Troubleshooting Hints - Digital Cluster

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS:
1. Check I/P Fuses 11, 20, 33 and 42.
2. Check the indicator bulbs.
3. If more than one indicator is out, check the Instrument Cluster Printed Circuit for flaws.
4. Check that grounds G104, G200, G202 and G300 are clean and tight.
5. If any segment of Speedometer fails to illuminate, send cluster out for repair.
^ 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 - Digital Cluster