Engine-CodesBuick – C025E Buick

C025E Buick Code - Brake Booster Vacuum Sensor Circuit

Quick Answer

The C025E Buick code refers to an issue with the Brake Booster Vacuum Sensor Circuit in the vehicle. Common causes include Faulty brake booster vacuum sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the brake booster. 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
C025E Buick indicates Brake Booster Vacuum Sensor Circuit.
Common causes
Common causes include Faulty brake booster vacuum sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the brake booster.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code C025E Buick Description

The C025E Buick code refers to an issue with the Brake Booster Vacuum Sensor Circuit in the vehicle. The brake booster vacuum sensor is a crucial component of the brake system that is responsible for detecting the amount of vacuum pressure in the brake booster. The brake booster itself is a part of the power brake system that helps increase the force applied to the brake pedal, making it easier for the driver to stop the vehicle.

OBDII Code C025E Buick - Brake Booster Vacuum Sensor Circuit
C025E Buick Code - Brake Booster Vacuum Sensor Circuit

Common Causes of C025E Buick

  1. Faulty brake booster vacuum sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Vacuum leak in the brake booster
  4. Low vacuum pressure in the brake booster
  5. Electronic control module (ECM) issues

Symptoms of C025E Buick

  1. Illuminated brake warning light on the dashboard
  2. Increased brake pedal effort required for braking
  3. Delayed response when applying the brakes
  4. Spongy or soft brake pedal feel
  5. Loss of power assistance in the brake system

How to Fix C025E Buick

  1. Diagnose the specific cause of the issue using a diagnostic scanner to read and interpret the fault codes.
  2. Inspect the brake booster vacuum sensor, wiring, and connectors for any visible damage or wear.
  3. Check the vacuum pressure in the brake booster and repair any leaks if necessary.
  4. Replace the faulty brake booster vacuum sensor if it is determined to be the root cause of the problem.
  5. Clear the fault codes and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix C025E Buick

The cost of repairing the Brake Booster Vacuum Sensor Circuit can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the cost of parts for this repair can range from $50 to $200, while the labor cost can be anywhere from $100 to $300. Overall, the total cost of repairing this issue could be between $150 and $500. It is recommended to get quotes from multiple auto repair shops to find the best deal based on your location and vehicle type.

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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.

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