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Home >> Hyundai >> 2017 >> Accent Value Edition >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0121: Throttle Position Sensor 1 Signal Circuit Range/Performance >> DTC Information >> DTC Description

DTC Description

ECM sends DTC P0121 if the difference between the throttle valve position value calculated by TPS1 and the designated value by ECM is over certain value when the TPS2 is abnormal.

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