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Engine-Codes – GMC – B0039 GMC

B0039 GMC Code - Second Row Right Frontal Stage 1 Deployment Control

Quick Answer

The B0039 GMC code refers to an issue with the Second Row Right Frontal Stage 1 Deployment Control in the vehicle's airbag system. Common causes include Faulty deployment control module, Damaged wiring or connectors in the airbag system, Malfunctioning sensor detecting a problem with the airbag. 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
B0039 GMC indicates Second Row Right Frontal Stage 1 Deployment Control.
Common causes
Common causes include Faulty deployment control module, Damaged wiring or connectors in the airbag system, Malfunctioning sensor detecting a problem with the airbag.
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 13, 2024
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Code B0039 GMC Description

The B0039 GMC code refers to an issue with the Second Row Right Frontal Stage 1 Deployment Control in the vehicle's airbag system. This code indicates that there is a problem with the deployment control for the airbag located in the second row on the right side of the vehicle. The airbag system is a crucial safety feature in modern vehicles, designed to deploy in the event of a collision to protect occupants from serious injury.

OBDII Code B0039 GMC - Second Row Right Frontal Stage 1 Deployment Control
B0039 GMC Code - Second Row Right Frontal Stage 1 Deployment Control

Common Causes of B0039 GMC

  1. Faulty deployment control module
  2. Damaged wiring or connectors in the airbag system
  3. Malfunctioning sensor detecting a problem with the airbag
  4. Physical damage to the airbag itself
  5. Corrosion or moisture affecting the airbag system components

Symptoms of B0039 GMC

  1. Illumination of the airbag warning light on the dashboard
  2. Diagnostic trouble code (DTC) B0039 stored in the vehicle's computer
  3. Inability to reset the airbag warning light
  4. Second row right airbag not deploying during a crash

How to Fix B0039 GMC

  1. Begin by diagnosing the specific cause of the B0039 code using a scan tool to retrieve the fault codes stored in the vehicle's computer.
  2. Inspect the wiring, connectors, and sensor associated with the second row right frontal airbag for any signs of damage or corrosion.
  3. Test the deployment control module to determine if it is functioning correctly or needs to be replaced.
  4. If necessary, replace any damaged components, such as wiring, connectors, sensors, or the airbag itself.
  5. Clear the fault codes from the vehicle's computer and perform a test to ensure that the airbag system is functioning properly.

Cost to Fix B0039 GMC

The cost of repairing the Second Row Right Frontal Stage 1 Deployment Control issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for this repair could range from $200 to $600, with labor costs adding an additional $100 to $300. Overall, the total repair cost for addressing the B0039 code could be in the range of $300 to $900. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the vehicle's make and model, the location of the repair shop, and the rates charged for parts and labor. It's recommended to consult with a qualified mechanic or repair shop to obtain a more accurate cost estimate for addressing this issue.

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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 B0039 GMC Code

1. What are the common symptoms of OBDII code B0039 GMC?

The common symptoms of OBDII code B0039 GMC, titled Second Row Right Frontal Stage 1 Deployment Control, include the airbag warning light illuminating on the dashboard and potential non-deployment of the airbag in the event of a crash.

2. What usually causes OBDII code B0039 GMC to trigger?

OBDII code B0039 GMC is typically triggered due to a fault in the Second Row Right Frontal Stage 1 Deployment Control circuit, which can be caused by issues such as faulty wiring, a malfunctioning airbag sensor, or a problem with the airbag control module.

3. How can I diagnose the cause of OBDII code B0039 GMC?

Diagnosing the cause of OBDII code B0039 GMC usually involves using a diagnostic scanner to retrieve the specific fault code, inspecting the wiring and connectors related to the Second Row Right Frontal Stage 1 Deployment Control circuit, and performing tests on the airbag system components.

4. Is it safe to drive with OBDII code B0039 GMC active?

It is not recommended to drive with OBDII code B0039 GMC active, as it indicates a potential issue with the airbag system, which is a critical safety component in the event of a collision. It is important to address the problem promptly to ensure the airbag functions as intended.

5. Can I reset OBDII code B0039 GMC without repairing the underlying issue?

While you can reset OBDII code B0039 GMC using a diagnostic scanner, it is crucial to address the underlying issue causing the fault code to prevent the airbag system from malfunctioning and potentially putting your safety at risk.

6. What are some common repair tips for fixing OBDII code B0039 GMC?

Common repair tips for OBDII code B0039 GMC include checking and repairing any damaged wiring, replacing faulty airbag sensors or components, and ensuring all connections are secure and free of corrosion.

7. How much does it typically cost to repair OBDII code B0039 GMC?

The cost of repairing OBDII code B0039 GMC can vary depending on the specific cause of the issue, the extent of the repairs needed, and labor rates in your area. It is advisable to consult with a qualified mechanic or dealership for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code B0039 GMC at home?

While some DIY enthusiasts may have the skills and tools to diagnose and repair OBDII code B0039 GMC at home, working on the airbag system requires caution and expertise due to safety concerns. It is recommended to seek professional help for this type of repair.

9. Are there any recalls or technical service bulletins related to OBDII code B0039 GMC?

Recalls and technical service bulletins related to OBDII code B0039 GMC may vary by model year and specific vehicle. It is advisable to check with the manufacturer or authorized service center to see if there are any relevant recalls or bulletins for your vehicle.

10. How can I prevent OBDII code B0039 GMC from occurring in the future?

To prevent OBDII code B0039 GMC from occurring in the future, it is essential to perform regular maintenance on your vehicle, including checking the airbag system for any signs of wear or damage, and addressing any issues promptly to ensure proper functionality.

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