Automatic Lighting Control Unit Input Test/Replacement

Automatic Lighting Control Unit Input Test/Replacement

NOTE: Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Turn the ignition switch to LOCK (0).

2. Disconnect the 14P connector (A) from the automatic lighting control unit (B).





3. Inspect the connector and socket terminals to be sure they are all making good contact.

- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 4.

4. Reconnect the automatic lighting control unit connector, then do the following input tests.

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If the input test proves OK, replace the automatic lighting control unit.