Turn ignition switch OFF. Reconnect all harness connectors disconnected. Start engine. Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT-II. Check that engine speed varies according to the valve opening. OK or NG OK: GO TO 8. NG: GO TO 7.
7. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE Refer to «COMPONENT INSPECTION»(ref-169472-S33006315862004120900000) . OK or NG OK: GO TO 8. NG: Replace EVAP canister purge volume control solenoid valve.
8. CHECK RUBBER TUBE FOR CLOGGING Disconnect rubber tube connected to EVAP canister vent control valve. Check the rubber tube for clogging. OK or NG OK: GO TO 9. NG: Clean the rubber tube using an air blower.
9. CHECK EVAP CANISTER VENT CONTROL VALVE Refer to «COMPONENT INSPECTION»(ref-169472-S25888519002004120900000) . OK or NG OK: GO TO 10. NG: Replace EVAP canister vent control valve.
10. CHECK IF EVAP CANISTER SATURATED WITH WATER Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. Check if water will drain from the EVAP canister. Yes or No Yes: GO TO 11. No: GO TO 13.
11. CHECK EVAP CANISTER Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached. The weight should be less than 2.2 kg (4.9 lb). OK or NG OK: GO TO 13. NG: GO TO 12.
12. DETECT MALFUNCTIONING PART Check the following. EVAP canister for damage EVAP hose between EVAP canister and vehicle frame for clogging or poor connection : Repair hose or replace EVAP canister.
13. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 528

Specification data are reference values and are measured between each terminal and ground.

Scheme 529

Scheme 530

Scheme 531

1. CHECK RUBBER TUBE Turn ignition switch OFF. Disconnect rubber tube connected to EVAP canister vent control valve. Check the rubber tube for clogging. OK or NG OK: GO TO 2. NG: Clean rubber tube using an air blower.
2. CHECK EVAP CANISTER VENT CONTROL VALVE Refer to «COMPONENT INSPECTION»(ref-169472-S05388883332004120900000) . OK or NG OK: GO TO 3. NG: Replace EVAP canister vent control valve.
3. CHECK IF EVAP CANISTER SATURATED WITH WATER Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. Check if water will drain from the EVAP canister. Yes or No Yes: GO TO 4. No: GO TO 6.
4. CHECK EVAP CANISTER Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached. The weight should be less than 2.2 kg (4.9 lb). OK or NG OK: GO TO 6. NG: GO TO 5.
5. DETECT MALFUNCTIONING PART Check the following. EVAP canister for damage EVAP hose between EVAP canister and vehicle frame for clogging or poor connection : Repair hose or replace EVAP canister.
6. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR Disconnect EVAP control system pressure sensor harness connector. Check connectors for water. Water should not exist. OK or NG OK: GO TO 7. NG: Replace EVAP control system pressure sensor.
7. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S32685634342004120900000) . OK or NG OK: GO TO 8. NG: Replace EVAP control system pressure sensor.
8. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 532

Scheme 533

Scheme 534

1. Remove EVAP canister vent control valve from EVAP canister.
2. Check portion B of EVAP canister vent control valve for being rusted. If NG, replace EVAP canister vent control valve. If OK, go to next step.
3. Reconnect harness connectors disconnected.
4. Turn ignition switch ON.
5. Perform "VENT CONTROL/V" in "ACTIVE TEST" mode.
6. Check air passage continuity and operation delay time. Make sure that NEW O-ring is installed properly. Operation takes less than 1 second. If NG, replace EVAP canister vent control valve. If OK, go to next step.
7. Clean the air passage (Portion A to B ) of EVAP canister vent control valve using an air blower.
8. Perform step 6 again.

Without CONSULT-II

Scheme 535

Scheme 536

Scheme 537

1. Remove EVAP canister vent control valve from EVAP canister.
2. Check portion B of EVAP canister vent control valve for being rusted.
3. Check air passage continuity and operation delay time under the following conditions. Make sure that NEW O-ring is installed properly. Operation takes less than 1 second. If NG, replace EVAP canister vent control valve. If OK, go to next step.
4. Clean the air passage (Portion A to B ) of EVAP canister vent control valve using an air blower.
5. Perform step 3 again.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 538

Specification data are reference values and are measured between each terminal and ground.

