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Home >> Hyundai >> 2003 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0122: Throttle Pedal Position Circuit Low Input >> Inspection/Repair >> Component Inspection

Component Inspection

  1. Ignition "OFF".
  2. Disconnect TPS connector.
  3. Measure resistance between terminals 2 and 3 of the sensor connector (Component side).

    Specification: Approx. 1.6~2.4 kΩ at all throttle position

    Fig 1: Measuring Resistance Between Terminals 2 And 3 Of Sensor Connector (Component Side)
    G07330976
  4. With still TPS connector disconnected, measure resistance between terminals 1 and 2 of the sensor connector (Component side).
  5. Operate the throttle valve slowly from the idle position to the full open position and check the resistance changes smoothly in proportion with the throttle valve opening angle.

    Specification: 0.71~1.38 kΩ at closed throttle valve, 2.2~3.4 kΩ at wide open throttle

    Fig 2: Checking Resistance Changes In Proportion With Throttle Valve Opening Angle
    G07330977
  6. Is resistance within the specification?

    YES

    • Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO

    • Check TPS for contamination, deterioration, or damage. Substitute with a known-good TPS and check for proper operation. If the problem is corrected, replace TPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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