Troubleshooting Hints - Gauges and Warning Indicators

1. Check IGN 1 Fuse. If open, check circuit 39 for a short to ground.
2. Check PRNDL Fuse. If open, check circuit 1020 for a short to ground.
3. Check any inoperative indicator bulb.
4. Make sure grounds G113, G200, G301 and G302 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 (refer to General Troubleshooting Procedures). Diagnostic Aids
^ Refer to System Diagnosis.