AutoCodes – Infiniti – B1146 Infiniti

B1146 Infiniti 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 Infiniti 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 1,425

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

What does this mean?

What are the Possible Causes of the DTC B1146 Infiniti?

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 Infiniti?

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 Infiniti 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 Infiniti code?

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

Need Help with the Code?

Get the B1146 Infiniti 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 Infiniti Code

1. What are common symptoms of OBDII code B1146 in an Infiniti related to the right side curtain air bag module short?

The common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the right side curtain airbag deployment.

2. What are possible causes of OBDII code B1146 in an Infiniti indicating a right side curtain air bag module short?

Possible causes include a short circuit in the wiring harness, a malfunctioning airbag control module, or a fault in the right side curtain airbag itself.

3. How can I diagnose the OBDII code B1146 in my Infiniti for a right side curtain air bag module short?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, followed by inspecting the right side curtain airbag system for any visible damage or wiring issues.

4. Is it safe to continue driving my Infiniti with OBDII code B1146 indicating a right side curtain air bag module short?

It is not recommended to drive the vehicle with an active airbag fault code, as it may compromise the safety of the airbag system in the event of a collision.

5. How can I repair OBDII code B1146 in my Infiniti related to a right side curtain air bag module short?

Repairing the issue involves addressing the root cause, which may include repairing or replacing damaged wiring, replacing the airbag control module, or replacing the right side curtain airbag itself.

6. Can I reset the OBDII code B1146 in my Infiniti after repairing the right side curtain air bag module short issue?

After repairing the issue, the fault code can be cleared using an OBDII scanner to reset the system and turn off the airbag warning light on the dashboard.

7. How much does it typically cost to repair OBDII code B1146 in an Infiniti for a right side curtain air bag module short?

The cost of repair can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts needed.

8. Are there any safety precautions to take when working on the right side curtain air bag module in an Infiniti to address OBDII code B1146?

It is essential to disconnect the vehicle's battery before working on any airbag components to prevent accidental deployment and ensure safety during repairs.

9. Can a DIY enthusiast with some automotive knowledge repair OBDII code B1146 related to a right side curtain air bag module short in an Infiniti?

While some simple diagnoses and repairs may be possible for DIY enthusiasts, working on airbag systems can be complex and dangerous, so it is recommended to seek professional assistance for such issues.

10. How often should I have the right side curtain air bag system in my Infiniti inspected to prevent issues like OBDII code B1146?

Regular inspections as part of routine maintenance or when experiencing any airbag-related symptoms are recommended to ensure the proper functioning of the airbag system and prevent potential faults like B1146.