DTC P0071 Alfa Romeo
Ambient Air Temperature Sensor Circuit A Range-Performance
Ambient Air Temperature Sensor Circuit A Range-Performance
Description
After a calibrated amount of cool down time, the PCM compares the AAT, ECT, and IAT Sensor values. If the AAT Sensor value is not within 10°C (18°F) of the other temperature sensors, the AAT Sensor is declared as irrational.
Cause and Solution
High Resistance In The Aat Signal Circuit
High Resistance In The Aat Sensor Ground Circuit
Ambient Air Temperature (Aat) Sensor
Video Guide
Diagnostic Info
- DTC Code: P0071
- Brand: Alfa Romeo