Conditions for Setting the DTC
WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The following parameters are not within 25°C (45°F) of each other:
- Start-Up IAT Sensor 1
- Start-Up IAT Sensor 2