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Home >> Hyundai >> 2010 >> Elantra GLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> DTC P0122: Throttle Position Sensor 1 Signal Circuit Low Input >> Inspection Repair >> W/Harness Inspection >> Signal Circuit Inspection
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Signal Circuit Inspection

NOTE: Check for open or short circuit in harness. Refer to "SIGNAL WAVEFORM " in the "General Information" procedure
  1. Measure voltage between terminal 1 of the sensor harness connector and chassis ground

    Specification  : Approx. 5V

    Fig 1: Measuring Voltage Between Sensor Connector Terminal 1 And Chassis Ground
    G06856153Courtesy of HYUNDAI MOTOR CO.
  2. Is voltage within the specification?

    YES 

    • Go to next step as below

    NO