Engine-CodesBuick – B0087 Buick

B0087 Buick Code - Left Rear Side Impact Sensor

Quick Answer

The B0087 Buick code refers to an issue with the Left Rear Side Impact Sensor. Common causes include Wiring harness damage or corrosion, Sensor malfunction or failure, Impact damage to 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
B0087 Buick indicates Left Rear Side Impact Sensor.
Common causes
Common causes include Wiring harness damage or corrosion, Sensor malfunction or failure, Impact damage to 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 13, 2024
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Code B0087 Buick Description

The B0087 Buick code refers to an issue with the Left Rear Side Impact Sensor. This sensor is a crucial component of the vehicle's safety system, specifically designed to detect impacts on the left rear side of the vehicle. When this sensor detects a side impact, it sends a signal to the airbag control module to deploy the side curtain airbags and protect the occupants in the event of a collision.

OBDII Code B0087 Buick - Left Rear Side Impact Sensor
B0087 Buick Code - Left Rear Side Impact Sensor

Common Causes of B0087 Buick

  1. Wiring harness damage or corrosion
  2. Sensor malfunction or failure
  3. Impact damage to the sensor
  4. Poor connection or loose wiring
  5. Faulty airbag control module

Symptoms of B0087 Buick

  1. Airbag warning light illuminated on the dashboard
  2. Side curtain airbags not deploying in a side impact collision
  3. Diagnostic trouble codes related to the left rear side impact sensor
  4. Vehicle may fail safety inspections due to the malfunctioning sensor

How to Fix B0087 Buick

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the problem.
  2. Inspect the wiring harness and connections for any damage, corrosion, or loose connections. Repair or replace any damaged components as needed.
  3. Test the left rear side impact sensor for proper functionality. If the sensor is faulty, replace it with a new one.
  4. Clear the diagnostic trouble codes from the system and reset the airbag control module.
  5. Perform a thorough test drive to ensure that the sensor is now functioning correctly and that the airbags deploy as intended in a simulated side impact scenario.

Cost to Fix B0087 Buick

The cost of repairing the Left Rear Side Impact Sensor can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the cost of replacing a side impact sensor can range from $200 to $500, including parts and labor. However, it is essential to note that labor rates at auto repair shops can vary significantly, with hourly rates typically ranging from $80 to $150. It is advisable to check with local repair shops for a more accurate estimate based on your location and vehicle make and model.

Tech Notes for B0087 Buick

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

Need more information about the B0087 Buick code?

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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 B0087 Buick Code

1. What are the common symptoms of OBDII code B0087 for the left rear side impact sensor in a Buick?

The common symptoms include the airbag warning light illuminating on the dashboard and possible deployment issues with the left rear side airbag.

2. What can cause OBDII code B0087 to trigger in a Buick's left rear side impact sensor?

Possible causes for this code may include a malfunction or damage to the left rear side impact sensor, wiring issues, or a faulty connection.

3. How can I diagnose the OBDII code B0087 related to the left rear side impact sensor in my Buick?

Diagnosing this code typically involves using a diagnostic scanner to read the fault codes, inspecting the left rear side impact sensor and its wiring for any visible damage, and conducting further electrical testing if needed.

4. Is it safe to drive my Buick with OBDII code B0087 indicating a problem with the left rear side impact sensor?

It is not recommended to drive the vehicle with this code active, as it may affect the proper function of the left rear side airbag in the event of a collision.

5. How can I reset the OBDII code B0087 for the left rear side impact sensor in my Buick after making repairs?

Once the issue with the left rear side impact sensor is resolved, you can reset the code using a diagnostic scanner capable of clearing fault codes.

6. Can I repair the left rear side impact sensor in my Buick myself, or should I seek professional help?

Repairing the left rear side impact sensor may require specialized knowledge and tools, so it is recommended to seek professional help to ensure proper diagnosis and repair.

7. Are there any recalls or technical service bulletins related to OBDII code B0087 for the left rear side impact sensor in Buick vehicles?

It's advisable to check with a Buick dealership or online databases for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or solutions provided by the manufacturer.

8. Is it necessary to replace the left rear side impact sensor if OBDII code B0087 is triggered in my Buick?

Depending on the cause of the code, it may be necessary to replace the left rear side impact sensor to ensure proper functioning of the airbag system. Consult with a professional technician for the best course of action.

9. How much does it typically cost to repair the left rear side impact sensor when OBDII code B0087 appears in a Buick?

The cost of repairing the left rear side impact sensor can vary based on the extent of the damage and whether the sensor needs to be replaced. It's best to get a quote from a reputable auto repair shop.

10. Can a problem with the left rear side impact sensor causing OBDII code B0087 impact other safety features in my Buick?

A malfunctioning left rear side impact sensor can potentially affect the overall performance of the airbag system in your Buick, impacting safety in the event of a side collision.

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