Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that tells the car how much you're pressing the gas pedal. Sometimes it works, and sometimes it doesn't.
The P0124 code is triggered when the Engine Control Module (ECM) detects an intermittent signal from the throttle/pedal position sensor/switch A.
The throttle/pedal position sensor/switch A is responsible for sending a signal to the ECM about the position of the throttle or pedal. An intermittent circuit indicates that the signal is not consistent, which can affect engine performance.
• Check Engine Light is on
• Erratic or poor engine performance
• Unstable idle
• Faulty throttle/pedal position sensor
• Wiring issues such as frayed or loose connections
• Faulty 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 connections to the sensor.
• Test the throttle/pedal position sensor for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the throttle/pedal position sensor.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain wiring harnesses.
• Ensure connections are secure and free from corrosion.
• Perform routine sensor checks.
Sensor Issue
• Avoid driving at high speeds until the issue is resolved.
• Consult with a professional mechanic if unsure about repairs.
Check with your vehicle manufacturer for specific warranty coverage on sensors.
This code has been common in vehicles with electronic throttle control systems since the introduction of OBD-II standards.
Moderate – While the vehicle may still be drivable, it can lead to poor performance and should be addressed soon.
Ignoring this code can lead to unsafe driving conditions due to unpredictable throttle response.
• Engine running
• Vehicle stationary
The throttle/pedal position sensor is typically located on the throttle body or the accelerator pedal assembly.
Q: Can I drive with a P0124 code?
A: It's possible to drive, but it is not recommended due to potential performance issues.
Q: How do I reset the P0124 code?
A: After repairs, use an OBD-II scanner to clear the code from the ECM.
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