Lighting Control Module (LCM)

The LCM monitors the inputs and provides outputs and diagnostic information for the following multiple vehicle systems, including the:

• Battery saver and control backlighting
• Brake shift interlock
• Exterior lighting
• Interior lighting
• Perimeter alarm

The LCM receives a voltage input from the brake pedal position switch and provides power to the brake shift interlock solenoid. For the exterior lighting, it receives inputs and provides outputs to control the exterior, interior (including the cluster and panel illumination) lighting systems on the vehicle. The perimeter alarm is controlled by the LCM, which receives inputs from the perimeter alarm switches, which consists of the hood switch, the luggage compartment disarm switch and the door disarm switch (driver). The DDM also receives inputs (from the door ajar switches) and provides this information to the LCM so it can arm the alarm when commanded.