Troubleshooting Hints - Interior Lights

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check Trunk Compartment Fuse Block COMFORT Fuse by visual inspection.
2. Check Engine Compartment Fuse/Relay Center INT LPS Fuse by visual inspection.
3. If the front cigar lighter is inoperative, check Engine Compartment Fuse/Relay Center CIG LTR 1 Fuse.
4. If rear door cigar lighters are inoperative, check Engine Compartment Fuse/Relay Center CIG LTR 2 Fuse.
5. If console cigar lighters are inoperative, check Engine Compartment Fuse/Relay Center CIG LTR 1 Fuse.
6. Check that grounds G201, G203, G205, G302, G400, G401, and G402 are clean and tight.
7. If only one lamp does not light, check bulb, socket and related wiring (see schematic).
8. Before component replacement, check that system connections are clean and tight.
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.