AutoCodes – Nissan – B1145 Nissan

B1145 Nissan Code - Right 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 Right Side Curtain Air Bag Module, Right Side Curtain Air Bag Module harness is open or shorted, Right 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: B1145 Nissan indicates Right Side Curtain Air Bag Module Open.
Common causes: Common causes include Faulty Right Side Curtain Air Bag Module, Right Side Curtain Air Bag Module harness is open or shorted, Right 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.

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Code Popularity 8,922

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 Feb 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1145 Nissan Description

In case of collision whose acceleration exceeds the specified level, the ignition materials are ignited by the electric ignition system. The system burns and introduces the chemical reaction of gas generating materials to generate hot gases that flow into the air bag through a filter and expand the bag.
The Right Side Curtain Air Bag Module mainly consists of air bag and inflator which inflates the air bag.

OBDII Code B1145 Nissan - Right Side Curtain Air Bag Module Open - AutoCodes.com — B1145 Nissan Code - Right Side Curtain Air Bag Module Open

What does this mean?

What are the Possible Causes of the DTC B1145 Nissan?

Faulty Right Side Curtain Air Bag Module
Right Side Curtain Air Bag Module harness is open or shorted
Right Side Curtain Air Bag Module circuit poor electrical connection

How to Fix the DTC B1145 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 B1145 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 B1145 Nissan code?

Need more information on how to fix the B1145 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1145 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.

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 B1145 Nissan Code

1. What are common symptoms of OBDII code B1145 in a Nissan related to the right side curtain air bag module?

The most common symptom is the illumination of the airbag warning light on the dashboard.

2. What does the OBDII code B1145 Nissan indicate about the right side curtain air bag module?

This code indicates that there is an open circuit in the right side curtain air bag module.

3. What are possible causes of the right side curtain air bag module open issue (B1145) in a Nissan?

Potential causes include a faulty air bag module, damaged wiring, loose connections, or a blown fuse related to the airbag system.

4. How can I diagnose the OBDII code B1145 in my Nissan for the right side curtain air bag module open problem?

Diagnosis typically involves using a professional OBDII scanner to read the specific error code, followed by inspecting the airbag module, wiring, and connections for any visible damage.

5. Is it safe to drive with the OBDII code B1145 related to the right side curtain air bag module open in a Nissan?

It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the airbag system's functionality and safety.

6. Can I reset the OBDII code B1145 in my Nissan without fixing the underlying issue with the right side curtain air bag module?

Resetting the code without addressing the root cause will likely result in the code reappearing once the vehicle is driven and the system performs its self-check.

7. How can I repair the OBDII code B1145 for the right side curtain air bag module open in my Nissan?

Repairing this issue may involve replacing the faulty air bag module, repairing damaged wiring, ensuring proper connections, or addressing any blown fuses affecting the airbag system.

8. Are there any safety precautions to consider when working on the right side curtain air bag module related to the OBDII code B1145 in a Nissan?

It is crucial to disconnect the vehicle's battery and wait for at least 10 minutes before working on the airbag system to prevent accidental deployment.

9. Can a DIY enthusiast fix the OBDII code B1145 issue related to the right side curtain air bag module in a Nissan?

While some basic troubleshooting steps can be performed by a DIY enthusiast, it is recommended to consult a qualified professional for complex airbag system repairs to ensure safety and proper functionality.

10. How much can I expect to spend on repairing the OBDII code B1145 for the right side curtain air bag module open in my Nissan?

The cost of repairs can vary depending on the specific issue, parts needed, and labor rates. It is advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.