Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
The PCM detects all of the following conditions:
- The calibrated amount of engine run time has been met.
- The calibrated amount of engine air flow has been met.
- The calibrated vehicle speed and distance have been met.
- The calibrated minimum ECT of 75°C (167°F) has not been met when the IAT is more than 10°C (50°F).
OR
The calibrated minimum ECT of 55°C (131°F) has not been met when the IAT is between -7 and +10°C (+19 and +50°F).