Conditions For Setting DTC

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The calibrated amount of engine run time has been met.
The calibrated amount of engine air flow has been met.
The calibrated minimum engine coolant temperature of 167° F (75° C) has not been met.