Control Circuit Inspection

Check for open in harness
1. Ignition "OFF"
2. Disconnect Multipurpose Check Connector and PCM connector.
3. Measure resistance between terminal "D22" of Multipurpose Check Connector and terminal "B18" of PCM harness connector.
  Specification: Approx. below 1Ω
  
  Fig 1: Measuring Resistance Between Terminal "D22" Of Multipurpose Check Connector
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specifications?
  YES
  - Go to "Check for short to ground in harness" as below.
  NO
  - Check open in harenss between Multipurpose Check Connector and PCM connector.
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to ground in harness
1. Ignition "OFF"
2. Disconnect Multipurpose Check Connector.
3. Measure resistance between terminal "D22" of Multipurpose Check Connector and chassis ground.
  Specification: Infinite
  
  Fig 2: Measuring Resistance Between Terminal "D22" Of Multipurpose Check Connector And Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specifications?
  YES
  - Substitute with a known - good PCM and check for proper operation.
  If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  
  NO
  - Check for short to ground in harenss.
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.