Honda CR-V: MICU Input Test

NOTE: Before testing, troubleshoot the B-CAN System Diagnosis Test Mode A.

1. Turn the ignition switch OFF.

2. Disconnect the under-dash fuse/relay box connectors E, F, G, K, R, and T.

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

UNDER-DASH FUSE/RELAY BOX CONNECTOR E (42P)

UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)

UNDER-DASH FUSE/RELAY BOX CONNECTOR G (21P)

UNDER-DASH FUSE/RELAY BOX CONNECTOR K (8P)

UNDER-DASH FUSE/RELAY BOX CONNECTOR R (20P)

UNDER-DASH FUSE/RELAY BOX CONNECTOR T (34P)

3. 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 4.

4. With the connector still disconnected, make these input tests at the appropriate 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 5.

5. Reconnect the connectors to the under-dash fuse/relay box, 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 MICU must be faulty; replace the under-dash fuse/relay box.

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