Rear MICU Input Test

Rear MICU Input Test

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

1. Turn the ignition switch to LOCK (0).
2. Remove the left rear trim.
3. Disconnect rear fuse/relay box connectors B (34P) and C (42P).






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. With the connectors still disconnected, make these input tests at the connectors.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 6.






6. Reconnect the connectors, and make these input tests at the connectors.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the rear MICU must be faulty, replace the rear fuse/relay box.