Scheme 539

Scheme 540

Scheme 541

Scheme 542

Scheme 543

Scheme 544

1. CHECK ASCD STEERING SWITCH CIRCUIT With CONSULT-II Turn ignition switch ON. Select "MAIN SW", "RESUME/ACC SW", "SET SW" and "CANCEL SW" in "DATA MONITOR" mode with CONSULT-II. Check each item indication under the following conditions. Without CONSULT-II Turn ignition switch ON. Check voltage between ECM terminal 99 and ground with pressing each button. OK or NG OK: GO TO 7. NG: GO TO 2.
2. CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Disconnect combination switch harness connector. Check harness continuity between combination switch terminal 15 and ECM terminal 67. Refer to «WIRING DIAGRAM»(ref-169472-S36713862672004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: GO TO 3.
3. DETECT MALFUNCTIONING PART Check the following. Harness connectors M31, E152 Harness connectors E19, F33 Combination switch (spiral cable) Harness for open and short between ECM and combination switch : Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 99 and combination switch terminal 14. Refer to «WIRING DIAGRAM»(ref-169472-S36713862672004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 6. NG: GO TO 5.
5. DETECT MALFUNCTIONING PART Check the following. Harness connectors M31, E152 Combination switch (spiral cable) Harness for open and short between ECM and combination switch : Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK ASCD STEERING SWITCH Refer to «COMPONENT INSPECTION»(ref-169472-S08927322742004120900000) . OK or NG OK: GO TO 7. NG: Replace ASCD steering switch.
7. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 545

Scheme 546

1. Disconnect combination switch (spiral cable).
2. Check continuity between ASCD steering switch terminals 14 and 15 with pushing each switch.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 547

Specification data are reference values and are measured between each terminal and ground.

Scheme 548

Scheme 549

Scheme 550

Scheme 551

Scheme 552

Scheme 553

Scheme 554

Scheme 555

Scheme 556

Scheme 557

Scheme 558

Scheme 559

Scheme 560

1. CHECK OVERALL FUNCTION-I With CONSULT-II Turn ignition switch ON. Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT-II. Check "BRAKE SW1" indication under the following conditions. Without CONSULT-II Turn ignition switch ON. Check voltage between ECM terminal 108 and ground under the following conditions. OK or NG OK: GO TO 2. NG: GO TO 3.
2. CHECK OVERALL FUNCTION-II With CONSULT-II Check "BRAKE SW2" indication in "DATA MONITOR" mode. Without CONSULT-II Check voltage between ECM terminal 101 and ground under the following conditions. OK or NG OK: GO TO 11. NG: GO TO 7.
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect ASCD brake switch harness connector. Turn ignition switch ON. Check voltage between ASCD brake switch terminal 1 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 5. NG: GO TO 4.
4. DETECT MALFUNCTIONING PART Check the following. Harness connectors M31, E152 Fuse block (J/B) connector M4 10A fuse Harness for open or short between ASCD brake switch and fuse : Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S17558665202004120900000) . Continuity should exist. Also check harness for short to ground or short to power. OK or NG OK: GO TO 6. NG: Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK ASCD BRAKE SWITCH Refer to «COMPONENT INSPECTION»(ref-169472-S30007704282004120900000) . OK or NG OK: GO TO 11. NG: Replace ASCD brake switch.
7. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect stop lamp switch harness connector. Check voltage between stop lamp switch terminal 1 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 9. NG: GO TO 8.
8. DETECT MALFUNCTIONING PART Check the following. Harness connectors M31, E152 Fuse block (J/B) connector M60 10A fuse Harness for open or short between stop lamp switch and fuse : Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Disconnect ECM harness connector. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S17558665202004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 10. NG: Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK STOP LAMP SWITCH Refer to «COMPONENT INSPECTION»(ref-169472-S30007704282004120900000) . OK or NG OK: GO TO 11. NG: Replace stop lamp switch.
11. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 561

Scheme 562

1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check harness continuity between ASCD brake switch terminals 1 and 2 under the following conditions. If NG, adjust ASCD brake switch installation, refer to «ADJUSTMENTS»(ref-163877-S11486847942004071500000) in DISC - TITAN article in BRAKES. , and perform step 3 again.

