Ignition Switch Is ON

With the ignition switch in the ON position or in the START position, voltage is applied to the DRL control module through the IG-COIL fuse. The DRL control module is permanently grounded to G201.

For the daytime running lamps to work correctly, the following conditions must occur:
^ The parking brake is disengaged.
^ The DRL control module does not receive a ground signal from the generator. A ground signal from the generator indicates that the generator is not charging the battery.
^ The light switch is in the OFF position or in the PARK position.

When the parking brake is engaged, the park brake switch closes providing a ground to the DRL module. This disables the DRL operation.

When the generator is not running, a switch in the generator closes providing a ground to the DRL module. This disables the DRL operation.

When the light switch is in the HEAD position, a path to G201 is provided to the coil of the light 2 relay and to the DRL control module to G201. This disables the DRL operation.

When all of the listed conditions for the DRL operation occur, the DRL control module provides a ground for the low beam filaments in the headlamps through the DRL control module to G201. Because the headlamp fuses supply voltage to the headlamps at all times, the intensity of the low beam filaments is 80 percent.

The DRL control module also provides ground to the daytime running lamps indicator when the DRL is operating. Because the IG-COIL fuse applies voltage to the indicator, the indicator will light.