Daytime Running Lamps

The Daytime Running Lamp (DRL) logic is not separately replaceable from the I/P cluster.

The purpose of DRL is to make the vehicle more visible during daylight hours and at dusk and dawn. This is achieved by having the high beam headlamps On at half intensity. The half intensity of the high beam headlamps is accomplished by switching the DRL relay ON, which connects the high beam headlamps in series.

The DRL logic controls the Hi Beam telltale, DRL On telltale and the DRL relay. The DRL relay is used to provide control of the high beam headlamps.

When the park brake is applied an input is provided to the DRL logic. This signals the DRL logic to turn DRL off. DRL will also turn off if the low beam headlamps are turned on.