AutoCodes – Lexus – B1141 Lexus

B1141 Lexus Code - Side Airbag Sensor Assembly Malfunction

Quick Answer

The Side Airbag Sensor Assembly (Left Side) consists of the safing sensor, diagnosis circuit, and lateral deceleration sensor, etc. Common causes include Faulty Side Airbag Sensor Assembly (Left Side), Side Airbag Sensor Assembly (Left Side) harness is open or shorted, Side Airbag Sensor Assembly (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: B1141 Lexus indicates Side Airbag Sensor Assembly Malfunction.
Common causes: Common causes include Faulty Side Airbag Sensor Assembly (Left Side), Side Airbag Sensor Assembly (Left Side) harness is open or shorted, Side Airbag Sensor Assembly (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 6,908

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
FAQs
Comments
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Code B1141 Lexus Description

The Side Airbag Sensor Assembly (Left Side) consists of the safing sensor, diagnosis circuit, and lateral deceleration sensor, etc. It receives signals from the lateral deceleration sensor, judges whether or not the SRS must be activated, and detects a diagnosis system malfunction. DTC B1141 is recorded when the occurrence of a malfunction in the Side Airbag Sensor Assembly (Left Side) is detected.

OBDII Code B1141 Lexus - Side Airbag Sensor Assembly Malfunction - AutoCodes.com — B1141 Lexus Code - Side Airbag Sensor Assembly Malfunction

What does this mean?

What are the Possible Causes of the DTC B1141 Lexus?

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

How to Fix the DTC B1141 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 B1141 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 B1141 Lexus code?

Need more information on how to fix the B1141 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1141 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 B1141 Lexus Code

1. What are the common symptoms of OBDII code B1141 in a Lexus related to the Side Airbag Sensor Assembly Malfunction?

- Common symptoms include the airbag warning light on the dashboard staying illuminated, potential non-deployment of the side airbags during an accident, and diagnostic trouble code B1141 stored in the vehicle's system.

2. What are some possible causes of OBDII code B1141 in a Lexus indicating a Side Airbag Sensor Assembly Malfunction?

- Possible causes include faulty side airbag sensor assembly, damaged wiring or connectors in the airbag system, or a malfunctioning airbag control module.

3. How can I diagnose the OBDII code B1141 in my Lexus for the Side Airbag Sensor Assembly Malfunction?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code B1141, inspecting the side airbag sensor assembly and related wiring for any visible damage, and conducting further electrical testing as needed.

4. Is it safe to drive my Lexus with the OBDII code B1141 and the Side Airbag Sensor Assembly Malfunction?

- It is not recommended to drive the vehicle with a malfunctioning side airbag sensor assembly, as it may compromise the effectiveness of the side airbags in case of an accident. It is advised to have the issue addressed promptly by a qualified technician.

5. How can I repair OBDII code B1141 related to the Side Airbag Sensor Assembly Malfunction in my Lexus?

- Repair options may include replacing the faulty side airbag sensor assembly, repairing or replacing damaged wiring or connectors, or reprogramming the airbag control module. It is recommended to consult a professional for proper diagnosis and repair.

6. Can I reset the OBDII code B1141 in my Lexus after repairing the Side Airbag Sensor Assembly Malfunction?

- Once the issue causing the code B1141 is repaired, the code can be cleared using an OBDII scanner to reset the airbag system. However, it is important to ensure that the repair was successful and that the airbag system is functioning properly before clearing the code.

7. How much does it typically cost to repair OBDII code B1141 in a Lexus due to the Side Airbag Sensor Assembly Malfunction?

- The cost of repair can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It is advisable to obtain estimates from reputable repair shops or dealerships for an accurate cost assessment.

8. Are there any recalls or technical service bulletins related to OBDII code B1141 and the Side Airbag Sensor Assembly Malfunction in Lexus vehicles?

- It is recommended to check with your local Lexus dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins addressing the specific issue with the side airbag sensor assembly malfunction and code B1141 in your vehicle.

9. How often should the side airbag sensor assembly be inspected in a Lexus to prevent OBDII code B1141 from occurring?

- It is advisable to have the airbag system, including the side airbag sensor assembly, inspected during routine maintenance or service intervals to ensure proper functionality and potentially prevent issues such as code B1141 from arising.

10. Can OBDII code B1141 related to the Side Airbag Sensor Assembly Malfunction in a Lexus be triggered by any other factors besides component failures?

- While component failures are common causes of code B1141, other factors such as improper installation of aftermarket accessories, water damage, or vehicle accidents can also lead to the malfunction of the side airbag sensor assembly and trigger the OBDII code.