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Home >> Hyundai >> 2012 >> Elantra GLS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> DTC P0112: Intake Air Temperature Sensor1 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 Connector And Chassis Ground
    G07272214Courtesy of HYUNDAI MOTOR CO.
  4. Is resistance within the specification?

    YES 

    Go to next step as below.

    NO 

    Repair as necessary and go to "W/HARNESS INSPECTION " procedure.

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