B1150 Nissan Code - Left Side Curtain Air Bag Module Open
Quick Answer
In case of collision whose acceleration exceeds the specified level, the ignition materials are ignited by the electric ignition system. Common causes include Faulty Left Side Curtain Air Bag Module, Left Side Curtain Air Bag Module harness is open or shorted, Left Side Curtain Air Bag Module 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
- B1150 Nissan indicates Left Side Curtain Air Bag Module Open.
- Common causes
- Common causes include Faulty Left Side Curtain Air Bag Module, Left Side Curtain Air Bag Module harness is open or shorted, Left Side Curtain Air Bag Module 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 B1150 Nissan Description
The Left Side Curtain Air Bag Module mainly consists of air bag and inflator which inflates the air bag.
What are the Possible Causes of the DTC B1150 Nissan?
- Faulty Left Side Curtain Air Bag Module
- Left Side Curtain Air Bag Module harness is open or shorted
- Left Side Curtain Air Bag Module circuit poor electrical connection
How to Fix the DTC B1150 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 B1150 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.
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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.
Frequently Asked Questions about B1150 Nissan Code
1. What does the OBDII code B1150 mean on a Nissan?
The code B1150 indicates an open circuit in the left side curtain airbag module, which means the airbag system has detected a fault and may not deploy properly in an accident.
2. What are the symptoms of code B1150 in a Nissan?
Common symptoms include an illuminated airbag warning light on the dashboard and potentially no deployment of the left side curtain airbag in the event of a collision.
3. What causes the B1150 code to appear?
Causes can include a damaged or disconnected wiring harness, a faulty left side curtain airbag module, a corroded connector, or a problem in the airbag control unit.
4. Can I drive my car with the B1150 code active?
While the car may still be driveable, the airbag system may not function correctly in an accident, posing a serious safety risk. It’s best to address the issue promptly.
5. How is the B1150 code diagnosed?
A technician will use a scan tool to read the code, inspect the wiring and connectors for damage or corrosion, and test the left side curtain airbag module for continuity.
6. Can a loose connection cause the B1150 code?
Yes, a loose or disconnected wiring connection to the left side curtain airbag module is a common cause of this code.
7. How can I fix the B1150 code on my Nissan?
Repairs may include reconnecting or replacing damaged wires, cleaning corroded connectors, or replacing the left side curtain airbag module if it’s defective.
8. How much does it cost to repair the B1150 code?
Repair costs vary depending on the cause. Simple wiring repairs may cost $100-$200, while replacing the airbag module can cost $500 or more, including labor.
9. Does the B1150 code mean my airbag will not work at all?
Yes, if the system detects an open circuit in the left side curtain airbag, it will likely disable the entire airbag system to prevent improper deployment.
10. Can I reset the B1150 code without fixing the problem?
Clearing the code without addressing the underlying issue will not solve the problem, and the code will likely reappear as soon as the system detects the fault again.
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