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P0572 2010 Ford Fusion Code - Brake Switch 'A' Circuit Low

Quick Answer

The P0572 diagnostic trouble code for a 2010 Ford Fusion indicates a problem with the Brake Switch 'A' Circuit being low. Common causes include Faulty brake light switch, Wiring issues such as shorts or open circuits in the brake light circuit, Corroded or damaged electrical connectors related to the brake switch. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0572 2010 Ford Fusion indicates Brake Switch 'A' Circuit Low.
Common causes
Common causes include Faulty brake light switch, Wiring issues such as shorts or open circuits in the brake light circuit, Corroded or damaged electrical connectors related to the brake switch.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0572 2010 Ford Fusion Description

The P0572 diagnostic trouble code for a 2010 Ford Fusion indicates a problem with the Brake Switch 'A' Circuit being low. In simpler terms, this code is triggered when the power signal from the brake light switch falls below the specified range set by the vehicle's computer. The brake light switch is a vital component that detects when the brake pedal is depressed, sending a signal to the vehicle's computer to activate the brake lights and other related systems.

OBDII Code P0572 2010 Ford Fusion - Brake Switch 'A' Circuit Low
P0572 2010 Ford Fusion Code - Brake Switch 'A' Circuit Low

Common Causes of P0572 2010 Ford Fusion

  1. Faulty brake light switch.
  2. Wiring issues such as shorts or open circuits in the brake light circuit.
  3. Corroded or damaged electrical connectors related to the brake switch.
  4. Defective brake light bulb causing a short circuit.
  5. Issues with the vehicle's computer or control module.

Symptoms of P0572 2010 Ford Fusion

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Inability to engage or disengage the cruise control system.
  3. Illumination of the brake warning light on the dashboard.
  4. Code P0572 stored in the vehicle's computer memory.

How to Fix P0572 2010 Ford Fusion

  1. Begin by locating the brake light switch, usually mounted near the brake pedal under the dashboard.
  2. Disconnect the electrical connector from the brake light switch.
  3. Test the brake light switch for continuity and proper operation using a multimeter.
  4. Replace the brake light switch if it is found to be faulty.
  5. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.

Cost to Fix P0572 2010 Ford Fusion

The typical repair costs for addressing a P0572 code on a 2010 Ford Fusion can range from $100 to $300, depending on the specific cause of the issue and the labor rates at the auto repair shop. Parts for replacing the brake light switch may cost between $50 and $100, with additional costs for any necessary wiring repairs or connector replacements. It's advisable to consult with a professional mechanic for an accurate estimate based on the individual circumstances of the vehicle.

What does this mean?

Tech Notes for P0572 2010 Ford Fusion

Check the bulb and fuse first, if they are good replace the stop lamp switch (it is located behind the brake pedal)

When is the Code Detected?

The P0572 codes is set when the stop light switch signal is too low.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0572 2010 Ford Fusion Code

1. What are the common symptoms of OBDII code P0572 in a 2010 Ford Fusion?

The common symptoms include the brake lights staying on constantly, difficulty shifting out of park, cruise control not working, and the Check Engine Light being illuminated.

2. What does the OBDII code P0572 Brake Switch 'A' Circuit Low mean in a 2010 Ford Fusion?

This code indicates that the brake switch 'A' circuit is registering a low voltage signal, which can affect the proper functioning of the brake lights and other related systems.

3. What are the possible causes of OBDII code P0572 in a 2010 Ford Fusion?

Potential causes include a faulty brake light switch, damaged wiring or connectors in the brake light circuit, a blown fuse, or a problem with the brake control module.

4. How can I diagnose the OBDII code P0572 in my 2010 Ford Fusion?

You can start by checking the brake light switch for proper operation, inspecting the wiring and connectors for any damage, testing the brake light circuit for continuity, and scanning the vehicle's computer for fault codes.

5. Can I still drive my 2010 Ford Fusion with OBDII code P0572?

It is not recommended to drive the vehicle with this code present, as it can affect the proper operation of the brake lights and other safety systems. It's best to address the issue promptly.

6. How can I repair OBDII code P0572 in my 2010 Ford Fusion?

Depending on the cause, you may need to replace the brake light switch, repair any damaged wiring or connectors, replace a blown fuse, or address any issues with the brake control module.

7. Will resetting the Check Engine Light resolve OBDII code P0572 in my 2010 Ford Fusion?

Simply resetting the Check Engine Light may temporarily turn it off, but it won't fix the underlying issue causing the code. It's important to diagnose and repair the problem to prevent it from recurring.

8. Is OBDII code P0572 a serious issue in a 2010 Ford Fusion?

While it may not cause immediate drivability issues, ignoring this code can lead to safety concerns due to malfunctioning brake lights and other related systems. It's best to address it promptly.

9. Can a DIY enthusiast fix OBDII code P0572 in a 2010 Ford Fusion?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code. However, complex electrical issues may require professional assistance.

10. How much does it typically cost to repair OBDII code P0572 in a 2010 Ford Fusion?

The cost of repairs can vary based on the cause of the issue and whether you choose to do the repairs yourself or take your vehicle to a mechanic. Costs may include parts and labor.

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