AutoCodes – Infiniti – B1051 Infiniti

B1051 Infiniti Code - Driver Air Bag Module Short

Quick Answer

The driver air bag module is dual stage and wired to the air bag diagnosis sensor unit through the spiral cable. Common causes include Faulty Driver Air Bag, Faulty Spiral Cable, Driver Air Bag harness is shorted. 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: B1051 Infiniti indicates Driver Air Bag Module Short.
Common causes: Common causes include Faulty Driver Air Bag, Faulty Spiral Cable, Driver Air Bag harness is shorted.
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 7,238

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 Mar 11, 2021

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1051 Infiniti Description

The driver air bag module is dual stage and wired to the air bag diagnosis sensor unit through the spiral cable. The air bag diagnosis sensor unit will monitor for opens and shorts in detected lines to the driver air bag module including the spiral cable. In case of frontal 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.

OBDII Code B1051 Infiniti - Driver Air Bag Module Short - AutoCodes.com — B1051 Infiniti Code - Driver Air Bag Module Short

What does this mean?

What are the Possible Causes of the DTC B1051 Infiniti?

Faulty Driver Air Bag
Faulty Spiral Cable
Driver Air Bag harness is shorted
Driver Air Bag circuit poor electrical connection

How to Fix the DTC B1051 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 does this mean?

Code Tech Notes

Factory Service Manual Repair Order:

1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the driver air bag module.
4. Replace the spiral cable.
5. Replace the air bag diagnosis sensor unit.
6. Replace the related harness.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1051 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 B1051 Infiniti code?

Need more information on how to fix the B1051 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1051 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 B1051 Infiniti Code

What does the OBDII code B1051 indicate for an Infiniti vehicle?

B1051 indicates a fault related to the driver's airbag module, specifically a short circuit in the module's wiring or connectors.

What are common symptoms associated with the B1051 code?

Common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the airbag deploying correctly in a collision.

What could cause the B1051 code to trigger?

Causes may include damaged wiring or connectors, a faulty driver airbag module, or issues with the vehicle's supplemental restraint system (SRS).

How can I diagnose the B1051 code?

To diagnose B1051, use an OBDII scanner to confirm the code, then visually inspect the airbag module wiring and connectors for damage or corrosion.

Can I clear the B1051 code without fixing the underlying issue?

While you can clear the code, it will likely reappear if the underlying issue is not resolved, and the airbag system may remain inoperative.

What are some repair tips for fixing the B1051 code?

Repair tips include checking and repairing any damaged wiring or connectors, ensuring all connections are secure, and replacing the driver airbag module if necessary.

Is it safe to drive a vehicle with a B1051 code?

It is not safe to drive a vehicle with a B1051 code, as the airbag system may not function properly during an accident.

How much might it cost to repair the issue related to the B1051 code?

Repair costs can vary widely, typically ranging from $100 to $1,000 or more, depending on whether wiring repairs or module replacement is needed.

Should I attempt to fix the B1051 code myself?

If you are experienced with automotive electrical systems, you may attempt repairs, but if unsure, it's best to consult a professional mechanic to ensure safety and proper handling of the airbag system.