AutoCodes – Generic – B0039

B0039 Code - Second Row Right Frontal Stage 1 Deployment Control

Quick Answer

When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. Common causes include Faulty Second Row Right Frontal Air Bag, Second Row Right Frontal Air Bag harness is open or shorted, Second Row Right Frontal Air Bag 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: B0039 indicates Second Row Right Frontal Stage 1 Deployment Control.
Common causes: Common causes include Faulty Second Row Right Frontal Air Bag, Second Row Right Frontal Air Bag harness is open or shorted, Second Row Right Frontal Air Bag 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 5,568

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

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 B0039 Description

When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. SDM then performs deployment loop voltage out of range test and deployment loop resistance measurement test. If voltage out of range test detects a short to voltage condition, the resistance measurement test will not be performed.

OBDII Code B0039 - Second Row Right Frontal Stage 1 Deployment Control - AutoCodes.com — B0039 Code - Second Row Right Frontal Stage 1 Deployment Control

What does this mean?

What are the Possible Causes of the DTC B0039?

Faulty Second Row Right Frontal Air Bag
Second Row Right Frontal Air Bag harness is open or shorted
Second Row Right Frontal Air Bag circuit poor electrical connection
Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0039?

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 B0039 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 B0039 code?

Need more information on how to fix the B0039 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0039 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B0039 Buick — Second Row Right Frontal Stage 1 Deployment Control
B0039 Cadillac — Second Row Right Frontal Stage 1 Deployment Control
B0039 Chevrolet — Second Row Right Frontal Stage 1 Deployment Control
B0039 GMC — Second Row Right Frontal Stage 1 Deployment Control

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.