Diagnostic Procedure
- CHECK TRANSFER CONTROL UNIT POWER SOURCE
- Turn ignition switch to OFF position and perform self-diagnosis again.
Refer to TROUBLE DIAGNOSIS WITHOUT CONSULT-II and TROUBLE DIAGNOSIS WITH CONSULT-II .
- Turn ignition switch to OFF position.
- Disconnect transfer control unit harness connector E143.
- Check voltage between transfer control unit harness connector E143 terminal 47 (W) and ground.
Voltage : Battery voltage
OK or NG
- OK: GO TO 2.
- NG: Check the following.
- No. 53 fuse (20A)
- Harness continuity between fuse and transfer control unit
- Turn ignition switch to OFF position and perform self-diagnosis again.
- PERFORM SELF-DIAGNOSIS AGAIN
After driving for a while, perform self-diagnosis again.
Refer to TROUBLE DIAGNOSIS WITHOUT CONSULT-II and TROUBLE DIAGNOSIS WITH CONSULT-II .
OK or NG
- OK: Inspection End.
- NG:
- Perform transfer control unit input/output signal inspection. Refer to TRANSFER CONTROL UNIT INSPECTION TABLE .
- If NG, recheck transfer control unit pin terminals for damage or loose connection with harness connector.