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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
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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