P0571 code — how to fix error fast

The P0571 code is among those OBD2 error codes that drivers are rarely familiar with, and it’s not always that easy to fix the code. If you are confused about the P0571 code meaning and how it affects the various systems in your car, our team will help you out through this guide.

We’ve decided to list all the main reasons behind the code along with the ways of fixing it and preventing it from happening again. But first, we need to deal with the diagnostic part, so let’s jump straight into it.

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What does the P0571 code mean?

The P0571 code is a generic powertrain code that indicates a problem with the brake switch circuit. This code is often accompanied by symptoms such as the inability to shift gears, cruise control not working, or the brake lights not turning on. Since the brake switch is an integral part of the vehicle’s safety system, it’s critical to address any issues with this code promptly.

As you can see, the problem is not only that the brake lights of your car may not glow up or something – it can be far worse. The cruise control system also uses this switch when you decide to shut the system off, and it’s also used in cars with an automatic gearbox for shifting the car from the “park” gear to the drive gear. So, it’s essential to get to the bottom of it, and there’s no better way to do that than by looking at the possible reasons behind it.

What causes the P0571 code

Since there are numerous possible reasons behind the code P0571, we’ll do our best to give you a complete overview of each. Based on our research, these are the most common and obvious causes that may trigger the code P0571 in your car:

Faulty brake switch

A faulty brake switch is the most common cause of the P0571 code. The brake switch is responsible for communicating with the vehicle’s computer to indicate when the brake pedal is being pressed. If the switch is malfunctioning or not working correctly, the computer won’t receive the signal, and the code will appear.

Damaged wiring or connectors

If the wiring or connectors in the brake switch circuit are damaged or corroded, this can also cause the P0571 code to appear. In some cases, the wiring may become frayed or broken, which can disrupt the signal between the brake switch and the computer.

Failed brake light bulbs

If the brake light bulbs are not working, this can cause the P0571 code to appear. Since the brake switch relies on the brake lights to communicate with the computer, a burned-out bulb can disrupt the signal.

Which car models does the P0571 code affect the most?

The P0571 code can appear in any vehicle, but it’s most commonly found in certain car models. Some of the cars that are most likely to experience this issue include:

• Ford Edge: The Ford Edge has been known to experience issues with the brake pedal position switch circuit, leading to the P0571 code.
• Chevy Silverado: Some models of the Chevrolet Silverado have also been known to experience problems with the brake pedal position switch circuit, resulting in the P0571 code.
• Jeep Grand Cherokee: The Jeep Grand Cherokee is another vehicle that can be affected by this code due to issues with the brake pedal position switch circuit.

How to diagnose the P0571 code

Just like there are multiple symptoms and possible causes of the code P0571, there are several ways of diagnosing the issue by pinpointing the root cause of the problem. Here are some of the best ways you can get to the bottom of it:

Check the brake switch

The first step in diagnosing the P0571 code is to check the brake switch. Using a multimeter, the mechanic will test the switch to ensure that it’s functioning correctly. If the switch isn’t working correctly, it will need to be replaced.

Inspect the wiring and connectors

If the brake switch is working correctly, the mechanic will need to inspect the wiring and connectors in the brake switch circuit. They’ll look for signs of damage or corrosion and repair or replace any damaged components.

Check the brake light bulbs

Finally, the mechanic will check the brake light bulbs to ensure that they’re working correctly. If a bulb is burned out, it will need to be replaced.

How to fix the P0571 code

Once the problem has been diagnosed, it’s time to fix the P0571 code. Here are the most common solutions based on what you can see as the culprit of the issue:

Replace the brake switch

If the brake switch is faulty, it will need to be replaced. This is a relatively simple fix that can be completed in a few minutes. it’s the most common reason behind the code and fixing it won’t set you back for too much in repair bills.

Repair the wiring or connectors

If the wiring or connectors are damaged, they’ll need to be repaired or replaced. This is a more complex fix that may require the assistance of a professional mechanic.

Replace the brake light bulbs

If the brake light bulbs are burned out, they’ll need to be replaced. This is a simple fix that can be completed in a few minutes.

How to prevent the P0571 code

The best way to prevent the P0571 code from appearing is to perform routine maintenance on your vehicle. Here are some preventative measures you can take:

• Check your brake lights regularly
• Perform regular brake maintenance
• Check the vehicle’s electrical systems

Keeping your vehicle’s electrical system in good condition can also help prevent the P0571 code from appearing. Make sure to have your battery and alternator checked regularly and replace any damaged wiring or connectors promptly.

By understanding the causes, symptoms, and fixes for the P0571 code, you can take steps to prevent this issue from occurring in your vehicle. If you do encounter this code, don’t panic – follow the steps outlined in this guide to diagnose and fix the problem quickly and efficiently.

Our take

The code P0571 is one of those OBD2 codes that may look harmless at first but could lead to headaches and serious repair bills in the long run. So, we hope this guide will set you on the right track when it comes to finding the source of the code and dealing with it.

We know it’s not easy to check your brake lights regularly, but at least doing that along with the rest of our recommended prevention methods can save you the trouble of engaging the gear or using your cruise control system.