Engine-CodesLincoln – P0571 Lincoln

P0571 Lincoln Code - Brake Switch 'A' Circuit

Quick Answer

The P0571 diagnostic trouble code for Lincoln vehicles refers to an issue with the Brake Switch 'A' Circuit. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Corrosion or moisture in the brake switch connections. 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 Lincoln indicates Brake Switch 'A' Circuit.
Common causes
Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Corrosion or moisture in the brake switch connections.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0571 Lincoln Description

The P0571 diagnostic trouble code for Lincoln vehicles refers to an issue with the Brake Switch 'A' Circuit. This code indicates that there is a problem with the electrical circuit associated with the brake switch, which is a crucial component in the vehicle's braking system. The brake switch is responsible for detecting when the brake pedal is pressed, sending a signal to the vehicle's computer system to activate the brake lights and potentially disable cruise control.

OBDII Code P0571 Lincoln - Brake Switch 'A' Circuit
P0571 Lincoln Code - Brake Switch 'A' Circuit

Common Causes of P0571 Lincoln

  1. Faulty brake switch.
  2. Damaged wiring or connectors in the brake switch circuit.
  3. Corrosion or moisture in the brake switch connections.
  4. Issues with the vehicle's computer system.

Symptoms of P0571 Lincoln

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Inability to disengage cruise control when braking.
  3. Check Engine Light illuminated on the dashboard.
  4. Difficulty shifting out of park.

How to Fix P0571 Lincoln

  1. Begin by diagnosing the issue using a diagnostic scanner to retrieve the specific trouble code and identify the underlying cause.
  2. Inspect the brake switch for any visible signs of damage or wear and test its functionality using a multimeter.
  3. Check the wiring and connectors in the brake switch circuit for any damage, corrosion, or loose connections.
  4. Replace the brake switch if it is found to be faulty, ensuring that the new switch is properly adjusted and connected.
  5. Clear the trouble code from the vehicle's computer system and test the brake lights and cruise control functionality to ensure that the issue has been resolved.

Cost to Fix P0571 Lincoln

The typical repair costs for addressing a P0571 code related to the Brake Switch 'A' Circuit can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a faulty brake switch and addressing related wiring or connector issues can range from $100 to $300. Additional costs may include diagnostic time and labor fees, which can add to the total repair bill. It's important to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model, as well as the extent of the repairs needed.

When is the Code Detected?

The P0571 codes is set when the stop light switch does not turn off even once the vehicle is driven.

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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.

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