P0112 – Intake Air Temperature Sensor 1 Circuit Low Input

System: Engine
Dashboard light: Check engine light (MIL)
Check-engine blink code: —
Applies to: Generic OBD-II meaning. Not every code is used by this car.
Description: Intake Air Temperature Sensor 1 Circuit Low Input
Detection / symptoms: 1.Check engine light on 2.There may be no noticeable symptoms of a 3.P0112 4.Indicator Lamp). However, a emissions test may reveal higher Nox readings depending 5.On the type of IAT failure. Or the engine may ping under load, depending on the 6.Type of IAT failure
Possible causes: 1.Usually the P0112 is caused by a bad IAT (internally shorted or open or otherwise damaged), 2.But it could also be 3.No reference voltage to the IAT sensor due to an open wire 4.Excessively high intake air temperatures 5.Short to ground on signal circuit 6.Damaged IAT connector 7.Bad PCM
What to check: 1.Read the code and freeze-frame data with an OBD-II scanner 2.Check the connector and wiring of the part named in the code 3.Test the part with scanner live data or a multimeter, using the values in the repair manual 4.Fix the cause, clear the code and test-drive
Confidence: medium (generic OBD-II definition, not checked against the factory manual for this car)

Generic OBD-II meaning (obd-codes.com), not checked against this car's factory manual. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights