Control Circuit Inspection

Open Circuit Inspection
1. Disconnect the connector of relay side and OPU side.
2. Measure resistance between "Relay control circuit pin of OPU and OPU connector.
3. Measure resistance between Relay ON power pin of OPU and OPU connector.
  Specification: Approx. 0 Ω
  
  Fig 1: Measuring Resistance Between Relay Control Circuit Pin Of OPU And OPU Connector
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 2: Identifying OPU Connector Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specifications?
  YES
  - Go to " 2 Circuit Short Inspection" procedure.
  NO
  - Check circuit open of harness and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Short Circuit Inspection
1. Power circuit short inspection.
2. Disconnect "connector of Relay side and connector of Oil Pump Unit side.
3. Measure a resistance between "relay control pin of Oil Pump Unit wire side and Battery power.
  Specification: Infinite
  
  Fig 3: Measuring Resistance Between Relay Control Pin Of Oil Pump Unit Wire Side And Battery Power
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 4: Identifying OPU Connector Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specifications?
  YES
  - Go to " 3 Chassis Short Inspection" procedure.
  NO
  - Check circuit open of harness. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Chassis Ground Short Inspection
1. Disconnect "Oil Pump Unit connector and relay connector.
2. Measure a resistance between "relay control pin of Oil Pump Unit wire side and chassis ground.
  Specification: Infinite
  
  Fig 5: Measuring Resistance Between Relay Control Pin Of Oil Pump Unit Wire Side And Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 6: Identifying OPU Connector Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
3. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check harness for short circuit. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.