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System Tests: Notes

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
CAUTION: Static electricity can destroy integrated circuits in instrument cluster and VSS calibrator module. Before servicing these components, ground yourself and work area to discharge static electricity.
SYMPTOM INDEX

Symptom Perform Test
Coolant Temperature Gauge Always Indicates Cold 1 
Coolant Temperature Gauge Always Indicates Hot 2 
Coolant Temperature Gauge Inaccurate/Inoperative 3 
Fuel Gauge Always Indicates Empty 4 
Fuel Gauge Always Indicates Full 5 
Oil Pressure Gauge Always Indicates High 6 
Oil Pressure Gauge Always Indicates Low 7 
Oil Pressure Gauge Inaccurate/Inoperative 8 
Speedometer &/Or Odometer Malfunction 9 
Tachometer Inaccurate 10 
Tachometer Inoperative 11 
Voltmeter Inoperative/Inaccurate 12 
Indicator Light Malfunction (1)
(1) Check for open or short to ground in appropriate circuit. See WIRING DIAGRAMS .