Signal circuit Inspection

Check for open in harness
1. Ignition "OFF"
2. Disconnect SMARTRA connector.
3. Measure resistance between signal terminal of smartra harness connector and PCM harness connector.
  Specification: 1 Ω or less
  
  Fig 1: Measuring Resistance Between Signal Terminal Of Smartra Harness Connector And PCM Harness Connector
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 2: Immobilizer Module Connector Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specifications?
  YES
  - Go to "Check for short in harness" procedure below.
  NO
  - Check for open in harness. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short in harness
1. Ignition "OFF"
2. Disconnect SMARTRA connector.
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between signal terminal of SMARTRA harness connector and chassis ground.
  Specification: Approx. 5.48V
  
  Fig 3: Measuring Voltage Between Signal Terminal Of Smartra Harness Connector And Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 4: Immobilizer Module Connector Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured voltage within specifications?
  YES
  - Go to "SIGNAL CIRCUIT INSPECTION " procedure
  NO
  - Check for open in harness. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.