Wiper/Washer Switch (Combination Switch Control Unit) Input Test

Wiper/Washer Switch (Combination Switch Control Unit) Input Test

1. Before troubleshooting the wiper/washer system, troubleshoot the B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

2. Remove the steering column covers Steering Column Removal/Installation.

3. Remove the self-tapping screws, then disconnect the 8P connector (A) from the wiper/washer switch (B).





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 connector still disconnected, 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, go to step 6.





6. Reconnect the 8P connector to the wiper/washer switch, and do these input tests at the connector.

- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the wiper/washer switch (combination switch control unit).