Inspection Procedure

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.

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

   Courtesy of KIA MOTORS AMERICA, INC.
   Fig 2: Checking IATS Resistance

   Courtesy of KIA MOTORS AMERICA, INC.

Is resistance within specification?

1. Yes:  Go to next step.
2. No: Replace 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

   Courtesy 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.

1. Turn ignition switch to OFF position, and then disconnect IATS and ECM connector.
2. Measure resistance between terminal 5 of the IATS harness connector and chassis ground.
3. Measure resistance between terminal 1 and 5 of the IATS harness connector.
   • Specification (Resistance): infinite
     Fig 4: Checking For Short To Ground In Harness

     Courtesy of KIA MOTORS AMERICA, INC.

   Does each resistance indicate open?

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