Conditions for Setting the DTC: P0128
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the actual coolant temperature is 10°C (18°F) less than the calculated coolant temperature.
- The condition exists for greater than 4 seconds or for a cumulative of 50 seconds.