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B0059 GMC Code - Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range

Quick Answer

The B0059 GMC code indicates that there is an issue with the right front/passenger pretensioner deployment loop voltage being out of range. Common causes include Faulty wiring or connectors in the right front/passenger pretensioner deployment loop, Loose or corroded connections in the pretensioner system, Malfunctioning pretensioner mechanism. 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
B0059 GMC indicates Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range.
Common causes
Common causes include Faulty wiring or connectors in the right front/passenger pretensioner deployment loop, Loose or corroded connections in the pretensioner system, Malfunctioning pretensioner mechanism.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B0059 GMC Description

The B0059 GMC code indicates that there is an issue with the right front/passenger pretensioner deployment loop voltage being out of range. The pretensioner is a safety feature in modern vehicles that tightens the seatbelt in the event of a collision, helping to restrain the occupant and reduce the risk of injury. The deployment loop is a crucial component of the pretensioner system, responsible for activating the mechanism when a crash is detected.

OBDII Code B0059 GMC - Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range
B0059 GMC Code - Right Front/Passenger Pretensioner Deployment Loop Voltage Out of Range

Common Causes of B0059 GMC

  1. Faulty wiring or connectors in the right front/passenger pretensioner deployment loop
  2. Loose or corroded connections in the pretensioner system
  3. Malfunctioning pretensioner mechanism
  4. Issues with the airbag control module
  5. Impact or damage to the vehicle that affects the pretensioner system

Symptoms of B0059 GMC

  1. Airbag warning light illuminated on the dashboard
  2. Seatbelt warning light flashing or staying on
  3. Inoperative or sluggish seatbelt pretensioner
  4. Diagnostic trouble code B0059 stored in the vehicle's computer system

How to Fix B0059 GMC

  1. Begin by diagnosing the specific cause of the B0059 code using a diagnostic scanner to retrieve fault codes and pinpoint the issue.
  2. Inspect the wiring, connectors, and components in the right front/passenger pretensioner deployment loop for any signs of damage, corrosion, or loose connections.
  3. Test the pretensioner mechanism to ensure it is functioning correctly and replace it if necessary.
  4. Check the airbag control module for any faults or malfunctions and address any issues found.
  5. Clear the diagnostic trouble codes from the vehicle's computer system and perform a test drive to verify that the problem has been resolved.

Cost to Fix B0059 GMC

The typical repair costs for addressing a B0059 GMC code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for fixing a pretensioner deployment loop voltage out of range issue can range from $200 to $500. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate of the repair costs.

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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 B0059 GMC Code

1. What are the common symptoms of OBDII code B0059 in a GMC vehicle?

- Common symptoms include an illuminated airbag warning light on the dashboard, as well as potential issues with the right front/passenger seatbelt pretensioner.

2. What does the OBDII code B0059 GMC indicate?

- The code B0059 indicates that the voltage in the right front/passenger pretensioner deployment loop is out of the expected range.

3. What are possible causes of OBDII code B0059 in a GMC vehicle?

- Possible causes include a faulty pretensioner, damaged wiring or connectors in the deployment loop, or issues with the airbag control module.

4. How can I diagnose the OBDII code B0059 in my GMC vehicle?

- Diagnosis typically involves using a scan tool to retrieve the specific trouble code, followed by inspecting the wiring, connectors, and components in the right front/passenger pretensioner system.

5. Can I still drive my GMC vehicle with OBDII code B0059?

- It is not recommended to drive the vehicle with an active airbag-related fault code, as it may affect the proper deployment of the airbag system in the event of a collision.

6. Is it safe to reset the OBDII code B0059 in a GMC vehicle?

- While resetting the code may temporarily turn off the warning light, it is crucial to address the underlying issue causing the fault code to ensure the airbag system functions correctly.

7. How can I repair OBDII code B0059 in my GMC vehicle?

- Repairing the code may involve replacing the right front/passenger seatbelt pretensioner, repairing or replacing damaged wiring or connectors, or reprogramming the airbag control module.

8. Will OBDII code B0059 cause the airbags to deploy unintentionally?

- OBDII code B0059 itself will not cause the airbags to deploy unintentionally, but it indicates a potential issue with the deployment loop that may affect the airbag system's proper operation.

9. Can I fix OBDII code B0059 in my GMC vehicle myself?

- While some DIY enthusiasts may attempt to diagnose and repair the issue, working on the airbag system requires proper knowledge and tools. It is recommended to seek professional assistance for safety reasons.

10. How much does it typically cost to repair OBDII code B0059 in a GMC vehicle?

- The cost of repairing OBDII code B0059 can vary depending on the specific cause of the issue, the parts needed for replacement, and labor costs. It is advisable to get a quote from a qualified mechanic or dealership.

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