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Engine-Codes – Generic – B0039

B0039 Code - Second Row Right Frontal Stage 1 Deployment Control

Quick Answer

The B0039 diagnostic trouble code (DTC) refers to an issue with the Second Row Right Frontal Stage 1 Deployment Control system in the vehicle's airbag system. Common causes include Faulty or damaged deployment control module, Wiring or electrical issues in the airbag system, Sensor malfunction detecting occupant presence in the seat. 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 indicates Second Row Right Frontal Stage 1 Deployment Control.
Common causes
Common causes include Faulty or damaged deployment control module, Wiring or electrical issues in the airbag system, Sensor malfunction detecting occupant presence in the seat.
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 08, 2024
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Code B0039 Description

The B0039 diagnostic trouble code (DTC) refers to an issue with the Second Row Right Frontal Stage 1 Deployment Control system in the vehicle's airbag system. This code typically indicates a problem with the deployment control module responsible for activating the airbag in the right front seat of the second row in the event of a collision.

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

Common Causes of B0039

  1. Faulty or damaged deployment control module.
  2. Wiring or electrical issues in the airbag system.
  3. Sensor malfunction detecting occupant presence in the seat.
  4. Impact or collision causing damage to the airbag system components.
  5. Software or programming errors in the airbag control module.

Symptoms of B0039

  1. Airbag warning light illuminated on the dashboard.
  2. Inability to arm or disarm the airbag system.
  3. Audible warning chimes or alerts indicating a problem with the airbag system.
  4. Loss of communication with the airbag control module.
  5. Airbag system may not deploy in a collision.

How to Fix B0039

  1. Diagnose the specific cause of the code by using a professional diagnostic scan tool to read the trouble codes and pinpoint the issue.
  2. Inspect the wiring and connections in the airbag system for any damage or corrosion, repairing or replacing as needed.
  3. Test the airbag control module and sensors to ensure they are functioning correctly and replace any faulty components.
  4. Clear the trouble codes from the system and reset the airbag control module to ensure proper operation.
  5. Perform a thorough system check and test the airbag system to verify that the issue has been resolved and the airbag will deploy as intended.

Cost to Fix B0039

The cost of repairing a B0039 code can vary depending on the specific cause of the issue and the extent of the repairs needed. Generally, the cost of parts for repairing an airbag control module can range from $200 to $600, while labor costs can add an additional $100 to $200. Overall, a typical repair for this issue could range from $300 to $800, but it is recommended to obtain a detailed estimate from a professional auto repair shop based on the specific vehicle and location. Labor rates typically range from $80 to $150 per hour, but rates can vary based on the repair shop's location and expertise.

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Code B0039 Information for Specific Makes

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 Code

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

The common symptoms of code B0039 include the illumination of the airbag warning light on the dashboard and a possible diagnostic trouble code indicating an issue with the Second Row Right Frontal Stage 1 Deployment Control.

2. What could cause OBDII code B0039 to trigger?

Code B0039 may trigger due to a fault in the Second Row Right Frontal Stage 1 Deployment Control circuit, which can be caused by issues such as a faulty airbag sensor, damaged wiring, or a malfunctioning control module.

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

Diagnosing code B0039 typically involves using a professional OBDII scanner to retrieve the specific fault codes, followed by inspecting the wiring harness, connectors, and components associated with the Second Row Right Frontal Stage 1 Deployment Control for any signs of damage or corrosion.

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

It is not recommended to drive with an active B0039 code, as it indicates a potential issue with the airbag system, which could affect its proper deployment in the event of a collision. It is advisable to address the issue promptly to ensure the safety of the vehicle occupants.

5. Can I reset OBDII code B0039 on my own?

While you can attempt to clear the code using an OBDII scanner, it is important to note that simply clearing the code will not fix the underlying issue causing code B0039. It is recommended to diagnose and repair the root cause of the problem to prevent the code from reoccurring.

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

The cost of repairing code B0039 can vary depending on the specific cause of the issue. Repairs may involve replacing a faulty sensor, repairing damaged wiring, or reprogramming the control module. Costs can range from a few hundred to over a thousand dollars, including parts and labor.

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

While some DIY enthusiasts may have the skills to diagnose and repair issues related to code B0039, working on the airbag system can be complex and dangerous. It is recommended to seek professional help to ensure the proper diagnosis and safe repair of the problem.

8. Will disconnecting the battery reset OBDII code B0039?

Disconnecting the battery may temporarily clear the code, but it will not fix the underlying issue causing code B0039. The code is likely to reappear once the fault is detected again by the vehicle's system. It is best to address the root cause of the problem to resolve the issue permanently.

9. Are there any recalls related to OBDII code B0039?

Manufacturers occasionally issue recalls related to airbag system components, including those associated with code B0039. It is advisable to check with the vehicle manufacturer or a dealership to inquire about any relevant recalls that may apply to your specific make and model.

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

To prevent code B0039 from occurring in the future, it is essential to perform regular maintenance on the vehicle's airbag system, including checking for any signs of wear or damage, ensuring proper connections, and addressing any warning lights promptly to prevent potential issues.

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