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 Lamps 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 to General Troubleshooting Procedures). Diagnostic Aids

^ Refer to System Diagnosis.