Keyless/Power Door Locks/Security System MICU Input Test

Keyless/Power Door Locks/Security System MICU Input Test

NOTE:

- Before testing, check the No. 1 (7.5 A), No. 20 (15 A), No. 22 (7.5 A), No. 27 (30 A), No. 35 (10 A), No. 36 (15 A), No. 49 (15 A), No. 50 (15 A), and No. 60 (50 A) fuses in the under-dash fuse/relay box.

- There are two pairs of fuses in the same circuit (No. 35 and No. 49 fuses, No. 36 and No. 50 fuses). If one of the fuses is blown, check the another fuse in the same circuit. If necessary, replace the damaged fuse(s).

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

2. Remove the fuse access panel. Dashboard Fuse Access Panel Removal/Installation

3. Disconnect under-dash fuse/relay box connectors A, B, C, E, F, K, M, N, Q, and W.
NOTE: All connector views are shown from 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 these input tests at the following 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.

*: With security

6. Reconnect the connectors to the under-dash fuse/relay box, and do these input tests at the following 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. Under-Dash Fuse/Relay Box Removal And Installation (Canada Models)

*: With security

*1: With security

*2: With driver's door lock switch