GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Engine Electrical Diagnostic System Check?

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Go to step 2

Go to Diagnostic System Check - Engine Electrical

2

Turn ON the ignition, with the engine OFF.

Does the battery charge indicator, w/ boost gage, illuminate?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to step 3

3

Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.

Did you complete the replacement?

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Go to step 4

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4

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to step 2