Engine Coolant Temperature Indicator Always On

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: The engine coolant temperature indicator is always ON and no powertrain DTCs have been set.
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Start the engine. Does the Engine Coolant Temperature indicator illuminate?	Go to Step 3	Go to Testing for Intermittent Conditions and Poor Connections
3	Connect the diagnostic scan tool. With the scan tool, observe the engine coolant temperature parameter in the powertrain control module (PCM) or engine control module (ECM) data list. Does the scan tool indicate that the coolant temperature is within the temperature range shown on the temperature gage?	Go to Engine Overheating	Go to Step 4
4	IMPORTANT: Perform the programming procedure for the replacement instrument panel cluster (IPC). Replace the IPC. Refer to Control Module References for replacement, setup and programming.Did you complete the repair?	Go to Step 5	-
5	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2