Signal Circuit Inspection

Check for open in signal harness.
1. Disconnect PCM connector.
2. Measure resistance between terminals 2 of sensor harness connector and 72 of the PCM connector.
  Specification : Approx. 0Ω
  
  Fig 1: Measuring Resistance Between Terminals 2 Of Sensor Harness Connector And 72 Of PCM Connector
  Courtesy of HYUNDAI MOTOR CO.
3. 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 ground in signal harness.
1. Measure resistance between terminal 2 of the sensor harness connector and chassis ground.
  Specification: Infinite
  
  Fig 2: Measuring Resistance Between Terminal 2 Of Sensor Harness Connector And Chassis Ground
  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 harness.
1. Ignition "ON" & Engine "OFF".
2. Measure voltage between terminal 2 of the sensor harness connector and chassis ground.
  Specification: Approx. 0V
  
  Fig 3: Measuring Voltage Between Terminal 2 Of Sensor Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
3. Is voltage within the specification?
  YES
  - Go to COMPONENT INSPECTION procedure.
  NO
  - Repair as necessary and go to VERIFICATION OF VEHICLE REPAIR procedure.