C1108

C1105, C1106, C1107, C1108 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 ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC "C1105", "C1106", "C1107", or "C1108" detected?
YES - Proceed to diagnosis procedure. Refer to C1105.
NO - INSPECTION END




Diagnosis Procedure

CAUTION:
Never check between wheel sensor harness connector terminals.
1.CHECK TIRES
Check air pressure, wear and size. Refer to [1][2]Specifications.
Is the inspection result normal?
YES - GO TO 2.
NO - Adjust air pressure or replace error-detected parts.
2.CHECK SENSOR AND SENSOR ROTOR
- Check sensor rotor for damage.
- Front: refer to Exploded View.
- Rear: refer to Exploded View.
- Check wheel sensor for damage, disconnection or looseness.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair wheel sensor mount or replace sensor rotor.
3.CHECK CONNECTOR
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 connector and terminal to see if it is deformed, disconnected, looseness, etc.
Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace error-detected parts.
4.CHECK WHEEL SENSOR HARNESS
1. Check the continuity between ABS actuator and electric unit (control unit) harness connector and wheel sensor harness connector. (Also check continuity when steering wheel is turned right and left and when sensor harness inside the wheel house is moved.)








2. Check the continuity between ABS actuator and electric unit (control unit) harness connector.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace error-detected parts.
5.REPLACE WHEEL SENSOR
1. Replace wheel sensor.
2. Erase ABS actuator and electric unit (control unit) self-diagnosis results.
3. Turn the ignition switch OFF.
4. Turn the ignition switch ON.

CAUTION:
Never start the engine.
5. Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC "C1105", "C1106", "C1107" or "C1108" detected?
YES - Replace ABS actuator and electric unit (control unit). Refer to Exploded View
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. Refer to Special Repair Requirement
- END