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Home >> Hyundai >> 2009 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0452 EVAP. Emission System-Pressure Sensor Low Input >> Signal Circuit Inspection

Signal Circuit Inspection

  1. Ignition "ON" & Engine "OFF"
  2. Measure voltage between terminal 3 of the FTPS harness connector and chassis ground

    Specification:  Approx. 5V

    Fig 1: Measuring FTPS Output Voltage Between Terminal 3 (Back Probe) Of FTPS Harness Connector And Chassis Ground
    G00486627Courtesy of HYUNDAI MOTOR CO.
  3. Is voltage within the specification?

    YES 

    NO