OBD-II code · Powertrain (generic)
P0112 Intake Air Temperature Sensor Low Input
The IAT signal voltage is below threshold, which the ECU interprets as an implausibly hot intake (low NTC resistance). Usually a wiring short to ground or a failed sensor.
Is it safe to drive with P0112?
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
- PossibleSensor failed shorted internally
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.2–1 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Intake Air Temperature Sensor, Intake Air Temperature Sensor Wiring
Related codes
- P010FMass or Volume Air Flow Sensor A/B Correlation
- P0110Intake Air Temperature Sensor Circuit Malfunction
- P0111Intake Air Temperature Sensor Range/Performance
- P0113Intake Air Temperature Sensor High Input
- P0114Intake Air Temperature Sensor Intermittent
- P0115Engine Coolant Temperature Sensor Circuit Malfunction
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.