GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.

1

Did you perform the Instrument Cluster System Check?

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Go to Step 2

Go to Instrument Cluster System Check

2

  1. Turn the ignition switch to the ON position.
  2. With the scan tool select Instrument Panel Cluster, Special Functions, IPC Gauges and command the tachometer UP.

Does the tachometer complete a full sweep when commanded?

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Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls

Go to Step 3

3

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Did you complete the repair?

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Go to Instrument Cluster System Check

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