OBD-II code · Powertrain (generic)
P0072 Ambient Air Temperature Sensor Circuit A Low
Ambient air temperature sensor A signal voltage below the expected range — typically a short to ground.
Is it safe to drive with P0072?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Ambient Air Temp Sensor, Sensor Wiring
Related codes
- P00DBAmbient Air Temperature Sensor Circuit B Low
- P006FTurbocharger/Supercharger Boost Control A Supply Voltage Circuit High
- P0070Ambient Air Temperature Sensor Circuit A
- P0071Ambient Air Temperature Sensor Circuit A Range/Performance
- P0073Ambient Air Temperature Sensor Circuit A High
- P0074Ambient Air Temperature Sensor Circuit A Intermittent/Erratic
- P0075Intake Valve Control Solenoid Circuit Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.