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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System Diagnosis - 2.0L (1 Of 3) (Except HEV)) >> DTC P0122: Throttle Pedal Position Sensor Switch 'A' Circuit Low Input >> Component Inspection

Component Inspection

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

■ TPS Inspection 

  1. IG "ON"
  2. Select "Actuation Test" mode and execute "ETC motor" component.

    Specification: 

    Fig 1: Screen Display - ETC Motor And Actuation Test Mode
    G11992381Courtesy of HYUNDAI MOTOR AMERICA
    • During 'ETC Motor' test, TPS 1 and TPS 2 show symmetrical movements.
  3. Is the waveform normal?

    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 ETC for contamination, deterioration, or damage. Substitute with a known-good ETC and check for proper operation. If the problem is corrected, replace TPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    NOTE: It is necessary to perform the TPS adaptation procedure after the ETC assembly or PCM replacing.
    ■ TPS adaptation procedure 
    IG "OFF" and then "ON" without cranking. Wait for 10 seconds under enable conditions.
    → Enable conditions: Battery >10 V & Intake Air Temp. >5.3°C (41.5°F) & 5.3°C (41.5°F) <Engine Coolant Temp. <99.8°C (211.6°F)