GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

  1. Install a scan tool.
  2. Start the engine.
  3. With a scan tool, observe the Volts parameter in the Instrument Panel Cluster data list.

Does the voltage measure greater than the specified value?

9.5 V

Go to Step 3

Go to Charging System Test in Engine Electrical

3

  1. Turn OFF the ignition.
  2. Turn ON the ignition, with the engine OFF.

Does the battery charge indicator illuminate for 5 seconds during bulb check?

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System OK

Go to Step 4

4

Replace the instrument panel cluster. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

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System OK

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