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Home >> Infiniti >> 2011 >> G37 Convertible V6-3.7L (VQ37VHR) >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> C Code Charts >> C1101

C1101


C1101, C1102, C1103, C1104 WHEEL SENSOR





Description
When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
1. Start the engine and drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
2. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1101", "C1102", "C1103" or "C1104" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure

CAUTION:
Never check between wheel sensor harness connector terminals.
1.CHECK WHEEL SENSOR
1. Turn the ignition switch OFF.
2. Check wheel sensor for damage.
Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.REPLACE WHEEL SENSOR (1)
1. Replace wheel sensor.
- Front: Removal And Installation VDC/TCS/ABS.
- Rear: Removal And Installation VDC/TCS/ABS.
2. Erase Self-diagnosis result for "ABS".
3. Turn the ignition switch OFF, and wait 10 seconds or more.
4. Start the engine.
5. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
6. Stop the vehicle.
7. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1101", "C1102", "C1103" or "C1104" detected?
YES - GO TO 3.
NO - INSPECTION END
3.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Check ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
3. Check wheel sensor harness connector for disconnection or looseness.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace error-detected parts, securely lock the connector, and GO TO 4.
4.PERFORM SELF-DIAGNOSIS (1)
1. Erase Self-diagnosis result for "ABS" with CONSULT-III.
2. Turn the ignition switch OFF, and wait 10 seconds or more.
3. Start the engine.
4. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
5. Stop the vehicle.
6. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1101", "C1102", "C1103" or "C1104" detected?
YES - GO TO 5.
NO - INSPECTION END
5.CHECK TERMINAL
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector and then check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
3. Disconnect wheel sensor harness connector and check each wheel sensor pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace error-detected parts and GO TO 6.
6.PERFORM SELF-DIAGNOSIS (2)
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
3. Erase Self-diagnosis result for "ABS".
4. Turn the ignition switch OFF, and wait 10 seconds or more.
5. Start the engine.
6. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
7. Stop the vehicle.
8. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1101", "C1102", "C1103" or "C1104" detected?
YES - GO TO 7.
NO - INSPECTION END
7.CHECK WHEEL SENSOR HARNESS
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Disconnect wheel sensor harness connector.
4. Check continuity between ABS actuator and electric unit (control unit) harness connector and wheel sensor harness connector. (Check continuity when steering wheel is steered to RH and LH, or center harness in wheel housing is moved.)






Is the inspection result normal?
YES - GO TO 9.
NO - Repair or replace error-detected parts and GO TO 8.
8.PERFORM SELF-DIAGNOSIS (3)
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
3. Erase Self-diagnosis result for "ABS".
4. Turn the ignition switch OFF, and wait 10 seconds or more.
5. Start the engine.
6. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
7. Stop the vehicle.
8. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1101", "C1102", "C1103" or "C1104" detected?
YES - GO TO 9.
NO - INSPECTION END
9.REPLACE WHEEL SENSOR
1. Replace wheel sensor.
- Front: Removal And Installation VDC/TCS/ABS.
- Rear: Removal And Installation VDC/TCS/ABS.
2. Erase Self-diagnosis result for "ABS" with CONSULT-III.
3. Turn the ignition switch OFF, and wait 10 seconds or more.
4. Start the engine.
5. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
6. Stop the vehicle.
7. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1101", "C1102", "C1103" or "C1104" detected?
YES - Replace ABS actuator and electric unit (control unit). Exploded View VDC/TCS/ABS.
NO - INSPECTION END




Special Repair Requirement
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit) or steering angle sensor and removing steering angle sensor. Special Repair Requirement
- END
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