AutoCodes – Infiniti – B1087 Infiniti

B1087 Infiniti Code - Front Pre-Tensioner Left Short

Quick Answer

In the case of a frontal collision that exceeds specified impact level, the diagnosis sensor unit detects the deceleration caused by the collision. Common causes include Faulty Front Pre-Tensioner Left, Front Pre-Tensioner Left harness is open or shorted, Front Pre-Tensioner Left 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: B1087 Infiniti indicates Front Pre-Tensioner Left Short.
Common causes: Common causes include Faulty Front Pre-Tensioner Left, Front Pre-Tensioner Left harness is open or shorted, Front Pre-Tensioner Left 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 1,339

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 Nov 18, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1087 Infiniti Description

In the case of a frontal collision that exceeds specified impact level, the diagnosis sensor unit detects the deceleration caused by the collision. If restrains the passenger with seat belt easing the stress on passengers chest with load limiter.
The restraint system for front seat occupant consists of the pre-tensioner mechanism and load limiter mechanism.

OBDII Code B1087 Infiniti - Front Pre-Tensioner Left Short - AutoCodes.com — B1087 Infiniti Code - Front Pre-Tensioner Left Short

What does this mean?

What are the Possible Causes of the DTC B1087 Infiniti?

Faulty Front Pre-Tensioner Left
Front Pre-Tensioner Left harness is open or shorted
Front Pre-Tensioner Left circuit poor electrical connection

How to Fix the DTC B1087 Infiniti?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1087 Infiniti 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 B1087 Infiniti code?

Need more information on how to fix the B1087 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1087 Infiniti 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 B1087 Infiniti Code

1. What are the common symptoms of OBDII code B1087 Infiniti (Front Pre-Tensioner Left Short)?

The common symptoms of this code may include the airbag warning light illuminating on the dashboard and a potential loss of functionality of the front left seatbelt pre-tensioner.

2. What are the possible causes of OBDII code B1087 (Front Pre-Tensioner Left Short) in an Infiniti vehicle?

Possible causes of this code may include damaged wiring or connectors in the front left pre-tensioner circuit, a faulty pre-tensioner unit, or a problem with the airbag control module.

3. How can I diagnose OBDII code B1087 Infiniti (Front Pre-Tensioner Left Short)?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the fault codes, inspecting the wiring and connectors in the front left pre-tensioner circuit, and testing the pre-tensioner unit for proper functionality.

4. Can I continue driving my Infiniti with OBDII code B1087 (Front Pre-Tensioner Left Short) present?

It is not recommended to drive the vehicle with this code present, as it indicates a potential safety issue with the front left pre-tensioner system, which is designed to enhance occupant safety in the event of a collision.

5. How can I repair OBDII code B1087 Infiniti (Front Pre-Tensioner Left Short)?

Repairing this code may involve repairing or replacing damaged wiring or connectors in the pre-tensioner circuit, replacing the faulty pre-tensioner unit, or addressing any issues with the airbag control module.

6. Is it safe to reset the OBDII code B1087 (Front Pre-Tensioner Left Short) without addressing the underlying issue?

Resetting the code without addressing the underlying issue may temporarily turn off the warning light, but the safety system will remain compromised until the root cause of the code is resolved.

7. What are some tips for preventing OBDII code B1087 Infiniti (Front Pre-Tensioner Left Short) from occurring?

To prevent this code, it's essential to regularly inspect the wiring and connectors in the pre-tensioner system, follow proper maintenance schedules, and address any airbag warning lights promptly.

8. How much does it typically cost to repair OBDII code B1087 (Front Pre-Tensioner Left Short) in an Infiniti vehicle?

The cost of repairing this code can vary depending on the extent of the issue, the parts needed for replacement, and labor costs. It's recommended to consult a professional mechanic for an accurate estimate.

9. Can OBDII code B1087 Infiniti (Front Pre-Tensioner Left Short) be a DIY repair, or should it be done by a professional?

Due to the critical nature of the safety system involved, it is recommended to have OBDII code B1087 repaired by a qualified professional who has experience working with airbag systems and diagnostic tools.

10. Will OBDII code B1087 (Front Pre-Tensioner Left Short) affect the overall performance of my Infiniti vehicle?

This code is related to the safety system of the vehicle and may not directly impact its overall performance. However, it is crucial to address this issue promptly to ensure occupant safety in case of an accident.