Engine-CodesGMC – B0084 2016 GMC Sierra

B0084 2016 GMC Sierra Code - Right Front Impact Sensor

Quick Answer

The B0084 diagnostic trouble code (DTC) for a 2016 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 water damage affecting the sensor. 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 2016 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 water damage affecting the sensor.
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 14, 2024
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Code B0084 2016 GMC Sierra Description

The B0084 diagnostic trouble code (DTC) for a 2016 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 a collision, and triggering the deployment of the airbags to protect the occupants in the event of an accident.

OBDII Code B0084 2016 GMC Sierra - Right Front Impact Sensor
B0084 2016 GMC Sierra Code - Right Front Impact Sensor

Common Causes of B0084 2016 GMC Sierra

  1. Faulty Right Front Impact Sensor.
  2. Damaged wiring or connectors leading to the sensor.
  3. Corrosion or water damage affecting the sensor.
  4. Impact or collision that has physically damaged the sensor.
  5. Electrical issues within the SRS system.

Symptoms of B0084 2016 GMC Sierra

  1. Airbag warning light illuminated on the dashboard.
  2. Inability to deploy airbags in the event of a collision.
  3. False deployment of airbags.
  4. Diagnostic trouble code stored in the vehicle's computer system.

How to Fix B0084 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the B0084 code using a professional diagnostic scan tool.
  2. Inspect the Right Front Impact Sensor and its wiring for any visible damage or corrosion.
  3. Replace the faulty impact sensor if necessary, ensuring proper installation and connection.
  4. Clear the diagnostic trouble code from the vehicle's computer system.
  5. Perform a thorough test of the airbag system to ensure proper functioning and reset the system if needed.

Cost to Fix B0084 2016 GMC Sierra

The typical repair costs for addressing a B0084 code related to the Right Front Impact Sensor in a 2016 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of replacing the impact sensor and addressing any wiring issues can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary significantly, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and the extent of the repair needed can also impact the overall cost. For a more accurate estimate, it's recommended to consult with a trusted auto repair professional in your area.

Tech Notes for B0084 2016 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 2016 GMC Sierra code?

Need more information on how to fix the B0084 2016 GMC Sierra code? Get Access to Factory Service Manuals

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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 2016 GMC Sierra Code

1. What does OBDII code B0084 in a 2016 GMC Sierra indicate?

The code B0084 for a 2016 GMC Sierra relates to the Right Front Impact Sensor.

2. What are common symptoms of a faulty Right Front Impact Sensor in a 2016 GMC Sierra?

Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the airbag system deployment.

3. What are possible causes of the B0084 code in a 2016 GMC Sierra?

Potential causes of the B0084 code include a malfunctioning Right Front Impact Sensor, wiring issues, or a problem with the airbag control module.

4. How can I diagnose a faulty Right Front Impact Sensor in my 2016 GMC Sierra?

Diagnosing a faulty Right Front Impact Sensor typically involves using a diagnostic scanner to read the trouble code, inspecting the sensor and its wiring for damage, and conducting any necessary continuity tests.

5. Can I repair the Right Front Impact Sensor in my 2016 GMC Sierra myself?

While some DIY enthusiasts may be able to replace the Right Front Impact Sensor themselves, it is recommended to have this type of repair done by a qualified mechanic to ensure proper installation and calibration.

6. Are there any safety precautions to consider when working on the airbag system related to the B0084 code in a 2016 GMC Sierra?

It is crucial to disconnect the vehicle's battery and wait for at least 10 minutes before working on the airbag system to prevent accidental deployment and ensure safety.

7. How much does it typically cost to replace a Right Front Impact Sensor in a 2016 GMC Sierra?

The cost of replacing a Right Front Impact Sensor can vary depending on the specific model and labor rates, but it may range from $200 to $500 including parts and labor.

8. Can a Right Front Impact Sensor be repaired, or does it need to be replaced when faulty?

In most cases, a faulty Right Front Impact Sensor will need to be replaced rather than repaired to ensure the proper functioning of the airbag system in the event of a collision.

9. Will driving with a B0084 code in a 2016 GMC Sierra affect vehicle safety?

Driving with a B0084 code indicating a faulty Right Front Impact Sensor can compromise the proper functioning of the airbag system, potentially affecting vehicle safety in the event of an accident.

10. How often should the Right Front Impact Sensor be inspected in a 2016 GMC Sierra?

It is recommended to have the Right Front Impact Sensor inspected during routine maintenance or whenever symptoms of a malfunction are detected to ensure the proper operation of the airbag system.

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