C1667

C1667 LOCK INSERTION





Description
- Wiring connected to 4WAS front actuator is integrated with 4WAS front actuator.
- 4WAS front actuator rotates together with steering wheel.
- 4WAS front actuator mainly consists of five components. [4WAS front lock solenoid valve (lock structure), front wheel steering angle sensor, 4WAS front motor, gear shaft, and spiral cable]
- 4WAS front lock solenoid valve (lock structure) is controlled by the 4WAS front control unit, and locks/unlocks 4WAS front actuator.
- If a strong force (rotation direction) is applied to 4WAS front actuator, the locking mechanism (holder) absorbs the force and locks 4WAS front actuator.
- Front wheel steering angle sensor detects a turning angle of 4WAS front motor.
- 4WAS front motor controls number of revolutions by a command value from the 4WAS front control unit.
- Gear shaft is an output axis of 4WAS front motor. (Gear shaft = 4WAS front motor revolution + steering angle)
- Spiral cables mean the power line and signal lines of 4WAS front motor.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.RECHECK DTC
With CONSULT-III
1. Start the engine.

CAUTION:
Never drive the vehicle.
2. Steer 30� leftward slowly. Steer 30� rightward. Return the steering wheel to the straight-ahead position.
3. Turn the ignition switch OFF.
4. Turn the ignition switch ON.
5. Perform self-diagnosis for "4WAS(FRONT)".
Is DTC "C1667" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK 4WAS FRONT LOCK SOLENOID VALVE (LOCK STRUCTURE)
With CONSULT-III
1. Start the engine.

CAUTION:
Never drive the vehicle.
2. Steer 30� leftward slowly. Steer 30� rightward. Return the steering wheel to the straight-ahead position.
3. Turn the ignition switch OFF.
4. Turn the ignition switch ON.
5. Perform self-diagnosis for "4WAS(FRONT)".
Is DTC "C1667" detected?
YES - Replace 4WAS front actuator. Removal And Installation.
NO - GO TO 2.
2.CHECK INFORMATION
With CONSULT-III
1. Check the "DATA MONITOR" value of each DTC detected with the self-diagnosis function. 4WAS Main Control Unit.
2. Perform self-diagnosis for "4WAS(FRONT)".
Is each data the standard value?
YES - GO TO 1.
NO - Replace 4WAS front control unit. 4WAS Front Control Unit.
- Before replacing 4WAS front control unit, record the self-diagnosis results (history). SEE Special Repair Requirement.




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

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