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Home >> Hyundai >> 2006 >> Elantra Limited >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G4GC-GSL 2.0) >> DTC Troubleshooting Procedures >> DTC P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High Input >> Signal Circuit Inspection

Signal Circuit Inspection

  1. With connector still disconnected, measure voltage between terminal 1 of the sensor harness connector and chassis ground.

    Specification: Approx. 5V

    Fig 1: Measuring Voltage Between Terminal 1 Of Sensor Connector And Chassis Ground
    G04923876Courtesy of HYUNDAI MOTOR CO.
  2. Is voltage within the specification?

    Yes: 

    No: