General Description

Exterior lighting is provided by the headlamps, front fog lamps, rear lamp clusters and license plate lamps. Vehicles also have side marker lamps and a High Mounted Stop Lamp (HMSL).

The Body Processor Module (BPM) and Security and Locking Control Module (SLCM) operate the lamps in response to control inputs from various switches and the SCP - REVERSE GEAR SELECTED message from the major instrument cluster. A lamp control module monitors the bulbs of the tail, stop (not HMSL) and rear side marker. The BPM monitors all the turn indicator bulbs.