Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 12
Possible causes
- Signal wire shorted to ground high
- Sensor failed shorted internally medium
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 30–200 €
- Estimated time: 0.2–1 h
- Component: intake air temperature sensor
- Component: intake air temperature sensor wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012