Multiplex Control Unit (Door)

NOTE:
- Before testing, go to the Troubleshooting Guide. Initial Inspection and Diagnostic Overview Be sure to go through self-diagnosis function modes 1 and 2.
Self-Diagnosis Function (Mode 1)
Self-Diagnosis Function (Mode 2)
- All connector views are from the wire side of female terminals unless otherwise noted.

1. Remove the driver's door panel, and disconnect the 20P connector from the door unit.




2. 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, make the following 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 power window master switch must be faulty; replace it.




Disconnect the connectors from the unit




Reconnect the connector to the door unit