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Home >> Kia >> 2004 >> Spectra EX, 2.0 1, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures - 2.0L >> Troubleshooting For DTC >> DTC P0113: Intake Air Temperature Sensor Circuit High Input >> Inspection Procedure

Inspection Procedure

  1. CHECK IATS AND ECM CONNECTORS

    Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. See CONNECTOR INSPECTION PROCEDURE .

    Are all connectors good?

    1. Yes:  Go to next step.
    2. No: Repair or replace it.
  2. CHECK IATS RESISTANCE
    1. Turn ignition switch to OFF position and disconnect IATS connector.
    2. Measure resistance between terminals 1 and 5 of the IATS connector.

      Specification (IATS resistance):

      Fig 1: IATS Resistance Specification
      G00719419Courtesy of KIA MOTORS AMERICA, INC.
      Fig 2: Checking IATS Resistance
      G00719420Courtesy of KIA MOTORS AMERICA, INC.

    Is resistance within specification?

    1. Yes:  Go to next step.
    2. No: Replace IATS.
  3. CHECK REFERENCE VOLTAGE TO IATS
    1. Turn ignition switch to OFF position and disconnect IATS connector.
    2. Turn ignition switch to ON position.
    3. Measure voltage between terminal 5 of the IATS harness connector and chassis ground.

      Specification (Voltage): approximately 5V

      Fig 3: IATS Reference Voltage Specification
      G00719421Courtesy of KIA MOTORS AMERICA, INC.

    Is voltage within specification?

    1. Yes:  Go to next step.
    2. No: Repair open or short to chassis ground in harness.
  4. CHECK FOR OPEN IN HARNESS
    1. Turn ignition to OFF position, and then disconnect IATS and ECM connector.
    2. Measure resistance between terminal 1 of the IATS harness connector and 48 of the ECM harness connector.
    3. Measure resistance between terminal 5 of the IATS harness connector and 56 of the ECM harness connector.

      Specification (Resistance): below 1Ω

      Fig 4: Checking For Open In Harness
      G00719422Courtesy of KIA MOTORS AMERICA, INC.

    Does the resistance indicate continuity?

    1. Yes:  Go to next step.
    2. No: Repair open in harness.
  5. CHECK FOR SHORT TO POWER IN HARNESS
    1. Turn ignition switch to OFF position and disconnect IATS and ECM connectors.
    2. Turn ignition switch to ON position.
    3. Measure voltage between terminal 5 of the IATS harness connector and chassis ground.

      Specification (Voltage): below 0.5V

      Fig 5: Checking For Short To Power In Harness
      G00719423Courtesy of KIA MOTORS AMERICA, INC.

    Is voltage within specification?

    1. Yes:  Proceed with ECM PROBLEM INSPECTION PROCEDURE .
    2. No: Repair short to power in harness.
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