Connector End View Reference: Cooling System Connector End Views

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

Start the engine.

Does the hot coolant indicator illuminate?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections

1. Install a scan tool.
2. With a scan tool, observe the engine coolant temperature (ECT) sensor parameter in the Powertrain Control Module data list.

Does the scan tool indicate that the coolant temperature is within the temperature range shown on the temperature gauge?

Go to Engine Overheating

Go to Step 4

Replace the IPC. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

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