RAM 3500 HD Truck 2WD L6-6.7L DSL Turbo (2008)
Power Door Lock Switch: Testing and Inspection
Diagnosis and Testing
WINDOW/LOCK SWITCH
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 Totally Integrated Power Module (TIPM). If all of the LED's are inoperative in
the DDM, be certain to diagnose the power window system before replacing the switch unit. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures . 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 wiring information.
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 chart to determine if the continuity is correct for the suspect switches
in each switch position. If not OK, replace the faulty DDM as required.
