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Engine-Codes – Generic – P0572

P0572 Code - Brake Switch Circuit Low Voltage

Quick Answer

The P0572 diagnostic trouble code (DTC) indicates that there is a low voltage condition detected in the brake switch circuit. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Blown fuse related to 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
P0572 indicates Brake Switch Circuit Low Voltage.
Common causes
Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Blown fuse related to 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 14, 2024
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Code P0572 Description

The P0572 diagnostic trouble code (DTC) indicates that there is a low voltage condition detected in the brake switch circuit. The brake switch is a critical component of the vehicle's braking system, as it is responsible for activating the brake lights when the brake pedal is pressed. When the brake switch circuit is experiencing low voltage, it can lead to various issues with the vehicle's brake lights, cruise control system, and other safety features that rely on the brake switch signal.

OBDII Code P0572 - Brake Switch Circuit Low Voltage
P0572 Code - Brake Switch Circuit Low Voltage

Common Causes of P0572

  1. Faulty brake switch.
  2. Damaged wiring or connectors in the brake switch circuit.
  3. Blown fuse related to the brake switch circuit.
  4. Malfunctioning brake light relay.
  5. Corrosion or moisture in the brake switch circuit.

Symptoms of P0572

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Inoperative cruise control system.
  3. Dashboard warning light indicating a brake system fault.
  4. Difficulty shifting out of park (if the vehicle has a shift interlock system).
  5. Erratic behavior of other electrical components linked to the brake switch circuit.

How to Fix P0572

  1. Begin by conducting a visual inspection of the brake switch, wiring, connectors, and fuse related to the brake switch circuit.
  2. Test the brake switch using a multimeter to check for continuity and proper voltage output.
  3. Inspect and repair any damaged wiring or connectors in the brake switch circuit.
  4. Replace the brake switch if it is found to be faulty.
  5. Clear the DTC and test the vehicle to ensure that the issue has been resolved.

Cost to Fix P0572

The typical repair costs for addressing a P0572 code can vary depending on the specific cause of the issue. In general, replacing a faulty brake switch or repairing damaged wiring/connectors may cost between $50 to $150 for parts, with additional labor costs ranging from $80 to $150 per hour. The total repair cost could range from $150 to $300, but it is advisable to obtain a detailed quote from a reputable auto repair shop based on the specific diagnosis and repair needed for your vehicle. Labor rates can vary based on location, vehicle make and model, and the expertise of the technician performing the repair.

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Code P0572 Information for Specific Makes

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.

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