Daytime Running Lamps

The Daytime Running Lamps (DRL) control module is designed to automatically operate the exterior lights, depending on the outside light conditions. The DRL control module operates in 2 modes:
^ The day mode allows the two front turn signal lamps to be on and non-flashing.
^ The night mode allows the following components to be on:
- Low beam headlamps
- Front marker
- Park lamps
- Tail lamps

The DRL control module operates in the night mode when the DRL ambient light sensor senses darkness. When this happens, the night mode contacts close and voltage is applied to the headlamps and other exterior lights through the same circuit path as when the headlamp switch is in the HEAD position.

The DRL module turns off the headlamps when the engine stalls with the DRL in the night mode. The marker, park and tail lamps are on while the engine is being cranked. The headlamp switch operates as usual.