AutoCodes – Nissan – B1146 Nissan

B1146 Nissan Code - Right Side Curtain Air Bag Module Short

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: B1146 Nissan indicates Right Side Curtain Air Bag Module Short.
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 1,748

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 B1146 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 B1146 Nissan - Right Side Curtain Air Bag Module Short - AutoCodes.com — B1146 Nissan Code - Right Side Curtain Air Bag Module Short

What does this mean?

What are the Possible Causes of the DTC B1146 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 B1146 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 B1146 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 B1146 Nissan code?

Need more information on how to fix the B1146 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1146 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 B1146 Nissan Code

1. What are the common symptoms of OBDII code B1146 in a Nissan indicating a Right Side Curtain Air Bag Module Short?

When OBDII code B1146 appears in a Nissan, common symptoms may include the airbag warning light illuminating on the dashboard and a potential loss of function in the right side curtain airbag system.

2. What are some possible causes of the Right Side Curtain Air Bag Module Short OBDII code B1146 in a Nissan?

Potential causes of OBDII code B1146 in a Nissan include damaged wiring or connectors in the right side curtain airbag circuit, a faulty airbag module, or a malfunctioning airbag sensor.

3. How can I diagnose the Right Side Curtain Air Bag Module Short OBDII code B1146 in my Nissan?

To diagnose OBDII code B1146 in a Nissan, a professional diagnostic scan tool is typically required to read the specific fault codes stored in the airbag control module. Additionally, a thorough visual inspection of the airbag system components may help identify any visible damage.

4. Are there any safety precautions to take when dealing with the Right Side Curtain Air Bag Module Short OBDII code B1146 in a Nissan?

When working on the airbag system to address OBDII code B1146 in a Nissan, it is crucial to disconnect the vehicle's battery and wait at least 10 minutes before proceeding. This precaution helps prevent accidental airbag deployment and ensures safety during repairs.

5. Can I reset the OBDII code B1146 related to the Right Side Curtain Air Bag Module Short in my Nissan without fixing the issue?

Resetting the OBDII code B1146 in a Nissan without addressing the underlying problem with the right side curtain airbag system is not recommended. The issue should be diagnosed and repaired to ensure the airbag functions properly in the event of an accident.

6. How can I repair the Right Side Curtain Air Bag Module Short OBDII code B1146 in my Nissan?

Repairing OBDII code B1146 in a Nissan typically involves inspecting and repairing damaged wiring or connectors in the right side curtain airbag circuit, replacing a faulty airbag module, or fixing any issues with the airbag sensor.

7. Is it safe to drive my Nissan with the Right Side Curtain Air Bag Module Short OBDII code B1146 present?

Driving a Nissan with the OBDII code B1146 related to a Right Side Curtain Air Bag Module Short is not recommended, as the airbag system may not deploy correctly in the event of a collision. It is advisable to address the issue promptly to ensure the safety of all occupants.

8. Can a DIY enthusiast fix the Right Side Curtain Air Bag Module Short OBDII code B1146 in a Nissan?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code B1146 in a Nissan, working on the airbag system requires specialized knowledge and tools. It is recommended to consult a professional technician or a certified mechanic for proper diagnosis and repair.

9. How much does it typically cost to repair the Right Side Curtain Air Bag Module Short OBDII code B1146 in a Nissan?

The cost of repairing OBDII code B1146 in a Nissan can vary depending on the specific cause of the issue and the labor rates of the repair shop. It is advisable to obtain multiple quotes from reputable mechanics to determine the most cost-effective solution.

10. Can the OBDII code B1146 related to the Right Side Curtain Air Bag Module Short in a Nissan be prevented?

Preventing OBDII code B1146 in a Nissan involves regular maintenance of the airbag system, checking for any signs of damage or wear, and addressing any issues promptly. Following the manufacturer's recommended service schedule can help prevent potential airbag system failures.