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Home >> Hyundai >> 2014 >> Veloster Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (1 Of 2) - Non-Turbo >> DTC P0121: Throttle Pedal Position Sensor Switch 'A' Circuit Range Performance >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Plausibility check between
  1. Poor connection
  2. TPS
  3. ECM
Enable Conditions
  • IG "ON"
Threshold Value
  • | TPS1 position - TPS2 position | > 6.3%
Diagnostic Time
  • 0.14sec
MIL ON Condition
  • 5 sec
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