Signal Circuit Inspection

Check for open in signal circuit.
1. Measure resistance between terminals 5 of the sensor harness connector and 56 of the PCM harness connector.
  Specification: Approx. 0Ω
  
  Fig 1: Measuring Resistance Between Terminals 5 Of Sensor Harness Connector And 56 Of PCM Harness Connector
  Courtesy of HYUNDAI MOTOR CO.
2. Is resistance within the specification?
  YES
  - Go to next step as below.
  NO
  - Repair as necessary and go to VERIFICATION OF VEHICLE REPAIR procedure.
Check for short to battery in signal circuit.
1. Ignition "ON" & Engine "OFF".
2. With IATS and PCM connector still disconnected, measure voltage between terminals 5 of sensor harness connector and 56 of the PCM harness connector.
  Specification : Approx. 0V
  
  Fig 2: Measuring Voltage Between Terminals 5 Of Sensor Harness Connector And 56 Of PCM Harness Connector
  Courtesy of HYUNDAI MOTOR CO.
3. Is voltage within the specification?
  YES
  - Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.
  NO
  - Repair open circuit and go to VERIFICATION OF VEHICLE REPAIR procedure.