Scheme 563

Scheme 564

1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check harness continuity between stop lamp switch terminals 1 and 2 under the following conditions. If NG, adjust stop lamp switch installation, refer to «ADJUSTMENTS»(ref-163877-S11486847942004071500000) in DISC - TITAN article in BRAKES. , and perform step 3 again.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 565

Specification data are reference values and are measured between each terminal and ground.

Scheme 566

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 567

Specification data are reference values and are measured between each terminal and ground.

Scheme 568

Scheme 569

Scheme 570

Scheme 571

1. CHECK STOP LAMP SWITCH CIRCUIT Turn ignition switch OFF. Check the stop lamp when depressing and releasing the brake pedal. OK or NG OK: GO TO 4. NG: GO TO 2.
2. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT Disconnect stop lamp switch harness connector. Check voltage between stop lamp switch terminal 1 and ground with CONSULT-II or tester. Voltage: Battery voltage OK or NG OK: GO TO 4. NG: GO TO 3.
3. DETECT MALFUNCTIONING PART Check the following. Harness connectors M31, E152 Fuse block (J/B) connector M60 10A fuse Harness for open and short between stop lamp switch and fuse : Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S13333969152004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 5. NG: Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK STOP LAMP SWITCH Refer to «COMPONENT INSPECTION»(ref-169472-S00272266112004120900000) . OK or NG OK: GO TO 7. NG: Replace stop lamp switch.
6. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 572

Scheme 573

Scheme 574

1. Disconnect stop lamp switch harness connector.
2. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
3. If NG, adjust stop lamp switch installation, refer to «ADJUSTMENTS»(ref-163877-S11486847942004071500000) in DISC - TITAN article in BRAKES. , and perform step 2 again.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 575

Specification data are reference values and are measured between each terminal and ground.

Scheme 576

Scheme 577

Scheme 578

Scheme 579

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT Disconnect accelerator pedal position (APP) sensor harness connector. Turn ignition switch ON. Check voltage between APP sensor terminal 6 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 3. NG: Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 82 and APP sensor terminal 1. Refer to «WIRING DIAGRAM»(ref-169472-S26727617782004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4. NG: Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 106 and APP sensor terminal 2. Refer to «WIRING DIAGRAM»(ref-169472-S26727617782004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 5. NG: Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK APP SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S11154767412004120900000) . OK or NG OK: GO TO 7. NG: GO TO 6.
6. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
7. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 580

Scheme 581

1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 signal), 98 (APP sensor 2 signal) and ground under the following conditions.
4. If NG, replace accelerator pedal assembly and go to next step.
5. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
6. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
7. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 582

Specification data are reference values and are measured between each terminal and ground.

Scheme 583

Scheme 584

Scheme 585

Scheme 586

Scheme 587

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000) . OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I Disconnect accelerator pedal position (APP) sensor harness connector. Turn ignition switch ON. Check voltage between APP sensor terminal 7 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 7. NG: GO TO 3.
3. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between APP sensor terminal 7 and ECM terminal 91. Refer to «WIRING DIAGRAM»(ref-169472-S19632467712004120900000) . Continuity should exist. OK or NG OK: GO TO 4. NG: Repair or replace open circuit.
4. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II Check the following. Harness for short to power and short to ground, between the following terminals OK or NG OK: GO TO 5. NG: Repair short to ground or short to power in harness or connectors.
5. CHECK THROTTLE POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34804148382004120900000) . OK or NG OK: GO TO 11. NG: GO TO 6.
6. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
7. CHECK APP SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 83 and APP sensor terminal 3. Refer to «WIRING DIAGRAM»(ref-169472-S19632467712004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK APP SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 98 and APP sensor terminal 5. Refer to «WIRING DIAGRAM»(ref-169472-S19632467712004120900000) . Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK APP SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S11154767412004120900000) . OK or NG OK: GO TO 11. NG: GO TO 10.
10. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
11. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000) . INSPECTION END

Scheme 588

Scheme 589

1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 signal), 98 (APP sensor 2 signal) and ground under the following conditions.
4. If NG, replace accelerator pedal assembly and go to next step.
5. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
6. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
7. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 590

Specification data are reference values and are measured between each terminal and ground.

