Does the tachometer always indicate low RPMs?

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Go to Step 3

Go to Step 2

Does the tachometer always indicate high RPMs?

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Go to Step 3

Go to Instrument Cluster System Check

1. Connect a scan tool to the vehicle data link connector (DLC).
2. Using the scan tool, attempt to perform the engine tachometer gage sweep test.

Does the tachometer gage sweep from low RPMs to high RPMs and return to low RPMs?

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Go to Powertrain On Board Diagnostic (OBD) System Check (V6 VIN K) or Powertrain On Board Diagnostic (OBD) System Check (V8 VIN G)

Go to Step 4

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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System OK

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