Powertrain
generic / SAE
P0071
Ambient Air Temperature Sensor Circuit A Range/Performance
The ambient air temperature reading is electrically valid but implausible compared to other temperature sources (intake air temp, coolant at cold start).
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / 71
Possible causes
- Sensor reading drifted high
- Sensor exposed to engine heat medium
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 30–200 €
- Estimated time: 0.3–1 h
- Component: ambient air temp sensor
- MIL / check engine light
Sources
References
sae:J2012