Circuit/System Testing
WARNING: This page is about a different car, the 2007 Pontiac G6. However, it is still accessible from the selected car via links, so may be relevant.
With the engine running within the normal operating temperature range, the engine coolant temperature (ECT) indicator should not be illuminated.
- If the engine coolant is not within the normal operating range, repair the overheating condition.
- If the engine coolant is within the normal operating range, replace the IPC.