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Home >> Lexus >> 2003 >> GS 300 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance >> Diagnosis & Repair

Diagnosis & Repair

Replace accelerator pedal position sensor. See ACCELERATOR PEDAL POSITION SENSOR in REMOVAL & INSTALLATION article.