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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (2 Of 6) (Except HEV) >> DTC P0121: Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance >> DTC Information >> DTC Description
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DTC Description

DTC P0121 sets when the ECM indicates the electronic throttle control throttle position sensor 1 circuit is out of range in either the closed or wide open throttle (WOT) modes.