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P0504 error code brake pedal position sensor "A" circuit malfunction

The P0504 error code is an error code that indicates that a fault has been detected in the vehicle's brake pedal position sensor "A" circuit. This error usually indicates that there is a connection problem with the vehicle's brake pedal position sensor or with this sensor. Here are the details about the P0504 error code:


  1. Error Meaning:

    • The P0504 trouble code indicates that a fault has been detected in the vehicle's brake pedal position sensor "A" circuit.



  1. Possible Causes:

    • Brake pedal position sensor fault.

    • A short in the brake pedal position sensor circuit.

    • Abnormality in the signal coming to the brake pedal position sensor circuit.


  1. Symptoms:

    • Problems with the brake system.

    • Vehicle not moving or having difficulty.

    • Acceleration or gear shifting problems.



  1. How to Identify the Error Code:

    • It can be read by connecting a scanner to the vehicle's OBD-II port.


  1. Errors Made During Correction:

    • Brake pedal position sensor replacement is not done even though it is required.

    • Overlooking the circuit error.


P0504

  1. Error Code Severity:

    • Since the brake pedal position sensor affects the vehicle's braking system, the error can be serious and cause safety issues.



  1. Repairs to be done to resolve the error:

    • Brake pedal position sensor replacement.

    • Elimination of short circuit in brake pedal position sensor circuit.

    • Solving the problem caused by signal abnormalities.


  1. Things to Consider:

    • Checking the brake pedal position sensor connections and wiring.

    • Checking whether the brake pedal position sensor is working properly.



If you are experiencing error code P0504, it is important to consult a qualified mechanic or repair shop to resolve the issue. The brake system is critical to the safe and proper operation of your vehicle.

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