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 Connector And 79 Of PCM Connector (M88)
  Courtesy of HYUNDAI MOTOR CO.
  
  Fig 2: Measuring Resistance Between Terminals 2 Of CCV Connector And 79 Of PCM Connector (M91)
  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 Connector And Chassis Ground (M88)
  Courtesy of HYUNDAI MOTOR CO.
  
  Fig 4: Measuring Voltage Between Terminal 2 Of CCV Connector And Chassis Ground (M91)
  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