Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
P0071
The difference between the following parameters is greater than a predefined value: Outside Ambient Air Temperature Sensor Signal & Intake Air Temperature Sensor Signal
P0072
Outside Ambient Air Temperature Sensor Signal = Greater than 88°C (190°F)
P0073
Outside Ambient Air Temperature Sensor Signal = Less than -40°C (-40°F)
P0074
Outside Ambient Air Temperature Sensor Signal = Not Plausible