Flow of Diagnosis

1. Verify the original concern by operating the Daytime Running Lamp (DRL) system to duplicate the concern.
2. Inspect to determine if one of the mechanical or electrical concerns apply:

Mechanical
- Damaged lamps.

Electrical
- Open instrument panel fuse.
- Damaged connectors.
- Circuitry open/shorted.
- Damaged DRL module.
- Damaged parking brake switch.
- Fuses.

3. If the concern(s) remains after the inspection, determine the symptom(s) and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures