Door Multiplex Control Unit Input Test
Door Multiplex Control Unit Input TestNOTE: Check the No. 22 (120 A), No. 23 (50 A), No. 15 (40 A) fuse in the under-hood fuse/relay box before troubleshooting.
1. Before troubleshooting the multiplex integrated control system, troubleshoot the B-CAN System Diagnosis Test mode A.
2. Turn the ignition switch OFF.
3. Remove the power window master switch.
4. Disconnect the 23P connector from the power window master switch.
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 the test indicates a problem, find and correct the cause, then recheck the system.
- If the input tests prove OK, go to step 7.
7. Reconnect the connector to the door multiplex control unit, 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, the door multiplex control unit must be faulty, replace the power window master switch.
