Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a sensor that tells the engine how much you're pressing the gas pedal. This code means that sensor is not working right.
The P0221 code indicates that the throttle or pedal position sensor B circuit is not performing within the expected range.
The throttle position sensor (TPS) is used to monitor the position of the throttle in an internal combustion engine. The sensor is usually located on the butterfly spindle/shaft so that it can directly monitor the position of the throttle. The P0221 code is triggered when the PCM (Powertrain Control Module) detects that the voltage or resistance from the throttle position sensor B is outside the expected range.
• Check Engine Light is on
• Poor acceleration
• Engine may stall or hesitate
• Faulty throttle position sensor
• Wiring issues in the sensor circuit
• Faulty PCM
PCM: Powertrain Control Module
TPS: Throttle Position Sensor
• Use an OBD-II scanner to confirm the code
• Inspect the throttle position sensor and wiring
• Test the sensor with a multimeter
• Replace the throttle position sensor
• Repair or replace damaged wiring
• Reprogram or replace the PCM if necessary
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Ensure clean and secure electrical connections
• Avoid harsh driving conditions
Sensor Issue
• Avoid driving aggressively until fixed
• Get the vehicle checked by a professional mechanic
Check with the vehicle manufacturer for warranty coverage on the throttle position sensor.
The P0221 code has been a common issue in vehicles with electronic throttle control systems since the early 2000s.
Moderate – It is recommended to address this issue soon to prevent potential drivability problems.
Driving with an unresolved P0221 code may lead to safety risks due to unexpected engine behavior.
• Engine running
• Throttle operation
The throttle position sensor is typically located on the throttle body of the engine.
Q: Can I drive with a P0221 code?
A: It's possible, but not recommended due to potential drivability and safety issues.
Q: How do I reset the P0221 code?
A: The code can be reset with an OBD-II scanner, but it's important to fix the underlying issue first.
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