Power Distribution Module: Testing and Inspection

Relay Control Module Input Test

NOTE: Before testing the relay control module, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

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

2. Remove the under-hood fuse/relay box Under-Hood Fuse/Relay Box Removal and Installation.

3. Disconnect under-hood fuse/relay box connectors D (10P) and E (14P).





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, 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, replace the relay control module.