One Gauge Inoperative

ONE GAUGE INOPERATIVE - GAS ENGINES

For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.






1. POWERTRAIN CONTROL MODULE
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display any PCM DTCs?

Yes

- Perform the appropriate diagnostics.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 2

2. INSTRUMENT CLUSTER
1. Turn the ignition off.
2. Perform the Instrument Cluster Self Test.

NOTE: The Self Test can be initiated manually by depressing and holding the Trip Reset button while turning the ignition on, or by using the scan tool.

3. Observe the gauge in question while the Instrument Cluster performs the Self Test.
4. The gauges should position at the following calibrations points:
- Speedometer MPH: 0, 20, 60, 90
- Tachometer Gas: 0, 1000, 3000, 6000
- Fuel: E, 1/4, 1/2, 3/4, F
- Coolant: Cold, 1/4, 1/2, 3/4, HI
- Volts: 6, 9, 12, 15, 17

Did the gauge in question operate properly?

Yes

- The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire harness. Search for any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wiring harness and connector terminals.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace and configure the Instrument Cluster.
- Perform the BODY VERIFICATION TEST. Body Verification Test.