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
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. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK 4WAS FRONT LOCK SOLENOID VALVE (LOCK STRUCTURE)

With CONSULT
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
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). Refer to
.


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".