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

1. Turn OFF the ignition.
2. Install a scan tool.
3. Turn ON the ignition, with the engine OFF.
4. Observe the ECT parameter in the powertrain control module (PCM) data display.

Does the scan tool indicate that the ECT parameter is the same as the engine coolant temperature display?

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Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L

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