• Reduced engine performance
• Check Engine Light illuminated
• Poor acceleration
• Faulty Throttle/Pedal Position Sensor/Switch C
• Wiring issues such as shorts or open circuits
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• P0226
• P0228
Throttle/Pedal Position Sensor/Switch C Circuit Low
This code means that the car's computer thinks there's a problem with a sensor that helps control how much gas the car gets when you press the pedal. It's like when a video game controller button doesn't work right.
The P0227 code is triggered when the Engine Control Module (ECM) detects a low voltage signal from the Throttle/Pedal Position Sensor/Switch C circuit.
The Throttle/Pedal Position Sensor/Switch C is part of the vehicle's electronic throttle control system. It monitors the position of the throttle or pedal and sends this information to the ECM. A 'low' circuit condition indicates that the voltage signal from the sensor is below the expected range, which could be due to a faulty sensor, wiring issues, or a malfunctioning ECM.
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the Throttle/Pedal Position Sensor/Switch C for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the Throttle/Pedal Position Sensor/Switch C if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II Scanner
• Multimeter
• Screwdriver set
$100 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Inspect wiring and connectors periodically
• Ensure proper calibration of sensors
Sensor Issue
• Avoid driving aggressively until the issue is fixed.
• Have the vehicle inspected by a professional mechanic.
Check with your vehicle's manufacturer for specific warranty coverage on electronic components.
This code has been associated with electronic throttle control systems since the introduction of drive-by-wire technology in vehicles.
Moderate – While the vehicle may still be drivable, performance issues can worsen over time.
Operating a vehicle with a malfunctioning throttle system can lead to reduced performance and safety risks.
• Engine running
• Throttle pedal pressed
The Throttle/Pedal Position Sensor is typically located on the throttle body or at the pedal assembly.
Q: Can I drive with a P0227 code?
A: It's possible to drive, but it's not recommended as it can lead to further engine performance issues.
Q: How do I clear a P0227 code?
A: After repairs, use an OBD-II scanner to clear the code from the ECM.
