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Code C0567

Symptoms

• Increased effort required to press the brake pedal

• Brake warning light illuminated on the dashboard

• Reduced braking performance

Common Causes

• Faulty brake booster solenoid

• Damaged or corroded wiring or connectors

• Blown fuse or relay related to the brake system

Glossary

Brake Booster: A device that uses vacuum to help apply force to the brakes.

Solenoid: An electromechanical device that controls a valve or switch.

Related Codes

• C0568

• C0569

Laymans terms

This code means that there is a problem with the part of the car that helps you brake easily. It's like when you press a button and nothing happens because the wire is not connected properly.

Explanation

The C0567 code is triggered when the brake booster solenoid circuit is detected to have low voltage, indicating a potential electrical issue.

Technical description

The brake booster solenoid is an electrical component that controls the vacuum supply to the brake booster, which assists in braking. A low circuit condition indicates insufficient voltage or a break in the electrical connection, which can lead to reduced braking efficiency.

Diagnosis steps

• Check for any blown fuses related to the brake system.

• Inspect the wiring and connectors for damage or corrosion.

• Test the brake booster solenoid for proper operation.

Repair procedures

• Replace the faulty brake booster solenoid.

• Repair or replace damaged wiring or connectors.

• Replace any blown fuses or faulty relays.

Tools required

• Multimeter

• Socket set

• Wire stripper/crimper

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Regularly inspect brake system components.

• Ensure electrical connections are clean and secure.

• Follow recommended maintenance schedules.

Error code type

Sensor Issue

User experience recommendations

• Have your vehicle inspected by a professional mechanic.

• Avoid driving the vehicle until the issue is resolved.

Warranty information

Check with your vehicle manufacturer for warranty coverage on brake system components.

Historical data

This code has been associated with vehicles that have experienced electrical issues in the brake system, particularly in models with advanced braking technologies.

Urgency level

High – Brake system issues can significantly affect vehicle safety.

Legal and safety notice

Driving with a malfunctioning brake system can be dangerous and is not recommended. Ensure repairs are made promptly.

Testing conditions

• Vehicle ignition on

• Brake pedal depressed

Component location

The brake booster solenoid is typically located near the brake master cylinder in the engine compartment.

FAQs

Q: Can I drive with a C0567 code?
A: It's not recommended to drive with this code as it can affect braking performance.

Q: How can I reset the C0567 code?
A: Fix the underlying issue, then use an OBD-II scanner to clear the code.

Last updated: Jun 8, 2026 • Source: internal database
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