Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

MICU Input Test

1. Turn the ignition switch OFF.
2. Remove the left kick panel.




3. Disconnect the driver's under-dash fuse/relay box connectors E, F, R, and S.

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 under-dash fuse/relay box connectors and MICU connectors still disconnected, 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 input tests prove OK, go to step 6.




6. Reconnect the under-dash fuse/relay box connectors and MICU connectors, 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 input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box assembly.