Engine-Codes.com
Engine-Codes – Toyota – P0571 Toyota

P0571 Toyota Code - Brake Switch 'A' Circuit

Quick Answer

The P0571 diagnostic trouble code (DTC) for Toyota vehicles specifically refers to the Brake Switch 'A' Circuit. Common causes include Faulty brake light switch, Damaged wiring in the brake light circuit, Malfunctioning brake light switch sensor. 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 Toyota indicates Brake Switch 'A' Circuit.
Common causes
Common causes include Faulty brake light switch, Damaged wiring in the brake light circuit, Malfunctioning brake light switch sensor.
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 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0571 Toyota Description

The P0571 diagnostic trouble code (DTC) for Toyota vehicles specifically refers to the Brake Switch 'A' Circuit. This code indicates that there is an issue with the brake light switch circuit in the vehicle. The brake light switch is a crucial component that informs the vehicle's computer when the brake pedal is pressed, allowing the brake lights to illuminate. When this circuit malfunctions, it can lead to various issues related to the vehicle's braking system.

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

Common Causes of P0571 Toyota

  1. Faulty brake light switch.
  2. Damaged wiring in the brake light circuit.
  3. Malfunctioning brake light switch sensor.
  4. Corrosion or loose connections in the circuit.
  5. Electrical issues in the vehicle's wiring system.

Symptoms of P0571 Toyota

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Cruise control not disengaging when the brake pedal is pressed.
  3. Brake lights staying on constantly.
  4. Check Engine Light illuminated on the dashboard.

How to Fix P0571 Toyota

  1. Begin by locating the brake light switch, typically located near the brake pedal.
  2. Disconnect the electrical connector from the brake light switch.
  3. Test the continuity of the brake light switch using a multimeter to determine if it is functioning correctly.
  4. If the brake light switch is faulty, replace it with a new one and reconnect the electrical connector.
  5. Clear the diagnostic trouble codes using an OBD-II scanner and test the brake lights and cruise control functionality to ensure they are working properly.

Cost to Fix P0571 Toyota

The typical repair costs for addressing the P0571 code can range from $50 to $200, depending on the specific cause of the issue and the cost of the replacement parts. This estimate includes the cost of the brake light switch and any necessary labor for the repair. However, it is important to note that the actual cost can vary based on factors such as location, vehicle make and model, and the rates of the auto repair shop. It is recommended to consult with a qualified mechanic to get a more accurate estimate based on your specific situation.

Need more information about the P0571 Toyota code?

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

Need Help with the Code?

Get the P0571 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota 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.

Frequently Asked Questions about P0571 Toyota Code

1. What are the common symptoms of OBDII code P0571 in a Toyota related to the Brake Switch 'A' Circuit?

- Common symptoms include the brake lights staying on constantly, the inability to shift out of park, cruise control issues, and the check engine light illuminating.

2. What are the possible causes of OBDII code P0571 in a Toyota?

- The main causes of this code include a faulty brake light switch, wiring issues in the brake light circuit, a malfunctioning cruise control system, or a problem with the brake control module.

3. How can I diagnose the OBDII code P0571 in my Toyota related to the Brake Switch 'A' Circuit?

- To diagnose this code, you can start by checking the brake light switch for proper operation, inspecting the wiring for any damage or corrosion, testing the cruise control system, and scanning the vehicle's computer for specific fault codes.

4. Can I continue driving my Toyota with OBDII code P0571 present?

- It is not recommended to drive your Toyota with this code present, as it can affect the proper functioning of critical systems like the brake lights and cruise control. It's best to address the issue promptly.

5. How can I repair OBDII code P0571 in my Toyota?

- The repair for this code typically involves replacing the faulty brake light switch, repairing any damaged wiring, addressing any cruise control system issues, or recalibrating the brake control module as necessary.

6. Is it possible to reset OBDII code P0571 in my Toyota without fixing the underlying issue?

- While you can clear the fault code with an OBDII scanner, the code is likely to reappear if the root cause is not addressed. It's crucial to fix the issue to prevent further problems.

7. Can a DIY enthusiast fix OBDII code P0571 in a Toyota at home?

- Depending on your skills and experience, you may be able to address this code at home by replacing the brake light switch or checking the wiring. However, more complex issues may require professional assistance.

8. How much does it typically cost to repair OBDII code P0571 in a Toyota at a mechanic or dealership?

- The cost to repair this code can vary depending on the root cause of the issue, but it may range from $100 to $300 at a mechanic or dealership, including parts and labor.

9. Are there any preventive measures to avoid OBDII code P0571 in my Toyota in the future?

- To prevent this code from reoccurring, you can perform regular maintenance checks on your brake light switch, ensure proper wiring integrity, and address any cruise control issues promptly.

10. Will fixing OBDII code P0571 improve the overall performance and safety of my Toyota?

- Yes, addressing this code will not only resolve the specific issues related to the Brake Switch 'A' Circuit but also improve the overall safety and performance of your Toyota by ensuring proper brake light functionality and cruise control operation.

Discuss the causes and fixes for P0571 Toyota OBDII Code

Submit a New Comment

Code P0571 Toyota comments

No comments found for this page.