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Home >> Hyundai >> 2012 >> Tucson GL, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0112: Intake Air Temperature Sensor 1 Circuit Low Input >> Inspection/Repair >> W/Harness Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect IAT sensor connector and PCM connector.
  3. Measure the resistance between signal terminal of IATS harness connector and chassis ground.

    Specification:  Infinite

    Fig 1: Measuring Resistance Between Signal Terminal Of IATS Harness Connector And Chassis Ground
    G06871518Courtesy of HYUNDAI MOTOR CO.
  4. Is resistance within the specification?

    YES 

    • Go to next step as below.

    NO 

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