AutoCodes – GMC – B0058 GMC

B0058 GMC Code - Right Front/Passenger Pretensioner Deployment Loop Open

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: B0058 GMC indicates Right Front/Passenger Pretensioner Deployment Loop Open.
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 4,394

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 B0058 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 B0058 GMC - Right Front/Passenger Pretensioner Deployment Loop Open - AutoCodes.com — B0058 GMC Code - Right Front/Passenger Pretensioner Deployment Loop Open

What does this mean?

What are the Possible Causes of the DTC B0058 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 B0058 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 B0058 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 B0058 GMC code?

Need more information on how to fix the B0058 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0058 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 B0058 GMC Code

1. What are the common symptoms of OBDII code B0058 GMC?

The common symptoms of code B0058 GMC include the airbag warning light illuminating on the dashboard and a potential loss of functionality of the right front passenger seatbelt pretensioner.

2. What does the OBDII code B0058 GMC indicate?

OBDII code B0058 GMC indicates a problem with the right front passenger pretensioner deployment loop being open, which means that the circuit for the seatbelt pretensioner is not functioning properly.

3. What are the possible causes of OBDII code B0058 GMC?

Possible causes of code B0058 GMC include a faulty pretensioner deployment loop, damaged wiring or connectors in the system, a blown fuse, or a problem with the airbag control module.

4. How can I diagnose the issue related to code B0058 GMC?

Diagnosing the issue related to code B0058 GMC requires using a diagnostic scanner to retrieve the specific fault codes, inspecting the wiring and connectors for damage, checking the fuses related to the airbag system, and testing the pretensioner deployment loop for continuity.

5. Is it safe to drive with OBDII code B0058 GMC present?

It is not recommended to drive with OBDII code B0058 GMC present because it indicates a potential issue with the right front passenger seatbelt pretensioner, which is an important safety component in the event of a collision.

6. Can I reset OBDII code B0058 GMC on my own?

While you can clear the code temporarily with a diagnostic scanner, it is essential to diagnose and repair the underlying issue causing code B0058 GMC to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code B0058 GMC?

The cost of repairing OBDII code B0058 GMC can vary depending on the specific cause of the issue, but it may involve replacing the pretensioner deployment loop, repairing damaged wiring, or addressing other components of the airbag system. Costs can range from a few hundred to over a thousand dollars.

8. Can I fix OBDII code B0058 GMC myself?

If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair OBDII code B0058 GMC yourself. However, it is recommended to consult a professional if you are unsure about diagnosing or fixing the issue.

9. How important is it to address OBDII code B0058 GMC promptly?

It is crucial to address OBDII code B0058 GMC promptly because it indicates a potential safety risk in the event of a collision, as the right front passenger seatbelt pretensioner may not deploy correctly to restrain the occupant properly.

10. Will OBDII code B0058 GMC cause my airbags to deploy unexpectedly?

Code B0058 GMC itself will not cause the airbags to deploy unexpectedly. However, it indicates a fault in the airbag system that may affect the proper deployment of the airbags and seatbelt pretensioners in the event of a collision, so it is important to address the issue promptly.