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P0572 2012 Ford Fusion Code - Brake Switch 'A' Circuit Low

Quick Answer

The P0572 diagnostic trouble code (DTC) for a 2012 Ford Fusion indicates a problem with the Brake Switch 'A' Circuit being low. Common causes include Faulty brake switch, Damaged or corroded wiring in the brake switch circuit, Issues with the brake pedal position sensor. 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 2012 Ford Fusion indicates Brake Switch 'A' Circuit Low.
Common causes
Common causes include Faulty brake switch, Damaged or corroded wiring in the brake switch circuit, Issues with the brake pedal position sensor.
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 16, 2024
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Code P0572 2012 Ford Fusion Description

The P0572 diagnostic trouble code (DTC) for a 2012 Ford Fusion indicates a problem with the Brake Switch 'A' Circuit being low. The brake switch is a crucial component of the vehicle's braking system, as it sends a signal to the vehicle's electronic control module (ECM) when the brake pedal is depressed. This signal is used to activate the brake lights and disengage cruise control, among other functions.

OBDII Code P0572 2012 Ford Fusion - Brake Switch 'A' Circuit Low
P0572 2012 Ford Fusion Code - Brake Switch 'A' Circuit Low

Common Causes of P0572 2012 Ford Fusion

  1. Faulty brake switch.
  2. Damaged or corroded wiring in the brake switch circuit.
  3. Issues with the brake pedal position sensor.
  4. ECM software malfunction.
  5. Water or moisture intrusion in the brake switch circuit.

Symptoms of P0572 2012 Ford Fusion

  1. Brake lights not working properly or staying on continuously.
  2. Inability to disengage cruise control when the brake pedal is pressed.
  3. Difficulty shifting out of park.
  4. ABS or traction control warning lights illuminated on the dashboard.
  5. Vehicle may not start due to safety interlock system being activated.

How to Fix P0572 2012 Ford Fusion

  1. Begin by locating the brake switch, typically mounted near the brake pedal assembly.
  2. Inspect the wiring and connectors for any visible damage or corrosion.
  3. Test the brake switch using a multimeter to check for proper voltage levels.
  4. Replace the brake switch if it is found to be faulty.
  5. Clear the DTC with a scan tool and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0572 2012 Ford Fusion

The cost of repairing a P0572 code on a 2012 Ford Fusion can vary depending on the specific cause of the issue. In general, the price of a new brake switch can range from $20 to $50, while labor costs at an auto repair shop may amount to $80 to $150 per hour. Additional costs for diagnostic time and any necessary wiring repairs should also be factored in. Overall, the total repair cost for this issue could range from $100 to $300, but it's advisable to obtain a detailed quote from a reputable auto repair shop in your area.

What does this mean?

Tech Notes for P0572 2012 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.

Need more information about the P0572 2012 Ford Fusion code?

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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 2012 Ford Fusion Code

1. What are the common symptoms of OBDII code P0572 in a 2012 Ford Fusion?

The common symptoms of OBDII code P0572 in a 2012 Ford Fusion include issues with the brake lights not working properly, cruise control not functioning, and potential difficulty shifting out of park.

2. What does the 'Brake Switch 'A' Circuit Low' mean in relation to code P0572 on a 2012 Ford Fusion?

The 'Brake Switch 'A' Circuit Low' indicates that the brake switch circuit is registering a low voltage signal, which can affect various brake-related systems in the vehicle.

3. What are the possible causes of OBDII code P0572 in a 2012 Ford Fusion?

Possible causes of OBDII code P0572 in a 2012 Ford Fusion include a faulty brake light switch, damaged wiring or connectors in the brake light circuit, or a malfunctioning brake control module.

4. How can I diagnose the cause of OBDII code P0572 in my 2012 Ford Fusion?

You can diagnose the cause of OBDII code P0572 by inspecting the brake light switch for proper operation, checking the wiring and connectors for any damage or corrosion, and using a diagnostic scan tool to monitor the brake switch signal.

5. Can I still drive my 2012 Ford Fusion with OBDII code P0572 present?

It is not recommended to drive your 2012 Ford Fusion with OBDII code P0572 present, as it can affect the proper functioning of crucial brake-related systems in the vehicle.

6. How can I repair OBDII code P0572 in my 2012 Ford Fusion?

To repair OBDII code P0572 in your 2012 Ford Fusion, you may need to replace the brake light switch, repair any damaged wiring or connectors, or reset the brake control module using a diagnostic scan tool.

7. Will resetting the OBDII code P0572 in my 2012 Ford Fusion make it go away permanently?

Resetting the OBDII code P0572 in your 2012 Ford Fusion may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear.

8. Is it safe to continue driving my 2012 Ford Fusion if the brake lights are not working due to OBDII code P0572?

It is not safe to drive your 2012 Ford Fusion if the brake lights are not working due to OBDII code P0572, as it can pose a significant hazard to you and other drivers on the road.

9. How much does it typically cost to repair OBDII code P0572 in a 2012 Ford Fusion?

The cost to repair OBDII code P0572 in a 2012 Ford Fusion can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can OBDII code P0572 in a 2012 Ford Fusion cause other problems if left unrepaired?

If left unrepaired, OBDII code P0572 in a 2012 Ford Fusion can potentially cause other issues such as safety concerns due to malfunctioning brake lights, affecting the vehicle's overall performance and functionality.

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