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Home >> Hyundai >> 2015 >> Equus Signature >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0121: Throttle Position Sensor 1 Signal Circuit Range/Performance >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Plausibility check between
  1. Poor connection
  2. TPS
  3. ECM
Enable Conditions
  • Engine speed is higher than 480 RPM
  • Engine load is lower than 95%
Threshold value
  • TPS value difference between TPS1 position and TPS2 position is higher then 6.3%.
Diagnosis Time
  • 0.28 sec
MIL On Condition
  • 1 driving cycle
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