Troubleshooting Hints - Interior Lights
TRY FOLLOWING CHECKS1. If vehicle is equipped with Illuminated Entry, refer to Illuminated Entry for diagnosis. Testing and Inspection
2. If Courtesy Lamps, Vanity Mirrors and Luggage Compartment Lamp do not light, check I/P Fuse Block Fuse 6A.
3. If only one interior lamp does not operate, check bulb, socket and related wiring.
4. Check "P" fuse Block Fuses 1D, 4A, 8D, 9A, 9C and 9D (Buick C Car) by visual inspection.
5. Check Relay Center Fuse 2 by visual inspection.
6. Check that grounds G104, G202, G203 and G400 are clean and tight.
7. Before component replacement, check for poor connections at related component and in-line harness connector terminal connections. Refer to General Troubleshooting Hints. Diagnostic Aids