Troubleshooting Hints

Before checking the daytime running lamps system, do the following:
1. Place park brake in OFF position and ignition switch to RUN.
2. Verify condition of DRL/FOG and GAUGES Fuses. If open, locate and repair source of overload. Then replace fuse.
3. Place Headlamp Switch in ON and Headlamp Dimmer Switch in HIGH BEAM. If HIGH BEAM headlamp(s) are inoperative, refer to High Beam Headlamps Inoperative diagnostic chart.

If HIGH BEAM headlamps operate, place Headlamp Switch in OFF and use the following diagnostic procedure.