Automatic Lighting Control Unit Input Test

Automatic Lighting Control Unit Input Test

1. Before testing the automatic lighting control functions, troubleshoot the multiplex integrated control system using B-CAN System Diagnosis Test Mode A.
2. Remove the driver's dashboard lower cover.
3. Disconnect the 14P connector (A) from the automatic lighting control unit (B).






4. 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 5.

5. Reconnect the automatic lighting control unit connector, then make these input tests at the connector.

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the inputs test prove OK, go to step 6.






6. Connect a voltmeter and jumper wires as shown, then turn the ignition switch ON (II) and make the input test at the connector.

- If 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.