C1655

C1655 4WAS FRONT DRIVER

Description

- It perform control inside 4WAS front control unit.
- The power supply for 4WAS front motor (3-phase motor).


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. RECHECK DTC

With CONSULT
1.Turn the ignition switch from OFF to ON.
2.Perform 4WAS front control unit self-diagnosis.
Is DTC "C1655" detected?
YES- Proceed to diagnosis procedure. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK 4WAS FRONT MOTOR GROUND

1.Turn the ignition switch OFF.
2.Disconnect 4WAS front control unit harness connector.
3.Check the continuity between 4WAS front control unit harness connector and the ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace the harnesses and connectors.

2. PERFORM SELF-DIAGNOSIS (4WAS FRONT CONTROL UNIT)

With CONSULT
1.Connect 4WAS front control unit harness connector.
2.Perform 4WAS front control unit self-diagnosis.
Is DTC "C1622" detected?
YES- Check the error system.
NO- Replace 4WAS front control unit. Exploded View.


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".

AFTER REPLACING 4WAS FRONT CONTROL UNIT

- Perform 4WAS front actuator adjustment after replacing 4WAS front control unit. Special Repair Requirement (Pattern 3).