P0071 Code - Ambient Air Temperature Sensor Range/Performance

What Does P0071 Mean?

OBD-II Code P0071 is defined as a Ambient Air Temperature Sensor Range/Performance
The ambient temperature sensor helps the engine control module (PCM) determine how much fuel to use on startup. The PCM also uses this signal as a logic reference for other temperature sensors on the engine. If the PCM detects an issue with the signal from this sensor, it will set code P0071.

engine code P0071	P0071 fix	obd P0071	dtc P0071
obd code P0071	obd2 P0071	P0071 car code	diagnostic code P0071
car code P0071	check engine code P0071	fehlercode P0071	P0071 fiat
codigo P0071	codigo falla P0071	P0071 kody błędów	codigo de falla P0071

What are the common causes of P0071 ?

Depending on year, make, and model, DTC P0071 may have number of causes. The most common is sensor or wiring damage. The AAT sensor is typically located in front of the radiator and air-conditioning condenser, inside a fender, or behind the bumper cover. Because of its exposed position, it is more susceptible to damage from collision, road debris, and corrosion. Even a minor bump from another vehicle could damage the sensor, connector, or the wiring.



What repairs can fix the P0071 code?

• Repairing or replacing wires with shorts and/or breaks
• Cleaning corrosion in the electric circuitry and/or connector
• Replacing the faulty ambient air temperature sensor

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