AutoCodes – Ford – P0571 2010 Ford Fusion

P0571 2010 Ford Fusion Code - Brake Switch 'A' Circuit

Quick Answer

When the brake pedal is depressed, the stop light switch sends a signal to the Engine Control Module (ECM). Common causes include Faulty Brake Switch, Misadjusted brake switch, Brake Switch harness is open or shorted. 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: P0571 2010 Ford Fusion indicates Brake Switch 'A' Circuit.
Common causes: Common causes include Faulty Brake Switch, Misadjusted brake switch, Brake Switch harness is open or shorted.
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.

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Code Popularity 2,565

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0571 2010 Ford Fusion Description

When the brake pedal is depressed, the stop light switch sends a signal to the Engine Control Module (ECM). When the ECM receives this signal, it cancels the cruise control.

OBDII Code P0571 2010 Ford Fusion - Brake Switch 'A' Circuit - AutoCodes.com — P0571 2010 Ford Fusion Code - Brake Switch 'A' Circuit

What does this mean?

What are the Possible Causes of the DTC P0571 2010 Ford Fusion?

Faulty Brake Switch
Misadjusted brake switch
Brake Switch harness is open or shorted
Brake Switch circuit poor electrical connection

How to Fix the DTC P0571 2010 Ford Fusion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0571 2010 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0571 2010 Ford Fusion code?

Need more information on how to fix the P0571 2010 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0571 2010 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

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 P0571 2010 Ford Fusion Code

1. What are the common symptoms of OBDII code P0571 on a 2010 Ford Fusion?

The common symptoms of P0571 include the brake lights staying on constantly, difficulty shifting out of park, and the cruise control not operating properly.

2. What does the OBDII code P0571 Brake Switch 'A' Circuit mean on a 2010 Ford Fusion?

The P0571 code indicates a problem with the brake switch 'A' circuit, which is usually related to the brake light switch not functioning correctly.

3. What are the possible causes of OBDII code P0571 on a 2010 Ford Fusion?

Potential causes of P0571 include a faulty brake light switch, wiring issues in the brake light circuit, or a problem with the brake control module.

4. How can I diagnose the OBDII code P0571 on my 2010 Ford Fusion?

Diagnosing P0571 involves checking the brake light switch for proper operation, inspecting the wiring for any damage, and scanning the brake control module for fault codes.

5. Can I continue driving my 2010 Ford Fusion with the P0571 code?

It is not recommended to drive your vehicle with the P0571 code present, as it can affect the proper operation of the brake lights and other safety features.

6. How do I repair the OBDII code P0571 on my 2010 Ford Fusion?

To repair P0571, you may need to replace the brake light switch, repair any damaged wiring, or reprogram the brake control module as necessary.

7. Will resetting the OBDII code P0571 on a 2010 Ford Fusion make it go away permanently?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing P0571 is not fixed, the code is likely to return.

8. Can a DIY enthusiast fix the OBDII code P0571 on a 2010 Ford Fusion?

Depending on your skills and tools, a DIY enthusiast may be able to fix P0571 by replacing the brake light switch or checking the wiring, but more complex issues may require professional help.

9. How much does it typically cost to repair the OBDII code P0571 on a 2010 Ford Fusion?

The cost of repairing P0571 can vary depending on the cause of the issue, but it may range from around $50 to $200 for parts and labor.

10. What should I do if the OBDII code P0571 continues to come back on my 2010 Ford Fusion after repairs?

If P0571 keeps reappearing after repairs, it is advisable to have a professional mechanic perform a thorough diagnostic to identify and address any underlying issues causing the code to persist.