AutoCodes – GMC – B0087 2017 GMC Sierra

B0087 2017 GMC Sierra Code - Left Rear 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 Left Rear Side Impact Sensor, Left Rear Side Impact Sensor harness is open or shorted, Left Rear 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: B0087 2017 GMC Sierra indicates Left Rear Side Impact Sensor.
Common causes: Common causes include Faulty Left Rear Side Impact Sensor, Left Rear Side Impact Sensor harness is open or shorted, Left Rear 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 321

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 B0087 2017 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 B0087 2017 GMC Sierra - Left Rear Side Impact Sensor - AutoCodes.com — B0087 2017 GMC Sierra Code - Left Rear Side Impact Sensor

What does this mean?

What are the Possible Causes of the DTC B0087 2017 GMC Sierra?

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

How to Fix the DTC B0087 2017 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

B0087:02 Left Rear Side Impact Sensor Short to Ground
B0087:05 Left Rear Side Impact Sensor High Voltage/Open
B0087:39 Left Rear Side Impact Sensor Internal Malfunction
B0087:3A Left Rear Side Impact Sensor Incorrect Component Installed
B0087:71 Left Rear Side Impact Sensor Invalid Data

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0087 2017 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 B0087 2017 GMC Sierra code?

Need more information on how to fix the B0087 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0087 2017 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 B0087 2017 GMC Sierra Code

1. What does OBDII code B0087 for the Left Rear Side Impact Sensor on a 2017 GMC Sierra indicate?

The code B0087 typically indicates a malfunction in the left rear side impact sensor of a 2017 GMC Sierra.

2. What are some common symptoms of a faulty left rear side impact sensor in a 2017 GMC Sierra?

Common symptoms of a faulty left rear side impact sensor may include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's deployment.

3. What are possible causes of OBDII code B0087 for the left rear side impact sensor on a 2017 GMC Sierra?

Possible causes of code B0087 include a damaged sensor, wiring issues, loose connections, or a faulty control module.

4. How can I diagnose the issue with the left rear side impact sensor on my 2017 GMC Sierra?

Diagnosing the problem may involve using a scan tool to retrieve the specific trouble code, inspecting the sensor and its wiring for any visible damage, and checking for loose connections.

5. Can I repair a faulty left rear side impact sensor on my 2017 GMC Sierra myself?

While some basic inspections and checks can be done by DIY enthusiasts, repairing or replacing the left rear side impact sensor may require specialized tools and expertise. It's recommended to consult a professional mechanic for proper diagnosis and repair.

6. Are there any safety concerns associated with a malfunctioning left rear side impact sensor in a 2017 GMC Sierra?

A malfunctioning left rear side impact sensor can affect the proper deployment of the airbag system in the event of a side impact collision, potentially compromising passenger safety. It's crucial to address the issue promptly.

7. How much does it typically cost to repair or replace the left rear side impact sensor on a 2017 GMC Sierra?

The cost of repairing or replacing the left rear side impact sensor can vary depending on the extent of the damage, the need for new parts, and labor costs. It's advisable to obtain estimates from reputable repair shops.

8. Can a malfunctioning left rear side impact sensor affect the overall performance of my 2017 GMC Sierra?

While the primary function of the side impact sensor is related to the airbag system, a malfunction could potentially impact other safety features or the overall electronic system of the vehicle. Prompt attention is advisable.

9. Is it safe to drive my 2017 GMC Sierra with a faulty left rear side impact sensor?

It's not recommended to drive the vehicle with a malfunctioning left rear side impact sensor, as it may compromise the effectiveness of the airbag system in the event of a collision. Seek professional assistance and repair as soon as possible.

10. How can I prevent issues with the left rear side impact sensor on my 2017 GMC Sierra?

Regular maintenance checks, avoiding physical damage to the sensor during repairs or modifications, and prompt attention to any warning lights or unusual symptoms can help prevent issues with the left rear side impact sensor.