AutoCodes – Buick – B0064 Buick

B0064 Buick Code - Left Front/Driver Pretensioner Deployment Loop Resistance Low

Quick Answer

The driver seat belt pretensioner deployment loop consists of a seat belt pretensioner - LF and the seat belt pretensioner - LF high and low circuits. Common causes include Faulty Left Front/Driver Pretensioner, Left Front/Driver Pretensioner harness is open or shorted, Left Front/Driver Pretensioner 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: B0064 Buick indicates Left Front/Driver Pretensioner Deployment Loop Resistance Low.
Common causes: Common causes include Faulty Left Front/Driver Pretensioner, Left Front/Driver Pretensioner harness is open or shorted, Left Front/Driver Pretensioner 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 1,104

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 B0064 Buick Description

The driver seat belt pretensioner deployment loop consists of a seat belt pretensioner - LF and the seat belt pretensioner - LF high and low circuits. A shorting bar used within the seat belt pretensioner connector shorts together both the seat belt pretensioner high and low circuits when the connector is disconnected. This will help to prevent unwanted deployment of the pretensioner during servicing. During a frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy the seat belt pretensioner. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a Diagnostic Trouble Code (DTC) will be stored in memory.

OBDII Code B0064 Buick - Left Front/Driver Pretensioner Deployment Loop Resistance Low - AutoCodes.com — B0064 Buick Code - Left Front/Driver Pretensioner Deployment Loop Resistance Low

What does this mean?

What are the Possible Causes of the DTC B0064 Buick?

Faulty Left Front/Driver Pretensioner
Left Front/Driver Pretensioner harness is open or shorted
Left Front/Driver Pretensioner circuit poor electrical connection
Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0064 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 B0064 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 B0064 Buick code?

Need more information on how to fix the B0064 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0064 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 B0064 Buick Code

1. What are the common symptoms of OBDII code B0064 in a Buick related to the Left Front/Driver Pretensioner Deployment Loop Resistance Low?

The common symptoms include the airbag warning light illuminating on the dashboard and a potential message indicating an issue with the driver-side pretensioner system.

2. What are the possible causes of OBDII code B0064 in a Buick indicating a low resistance in the left front driver pretensioner deployment loop?

Possible causes include a faulty pretensioner deployment loop, damaged wiring or connectors in the system, or a problem with the pretensioner itself.

3. How can I diagnose the OBDII code B0064 in my Buick related to the left front driver pretensioner deployment loop resistance being low?

To diagnose this issue, a professional diagnostic scanner is needed to retrieve the specific fault codes and further pinpoint the exact cause of the problem in the pretensioner system.

4. Can I drive my Buick with the OBDII code B0064 indicating a low resistance in the left front driver pretensioner deployment loop?

It is not recommended to drive the vehicle with this code present, as it indicates a potential safety issue with the airbag system that may not deploy correctly in the event of an accident.

5. How can I repair OBDII code B0064 in a Buick related to the left front driver pretensioner deployment loop resistance being low?

Repairing this code typically involves inspecting and repairing any damaged wiring or connectors in the pretensioner system, replacing the faulty pretensioner deployment loop, or addressing any issues with the pretensioner itself.

6. Is it safe to reset the OBDII code B0064 in my Buick without addressing the underlying issue?

It is not recommended to simply reset the code without addressing the root cause, as it may lead to the airbag system not functioning properly in the event of an accident.

7. How much does it cost to repair OBDII code B0064 indicating a low resistance in the left front driver pretensioner deployment loop in a Buick?

The cost of repair can vary depending on the exact cause of the issue, but it typically involves diagnostic fees, parts replacement, and labor costs, which can range from a few hundred to over a thousand dollars.

8. Can a DIY enthusiast fix OBDII code B0064 in a Buick or should I seek professional help?

While some DIY enthusiasts may have the skills to diagnose and repair this issue, it is recommended to seek professional help, especially when dealing with safety-critical components like the airbag system.

9. Are there any recalls or service bulletins related to OBDII code B0064 in Buick vehicles?

It's advisable to check with the manufacturer or authorized dealerships for any recalls or service bulletins related to this specific OBDII code, as they may provide guidance or assistance with the repair.

10. How can I prevent OBDII code B0064 from occurring in my Buick's left front driver pretensioner deployment loop in the future?

Regular maintenance checks, proper handling of the airbag system components, and addressing any warning signs promptly can help prevent the recurrence of this issue in the future.