Troubleshooting Hints

TRY FOLLOWING CHECKS BEFORE DOING SYSTEM DIAGNOSIS.
1. If courtesy lamps do not light, check I/P Fuse Block Fuse 6A and Relay Center Fuse 2.
2. If only one interior lamp does not operate, check bulb, socket and related wiring.
3. If interior lamps light when a door is opened, but not when Head/Park Lamp Switch is operated, check WHT (156) wiring for an open; check in-line Connector C200 (terminal B6) and Head/Park Lamp Switch Connectors C1 and C3 for proper terminal contact; if all OK, replace Head/Park Lamp Switch (see schematic).
^ Refer to System Check for a guide to normal operation. System Check