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DTC P0121 - Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance

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DTC DESCRIPTION P0121 - THROTTLE/PEDAL POSITION SENSOR/SWITCH A CIRCUIT RANGE/PERFORMANCE

Description:  This DTC sets when the PCM indicates the electronic throttle control (ETC) throttle position (TP) sensor 1 circuit is out of range in either the closed or wide open throttle (WOT) modes.
Possible Causes: 
  • Obstruction in the throttle plate movement
  • TP circuit open
  • Self-test operator error (foot resting on the accelerator pedal during test)
  • Damaged TP sensor
  • Damaged throttle body
Diagnostic Aids:  This concern exhibits a symptom of limited power.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DV .