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Engine-Codes – Generic – P0220

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

Quick Answer

The P0220 diagnostic trouble code indicates a problem with the Throttle/Pedal Position Sensor/Switch 'B' Circuit. Common causes include Faulty throttle position sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to sensor components. 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 indicates Throttle / Pedal Position Sensor / Switch 'B' Circuit.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to sensor components.
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 Aug 19, 2024
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Code P0220 Description

The P0220 diagnostic trouble code indicates a problem with the Throttle/Pedal Position Sensor/Switch 'B' Circuit. This sensor is responsible for monitoring the position of the throttle pedal and sending signals to the engine control module (ECM) to adjust the throttle opening accordingly. The 'B' circuit specifically refers to a specific circuit within the sensor that may be malfunctioning.

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

Common Causes of P0220

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the sensor circuit
  3. Corrosion or damage to sensor components
  4. ECM software malfunction
  5. Mechanical issues with the throttle system

Symptoms of P0220

  1. Erratic acceleration
  2. Poor fuel efficiency
  3. Stalling or hesitation during acceleration
  4. Inability to accelerate properly
  5. Illumination of the Check Engine Light

How to Fix P0220

  1. Begin by diagnosing the specific cause of the issue using a scan tool to determine if the problem lies with the sensor or its circuit.
  2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the throttle position sensor using a multimeter to ensure it is functioning properly. Replace if faulty.
  4. Clear the diagnostic trouble codes from the ECM and perform a road test to ensure the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to pinpoint the exact cause of the malfunction.

Cost to Fix P0220

The typical repair costs for addressing a P0220 code can range from $100 to $300, depending on the specific cause of the issue and the cost of replacement parts. It's important to consider additional costs for diagnosis time and labor rates, which can vary based on the factors mentioned earlier. It's advisable to consult with a trusted auto repair shop for a more accurate estimate based on your vehicle's make and model.

What does this mean?

Tech Notes for P0220





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Code P0220 Information for Specific Makes

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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