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. Turn ON the ignition switch.
  2. Connect the diagnostic scan tool.
  3. Select the IPC Data Menu.

Is the engine speed reading on the scan tool the same as the indicated engine speed on the tachometer?

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Go to Headlight System Check in Lighting Systems

Go to Step 3

3

Replace the instrument cluster (IPC). Refer to Instrument Cluster Replacement .

Did you complete the repair?

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Go to Instrument Cluster System Check

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