Door Module: Testing and Inspection

The Light-Emitting Diode (LED) illumination lamps for all of the Driver Door Module (DDM) power window, power lock, and power mirror switches receive battery current through the power window circuit breaker in the Junction Block (JB). If all of the LEDs are inoperative in the DDM, be certain to diagnose the power window system before replacing the switch unit. (Refer to POWER WINDOWS - DIAGNOSIS AND TESTING). If only one LED in the DDM is inoperative, replace the faulty DDM. If the driver side front door power window operates in a normal manner, but the Auto-Down feature is inoperative, replace the faulty DDM.
1. Disconnect and isolate the battery negative cable. Remove the DDM from the door trim panel. Disconnect the door wire harness connectors for the DDM from the DDM connector receptacles.

Fig.2 Driver Door Module Connector C1 Receptacle:

Fig.3 Driver Door Module Connector C2 Receptacle:

Driver Door Module Switch Test (Part 1 Of 2):

Driver Door Module Switch Test (Part 2 Of 2):

2. Test the DDM switch continuity. See the Driver Door Module Switch Tests chart to determine if the continuity is correct for the suspect switches in each switch position and/or. If not OK, replace the faulty DDM as required.