AutoCodes – Chevrolet – B0064 Chevrolet

B0064 Chevrolet 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 Chevrolet 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 2,753

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

What does this mean?

What are the Possible Causes of the DTC B0064 Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

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

Need Help with the Code?

Get the B0064 Chevrolet 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 Chevrolet Code

1. What are common symptoms of OBDII code B0064 Chevrolet?

The common symptoms of code B0064 include the airbag warning light illuminating on the dashboard and a message indicating an issue with the Left Front/Driver Pretensioner Deployment Loop Resistance.

2. What does the OBDII code B0064 Chevrolet indicate?

The code B0064 indicates that the resistance in the left front/driver pretensioner deployment loop is too low, which could affect the proper functioning of the airbag system.

3. What are possible causes of OBDII code B0064 Chevrolet?

Possible causes of code B0064 include faulty wiring connections, a short circuit in the deployment loop, or a malfunctioning pretensioner assembly in the driver's seat.

4. How can I diagnose the issue related to OBDII code B0064 Chevrolet?

Diagnosing the issue requires using a diagnostic scanner to retrieve the specific fault codes, and then inspecting the wiring and connections related to the left front/driver pretensioner deployment loop.

5. Can I continue driving with OBDII code B0064 Chevrolet present?

It is not recommended to continue driving with the B0064 code present, as it indicates a potential issue with the airbag system, which is a critical safety component in your vehicle.

6. How can I repair OBDII code B0064 Chevrolet?

Repairing the B0064 code may involve checking and repairing any damaged wiring, replacing the left front/driver pretensioner assembly if necessary, and clearing the fault codes with a diagnostic scanner.

7. Is it safe to reset the OBDII code B0064 Chevrolet without fixing the underlying issue?

Resetting the code without fixing the underlying issue is not recommended, as it may lead to the airbag system not functioning properly in the event of an accident.

8. How much does it cost to repair OBDII code B0064 Chevrolet?

The cost of repairing the B0064 code can vary depending on the extent of the issue, the parts needed for replacement, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

9. Can I prevent OBDII code B0064 Chevrolet from occurring again in the future?

Routine maintenance and inspection of the airbag system, including checking the wiring and connections, can help prevent the recurrence of the B0064 code in the future.

10. Does OBDII code B0064 Chevrolet pose a safety risk?

Yes, the B0064 code poses a safety risk as it indicates a potential issue with the airbag system, which may affect its deployment in the event of a collision. It is essential to address this issue promptly.