Wiper/Washer Switch (Combination Switch Control Unit) Input Test
Wiper/Washer Switch (Combination Switch Control Unit) Input Test1. Before troubleshooting the wiper/washer system, troubleshoot the B-CAN System Diagnosis Test Mode A.
2. Remove the steering column covers.
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, 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).
6. Reconnect the 8P connector to the wiper/washer switch, turn the ignition switch ON (II) 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, go to step 7.
7. Disconnect the 8P connector from 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).