Fuel Gauge Test

Instrument Cluster With Tachometer:

Instrument Cluster Without Tachometer:

1. Remove the gauge from the cluster.
3. With ignition switch in On position, check for battery voltage at Ignition pin and ground continuity at the ground pin.
^ If voltage or ground are missing, check wiring, printed circuit board and connections.
2. Reinstall gauge. Turn ignition switch on and check gauge position.
3. Remove gauge and connect an ohmmeter the the sending unit pin.

Gauge Calibration Chart:

4. Compare measured resistance to the Gauge Calibration Chart.



Multiple Gauge Malfunction

Printed Circuit Board Connectors:

If the Voltmeter, Speedometer, Tachometer, and other gauges appear to be malfunctioning, proceed as follows:
1. Remove the cluster.
2. Check for ignition voltage at pin E of the red cluster connector.
^ If voltage is not present, repair open circuit.
3. Check for ground continuity between pin C of the red cluster connector.
^ If a good ground is not present, repair open circuit.
4. If circuits are OK and pins or connectors are not distorted, replace the printed circuit board.