P0221

2017-10-10

Description:

  • The fault code P0221 indicates that there is an issue with the circuit controlling the throttle or pedal position sensor/switch B. This may cause the engine to have poor performance or not start at all.

Possible Symptoms:

  • Engine runs poorly or not at all

  • Illuminated check engine light

  • Engine hesitates or stumbles during acceleration

  • Reduced engine power or acceleration

Possible Causes:

  • Failed throttle or pedal position sensor/switch B

  • Faulty wiring or connections in the circuit

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Throttle Position Sensor: Throttle position sensor generally denotes the position of the accelerator pedal. Problems lead to poor acceleration

Possible Solutions:

  • Replace the throttle or pedal position sensor/switch B

  • Check and repair any damaged wiring or connections

  • Tighten or clean any loose or corroded electrical connections

  • Replace the engine control module (ECM) if necessary

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