Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting a signal that is too high from a sensor that tells it how much you are pressing the gas pedal.
The P0228 code is triggered when the voltage from the throttle/pedal position sensor/switch C is higher than the expected range.
The Throttle/Pedal Position Sensor/Switch C is part of the system that monitors the position of the throttle or pedal. It sends a voltage signal to the engine control module (ECM) that corresponds to the position of the throttle or pedal. If the ECM detects a voltage that is higher than the maximum threshold, it sets the P0228 code.
• Check Engine Light is on
• Poor acceleration
• Vehicle may go into 'limp' mode
• Faulty throttle/pedal position sensor
• Wiring issues such as short circuits
• Defective ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the throttle/pedal position sensor with a multimeter.
• Replace the throttle/pedal position sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and clean throttle body and sensors.
• Ensure wiring harnesses are secure and free from damage.
• Perform routine maintenance checks.
Sensor Issue
• Avoid driving at high speeds until the issue is resolved.
• Consult a professional mechanic if unsure about repairs.
Check with your vehicle manufacturer for specific warranty coverage on sensors and ECM.
This code has been reported in vehicles with electronic throttle control systems since the early 2000s.
Moderate – While the vehicle may still be drivable, it can affect performance and should be addressed soon.
Driving with a malfunctioning throttle sensor can lead to unsafe driving conditions and should be repaired promptly.
• Engine running
• Throttle pedal pressed
The throttle/pedal position sensor is typically located on the throttle body or near the accelerator pedal.
Q: Can I drive my car with a P0228 code?
A: It's not recommended as it can affect vehicle performance and safety.
Q: How do I clear a P0228 code?
A: The code can be cleared with an OBD-II scanner after the issue is fixed.
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