OBD-II Generic Error Code P0072: How to Fix It

Q: Can I drive with error code P0072?

Yes, you can usually drive with P0072. The ambient air temperature sensor mainly affects climate control and some engine calculations. However, fuel economy and emissions may be slightly affected. It's safe to drive short distances.

Q: How much does it cost to fix code P0072?

If you DIY, the ambient air temperature sensor costs $20-$50. Professional repair including labor and diagnostic fee can range from $100 to $200.

Q: What causes code P0072?

Common causes include a faulty ambient air temperature sensor, damaged wiring or connector, a short to ground or voltage, or a defective PCM.

Q: Where is the ambient air temperature sensor located?

It is typically located behind the front grille, near the bumper, or behind the radiator. On some vehicles, it may be inside the front bumper or near the condenser.

Q: Will clearing the code fix P0072 permanently?

No. Clearing the code only erases the symptom. The underlying issue will cause the code to return. Proper diagnosis and repair are necessary.

Abstract

Error code P0072 indicates that the Powertrain Control Module (PCM) has detected a low voltage signal from the ambient air temperature sensor, which measures outside air temperature. This typically means the sensor circuit is reading a voltage lower than expected, often due to a faulty sensor, wiring issues, or a short to ground.