AutoCodes – GMC – B0057 GMC

B0057 GMC Code - Right Front/Passenger Pretensioner Deployment Loop Resistance Low

Quick Answer

The passenger seat belt pretensioner deployment loop consists of a seat belt pretensioner - RF and the seat belt pretensioner - RF high and low circuits. Common causes include Faulty Right Front/Passenger Pretensioner, Right Front/Passenger Pretensioner harness is open or shorted, Right Front/Passenger 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: B0057 GMC indicates Right Front/Passenger Pretensioner Deployment Loop Resistance Low.
Common causes: Common causes include Faulty Right Front/Passenger Pretensioner, Right Front/Passenger Pretensioner harness is open or shorted, Right Front/Passenger 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 1,532

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 B0057 GMC Description

The passenger seat belt pretensioner deployment loop consists of a seat belt pretensioner - RF and the seat belt pretensioner - RF 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 B0057 GMC - Right Front/Passenger Pretensioner Deployment Loop Resistance Low - AutoCodes.com — B0057 GMC Code - Right Front/Passenger Pretensioner Deployment Loop Resistance Low

What does this mean?

What are the Possible Causes of the DTC B0057 GMC?

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

How to Fix the DTC B0057 GMC?

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 B0057 GMC 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 B0057 GMC code?

Need more information on how to fix the B0057 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0057 GMC 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 B0057 GMC Code

1. What are the common symptoms of OBDII code B0057 GMC?

The common symptoms of OBDII code B0057 GMC include the airbag warning light illuminating on the dashboard and a possible message indicating an issue with the right front/passenger pretensioner deployment loop.

2. What does the OBDII code B0057 GMC indicate?

OBDII code B0057 GMC indicates that the right front/passenger pretensioner deployment loop's resistance is low, which can affect the proper deployment of the airbag system during a collision.

3. What are the possible causes of OBDII code B0057 GMC?

Possible causes of OBDII code B0057 GMC include a faulty right front/passenger pretensioner, damaged wiring or connectors in the deployment loop circuit, or issues with the airbag control module.

4. How can I diagnose the cause of OBDII code B0057 GMC?

To diagnose the cause of OBDII code B0057 GMC, a thorough inspection of the right front/passenger pretensioner, wiring, connectors, and airbag control module is necessary. Using a diagnostic scanner to retrieve specific fault codes can also help pinpoint the issue.

5. How can I repair OBDII code B0057 GMC?

Repairing OBDII code B0057 GMC may involve replacing the right front/passenger pretensioner, repairing or replacing damaged wiring or connectors in the deployment loop circuit, or reprogramming the airbag control module if needed.

6. Is it safe to drive with OBDII code B0057 GMC illuminated?

It is not recommended to drive with OBDII code B0057 GMC illuminated, as it indicates a potential issue with the airbag system that may affect its proper function during a collision. It is advisable to address the problem promptly.

7. Can I reset OBDII code B0057 GMC without fixing the underlying issue?

While you can clear the OBDII code B0057 GMC using a diagnostic scanner, it is crucial to address the underlying issue causing the code to prevent potential safety risks associated with the airbag system's improper function.

8. How much does it cost to repair OBDII code B0057 GMC?

The cost to repair OBDII code B0057 GMC can vary depending on the specific cause of the issue, the parts needed for repair, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

9. Will OBDII code B0057 GMC affect the vehicle's overall performance?

OBDII code B0057 GMC is related to the airbag system and may not directly impact the vehicle's overall performance. However, ensuring the proper function of the airbag system is crucial for occupant safety in the event of a collision.

10. How can I prevent OBDII code B0057 GMC from recurring?

Regular maintenance and inspections of the airbag system, including the right front/passenger pretensioner and related components, can help prevent OBDII code B0057 GMC from recurring. Addressing any warning signs promptly can also help maintain the system's reliability.