RAM 3500 Truck 4WD V8-5.9L VIN Z LDC (2000)
Door Switch: Description and Operation
DOOR JAMB SWITCH
The door jamb switches are mounted to the door hinge pillars. The switches close a path to ground for the Central Timer Module (CTM) when a
door is opened, and open the ground path when a door is closed.
The door jamb switches cannot be repaired and, if faulty or damaged, they must be replaced.
DRIVER DOOR JAMB SWITCH
The driver door jamb switch is mounted to the driver side door hinge pillar. The switch closes a path to ground for the Central Timer Module
(CTM) when the driver door is opened, and opens the ground path when the driver door is closed.
The driver door jamb switch cannot be repaired and, if faulty or damaged, it must be replaced. Refer to Door Jamb Switch in the Removal and
Installation of Vehicle Theft/Security Systems for the service procedures.