Scheme 591

Scheme 592

Scheme 593

Scheme 594

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000). OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-I Disconnect electric throttle control actuator harness connector. Turn ignition switch ON. Check voltage between electric throttle control actuator terminal 2 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 7. NG: GO TO 3.
3. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 2 and ECM terminal 47. Refer to «WIRING DIAGRAM»(ref-169472-S25908163492004120900000). Continuity should exist. OK or NG OK: GO TO 4. NG: Repair or replace open circuit.
4. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II Check the following. Harness for short to power and short to ground, between the following terminals. (Scheme 587) OK or NG OK: GO TO 5. NG: Repair short to ground or short to power in harness or connectors.
5. CHECK ACCELERATOR PEDAL POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34953777782004120900000). OK or NG OK: GO TO 11. NG: GO TO 6.
6. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
7. CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 66. Refer to «WIRING DIAGRAM»(ref-169472-S25908163492004120900000). Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 14, ECM terminal 69 and electric throttle control actuator terminal 3. Refer to «WIRING DIAGRAM»(ref-169472-S25908163492004120900000). Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK THROTTLE POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34804148382004120900000). OK or NG OK: GO TO 11. NG: GO TO 10.
10. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
11. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000). INSPECTION END

Scheme 595

Scheme 596

1. Reconnect all harness connectors disconnected.
2. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
3. Turn ignition switch ON.
4. Set selector lever to D position.
5. Check voltage between ECM terminals 50 (TP sensor 1 signal), 69 (TP sensor 2 signal) and ground under the following conditions.
6. If NG, replace electric throttle control actuator and go to the next step.
7. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
8. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.

For complete wiring diagrams, see SYSTEM WIRING DIAGRAMS - TITAN article in ELECTRICAL.

Scheme 597

Specification data are reference values and are measured between each terminal and ground.

Scheme 598

Scheme 599

Scheme 600

Scheme 601

1. CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten ground three screws on the body. Refer to «GROUND INSPECTION»(ref-169472-S14334914712004120900000). OK or NG OK: GO TO 2. NG: Repair or replace ground connections.
2. CHECK APP SENSOR POWER SUPPLY CIRCUIT Disconnect accelerator pedal position (APP) sensor harness connector. Turn ignition switch ON. Check voltage between APP sensor terminals 6, 7 and ground with CONSULT-II or tester. Voltage: Approximately 5V OK or NG OK: GO TO 7. NG: GO TO 3.
3. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between APP sensor terminal 7 and ECM terminal 91. Refer to «WIRING DIAGRAM»(ref-169472-S25318957112004120900000). Continuity should exist. OK or NG OK: GO TO 4. NG: Repair open circuit.
4. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II Check the following. Harness for short to power and short to ground, between the following terminals. (Scheme 587) OK or NG OK: GO TO 5. NG: Repair short to ground or short to power in harness connectors.
5. CHECK THROTTLE POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S34804148382004120900000). OK or NG OK: GO TO 11. NG: GO TO 6.
6. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
7. CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 82 and APP sensor terminal 1, ECM terminal 83 and APP sensor terminal 3. Refer to «WIRING DIAGRAM»(ref-169472-S25318957112004120900000). Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 8. NG: Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 106 and APP sensor terminal 2, ECM terminal 98 and APP sensor terminal 5. Refer to «WIRING DIAGRAM»(ref-169472-S25318957112004120900000). Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 9. NG: Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK ACCELERATOR PEDAL POSITION SENSOR Refer to «COMPONENT INSPECTION»(ref-169472-S11154767412004120900000). OK or NG OK: GO TO 11. NG: GO TO 10.
10. REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article. INSPECTION END
11. CHECK INTERMITTENT INCIDENT Refer to «TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT»(ref-169472-S11178043272004120900000). INSPECTION END

Scheme 602

Scheme 603

1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 signal), 98 (APP sensor 2 signal) and ground under the following conditions.
4. If NG, replace accelerator pedal assembly and go to next step.
5. Perform «ACCELERATOR PEDAL RELEASED POSITION LEARNING»(ref-169712-S24333390702004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
6. Perform «THROTTLE VALVE CLOSED POSITION LEARNING»(ref-169712-S39661707712004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.
7. Perform «IDLE AIR VOLUME LEARNING»(ref-169712-S09460714722004121500000) in BASIC DIAGNOSTIC PROCEDURES - TITAN article.