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Home >> Hyundai >> 2009 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0448 EVAP. Emission System-Vent Control Circuit Shorted >> Control Circuit Inspection
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Control Circuit Inspection

  1. Check for short to ground in control circuit
    1. Measure voltage between terminal 6 of the CCV harness connector and chassis ground

      Specification:  Approx. 4~5V

      Fig 1: Measuring Voltage Between Terminal 6 Of CCV Harness Connector And Chassis Ground
      G00486624Courtesy of HYUNDAI MOTOR CO.
    2. Is voltage within the specification?

      YES 

      • Go to  2

      NO 

  2. Check for short to power in control circuit
    1. Ignition "OFF"
    2. Disconnect ECM connector
    3. Ignition "ON" & Engine "OFF"
    4. Measure voltage between terminal 6 of the CCV harness connector and chassis ground

      Specification:  Approx. 0V

      Fig 2: Measuring Voltage Between Terminal 6 Of CCV Harness Connector And Chassis Ground
      G00486624Courtesy of HYUNDAI MOTOR CO.
    5. Is voltage within the specification?

      YES 

      NO 

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