Section 17-04: Lamps, Daytime Running
1994 Mustang Workshop Manual
DIAGNOSIS AND TESTING
Inspection and Verification
Verify the vehicle owner's original concern by operating the DRL System to duplicate the vehicle owner's concern.
Inspect to determine if one of the following mechanical or electrical concerns apply:
Mechanical
Electrical
Damaged lamps.
Open instrument panel Fuse 1 (15A).
Open instrument panel Fuse 16 (20A).
Damaged connectors.
Circuitry open/shorted.
Damaged ignition switch .
Damaged daytime running lights control .
Damaged parking brake signal switch and bracket .
If the concern(s) remains after the inspection, determine the symptom(s) and proceed to the following Symptom Chart.