Exterior Lights (MICU) Input Test

Exterior Lights (MICU) Input Test

NOTE: Before doing the input tests, check the No. 1 (15 A), No. 5 (10 A), No. 15 (7.5 A), No. 22 (7.5 A), No. 24 (10 A), No. 28 (20 A), No. 29 (10 A), No. 32 (10 A), No. 34 (10 A), No. 48 (10 A), No. 51 (10 A), and No. 60 (IGN) (50 A) fuses in the under-dash fuse/relay box.

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

2. Remove the fuse access panel, and remove the driver's dashboard lower cover Driver's Dashboard Lower Cover Removal/Installation.

3. Disconnect under-dash fuse/relay box connectors A, B, C, K, M, N, Q, S, and W.

NOTE: All connector views are wire side of female terminals.






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, do the following input tests:

- 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 7.









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

7. Reconnect the connectors to the under-dash fuse/relay box, and do the following input tests:

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box:
- USA models Under-Dash Fuse/Relay Box Removal And Installation (Except Canada Models)
- Canada models Under-Dash Fuse/Relay Box Removal And Installation (Canada Models)