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Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P014F >> DTC P0112, P0113: IAT Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0112 IAT SEN/CIRCUIT-B1 [Intake air temperature sensor circuit low input] An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors (The sensor circuit is open or shorted.)
  • Intake air temperature sensor
P0113 IAT SEN/CIRCUIT-B1 [Intake air temperature sensor circuit high input] An excessively high voltage from the sensor is sent to ECM.
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