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Engine-Codes – Scion – P0571 Scion

P0571 Scion Code - Brake Switch 'A' Circuit

Quick Answer

The P0571 diagnostic trouble code for Scion 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 circuit. 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 Scion 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 circuit.
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 17, 2024
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Code P0571 Scion Description

The P0571 diagnostic trouble code for Scion vehicles refers to an issue with the Brake Switch 'A' Circuit. The brake switch is a crucial component in the vehicle's braking system, as it is responsible for activating the brake lights when the brake pedal is pressed. When this code is triggered, it indicates that there is a malfunction in the circuit related to the brake switch. This can lead to various issues with the vehicle's braking system and overall performance.

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

Common Causes of P0571 Scion

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

Symptoms of P0571 Scion

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Inability to shift out of park.
  3. Cruise control not disengaging when the brakes are applied.
  4. Check Engine Light illuminated on the dashboard.

How to Fix P0571 Scion

  1. Begin by diagnosing the issue using a scan tool to confirm the P0571 code.
  2. Inspect the brake switch and its wiring for any visible damage or corrosion.
  3. Test the brake switch using a multimeter to check for continuity and proper operation.
  4. Replace the brake switch if it is found to be faulty.
  5. Clear the trouble code and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0571 Scion

The typical repair costs for addressing a P0571 code in a Scion vehicle can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Additionally, factors such as the vehicle's make and model, as well as the engine type, can also impact the overall repair costs.

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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.

Frequently Asked Questions about P0571 Scion Code

1. What does the OBDII code P0571 mean for a Scion?

P0571 indicates an issue with the Brake Switch 'A' Circuit, which monitors the brake pedal's position and function for systems like cruise control and brake lights.

2. What are the common symptoms of code P0571 on a Scion?

Symptoms may include non-functional cruise control, brake lights staying on or not working, and the Check Engine Light illuminating.

3. What causes code P0571 to appear on a Scion?

Common causes include a faulty brake light switch, damaged wiring or connectors in the brake switch circuit, or a blown fuse related to the brake system.

4. Can driving with code P0571 damage my Scion?

While the car may still be drivable, failure to address this code can compromise safety systems like brake lights and cruise control, which could pose risks.

5. How can I diagnose code P0571 on my Scion?

Start by inspecting the brake light switch, wiring, and connectors for damage. Use a multimeter to check for proper voltage and continuity in the circuit.

6. How do I fix code P0571 on a Scion?

Repairs may involve replacing a faulty brake light switch, repairing damaged wiring, or replacing a blown fuse.

7. Is replacing the brake light switch expensive for a Scion?

Replacing the brake light switch is generally inexpensive, with parts costing $20-$50 and minimal labor required.

8. Can a dirty brake pedal sensor cause code P0571?

Yes, dirt or debris can interfere with the brake switch's function. Cleaning the sensor may resolve the issue in some cases.

9. Will clearing the code P0571 fix the issue on my Scion?

Clearing the code without addressing the underlying problem will result in the code returning. The root cause must be repaired.

10. Does code P0571 affect my Scion’s cruise control?

Yes, a malfunctioning brake switch can cause the cruise control system to become inoperable for safety reasons.

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