Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Start the engine.

Does the engine coolant temperature indicator illuminate?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

1. Connect the diagnostic scan tool.
2. Select instrument panel cluster (IPC) inputs menu.

Does the scan tool indicate that the Coolant Hot Lamp is ON?

Go to Engine Overheating

Go to Step 4

Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the repair?

Go to Step 5

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2