Daytime Running Lamp: Description and Operation

DRL Control Module:

The Daytime Running Lamp (DRL) system consists of a DRL module that is located behind the front bumper and is mounted to the radiator support.

PRINCIPLES OF OPERATION
The DRL system operates the low beam headlamps at a reduced intensity. The DRL module supplies pulse width modulated voltage, approximately 75%-92% of battery voltage, to the low beam headlamps when these conditions are met.
^ The parking brake control is released.
^ The high beam headlamps are disabled.
^ The ignition switch is in the RUN position.

The DRL module remains enabled when the low beam headlamps are turned on.