C1914

C1914 REAR WHEEL STEERING ANGLE SENSOR





DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.RECHECK DTC
With CONSULT-III
1. Turn the ignition switch from OFF to ON.
2. Perform self-diagnosis for "4WAS(MAIN)/RAS/HICAS".
Is DTC "C1914" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK REAR WHEEL STEERING ANGLE SENSOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Check the voltage between 4WAS main control unit harness connector terminal and the ground.





3. Turn the ignition switch ON.

CAUTION:
Never start the engine.
4. Check the voltage between 4WAS main control unit harness connector terminal and the ground.





Is the inspection result normal?
YES - GO TO 2.
NO - Replace 4WAS main control unit. 4WAS Main Control Unit.
- Before replacing 4WAS main control unit, record the self-diagnosis results(history). STC-
143, "Special Repair Requirement".
2.CHECK REAR WHEEL STEERING ANGLE SENSOR
Check the resistance between the rear wheel steering angle sensor connector terminals. SEE Component Inspection SEE Special Repair Requirement, "Component Inspection".
Is the inspection result normal?
YES - GO TO 3.
NO - Replace 4WAS rear actuator. Removal And Installation.
3.CHECK REAR WHEEL STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect 4WAS main control unit harness connector.
2. Check the continuity between 4WAS main control unit harness connector terminal and the rear wheel steering angle sensor harness connector terminal.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace the harnesses and connectors.
4.PERFORM SELF-DIAGNOSIS (4WAS MAIN CONTROL UNIT)
With CONSULT-III
1. Connect 4WAS main control unit harness connector.
2. Connect the rear wheel steering angle sensor harness connector.
3. Perform self-diagnosis for "4WAS(MAIN)/RAS/HICAS".
Is DTC "C1914" detected?
YES - Replace 4WAS main control unit. 4WAS Main Control Unit.
- Before replacing 4WAS main control unit, record the self-diagnosis results(history). STC-
143, "Special Repair Requirement".
NO - GO TO 5.
5.CHECK INFORMATION
With CONSULT-III
Check the "DATA MONITOR" value of each DTC detected with the self-diagnosis function. 4WAS Main Control Unit, "Reference Value".
Is each data the standard value?
YES - Check each harness connector pin terminal for disconnection.
NO - Replace 4WAS main control unit. 4WAS Main Control Unit.
- Before replacing 4WAS main control unit, record the self-diagnosis results(history). SEE Special Repair Requirement.




Component Inspection
1.CHECK REAR WHEEL STEERING ANGLE SENSOR
1. Turn the ignition switch OFF.
2. Disconnect rear wheel steering angle sensor harness connector.
3. Check the resistance between rear wheel steering angle sensor connector terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace 4WAS rear actuator. Removal And Installation.




Special Repair Requirement
Before replacing 4WAS main control unit, record the self-diagnosis results (history).

CAUTION:
- Never erase the memory (history) of self-diagnosis results when replacing 4WAS main control unit after diagnosis.
- Erase the memory of the self-diagnosis results (record) after printing out or recording all the values of "DATA MONITOR".