AutoCodes – GMC – B003B GMC

B003B GMC Code - Second Row Right Frontal Stage 3 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: B003B GMC indicates Second Row Right Frontal Stage 3 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 1,201

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 Mar 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B003B GMC 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 B003B GMC - Second Row Right Frontal Stage 3 Deployment Control - AutoCodes.com — B003B GMC Code - Second Row Right Frontal Stage 3 Deployment Control

What does this mean?

What are the Possible Causes of the DTC B003B GMC?

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 B003B 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 B003B 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 B003B GMC code?

Need more information on how to fix the B003B GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B003B 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 B003B GMC Code

1. What are the common symptoms of OBDII code B003B GMC?

The common symptoms of OBDII code B003B GMC, which refers to Second Row Right Frontal Stage 3 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 can cause OBDII code B003B GMC to trigger?

OBDII code B003B GMC can be triggered due to issues such as a faulty second row right frontal airbag sensor, damaged wiring or connections in the airbag system, or a problem with the airbag control module.

3. How serious is OBDII code B003B GMC?

OBDII code B003B GMC is a serious issue as it relates to the deployment control of the second row right frontal airbag. It can affect the proper functioning of the airbag system, potentially compromising occupant safety in the event of a collision.

4. How can I diagnose OBDII code B003B GMC?

Diagnosing OBDII code B003B GMC requires using an OBDII scanner to retrieve the code from the vehicle's computer system. Additionally, a thorough inspection of the airbag system components, such as sensors, wiring, and the control module, may be necessary to pinpoint the exact cause.

5. Can I continue driving with OBDII code B003B GMC present?

It is not recommended to continue driving with OBDII code B003B GMC present, as it indicates a potential issue with the airbag system's deployment control. It is crucial to address this problem promptly to ensure the airbag functions correctly in case of an accident.

6. How can OBDII code B003B GMC be repaired?

Repairing OBDII code B003B GMC may involve replacing the faulty second row right frontal airbag sensor, repairing any damaged wiring or connections in the airbag system, or reprogramming the airbag control module. It is advisable to consult a professional mechanic for an accurate diagnosis and repair.

7. Are there any safety precautions to take when dealing with OBDII code B003B GMC?

When dealing with OBDII code B003B GMC, it is essential to disconnect the vehicle's battery before performing any repairs on the airbag system to prevent accidental deployment. Additionally, following proper safety procedures outlined in the vehicle's repair manual is crucial.

8. How much does it cost to fix OBDII code B003B GMC?

The cost of fixing OBDII code B003B GMC can vary depending on the exact cause of the issue and the labor rates in your area. Replacing a faulty sensor or repairing wiring may cost a few hundred dollars, while replacing the airbag control module can be more expensive.

9. Can OBDII code B003B GMC be reset without repairs?

Resetting OBDII code B003B GMC without addressing the underlying issue is not recommended, as the problem will likely persist and could compromise the airbag system's functionality. It is best to diagnose the issue properly and make the necessary repairs to ensure safety.

10. How can I prevent OBDII code B003B GMC from recurring?

To prevent OBDII code B003B GMC from recurring, it is essential to perform regular maintenance on the vehicle's airbag system, including inspecting sensors, wiring, and connections for any signs of damage. Additionally, addressing any warning lights or unusual symptoms promptly can help prevent future issues.