Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the maximum amount of cumulative airflow has been attained, and the minimum ECT of 75°C (167°F) has not been met, when the start-up IAT was between 10 and 55° C (50 and 131° F).
OR
- The ECM detects that the maximum amount of cumulative airflow has been attained, and the minimum ECT of 55°C (131°F) has not been met, when the start-up IAT was between - 7 and 10° C (19 and 50° F).