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Home >> Suzuki >> 2012 >> Equator RMZ-4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Performance - VQ40DE - (5 Of 6) >> DTC P0111: IAT Sensor >> On Board Diagnosis Logic
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On Board Diagnosis Logic

DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0111 IAT SENSOR 1 B1 [Intake air temperature (IAT) sensor circuit range/performance] The comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor, ECT sensor, and FTT 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.
  • Harness or connectors (High or low resistance in the IAT sensor circuit)
  • IAT sensor