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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 6) >> Engine (ECM) >> DTC P0111: IAT Sensor >> DTC Description >> VR30DDTT engine >> DTC Detection Logic
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DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0111

IAT SENSOR 1 B1

(Intake air temperature sensor 1 circuit range/performance bank 1)

The comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor 1, ECT sensor 1, FTT sensor, and EOT sensor) shows that the voltage signal of the IAT sensor is higher/lower than that of other temperature sensors when the engine is started with its cold state.
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