AutoCodes – GMC – C025E 2016 GMC Sierra

C025E 2016 GMC Sierra Code - Brake Booster Vacuum Sensor Circuit

Quick Answer

The Brake Booster Vacuum Sensor monitors the pressure in the brake booster. Common causes include Faulty Brake Booster Vacuum Sensor, Brake Booster Vacuum Sensor harness is open or shorted, Brake Booster Vacuum Sensor circuit poor electrical connection. 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 2016 GMC Sierra indicates Brake Booster Vacuum Sensor Circuit.
Common causes: Common causes include Faulty Brake Booster Vacuum Sensor, Brake Booster Vacuum Sensor harness is open or shorted, Brake Booster Vacuum Sensor circuit poor electrical connection.
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 Popularity 302

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jul 04, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C025E 2016 GMC Sierra Description

The Brake Booster Vacuum Sensor monitors the pressure in the brake booster. The Electronic Brake Control Module (EBCM) supplies a 5 V reference and a low reference circuit to the Brake Booster Vacuum Sensor. The vacuum sensor supplies a voltage signal in relation to the pressure in the brake booster to Electronic Brake Control Module. The Diagnostic Trouble Code (DTC) will be set when a short to ground or a short to voltage is detected on the 5V reference circuit.

OBDII Code C025E 2016 GMC Sierra - Brake Booster Vacuum Sensor Circuit - AutoCodes.com — C025E 2016 GMC Sierra Code - Brake Booster Vacuum Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C025E 2016 GMC Sierra?

Faulty Brake Booster Vacuum Sensor
Brake Booster Vacuum Sensor harness is open or shorted
Brake Booster Vacuum Sensor circuit poor electrical connection
Faulty Electronic Brake Control Module (EBCM)

How to Fix the DTC C025E 2016 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C025E 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C025E 2016 GMC Sierra code?

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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.

Frequently Asked Questions about C025E 2016 GMC Sierra Code

What does OBD-II code C025E mean on a 2016 GMC Sierra?

Code C025E indicates an issue with the Brake Booster Vacuum Sensor Circuit, which monitors the vacuum levels in the brake booster to ensure proper braking performance.

What are the common symptoms of code C025E on a 2016 GMC Sierra?

Symptoms may include reduced braking performance, hard brake pedal feel, illuminated ABS or brake warning lights, and possible loss of power-assisted braking.

What causes code C025E to appear on a 2016 GMC Sierra?

Common causes include a faulty brake booster vacuum sensor, damaged wiring or connectors in the sensor circuit, or insufficient vacuum levels in the brake booster.

How do you diagnose code C025E on a 2016 GMC Sierra?

Diagnosis involves scanning for stored trouble codes, inspecting the brake booster vacuum sensor and its wiring, checking for proper vacuum levels, and testing the sensor for functionality.

Can you drive with code C025E active on a 2016 GMC Sierra?

While the vehicle may still be drivable, reduced braking performance could compromise safety. It’s best to address the issue promptly to avoid further risks.

How do you fix code C025E on a 2016 GMC Sierra?

Repairs may include replacing the brake booster vacuum sensor, repairing damaged wiring or connectors, or addressing vacuum leaks in the brake booster system.

How much does it cost to repair code C025E on a 2016 GMC Sierra?

Repair costs vary depending on the issue but typically range from $100 to $300 for parts and labor, depending on the specific repair required.

Can a faulty brake booster vacuum sensor cause other issues?

Yes, it can lead to poor braking performance and may trigger additional fault codes related to the ABS or brake system.

Is code C025E specific to GMC vehicles?

No, while it is commonly seen on GM vehicles like the 2016 GMC Sierra, other manufacturers may use similar codes for brake booster vacuum sensor issues.

How can you prevent code C025E from occurring on a 2016 GMC Sierra?

Regular maintenance of the brake system, including checking vacuum hoses and sensors, can help prevent issues related to the brake booster vacuum sensor circuit.