B1089 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
- B1089 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.
Code B1089 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 B1089?
- 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 B1089?
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 B1089 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.
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Information for Specific Makes
- B1089 Infiniti — Front Pre-Tensioner Left Short
- B1089 Nissan — Front Pre-Tensioner Left Short
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 B1089 Code
1. What are the common symptoms of OBDII code B1089 (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 in the front left pre-tensioner seatbelt.
2. What could cause OBDII code B1089 to trigger?
OBDII code B1089 typically triggers due to a short circuit in the wiring of the front left pre-tensioner or a fault in the pre-tensioner itself.
3. How serious is OBDII code B1089 (Front Pre-Tensioner Left Short)?
This code is serious as it indicates a potential issue with the front left pre-tensioner seatbelt system, which is a crucial safety component in the event of a collision.
4. Can I continue driving with OBDII code B1089 active?
It is not recommended to continue driving with this code active, as it may compromise the effectiveness of the front left pre-tensioner seatbelt in the event of an accident.
5. How can I diagnose OBDII code B1089?
Diagnosing this code typically involves using a diagnostic scanner to retrieve the fault code, followed by inspecting the wiring and connections of the front left pre-tensioner system.
6. What repairs are typically needed for OBDII code B1089?
Repairs for this code may involve repairing or replacing damaged wiring, connectors, or the front left pre-tensioner itself as necessary.
7. Is it possible to reset OBDII code B1089 without fixing the issue?
Simply resetting the code without addressing the underlying issue is not recommended, as the safety implications of a malfunctioning pre-tensioner system are significant.
8. Are there any DIY repair tips for OBDII code B1089?
DIY repair for this code may be challenging due to the safety-critical nature of the pre-tensioner system, so it is advisable to seek professional help for proper diagnosis and repair.
9. How much does it cost to fix OBDII code B1089?
The cost of fixing this code can vary depending on the extent of the damage and the specific components that need to be repaired or replaced, so it's best to consult a mechanic for an accurate estimate.
10. Can OBDII code B1089 affect the overall safety of the vehicle?
Yes, this code can affect the overall safety of the vehicle by potentially impairing the functionality of the front left pre-tensioner seatbelt, which is designed to protect occupants in a collision.
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