AutoCodes – Buick – B0031 Buick

B0031 Buick Code - Second Row Left Frontal Stage 1 Deployment Control

Quick Answer

When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. Common causes include Faulty Second Row Left Frontal Air Bag, Second Row Left Frontal Air Bag harness is open or shorted, Second Row Left Frontal Air Bag 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: B0031 Buick indicates Second Row Left Frontal Stage 1 Deployment Control.
Common causes: Common causes include Faulty Second Row Left Frontal Air Bag, Second Row Left Frontal Air Bag harness is open or shorted, Second Row Left Frontal Air Bag 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 1,911

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0031 Buick Description

When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. SDM then performs deployment loop voltage out of range test and deployment loop resistance measurement test. If voltage out of range test detects a short to voltage condition, the resistance measurement test will not be performed.

OBDII Code B0031 Buick - Second Row Left Frontal Stage 1 Deployment Control - AutoCodes.com — B0031 Buick Code - Second Row Left Frontal Stage 1 Deployment Control

What does this mean?

What are the Possible Causes of the DTC B0031 Buick?

Faulty Second Row Left Frontal Air Bag
Second Row Left Frontal Air Bag harness is open or shorted
Second Row Left Frontal Air Bag circuit poor electrical connection
Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0031 Buick?

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 B0031 Buick 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 B0031 Buick code?

Need more information on how to fix the B0031 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0031 Buick 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 B0031 Buick Code

1. What are common symptoms of OBDII code B0031 in a Buick related to the Second Row Left Frontal Stage 1 Deployment Control?

- Common symptoms include the airbag warning light illuminating on the dashboard and possible deployment issues with the left frontal airbag in the second row.

2. What are possible causes of OBDII code B0031 in a Buick?

- Possible causes can include faulty wiring connections, a defective impact sensor, issues with the airbag module, or a malfunction in the airbag deployment control circuit.

3. How serious is OBDII code B0031 in a Buick?

- OBDII code B0031 indicates a problem with the Second Row Left Frontal Stage 1 Deployment Control, which can affect the proper deployment of the airbag in the event of a collision. It is important to address this issue promptly to ensure the safety features of the vehicle are functioning correctly.

4. Can I continue driving my Buick with OBDII code B0031 present?

- It is not recommended to drive the vehicle with OBDII code B0031 present, as it indicates a potential issue with the airbag system. Driving with a faulty airbag system can compromise your safety in the event of an accident.

5. How can I diagnose and repair OBDII code B0031 in my Buick?

- Diagnosing and repairing OBDII code B0031 typically requires specialized equipment to read the fault codes, identify the specific cause of the issue, and then address the underlying problem. It is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair.

6. Are there any DIY tips for fixing OBDII code B0031 in a Buick?

- While some basic troubleshooting steps can be taken, such as checking for loose connections or damaged wiring, it is generally recommended to seek professional assistance when dealing with airbag system issues like OBDII code B0031 to ensure proper diagnosis and repair.

7. How much does it cost to repair OBDII code B0031 in a Buick?

- The cost of repairing OBDII code B0031 can vary depending on the specific cause of the issue and the extent of the repairs needed. It is advisable to obtain a diagnostic from a professional to get an accurate estimate of the repair costs.

8. Can OBDII code B0031 be reset without fixing the underlying issue in a Buick?

- Resetting the OBDII code without addressing the underlying problem will not solve the issue. The fault code is likely to reappear until the root cause of the problem is properly diagnosed and repaired.

9. How can I prevent OBDII code B0031 from occurring in my Buick?

- To prevent OBDII code B0031, it is important to perform regular maintenance on your vehicle, including checking the airbag system for any signs of wear or damage. Following the manufacturer's recommended service schedule can help prevent such issues from occurring.

10. Is OBDII code B0031 specific to Buick vehicles only?

- OBDII code B0031 related to the Second Row Left Frontal Stage 1 Deployment Control is specific to Buick vehicles, as it pertains to the airbag system configuration in those particular models.