Turn Signal/Hazard Warning Lights (MICU) Input Test

Turn Signal/Hazard Warning Lights (MICU) Input Test

NOTE: Before testing, check the No. B1 (15 A), No. B22 (7.5 A), and No. B23 (10 A) fuse in the under-dash fuse/relay box.

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

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

3. Disconnect the under-dash fuse/relay box connectors A, B, D, F, N, Q, R, Y, and AD.

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 6.





6. 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 (USA Models)
- Canada models Under-Dash Fuse/Relay Box Removal and Installation (Canada Models)