Conditions f or Setting the DTC

P0071 

The difference between the following parameters is greater than a predefined value: Ambient Air Temperature Sens or Signal & A/C High Side Pressure Switch Signal = Greater than 25°C (77°F)

P0072 

Ambient Air Temperature Sens or Signal = Greater than 88°C (190°F)

P0073 

Ambient Air Temperature Sens or Signal = Less than -40°C (-40°F)

P0074 

Ambient Air Temperature Sens or Signal = Intermittent