FixVault

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 sensor circuit is open or shorted)
  • Intake air temperature sensor