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P0572 Ford Code - Brake Switch 'A' Circuit Low

Quick Answer

The P0572 Ford diagnostic trouble code indicates an issue with the brake switch 'A' circuit being detected as low. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning brake light relay. 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 Ford indicates Brake Switch 'A' Circuit Low.
Common causes
Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning brake light relay.
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 12, 2024
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Code P0572 Ford Description

The P0572 Ford diagnostic trouble code indicates an issue with the brake switch 'A' circuit being detected as low. The brake switch is a crucial component of the vehicle's braking system, as it is responsible for activating the brake lights when the brake pedal is pressed. When the brake switch 'A' circuit is detected as low, it means that the voltage signal coming from the brake switch is lower than the expected range.

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

Common Causes of P0572 Ford

  1. Faulty brake switch
  2. Damaged wiring or connectors in the brake switch circuit
  3. Malfunctioning brake light relay
  4. Corrosion or debris in the brake switch circuit
  5. Issues with the vehicle's PCM (Powertrain Control Module)

Symptoms of P0572 Ford

  1. Brake lights not illuminating when the brake pedal is pressed
  2. Check engine light illuminated on the dashboard
  3. Inability to shift out of park
  4. Cruise control not functioning properly
  5. ABS or traction control warning lights activated

How to Fix P0572 Ford

  1. Begin by locating the brake switch, typically located near the brake pedal assembly.
  2. Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections.
  3. Test the brake switch using a multimeter to check for proper voltage signals.
  4. If the brake switch is faulty, replace it with a new one and ensure it is properly adjusted to activate when the brake pedal is pressed.
  5. Clear the diagnostic trouble codes using an OBD-II scanner and test drive the vehicle to confirm the issue has been resolved.

Cost to Fix P0572 Ford

The typical repair costs for addressing a P0572 Ford code can range from $100 to $300, depending on the specific cause of the issue and the cost of replacement parts. Labor costs can vary based on the shop's hourly rates and the complexity of the repair process. It's recommended to consult with a trusted mechanic or auto repair shop to get an accurate estimate for your specific vehicle.

What does this mean?

Tech Notes for P0572 Ford

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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Information for Specific Ford Models

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.

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