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.RECHECK DTC
With CONSULT-III
1. Turn the ignition switch from OFF to ON.
2. Perform self-diagnosis for "4WAS(FRONT)".
Is DTC "C1655" detected?
YES - Proceed to diagnosis procedure. SEE 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-III
1. Connect 4WAS front control unit harness connector.
2. Perform self-diagnosis for "4WAS(FRONT)".
Is DTC "C1622" detected?
YES - Proceed to diagnosis procedure. C1621.
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".