Keyless/Power Door Locks/Security System (MICU) Input Test

Keyless/Power Door Locks/Security System (MICU) Input Test

NOTE:
* Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors.
* Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK.
* Before testing, make sure the No. B5 (10 A), No. B8 (15 A), No. B9 (10 A), No. B15 (10 A), No. B30 (10 A), No. B32 (15 A), No. B33 (15 A), and No. B41 (20 A) fuses in the under-dash fuse/relay box are OK.
* Before testing, make sure the headlights, parking lights, side marker lights, taillights, and horn(s) all work properly.
* There are two pairs of fuses in the same circuit (No. B8 and No. B32 fuses, No. B9 and No. B33 fuses, and No. B15 and No. B30 fuses). If one fuse is blown, make sure to check the other fuse in the same circuit. If necessary, replace the blown fuse(s).

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

2. Disconnect under-dash fuse/relay box connectors B, C, D, N, P, R, S, W, and X Under-Dash Fuse/Relay Box Removal and Installation.

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




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 are OK, go to step 4.

4. 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 5.

NOTE: These are door lock actuator operation tests for keyless entry.





*: Use a fused jumper wire with an appropriate amperage fuse.

5. Reconnect the connectors to the under-dash fuse/relay box; 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 Under-Dash Fuse/Relay Box Removal and Installation.

















*1: With security
*2: If the factory-installed audio unit is removed from the vehicle, this voltage will be between 10-12 V.