GM Service Manual Online
For 1990-2009 cars only

Check Gages Indicator Inoperative

Step

Action

Value(s)

Yes

No

1

Did you perform the IPC Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

  1. Engine idling at normal operating conditions.
  2. Observe the following gauges:
  3. • Fuel
    • Oil Pressure
    • Coolant Temperature
    • Voltage

Are all of the gauges functioning properly and not within the red zone?

--

Go to Step 3

Go to the Applicable Symptom Table

3

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, select IPC special functions and command the CHECK GAGES indicator ON and OFF.

Does CHECK GAGES indicator turn ON and OFF with each command?

--

System OK

Go to Step 4

4

Inspect the CHECK GAGES bulb for and open. Refer to Instrument Cluster Indicator Lamp Replacement .

Did you find and correct the condition?

--

Go to Step 6

Go to Step 5

5

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

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Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2