Possible causes

– Faulty Intake Air Temperature (IAT) sensor
– Dirty air filter
– Intake Air Temperature (IAT) sensor harness is open or shorted
– Intake Air Temperature (IAT) sensor circuit poor electrical connection

When is the code detected?

An excessively low voltage from the sensor is sent to ECM.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0112 Description

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM).The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle.

P0112 Information for specific makes

P0112 SUBARU
P0112 ACURA
P0112 HONDA
P0112 BMW
P0112 CHRYSLER
P0112 DODGE
P0112 JEEP
P0112 FORD
P0112 HYUNDAI
P0112 INFINITI
P0112 NISSAN
P0112 ISUZU
P0112 KIA
P0112 LEXUS
P0112 TOYOTA
P0112 MAZDA
P0112 MITSUBISHI
P0112 VOLKSWAGEN
P0112 AUDI
P0112 JAGUAR
P0112 BUICK
P0112 CADILLAC
P0112 CHEVROLET
P0112 GMC
P0112 PONTIAC
P0112 SATURN