Lamp Control Module: Description and Operation

LIGHTING CONTROL MODULE






This vehicle uses a Lighting Control Module (LCM). This eliminates the electronic interference and heat associated with the thermo-electric devices used previously.

The Lighting Control Module (LCM) is connected on the Standard Corporate Protocol (SCP) communication network. The LCM controls both interior and exterior lighting, anti-theft functions and warning chimes.

The LCM:
^ Is a microprocessor based module that controls several vehicle subsystems.
^ Responds to electrical input signals from various switches, sensors and external modules.
^ Is located on the LH side of the instrument panel.
^ Subsystem functions include:
^ Headlamps with autolamps.
^ Stoplamps.
^ Turn signal lamps/hazard flasher lamps.
^ Cornering lamps.
^ Parking lamps.
^ Backup lamps.
^ Daytime running lamps (DRL).
^ Courtesy lamps.
^ Demand lamps.
^ Battery saver.
^ Backlighting.
^ Interfaces with the Driver Door Module (DDM) for illuminated entry and anti-theft systems.