P0571 2007 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 2007 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.
Code P0571 2007 Ford Fusion Description
What are the Possible Causes of the DTC P0571 2007 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 2007 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0571 2007 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.
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Frequently Asked Questions about P0571 2007 Ford Fusion Code
1. What does the OBDII code P0571 mean on a 2007 Ford Fusion?
It indicates a problem with the Brake Switch 'A' Circuit, which monitors the brake pedal position and its electrical signal.
2. What are the common symptoms of code P0571 on a 2007 Ford Fusion?
Symptoms may include the brake lights not functioning properly, cruise control malfunction, and the ABS or traction control warning light illuminating.
3. What causes the P0571 code on a 2007 Ford Fusion?
Common causes include a faulty brake light switch, damaged wiring or connectors, or a blown fuse in the brake switch circuit.
4. Can a P0571 code affect cruise control operation?
Yes, a malfunction in the brake switch circuit can disable cruise control, as the system relies on the brake switch for proper operation.
5. How do I diagnose the P0571 code on my Ford Fusion?
Start by inspecting the brake light switch, wiring, and connectors for damage or corrosion. Check the brake lights and test the switch with a multimeter.
6. How do I fix the P0571 code on a 2007 Ford Fusion?
Common fixes include replacing a faulty brake light switch, repairing damaged wiring, or replacing a blown fuse.
7. Is it safe to drive with a P0571 code on a 2007 Ford Fusion?
While the car may still be drivable, issues like non-functioning brake lights or cruise control can compromise safety and should be addressed promptly.
8. How much does it cost to repair a P0571 code on a Ford Fusion?
The cost varies but typically ranges from $50 to $150 for parts and labor, depending on whether the brake light switch or wiring needs replacement.
9. Can a faulty brake light switch trigger other warning lights?
Yes, a faulty brake light switch can trigger ABS, traction control, or stability control warning lights due to its role in these systems.
10. Do I need special tools to fix the P0571 code on a 2007 Ford Fusion?
Basic tools like a multimeter, screwdriver, and socket set are usually sufficient for diagnosing and repairing this issue.
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