Troubleshooting Hints - Interior Lights Dimming

Perform before beginning System Diagnosis
1. Check Fuse 7 by turning the Headlight Switch to "PARK" and observing Park Lights.
2. If none of the Instrument Panel lights come on and the Park Lights operate properly, check Fuse 13.
3. If only one light does not come on, check bulb, connections, and related wiring for an open.
4. If Interior Lights come on but do not dim, replace Light Switch.
^ Refer to Instrument panel, Gages and Warning Devices for Instrument Panel access. Instrument Panel, Gauges and Warning Indicators
^ Refer to System Diagnosis. System Diagnosis
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove "GOOD" in a continuity/voltage check (Refer to "Diagnostic Aids/General Troubleshooting Procedures,") Diagnostic Aids
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer to "Diagnostic Aids/General Troubleshooting Procedures,") Diagnostic Aids