Download 1. Disable air bag system. See AIR BAG RESTRAINT SYSTEMS article. Turn ignition off. Remove instrument panel lower left cover. Remove left knee bolster. Remove underdash fuse/relay field, located close to left kick panel. 2. Remove driver’s multiplex control unit from underdash fuse/relay box. Guarantee connector and socket terminals are okay. Repair as mandatory and retest system. If connector and terminals are okay, use a DVOM to perform management unit enter test. See Fig. 9 . If an enter test signifies an issue, find and proper trigger and retest system. If all input check results are okay, change faulty multiplex control unit.WIPER/WASHER SWITCH Elimination & Set up Disable air bag system. See AIR BAG RESTRAINT SYSTEMS article. Disconnect negative battery cable. Remove dash lower trim cowl and knee bolster. Take away steering column covers. Disconnect wiper/washer change connectors. Take away 2 screws and wiper/washer switch. To install, reverse removal procedure.