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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0123: Throttle/Pedal Position Sensor/Switch 'A' 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 etc. connector.
  3. IG KEY ON.
  4. Measure voltage between TPS1 signal terminal of etc. harness connector and chassis ground.

    Specification:  Approx. 4 V

    Fig 1: Measuring Voltage Between TPS1 Signal Terminal Of etc. Harness Connector And Chassis Ground
    G10606449Courtesy of HYUNDAI MOTOR AMERICA
  5. Is voltage within specification?

    YES 

    • Go to next procedure.

    NO