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.
2. Remove the driver's dashboard undercover, and the driver's dashboard lower cover.
3. Remove the steering column covers.
4. Disconnect the 8P connector (A) from the wiper/washer switch (B).






5. 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 6.

6. With the connector still disconnected, make 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, go to step 7.






7. Reconnect the 8P connector to the wiper/washer switch, and make 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).