Engine-CodesGMC – B0084 2014 GMC Sierra

B0084 2014 GMC Sierra Code - Right Front Impact Sensor

Quick Answer

The B0084 diagnostic trouble code for a 2014 GMC Sierra relates to the right front impact sensor. Common causes include Faulty right front impact sensor, Damaged wiring or connectors leading to the sensor, Corrosion or debris affecting the sensor's operation. 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
B0084 2014 GMC Sierra indicates Right Front Impact Sensor.
Common causes
Common causes include Faulty right front impact sensor, Damaged wiring or connectors leading to the sensor, Corrosion or debris affecting the sensor's operation.
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 17, 2024
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Code B0084 2014 GMC Sierra Description

The B0084 diagnostic trouble code for a 2014 GMC Sierra relates to the right front impact sensor. This sensor is a crucial component of the vehicle's Supplemental Restraint System (SRS), also known as the airbag system. The impact sensor is responsible for detecting sudden changes in acceleration, such as those that occur during a collision. When the sensor detects a significant impact, it sends a signal to the airbag control module to deploy the airbags and other safety features to protect the occupants in the event of a crash.

OBDII Code B0084 2014 GMC Sierra - Right Front Impact Sensor
B0084 2014 GMC Sierra Code - Right Front Impact Sensor

Common Causes of B0084 2014 GMC Sierra

  1. Faulty right front impact sensor.
  2. Damaged wiring or connectors leading to the sensor.
  3. Corrosion or debris affecting the sensor's operation.
  4. Issues with the airbag control module.
  5. Previous collision or impact that damaged the sensor.

Symptoms of B0084 2014 GMC Sierra

  1. Airbag warning light illuminated on the dashboard.
  2. SRS warning message displayed on the instrument cluster.
  3. Airbags may not deploy in the event of a collision.
  4. Loss of communication with the airbag control module.
  5. Vehicle may fail a safety inspection due to the airbag system fault.

How to Fix B0084 2014 GMC Sierra

  1. Begin by disconnecting the vehicle's battery to prevent accidental deployment of the airbags.
  2. Locate the right front impact sensor, typically located behind the front bumper or within the front fender.
  3. Inspect the sensor and its wiring for any visible damage or corrosion.
  4. Test the sensor using a multimeter to check for proper resistance and continuity.
  5. Replace the sensor if it is found to be faulty, and ensure all connections are secure before reassembling the vehicle.

Cost to Fix B0084 2014 GMC Sierra

The cost of repairing a B0084 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts for a new impact sensor can range from $100 to $300, while the labor costs can range from $100 to $200. Overall, you can expect to pay between $200 and $500 for the repair, including parts and labor. Keep in mind that these are rough estimates, and actual costs may differ based on your location and the specific circumstances of your vehicle. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

Tech Notes for B0084 2014 GMC Sierra

B0084:02 Right Front Impact Sensor Short to Ground

B0084:05 Right Front Impact Sensor Short to Battery or Open

B0084:08 Right Front Impact Sensor Signal Invalid

B0084:0F Right Front Impact Sensor Erratic

B0084:39 Right Front Impact Sensor Internal Electronic Failure

B0084:3A Right Front Impact Sensor Incorrect Component Installed

B0084:71 Right Front Impact Sensor Invalid Serial Data Received

Need more information about the B0084 2014 GMC Sierra code?

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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B0084 2014 GMC Sierra Code

1. What does OBDII code B0084 for a 2014 GMC Sierra indicate?

- OBDII code B0084 in a 2014 GMC Sierra refers to a problem with the Right Front Impact Sensor.

2. What are the common symptoms of a Right Front Impact Sensor issue (B0084) in a 2014 GMC Sierra?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the right front airbag during a collision.

3. What are the possible causes of OBDII code B0084 in a 2014 GMC Sierra?

- The code B0084 can be triggered by a faulty Right Front Impact Sensor, damaged wiring or connectors, or issues with the airbag control module.

4. How can I diagnose a Right Front Impact Sensor issue (B0084) in my 2014 GMC Sierra?

- Diagnosing the problem may involve using a scan tool to retrieve the specific trouble code, inspecting the sensor and related wiring for damage, and testing the sensor's functionality.

5. Can I continue driving my 2014 GMC Sierra with OBDII code B0084?

- It is not recommended to drive the vehicle with an active B0084 code, as it indicates a potential problem with the airbag system's ability to deploy in the event of a collision.

6. How can I repair a Right Front Impact Sensor problem (B0084) in a 2014 GMC Sierra?

- Repairing the issue may involve replacing the faulty Right Front Impact Sensor, repairing damaged wiring or connectors, or addressing any issues with the airbag control module.

7. Is it safe to reset the OBDII code B0084 in my 2014 GMC Sierra without fixing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause, as it may compromise the safety of the airbag system in the vehicle.

8. Can a DIY enthusiast fix the Right Front Impact Sensor problem (B0084) in a 2014 GMC Sierra?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, repairing or replacing the Right Front Impact Sensor may require specialized tools and expertise best handled by a professional mechanic.

9. How much does it typically cost to repair a Right Front Impact Sensor issue (B0084) in a 2014 GMC Sierra?

- The cost of repairing a B0084 code can vary depending on the specific cause of the issue, but it may involve expenses for parts, labor, and diagnostic services.

10. Are there any recalls or technical service bulletins related to OBDII code B0084 in a 2014 GMC Sierra?

- It is recommended to check with a GMC dealership or online resources for any recalls or technical service bulletins related to the B0084 code to see if there are known issues or remedies provided by the manufacturer.

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