Diagnosis And Testing - Driver Door Module

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 Integrated Power Module (IPM). 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 ). 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. refer to the appropriate SYSTEM WIRING DIAGRAMS article.

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.
2. Test the DDM switch continuity. See the DRIVER DOOR MODULE SWITCH TESTS  table to determine if the continuity is correct for the suspect switches in each switch position (Fig 1 ) and/or (Fig 2 ). If not OK, replace the faulty DDM as required.
   Fig 1: Identifying Driver Door Module Connector C1 Receptacle

   Courtesy of DAIMLERCHRYSLER CORP.
   Fig 2: Identifying Driver Door Module Connector C2 Receptacle

   Courtesy of DAIMLERCHRYSLER CORP.
   DRIVER DOOR MODULE SWITCH TESTS
   
   

   POWER LOCK SWITCH
   SWITCH POSITION	RESISTANCE BETWEEN CONNECTOR C-1 PINS 7 & 11
   NEUTRAL	10 KILOHMS +/- 1%
   LOCK	820 OHMS +/- 5%
   UNLOCK	330 OHMS +/- 5%
   POWER MIRROR SWITCH
   SWITCH POSITION	CONTINUITY BETWEEN PINS OF CONNECTOR C-2
   LEFT MIRROR SELECTED
   UP	PINS 1 & 3
   DOWN	PINS 2 & 3
   RIGHT	PINS 2 & 3
   LEFT	PINS 3 & 6
   RIGHT MIRROR SELECTED
   UP	PINS 3 & 7
   DOWN	PINS 2 & 3
   RIGHT	PINS 2 & 3
   LEFT	PINS 3 & 4
   POWER WINDOW SWITCH
   SWITCH POSITION	CONTINUITY BETWEEN PINS OF CONNECTOR C-1
   NEUTRAL	PINS 1 & 8, PINS 2 & 8, PINS 3 & 8, PINS 4 & 8, PINS 5 & 8, PINS 6 & 8, PINS 8 & 10, PINS 8 & 12
   LEFT FRONT UP	PINS 5 & 9
   LEFT FRONT DOWN	PINS 9 & 12
   RIGHT FRONT UP	PINS 3 & 9
   RIGHT FRONT DOWN	PINS 6 & 9
   LEFT REAR UP	PINS 4 & 9
   LEFT REAR DOWN	PINS 9 & 10
   RIGHT REAR UP	PINS 2 & 9
   RIGHT REAR DOWN	PINS 1 & 9
   POWER WINDOW LOCKOUT SWITCH
   SWITCH POSITION	CONTINUITY BETWEEN
   OFF (SWITCH BUTTON RAISED - NOT DEPRESSED)	PIN 9 OF CONNECTOR C-1 & PIN 8 OF CONNECTOR C-2