Control Circuit Inspection

Check for short to ground in control circuit.
1. Ignition "OFF".
2. Disconnect PCM connector.
3. Measure resistance between terminals 2 of the CCV harness connector and 79 of the PCM harness connector.
  Specification: Approx. 0Ω
  
  Fig 1: Measuring Resistance Between Terminals 2 Of CCV Harness Connector And 79 Of PCM Harness Connector (1 Of 2)
  Courtesy of HYUNDAI MOTOR CO.
  
  Fig 2: Measuring Resistance Between Terminals 2 Of CCV Harness Connector And 79 Of PCM Harness Connector (2 Of 2)
  Courtesy of HYUNDAI MOTOR CO.
4. 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 control circuit
1. Ignition "ON" & Engine "OFF"
2. Measure voltage between terminal 2 of the CCV harness connector and chassis ground
  Specification : Approx. 0V
  
  Fig 3: Measuring Voltage Between Terminal 2 Of CCV Harness Connector And Chassis Ground (1 Of 2)
  Courtesy of HYUNDAI MOTOR CO.
  
  Fig 4: Measuring Voltage Between Terminal 2 Of CCV Harness Connector And Chassis Ground (2 Of 2)
  Courtesy of HYUNDAI MOTOR CO.
3. Is voltage within the specification?
  YES
  - Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to VERIFICATION OF VEHICLE REPAIR procedure
  NO
  - Repair as necessary and go to VERIFICATION OF VEHICLE REPAIR procedure