P0571 Lexus Code - Brake Switch 'A' Circuit
Quick Answer
The P0571 code for Lexus vehicles specifically refers to an issue with the Brake Switch 'A' Circuit. Common causes include Faulty brake switch, Wiring issues in the brake switch circuit, Corrosion or damage to 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 Lexus indicates Brake Switch 'A' Circuit.
- Common causes
- Common causes include Faulty brake switch, Wiring issues in the brake switch circuit, Corrosion or damage to 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.
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Code P0571 Lexus Description
The P0571 code for Lexus vehicles specifically refers to an issue with the Brake Switch 'A' Circuit. This code indicates that there is a malfunction in the circuit that is responsible for detecting the status of the brake pedal. The brake switch is crucial for various systems in the vehicle, including the brake lights, cruise control, traction control, and the transmission shift interlock. When this circuit is compromised, it can lead to a range of performance issues and safety concerns.
Common Causes of P0571 Lexus
- Faulty brake switch
- Wiring issues in the brake switch circuit
- Corrosion or damage to the brake switch connections
- Electronic control module (ECM) malfunction
- Brake pedal position sensor failure
Symptoms of P0571 Lexus
- Brake lights not working properly
- Inability to shift out of park
- Cruise control not disengaging when braking
- Traction control system malfunction
- Check engine light illuminated
How to Fix P0571 Lexus
- Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the fault codes and test the brake switch and related components.
- Replace the faulty brake switch if it is determined to be the cause of the problem. This typically involves removing the old switch, disconnecting the wiring harness, and installing a new switch.
- Inspect the wiring in the brake switch circuit for any damage or corrosion. Repair or replace any compromised wiring.
- Check for any loose connections in the brake switch circuit and ensure they are securely fastened.
- Clear the fault codes from the vehicle's ECM and test the system to ensure proper functioning of the brake lights, cruise control, and transmission shift interlock.
Cost to Fix P0571 Lexus
The cost of repairing a P0571 code for a Lexus vehicle can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a faulty brake switch can cost between $50 and $150 for the part, with additional labor costs ranging from $50 to $150. Overall, the total repair cost for this issue could range from $100 to $300. Additionally, diagnostic time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.
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