Symptom 1: ON/OFF Switch Does Not Switch ON , ON/OFF Switch Does Not Switch OFF

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

*1: The ICC system display in the combination meter does not illuminate.
*2: The ICC system display in the combination meter remains powered.

CHECK ON/OFF SWITCH
With CONSULT-II
- With "DATA MONITOR" on the CONSULT-II, check that ON/OFF switch operates normally.
OK or NG
- OK: GO TO 2.
- NG: GO TO .
CHECK ICC UNIT CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ICC unit harness connectors.
3. Check connector housing for disconnected, loose, bent, and collapsed terminals.
OK or NG
- OK: GO TO 3.
- NG:
  - Poor connector connection.
  - Repair ICC unit connector. Erase DTC and perform ICC system running test. Refer to "ICC SYSTEM RUNNING TEST ". Then perform self-diagnosis of ICC system again.
DIAGNOSIS CHECK
With CONSULT-II
- Perform self-diagnosis with CONSULT-II. Is "CAN COMM CIRCUIT" indicated?
YES or NO
- YES: Refer to "DTC 20 CAN COMM CIRCUIT ".
- NO: Refer to "DTC 46 OPERATION SW CIRC ".