P0571 Code - Cruise Control Brake Switch Circuit
Quick Answer
The P0571 diagnostic trouble code (DTC) indicates a problem with the cruise control brake switch circuit. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning PCM. 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 indicates Cruise Control Brake Switch Circuit.
- Common causes
- Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning PCM.
- 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 Description
The P0571 diagnostic trouble code (DTC) indicates a problem with the cruise control brake switch circuit. This code is set when the powertrain control module (PCM) detects a malfunction in the circuit that controls the cruise control system's interaction with the brake pedal. The brake switch is a crucial component that informs the PCM when the brake pedal is pressed, allowing the cruise control system to disengage and ensuring safe operation of the vehicle.
Common Causes of P0571
- Faulty brake switch
- Damaged wiring or connectors in the brake switch circuit
- Malfunctioning PCM
- Corrosion in the brake switch circuit
- Loose or disconnected brake switch
Symptoms of P0571
- Inoperative cruise control system
- Brake lights staying on constantly
- Cruise control disengaging unexpectedly
- Check Engine Light illuminated
- Difficulty shifting out of park
How to Fix P0571
- Begin by locating the brake switch, typically located near the brake pedal assembly.
- Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
- Test the brake switch using a multimeter to ensure it is functioning properly. Replace if faulty.
- Clear the DTC using a scan tool and test drive the vehicle to verify that the issue has been resolved.
- If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the issue.
Cost to Fix P0571
The cost of repairing a P0571 code can vary depending on the specific cause of the issue. In general, replacing a faulty brake switch or repairing damaged wiring may cost between $50 to $200 for parts, with additional labor costs ranging from $100 to $200. However, it's important to note that labor rates at auto repair shops can vary widely, so it's recommended to obtain quotes from multiple sources to get an accurate estimate. Additionally, diagnostic time and labor rates can impact the final cost, so it's advisable to consult with a professional technician for a precise quote.
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Code P0571 Information for Specific Makes
- P0571 Acura — Brake Pedal Position Switch Circuit Malfunction
- P0571 BMW — Brake Light Switch Plausibility
- P0571 Buick — Cruise Control Brake Switch Circuit
- P0571 Cadillac — Cruise Control Brake Switch Circuit
- P0571 Chevrolet — Cruise Control Brake Switch Circuit
- P0571 Chrysler — Brake Switch 1 Performance
- P0571 Dodge — Brake Switch 1 Performance
- P0571 Ford — Brake Switch 'A' Circuit
- P0571 GMC — Cruise Control Brake Switch Circuit
- P0571 Honda — Brake Pedal Position Switch Circuit Malfunction
- P0571 Hyundai — Brake Switch 1 Performance
- P0571 Isuzu — No Brake Switch Signal
- P0571 Jeep — Brake Switch 1 Performance
- P0571 KIA — Brake Switch 'A' Circuit
- P0571 Lexus — Brake Switch 'A' Circuit
- P0571 Lincoln — Brake Switch 'A' Circuit
- P0571 Mazda — Brake Switch Circuit Malfunction
- P0571 Mercedes-Benz — Cruise Control/Brake Switch 'A' Circuit Malfunction
- P0571 Mercury — Brake Switch 'A' Circuit
- P0571 MINI — Brake Light Switch Plausibility
- P0571 Mitsubishi — Brake Switch 1 Performance
- P0571 Ram — Brake Switch 1 Performance
- P0571 Saturn — Cruise Control Brake Switch Circuit
- P0571 Scion — Brake Switch 'A' Circuit
- P0571 Suzuki — Brake Switch Circuit
- P0571 Toyota — Brake Switch 'A' Circuit
- P0571 Volkswagen — Brake Switch 'A' Circuit
Frequently Asked Questions about P0571 Code
What does the OBDII code P0571 mean?
1. P0571 indicates an issue with the Cruise Control Brake Switch Circuit, meaning the vehicle's computer has detected a problem with the electrical signal from the brake switch that deactivates cruise control when the brake pedal is pressed. 2.
What are the common symptoms of code P0571?
Common symptoms include the cruise control not engaging or disengaging properly, illuminated brake lights that stay on or fail to turn on, and the Check Engine Light or other warning lights on the dashboard. 3.
What causes the P0571 code to appear?
The P0571 code can be caused by a faulty brake light switch, damaged wiring or connectors in the brake switch circuit, a blown fuse, or a misaligned or stuck brake pedal. 4.
Can I drive with code P0571 active?
While you may still be able to drive, the cruise control system may not function properly, and your brake lights could malfunction, creating a safety hazard. It’s best to address the issue promptly. 5.
How do I diagnose the P0571 code?
Diagnosis involves inspecting the brake light switch for damage or misalignment, checking the wiring and connectors for continuity or corrosion, testing the fuse, and verifying the cruise control system’s operation. 6.
How do I fix the P0571 code?
Common fixes include replacing the brake light switch, repairing or replacing damaged wiring or connectors, realigning the brake pedal position, or replacing a blown fuse. 7.
How much does it typically cost to repair a P0571 code?
Repair costs vary depending on the specific cause, but replacing a brake light switch usually costs between $50 and $200, including parts and labor. 8.
Can a faulty brake light bulb cause the P0571 code?
No, a faulty brake light bulb typically won’t cause P0571. The code is related to the brake switch circuit, not the light bulbs themselves. 9.
Will clearing the P0571 code fix the problem?
Clearing the code may turn off the Check Engine Light temporarily, but the underlying issue must be resolved to prevent the code from returning. 10.
Does the P0571 code affect other vehicle systems?
Yes, besides cruise control, the P0571 code can impact the brake lights, which are critical for safe driving, and may interfere with systems that rely on brake switch signals, such as traction control or stability control.
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