AutoCodes – Ford – P0573 2011 Ford Fusion

P0573 2011 Ford Fusion Code - Brake Switch 'A' Circuit High

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, Brake Switch harness is open or shorted, Brake Switch circuit poor electrical connection. 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: P0573 2011 Ford Fusion indicates Brake Switch 'A' Circuit High.
Common causes: Common causes include Faulty Brake Switch, Brake Switch harness is open or shorted, Brake Switch circuit poor electrical connection.
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 2,216

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 Apr 28, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0573 2011 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 P0573 2011 Ford Fusion - Brake Switch 'A' Circuit High - AutoCodes.com — P0573 2011 Ford Fusion Code - Brake Switch 'A' Circuit High

What does this mean?

What are the Possible Causes of the DTC P0573 2011 Ford Fusion?

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

How to Fix the DTC P0573 2011 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 P0573 2011 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 P0573 2011 Ford Fusion code?

Need more information on how to fix the P0573 2011 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0573 2011 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 P0573 2011 Ford Fusion Code

1. What does OBDII code P0573 on a 2011 Ford Fusion indicate?

The code P0573 for a 2011 Ford Fusion refers to an issue with the Brake Switch 'A' Circuit High.

2. What are the common symptoms of OBDII code P0573 in a 2011 Ford Fusion?

Common symptoms of code P0573 may include the brake lights staying on constantly, cruise control not functioning, and the inability to shift out of park.

3. What are the possible causes of OBDII code P0573 in a 2011 Ford Fusion?

Potential causes of code P0573 can include a faulty brake light switch, a short circuit in the brake switch circuit, or a malfunctioning PCM (powertrain control module).

4. How can I diagnose the OBDII code P0573 on my 2011 Ford Fusion?

Diagnosing code P0573 involves checking the brake light switch for proper operation, inspecting the wiring and connections for any damage, and using a scan tool to monitor the brake switch signal to the PCM.

5. Can I drive my 2011 Ford Fusion with OBDII code P0573?

It is not recommended to drive your Ford Fusion with code P0573 as it can affect the vehicle's safety systems and lead to potential issues with the brake lights and shifting.

6. How do I repair OBDII code P0573 on a 2011 Ford Fusion?

To repair code P0573, you may need to replace the brake light switch, repair any damaged wiring or connections, or have a professional diagnose and fix any underlying issues with the PCM.

7. Is it easy to fix OBDII code P0573 in a 2011 Ford Fusion by myself?

Repairing code P0573 may require basic automotive knowledge and tools. If you are comfortable working on your car's electrical system, you may be able to fix the issue yourself by following a repair manual or online guides.

8. Will resetting the OBDII code P0573 on my 2011 Ford Fusion make it go away permanently?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing code P0573 is not addressed, the code is likely to reappear once the vehicle is driven again.

9. Can a bad brake switch cause OBDII code P0573 on a 2011 Ford Fusion?

Yes, a faulty brake light switch is a common cause of OBDII code P0573 in a 2011 Ford Fusion. It is recommended to inspect and replace the brake switch if necessary to resolve the issue.

10. How much does it cost to repair OBDII code P0573 on a 2011 Ford Fusion?

The cost of repairing code P0573 can vary depending on the underlying cause and whether you choose to fix it yourself or take it to a professional. Costs may include parts, labor, and diagnostic fees.