AutoCodes – GMC – B0086 2018 GMC Sierra

B0086 2018 GMC Sierra Code - Right Front Side 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 Side Impact Sensor, Right Front Side Impact Sensor harness is open or shorted, Right Front Side 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: B0086 2018 GMC Sierra indicates Right Front Side Impact Sensor.
Common causes: Common causes include Faulty Right Front Side Impact Sensor, Right Front Side Impact Sensor harness is open or shorted, Right Front Side 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 576

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 B0086 2018 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 (SDM). The impact sensors can assist in determining the severity of some frontal and side collisions. The Inflatable Restraint Sensing and Diagnostic Module use 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 B0086 2018 GMC Sierra - Right Front Side Impact Sensor - AutoCodes.com — B0086 2018 GMC Sierra Code - Right Front Side Impact Sensor

What does this mean?

What are the Possible Causes of the DTC B0086 2018 GMC Sierra?

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

How to Fix the DTC B0086 2018 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

B0086:02 Right Front Side Impact Sensor Short to Ground
B0086:05 Right Front Side Impact Sensor High Voltage/Open
B0086:0F Right Front Side Impact Sensor Signal Erratic
B0086:39 Right Front Side Impact Sensor Internal Malfunction
B0086:3A Right Front Side Impact Sensor Incorrect Component Installed
B0086:71 Right Front Side Impact Sensor Invalid Data

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0086 2018 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 B0086 2018 GMC Sierra code?

Need more information on how to fix the B0086 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0086 2018 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 B0086 2018 GMC Sierra Code

1. What does OBDII code B0086 for a 2018 GMC Sierra indicate?

The code B0086 for a 2018 GMC Sierra specifically refers to an issue with the Right Front Side Impact Sensor.

2. What are some common symptoms of a Right Front Side Impact Sensor issue?

Common symptoms of a faulty Right Front Side Impact Sensor may include the airbag warning light illuminating on the dashboard and potential airbag system malfunctions.

3. What are possible causes of the OBDII code B0086 in a 2018 GMC Sierra?

Potential causes of the B0086 code in a 2018 GMC Sierra include a malfunctioning Right Front Side Impact Sensor, wiring issues, or a problem with the airbag control module.

4. How can I diagnose a Right Front Side Impact Sensor problem in my 2018 GMC Sierra?

Diagnosing a Right Front Side Impact Sensor issue typically involves using a scan tool to retrieve the specific trouble code, inspecting the sensor and its wiring for damage, and testing the sensor's functionality.

5. Can driving with a B0086 OBDII code present be dangerous?

Driving with an active B0086 OBDII code can be risky as it indicates a potential problem with the airbag system, which may not deploy correctly in the event of a side impact collision.

6. Is it possible to reset the B0086 code in a 2018 GMC Sierra without fixing the issue?

While you can clear the B0086 code with an OBDII scanner, it's crucial to address the underlying problem with the Right Front Side Impact Sensor to ensure the airbag system functions properly.

7. How much does it typically cost to repair a Right Front Side Impact Sensor issue in a 2018 GMC Sierra?

The cost of repairing a Right Front Side Impact Sensor problem can vary depending on the extent of the damage and whether the sensor needs to be replaced or if it's a wiring issue. Costs can range from a couple of hundred dollars to over a thousand.

8. Can I replace the Right Front Side Impact Sensor in my 2018 GMC Sierra myself?

Replacing the Right Front Side Impact Sensor in a 2018 GMC Sierra may require specialized tools and knowledge, so it's recommended to have a qualified mechanic perform the replacement to ensure proper installation and calibration.

9. Are there any preventive measures to avoid the B0086 OBDII code in a 2018 GMC Sierra?

Regularly inspecting the airbag system components, including the impact sensors, for any signs of damage or wear can help prevent issues like the B0086 code. Additionally, avoiding collisions and impacts can help maintain the system's integrity.

10. How long does it take to repair a Right Front Side Impact Sensor issue in a 2018 GMC Sierra?

The repair time for a Right Front Side Impact Sensor problem can vary depending on the exact issue and the availability of parts. In general, it may take a few hours to a day for a mechanic to diagnose and repair the sensor.