Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The scan tool display range is between -40 and +215°C (-40 and +419°F).
- The ECM detects a difference of greater than 20°C (68°F) between CAC outlet temperature sensor signal and the combined average temperature of IAT 3 and the fuel temperature sensor s.
- The condition exists for greater than 100 ms.