Troubleshooting Hints - Gauges and Warning Indicators

1. Check IGN Fuse and G2OO by noting normal operation of the Heater and A/C Control Assembly.
2. Check GAUGES A/C Fuse for open. If open, check for short to ground through CKT 39.
^ 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.