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P0220 Toyota Code - Throttle / Pedal Position Sensor / Switch 'B' Circuit

Quick Answer

The P0220 code for Toyota vehicles indicates a problem with the Throttle/Pedal Position Sensor or Switch 'B' Circuit. Common causes include Faulty throttle or pedal position sensor, Damaged or corroded wiring in the sensor circuit, Loose connections or poor electrical grounding. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0220 Toyota indicates Throttle / Pedal Position Sensor / Switch 'B' Circuit.
Common causes
Common causes include Faulty throttle or pedal position sensor, Damaged or corroded wiring in the sensor circuit, Loose connections or poor electrical grounding.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0220 Toyota Description

The P0220 code for Toyota vehicles indicates a problem with the Throttle/Pedal Position Sensor or Switch 'B' Circuit. This sensor is crucial for the proper functioning of the vehicle's throttle system, as it sends signals to the engine control module (ECM) about the position of the throttle or accelerator pedal. The ECM uses this information to adjust fuel delivery and air intake to optimize engine performance.

OBDII Code P0220 Toyota - Throttle / Pedal Position Sensor / Switch 'B' Circuit
P0220 Toyota Code - Throttle / Pedal Position Sensor / Switch 'B' Circuit

Common Causes of P0220 Toyota

  1. Faulty throttle or pedal position sensor.
  2. Damaged or corroded wiring in the sensor circuit.
  3. Loose connections or poor electrical grounding.
  4. Water intrusion or contamination in the sensor.
  5. ECM software issues or malfunctions.

Symptoms of P0220 Toyota

  1. Engine hesitation or lack of response when pressing the accelerator pedal.
  2. Reduced engine power or acceleration.
  3. Stalling or rough idling.
  4. Check Engine Light illuminated on the dashboard.
  5. Reduced fuel efficiency.

How to Fix P0220 Toyota

  1. Begin by diagnosing the P0220 code with a professional OBD-II scanner to confirm the issue.
  2. Inspect the throttle or pedal position sensor for any visible damage or signs of wear.
  3. Check the wiring and connectors for corrosion, breaks, or loose connections.
  4. Test the sensor's resistance and voltage output with a multimeter to ensure it is functioning correctly.
  5. If the sensor is faulty, replace it with a new OEM part and recalibrate it according to manufacturer specifications.

Cost to Fix P0220 Toyota

The typical repair costs for addressing the P0220 code on a Toyota vehicle can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It is advisable to inquire about local rates to get a more accurate estimate for this repair. Keep in mind that rates may be higher at dealerships or metropolitan areas, while independent shops may offer more affordable prices.

What does this mean?

Tech Notes for P0220 Toyota

Quite a frequent problem with Toyota models. Before replacing any parts, try cleaning the throttle body and resetting the code. If the code comes back, it will be necessary to replace the Throttle Body Assembly.











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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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