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Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) - HEV >> 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 IATS Harness Connector Signal Terminal And Chassis Ground
    G08305801Courtesy of KIA MOTORS AMERICA, INC.
  4. Is resistance within the specification?

    YES 

    • Go to next step as below.

    NO 

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