AutoCodes – GMC – B0084 2016 GMC Sierra

B0084 2016 GMC Sierra Code - Right Front Impact Sensor

Quick Answer

The impact sensors are equipped on vehicles to supplement the Supplemental Inflatable Restraint (SIR) system performance. Common causes include Faulty Right Front Impact Sensor, Right Front Impact Sensor harness is open or shorted, Right Front Impact 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: B0084 2016 GMC Sierra indicates Right Front Impact Sensor.
Common causes: Common causes include Faulty Right Front Impact Sensor, Right Front Impact Sensor harness is open or shorted, Right Front Impact 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 276

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 24, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0084 2016 GMC Sierra Description

The impact sensors are equipped on vehicles to supplement the Supplemental Inflatable Restraint (SIR) system performance. The impact sensors are electronic and are not part of the deployment loops, but instead provide inputs to the inflatable restraint sensing and diagnostic module. The impact sensors can assist in determining the severity of some frontal and side collisions. The Inflatable Restraint Sensing and Diagnostic Module (SDM) uses the input from the impact sensors to assist in determining the severity of a collision, further supporting air bag deployment. If the Inflatable Restraint Sensing and Diagnostic Module determines a deployment is warranted, the Inflatable Restraint Sensing and Diagnostic Module will cause current to flow through the deployment loops deploying the air bags.

OBDII Code B0084 2016 GMC Sierra - Right Front Impact Sensor - AutoCodes.com — B0084 2016 GMC Sierra Code - Right Front Impact Sensor

What does this mean?

What are the Possible Causes of the DTC B0084 2016 GMC Sierra?

Faulty Right Front Impact Sensor
Right Front Impact Sensor harness is open or shorted
Right Front Impact Sensor circuit poor electrical connection
Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0084 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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0084 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 B0084 2016 GMC Sierra code?

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

Need Help with the Code?

Get the B0084 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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.