Did you perform the Instrument Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

1. Turn ON the ignition, with the engine OFF.
2. Install a 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 Powertrain On Board Diagnostic (OBD) System Check in Engine Controls-3.8L

Go to Step 3

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

Did you complete the repair?

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Go to Step 4

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2