P1813

P1813 4WD MODE SWITCH

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. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Turn the ignition switch OFF to ON.
2.Turn the 4WD shift switch AUTO to 4H to 4L to 4H to AUTO.
3.Perform self-diagnosis for "ALL MODE AWD/4WD".
Is DTC "P1813" detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK TRANSFER SHIFT SWITCH

Check 4WD switch assembly. Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 2.
NO- 4WD shift switch is malfunctioning. Replace 4WD switch assembly. Refer to "Removal and Installation" 4WD Mode Switch.

2. CHECK 4WD SHIFT SWITCH CIRCUIT (1)

1.Disconnect transfer control unit harness connector.
2.Check the continuity between transfer control unit harness connector and 4WD switch assembly harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK 4WD SHIFT SWITCH CIRCUIT (2)

Check the continuity between 4WD switch assembly harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.

4. CHECK TERMINALS AND HARNESS CONNECTORS

- Check transfer control unit pin terminals for damage or loose connection with harness connector.
- Check 4WD switch assembly pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Replace transfer control unit. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace error-detected parts.


Component Inspection


1. CHECK 4WD SHIFT SWITCH

1.Turn the ignition switch OFF.
2.Remove 4WD switch assembly. Refer to "Removal and Installation" 4WD Mode Switch.
3.Check the continuity between 4WD switch assembly harness connector terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace 4WD switch assembly. Refer to "Removal and Installation" 4WD Mode Switch.