System Diagnosis
- Verify complaint using SYSTEM CHECK . Use SOMERSET ELECTRONIC INSTRUMENT PANEL VOLTAGE & RESISTANCE CHARTS to test instrument panel. See Fig 1 and Fig 2 . Measure all voltages to ground with ignition switch in "RUN" position.
- Measure all resistances to ground with ignition off and negative battery cable disconnected. Check that all terminals in connectors are properly seated and not pushed out of connector.
- If correct voltage and resistance readings are found at terminals, and panel function that uses those terminals does not operate, replace digital cluster.