AutoCodes – Toyota – B1000:31 Toyota

B1000:31 Toyota Code - Center Airbag Sensor Assembly Malfunction

Quick Answer

The Airbag Sensor Assembly consists of a deceleration sensor, safing sensor, drive circuit, diagnosis circuit, ignition control, etc. Common causes include Faulty Airbag Sensor Assembly, Airbag Sensor Assembly harness is open or shorted, Airbag Sensor Assembly 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: B1000:31 Toyota indicates Center Airbag Sensor Assembly Malfunction.
Common causes: Common causes include Faulty Airbag Sensor Assembly, Airbag Sensor Assembly harness is open or shorted, Airbag Sensor Assembly 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 5,188

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 Sep 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1000:31 Toyota Description

The Airbag Sensor Assembly consists of a deceleration sensor, safing sensor, drive circuit, diagnosis circuit, ignition control, etc.
If the Airbag Sensor Assembly receives signals from the deceleration sensor, it determines whether or not the Supplemental Restraint System (SRS) should be activated.
The Diagnostic Trouble Code (DTC) B1000/31 is stored when a malfunction is detected in the Airbag Sensor Assembly.

OBDII Code B1000:31 Toyota - Center Airbag Sensor Assembly Malfunction - AutoCodes.com — B1000:31 Toyota Code - Center Airbag Sensor Assembly Malfunction

What does this mean?

What are the Possible Causes of the DTC B1000:31 Toyota?

Faulty Airbag Sensor Assembly
Airbag Sensor Assembly harness is open or shorted
Airbag Sensor Assembly circuit poor electrical connection

How to Fix the DTC B1000:31 Toyota?

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 B1000:31 Toyota 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 B1000:31 Toyota code?

Need more information on how to fix the B1000:31 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1000:31 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

B1000:31 2013 Toyota RAV4 — Center Airbag Sensor Assembly Malfunction
B1000:31 2014 Toyota RAV4 — Center Airbag Sensor Assembly Malfunction
B1000:31 2015 Toyota RAV4 — Center Airbag Sensor Assembly Malfunction
B1000:31 2016 Toyota RAV4 — Center Airbag Sensor Assembly Malfunction
B1000:31 2017 Toyota RAV4 — Center Airbag Sensor Assembly Malfunction
B1000:31 2018 Toyota RAV4 — Center Airbag Sensor Assembly Malfunction

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 B1000:31 Toyota Code

1. What does the OBDII code B1000:31 for a Toyota indicate?

The code B1000:31 specifically points to a Center Airbag Sensor Assembly Malfunction in a Toyota vehicle.

2. What are the common symptoms of a Center Airbag Sensor Assembly malfunction?

Common symptoms include the airbag warning light illuminating on the dashboard, the airbag system not functioning properly, and potential issues with the vehicle's safety systems.

3. What are the possible causes of the B1000:31 code in a Toyota?

Causes of the B1000:31 code can include a faulty center airbag sensor assembly, damaged wiring or connectors related to the airbag system, or a malfunction in the airbag control module.

4. How serious is a Center Airbag Sensor Assembly malfunction in a Toyota?

A malfunction in the center airbag sensor assembly is a serious issue as it can affect the proper functioning of the airbag system, compromising vehicle safety in the event of a collision.

5. Can I continue driving my Toyota with the B1000:31 code present?

It is not recommended to drive the vehicle with the B1000:31 code active, as it indicates a problem with the airbag system that could potentially result in the airbags not deploying correctly in an accident.

6. How can I diagnose and repair a B1000:31 code in my Toyota?

Diagnosing and repairing the B1000:31 code typically requires a professional scan tool to read the error code, followed by thorough inspection of the center airbag sensor assembly, wiring, and connectors. Repairs may involve replacing faulty components or repairing damaged wiring.

7. Is it possible to reset the B1000:31 code in a Toyota without fixing the underlying issue?

Resetting the B1000:31 code without addressing the root cause, such as fixing the center airbag sensor assembly malfunction, is not recommended. The code is likely to reappear until the issue is resolved.

8. How much does it cost to repair a Center Airbag Sensor Assembly malfunction in a Toyota?

The cost of repairing a B1000:31 code can vary depending on the specific issue causing the malfunction, the extent of repairs needed, and labor costs. It is advisable to consult with a professional mechanic for an accurate estimate.

9. Are there any safety precautions to take if the B1000:31 code is present in my Toyota?

If the B1000:31 code is present, it is crucial to prioritize safety by avoiding driving the vehicle until the airbag system is inspected and repaired by a qualified technician to ensure it functions correctly in an emergency.

10. Can a DIY enthusiast with automotive experience fix a B1000:31 code in a Toyota?

While some DIY enthusiasts may have the skills to diagnose and repair certain automotive issues, addressing a B1000:31 code related to the airbag system is best left to experienced professionals due to the critical safety implications involved.