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Home >> Infiniti >> 2013 >> M56 Sport >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0183 >> DTC P0127: 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
P0127 IAT SENSOR-B1 (Intake air temperature too high) Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signal from engine coolant temperature sensor.
  • Harness or connectors (The intake air temperature sensor circuit is open or shorted)
  • Intake air temperature sensor
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