Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS:
1. Check I/P Fuse 31. If it is open, check CKT 240 for a short to ground.
2. Check I/P Fuse 41. If it is open, check CKT 308 for a short to ground and Refer to Exterior Lights for Diagnosis of Park Lamps. Testing and Inspection
3. Make sure that G102 and G106 are clean and tight.
4. Check bulbs and sockets for damage or corrosion.
^ 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 refer Diagnostic Aids. Diagnostic Aids
^ Refer to System Diagnosis. System Diagnosis