Troubleshooting Hints - Gauges and Warning Indicators

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check the INDIC, ELEC, and CLSTR Fuses by visual inspection.
2. Check that grounds G113, G117, G201, G2O3 and G301 are clean and tight.
3. Check the indicator bulbs.
4. If more than one indicator is out, check the Instrument Cluster Printed Circuit for flaws.
5. If the Auxiliary Gages Cluster does not function, check for poor connection at the Auxiliary Gages Cluster.
^ 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. System Diagnosis