Circuit Operation

Voltage is applied to the Daytime Running Lights Relay at all times through the ORN (240) wire from the DRL Fuse and when the Ignition Switch is placed in RUN through the PNK/BLK (39) wire from the GAGES Fuse. The DRL relay provides voltage to the LH High Beam through the DK BLU/WHT (593) wire. This wire also becomes the ground wire when the Headlamps are operating normally.

Voltage is applied to the Daytime Running Lights Module when the Ignition Switch is placed in RUN through the PNK/BLK (39) wire and the GAGES Fuse. When the Ignition Switch is placed in RUN, the voltage from the DRL relay is provided a ground path through the LT GRN (11) wire through the DRL module. This enables the DRL relay to provide voltage to the High Beam Headlamps in series causing the headlamps to share the voltage resulting in the headlamps operating at halt intensity.

The DRL module will not enable the DRL relay if the Headlight Switch is placed in the ON position or the Park Brake Switch is ON.

The High Beam Indicator also receives voltage from the DRL module when the Headlight Dimmer Switch is in the High position.