C1203

C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

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. PERFORM DTC CONFIRMATION

With CONSULT
1.Start the engine and drive at 30 km/h (19 MPH) or more for approximately 1 minute.
2.Perform self-diagnosis for "ALL MODE AWD/4WD".
Is DTC "C1203" detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

With CONSULT
Perform self-diagnosis for "ABS".
Is any DTC detected?
YES- Check the DTC. Refer to "DTC Index" A L L Diagnostic Trouble Codes ( DTC ).
NO- GO TO 2.

2. PERFORM SELF-DIAGNOSIS

With CONSULT
1.Erase self-diagnostic results for "ALL MODE AWD/4WD".
2.Start the engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
3.Stop the vehicle.
4.Check that ABS warning lamp turns OFF.
Does ABS warning lamp turn OFF?
YES- GO TO 3.
NO- Refer to "Component Function Check" ABS Warning Lamp.

3. CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.
Is inspection result normal?
YES- After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC "C1203"
is detected, Replace AWD control unit. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace error-detected parts.
Revision: March 20122013 Infiniti JX