FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Exterior Lighting Module: Description and Operation



Lighting Control Module (LCM)

The LCM eliminates the electronic interference and heat associated with the thermoelectric devies used previously. The LCM is a microprocessor-based module that controls several vehicle subsystems. It responds to electrical input signals from various switches, sensors, and external modules.

LCM exterior lighting subsystem functions include:

- Headlamps with autolamps (if equipped)
- Turn signal lamps/hazard flasher lamps
- Cornering lamps
- Parking lamps
- Battery saver