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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Control System Diagnosis - 1.6L (3 Of 3) (Except HEV)) >> DTC P2127: Throttle/Pedal Position Sensor/Switch 'E' Circuit Low Input >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.
  1. IG "OFF" and install a GDS.
  2. Warm up the engine to normal operating temperature.
  3. Monitor "APS" parameter on the "Current Data" with GDS.

    Specification:  "Current Data" will be displayed as follows.

  4. Is the measured signal waveform O.K?

    YES 

    • Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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