Grand Cherokee 2WD V8-5.2L VIN Y (1998)
Power Door Lock Switch: Description and Operation
SYSTEM OPERATION
Power Lock Switch
The power locks are controlled by a two-way switch that is integral to the Driver Door Module (DDM) and the Passenger Door Module (PDM)
mounted in the trim panel of its respective front door. Each switch is illuminated by a light-emitting diode when the ignition switch is turned to the
On position. The power lock switch provides a lock or unlock signal to the door module circuitry.
The power lock switches and their lamps cannot be repaired. If the switches are damaged or faulty, the entire PDM or DDM unit must be replaced.
