AutoCodes – Lexus – B1144 Lexus

B1144 Lexus Code - Door Side Airbag Sensor Malfunction

Quick Answer

The Door Side Airbag Sensor (Left Side) circuit consists of the airbag sensor assembly and Door Side Airbag Sensor (Left Side). Common causes include Faulty Door Side Airbag Sensor (Left Side), Door Side Airbag Sensor (Left Side) harness is open or shorted, Door Side Airbag Sensor (Left Side) 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: B1144 Lexus indicates Door Side Airbag Sensor Malfunction.
Common causes: Common causes include Faulty Door Side Airbag Sensor (Left Side), Door Side Airbag Sensor (Left Side) harness is open or shorted, Door Side Airbag Sensor (Left Side) 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 1,333

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 B1144 Lexus Description

The Door Side Airbag Sensor (Left Side) circuit consists of the airbag sensor assembly and Door Side Airbag Sensor (Left Side). The Diagnostic Trouble Code (DTC) B1144 is recorded when a malfunction is detected in the Door Side Airbag Sensor (Left Side) circuit.

OBDII Code B1144 Lexus - Door Side Airbag Sensor Malfunction - AutoCodes.com — B1144 Lexus Code - Door Side Airbag Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B1144 Lexus?

Faulty Door Side Airbag Sensor (Left Side)
Door Side Airbag Sensor (Left Side) harness is open or shorted
Door Side Airbag Sensor (Left Side) circuit poor electrical connection
Faulty Airbag Sensor Assembly

How to Fix the DTC B1144 Lexus?

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 B1144 Lexus 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 B1144 Lexus code?

Need more information on how to fix the B1144 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1144 Lexus 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 B1144 Lexus Code

1. What are the common symptoms of OBDII code B1144 in a Lexus related to the door side airbag sensor malfunction?

The common symptoms include the airbag warning light illuminating on the dashboard and a diagnostic trouble code B1144 being stored in the vehicle's computer system.

2. What are some possible causes of the OBDII code B1144 in a Lexus indicating a door side airbag sensor malfunction?

Possible causes of this code include a faulty door side airbag sensor, damaged wiring or connectors, or a malfunction in the airbag control module.

3. How can I diagnose the OBDII code B1144 in a Lexus related to the door side airbag sensor malfunction?

Diagnosing this code typically involves using a diagnostic scan tool to retrieve the specific trouble code, inspecting the door side airbag sensor and its connections, and testing the sensor for proper functionality.

4. Is it safe to drive my Lexus with OBDII code B1144 indicating a door side airbag sensor malfunction?

It is not recommended to drive the vehicle with an active airbag sensor malfunction as it may affect the proper deployment of the side airbag in case of an accident.

5. Can I reset the OBDII code B1144 in my Lexus related to the door side airbag sensor malfunction?

Resetting the code without addressing the underlying issue will not solve the problem. It is important to diagnose and repair the root cause of the malfunction before attempting to clear the code.

6. How can I repair the OBDII code B1144 in my Lexus indicating a door side airbag sensor malfunction?

Repairing this code often involves replacing the faulty door side airbag sensor, repairing damaged wiring or connectors, or reprogramming the airbag control module as needed.

7. Are there any safety precautions I should take when working on the door side airbag sensor in my Lexus?

When working on airbag components, it is crucial to disconnect the vehicle's battery and wait for at least 10 minutes before starting any repairs to prevent accidental airbag deployment.

8. How much does it typically cost to repair the OBDII code B1144 in a Lexus due to a door side airbag sensor malfunction?

The cost of repair can vary depending on the specific issue and the labor rates in your area. It is recommended to consult with a trusted mechanic or dealership for an accurate estimate.

9. Can a DIY enthusiast with some automotive experience fix the OBDII code B1144 related to a door side airbag sensor malfunction in a Lexus?

While some DIY enthusiasts may have the skills to diagnose and repair this issue, working on airbag systems requires caution and precision. It is recommended to seek professional help if unsure.

10. How often should I have the door side airbag system in my Lexus checked to prevent issues like OBDII code B1144 from occurring?

Regular maintenance and inspection of the airbag system, including the door side airbag sensor, should be performed as part of routine vehicle checks or during scheduled services to prevent malfunctions and ensure safety.