Diesel Data: Automotive Repair

Relay Control Module Input Test




Relay Control Module Input Test

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

2. Disconnect under-hood fuse/relay box connector K (10P).





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. Reconnect the connector to the under-hood fuse/relay box, and do these input tests at the following connector.

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the relay control module must be faulty, replace the under-hood fuse/relay box.