Brake Lamp Relay: Description and Operation

DESCRIPTION

The exterior lighting system for this model include the following components:
^ Backup Lamps
^ Brake Lamps
^ Daytime Running Lamps
^ Front Fog Lamps
^ Hazard Warning Lamps
^ Headlamps
^ Park Lamps
^ Turn Signal Lamps
Other components of the exterior lighting system for this model include:
^ Backup Lamp Switch
^ Brake Lamp Switch
^ Front Control Module
^ Front Fog Lamp Relay Relay Box
^ Hazard Switch
^ Multi-Function Switch
^ Park Lamp Relay Relay Box
^ Trailer Tow Connectors
Some of the interior and exterior lighting functions are governed by the front control module. The headlamp, dome, and door ajar switches provide signals to the instrument cluster. The instrument cluster sends a J1850 message to the front control module to enable the necessary components for illumination. Hard wired circuitry connects the exterior lighting system components to the electrical system of the vehicle. Refer to the appropriate wiring information