B1086 Nissan Code - Front Pre-Tensioner Left Open
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
- B1086 Nissan indicates Front Pre-Tensioner Left Open.
- 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.
Code B1086 Nissan Description
The restraint system for front seat occupant consists of the pre-tensioner mechanism and load limiter mechanism.
What are the Possible Causes of the DTC B1086 Nissan?
- 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 B1086 Nissan?
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 B1086 Nissan 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 B1086 Nissan code?
Need more information on how to fix the B1086 Nissan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1086 Nissan 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.
Frequently Asked Questions about B1086 Nissan Code
1. What does OBDII code B1086 for Nissan mean?
- OBDII code B1086 for Nissan indicates a fault with the front pre-tensioner on the left side being open, which affects the seatbelt system's ability to properly restrain occupants during a collision.
2. What are the common symptoms of OBDII code B1086 in a Nissan vehicle?
- Common symptoms include the airbag warning light illuminating on the dashboard, a chime or warning message indicating an issue with the seatbelt system, and potential non-deployment of the seatbelt during a crash.
3. What are the possible causes of OBDII code B1086 in a Nissan car?
- The code B1086 may be triggered by a faulty pre-tensioner mechanism, a damaged wiring harness, a loose connection, or a malfunction in the airbag control module.
4. How serious is the OBDII code B1086 in a Nissan vehicle?
- The B1086 code should be taken seriously as it affects the proper operation of the seatbelt pre-tensioner system, which is crucial for occupant safety in the event of a collision.
5. How can I diagnose the issue causing OBDII code B1086 in my Nissan?
- Diagnosing the problem typically involves using an OBDII scanner to read the specific fault code, inspecting the wiring and connectors related to the pre-tensioner, and testing the pre-tensioner unit itself for continuity and proper function.
6. Can I continue driving with OBDII code B1086 present in my Nissan?
- It is not recommended to continue driving with the B1086 code active, as it compromises the effectiveness of the seatbelt pre-tensioner system and may pose a safety risk in the event of an accident.
7. How can I repair OBDII code B1086 in my Nissan?
- Repairing the B1086 code typically involves replacing the faulty pre-tensioner unit, repairing or replacing damaged wiring or connectors, and clearing the code with an OBDII scanner once the issue has been resolved.
8. Can I reset the OBDII code B1086 in my Nissan without fixing the underlying issue?
- Resetting the code without addressing the underlying problem is not recommended, as the issue will likely persist and compromise the safety features of the vehicle.
9. Are there any precautions to take when working on the seatbelt pre-tensioner system to resolve OBDII code B1086?
- It is crucial to disconnect the vehicle's battery before working on the seatbelt pre-tensioner system to prevent accidental deployment of the pre-tensioner, which can cause injury.
10. Do I need special tools or expertise to fix OBDII code B1086 in my Nissan?
- Repairing OBDII code B1086 may require specialized tools and expertise, particularly when dealing with the airbag system and seatbelt pre-tensioner components. It is recommended to consult a qualified mechanic or technician for proper diagnosis and repair.
Discuss the causes and fixes for B1086 Nissan OBDII Code
Code B1086 Nissan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
