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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC P2123: Throttle/Pedal Position Sensor/Switch 'D' Circuit High Input >> W/Harness Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check for Short to Power in Signal circuit 

  1. IG KEY OFF.
  2. Disconnect APS harness connector.
  3. IG KEY ON.
  4. Measure voltage between APS1 signal terminal of APS harness connector and chassis ground.

    Specification:  Approx. 0V

    Fig 1: Measuring Voltage Between APS1 Signal Terminal Of APS Harness Connector And Chassis Ground
    G10606895Courtesy of HYUNDAI MOTOR AMERICA
  5. Is voltage within specification?

    YES 

    • Go to next procedure.

    NO