Conditions For Running DTC
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The engine is running at idle for more than 90 seconds.
- The Engine Coolant Temperature (ECT) is more than 132°F (56°C).