Wiper Control Module: Testing and Inspection

Rear Window Wiper Control Unit Input Test

1. Remove the left rear side trim panel Interior Trim Removal/Installation - Rear Side Area.

2. Disconnect the 8P connector (A) from the rear window wiper control unit (B).





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, do the following input test:

- If the test indicates a problem, find and correct the cause, then recheck the system.
- If the input test proves OK, go to step 5.





5. Reconnect the connector to the control unit, 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, the control unit must be faulty; replace it.