AutoCodes – Generic – B1151

B1151 Code - Left 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 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: B1151 indicates Left Side Curtain Air Bag Module Short.
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.

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Code Popularity 2,203

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 Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B1151 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 Left Side Curtain Air Bag Module mainly consists of air bag and inflator which inflates the air bag.

OBDII Code B1151 - Left Side Curtain Air Bag Module Short - AutoCodes.com — B1151 Code - Left Side Curtain Air Bag Module Short

What does this mean?

What are the Possible Causes of the DTC B1151?

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 B1151?

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 B1151 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 B1151 code?

Need more information on how to fix the B1151 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1151 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1151 Infiniti — Left Side Curtain Air Bag Module Short
B1151 Nissan — Left Side Curtain Air Bag Module Short

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.