Door Multiplex Control Unit
Remove driver's door trim panel enough to gain access to door multiplex control unit connector. Turn ignition off. Disconnect door multiplex control unit 20-pin harness connector. See Fig 1 . Check connector terminals and contacts. Repair as necessary and retest system. If connector terminals and contacts are okay, perform input tests. See Fig 1 . If test results are as specified, replace power window master switch. See REMOVAL & INSTALLATION .