AutoCodes – Hummer – B0084 Hummer

B0084 Hummer 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 Hummer 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 3,726

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 Hummer 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 Hummer - Right Front Impact Sensor - AutoCodes.com — B0084 Hummer Code - Right Front Impact Sensor

What does this mean?

What are the Possible Causes of the DTC B0084 Hummer?

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 Hummer?

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 Hummer 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 Hummer code?

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

Need Help with the Code?

Get the B0084 Hummer 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 Hummer Code

1. What are the common symptoms of OBDII code B0084 related to the Right Front Impact Sensor in a Hummer?

- The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system deployment.

2. What are the possible causes of OBDII code B0084 in a Hummer?

- The code B0084 typically indicates a malfunction or fault in the Right Front Impact Sensor, which could be caused by wiring issues, sensor damage, or a faulty sensor module.

3. How can I troubleshoot OBDII code B0084 in my Hummer?

- You can start by inspecting the wiring harness connected to the Right Front Impact Sensor for any damage or loose connections. Additionally, checking the sensor itself for physical damage or corrosion can help identify the issue.

4. Is it safe to drive my Hummer with OBDII code B0084 triggered?

- It is not recommended to drive the vehicle with the airbag warning light illuminated, as it indicates a potential issue with the airbag system's functionality. Prompt inspection and repair are advised to ensure safety.

5. Can I reset OBDII code B0084 in my Hummer without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent potential safety hazards and ensure the proper functioning of the airbag system.

6. How much does it typically cost to repair OBDII code B0084 in a Hummer?

- The repair costs for OBDII code B0084 can vary depending on the extent of the damage and whether you choose to replace the sensor or repair the wiring. Costs may range from a few hundred to over a thousand dollars.

7. Can a DIY enthusiast fix OBDII code B0084 in a Hummer?

- While some DIY enthusiasts may have the skills to diagnose and repair wiring issues related to the Right Front Impact Sensor, dealing with airbag system components can be complex and dangerous. It is recommended to seek professional assistance for such repairs.

8. Will OBDII code B0084 cause the airbags not to deploy in an accident?

- OBDII code B0084 indicates a fault in the Right Front Impact Sensor, which can affect the airbag system's ability to deploy properly in the event of a collision. It is essential to address this issue promptly to ensure the airbags function as intended.

9. How long does it take to repair OBDII code B0084 in a Hummer?

- The repair time for OBDII code B0084 can vary depending on the exact cause of the issue and the extent of the repairs needed. In most cases, it may take a few hours to a full day to diagnose and fix the problem.

10. Are there any recalls related to OBDII code B0084 in Hummer vehicles?

- It is advisable to check with the manufacturer or authorized dealerships for any recalls or service bulletins related to OBDII code B0084 in your specific Hummer model.