C1668

C1668 LOCK HOLDER GAP DETECT





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. Turn the ignition switch from OFF to ON.
2. Perform 4WAS front control unit self-diagnosis.
Is DTC "C1668" detected?
YES - Proceed to diagnosis procedure. Refer to C1668.
NO - INSPECTION END




Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS (4WAS FRONT CONTROL UNIT)
With CONSULT-III
1. Start the engine.

CAUTION:
Stop the vehicle.
2. Perform 4WAS front control unit self-diagnosis. Check that DTC "C1668" is detected.

CAUTION:
- Replace 4WAS front actuator when the diagnosis history remains.
- Never repair the malfunctioning part in 4WAS front actuator adjustment without replacing 4WAS front actuator.
- Replace 4WAS front actuator.




Special Repair Requirement

AFTER REPLACING 4WAS FRONT ACTUATOR
- Perform 4WAS front actuator adjustment after replacing 4WAS front actuator. Refer to Special Repair Requirement (Pattern 2) Special Repair Requirement (Pattern 3), "4WAS FRONT ACTUATOR NEUTRAL POSITION ADJUSTMENT : Special Repair Requirement (Pattern 2)".