AutoCodesGMC – B0030 GMC

B0030 GMC Code - Second Row Left Side Airbag 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 Left Side Airbag, Second Row Left Side Airbag harness is open or shorted, Second Row Left Side Airbag 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
B0030 GMC indicates Second Row Left Side Airbag Deployment Control.
Common causes
Common causes include Faulty Second Row Left Side Airbag, Second Row Left Side Airbag harness is open or shorted, Second Row Left Side Airbag 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 2,851
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code B0030 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 B0030 GMC - Second Row Left Side Airbag Deployment Control - AutoCodes.com
B0030 GMC Code - Second Row Left Side Airbag Deployment Control

What are the Possible Causes of the DTC B0030 GMC?

  • Faulty Second Row Left Side Airbag
  • Second Row Left Side Airbag harness is open or shorted
  • Second Row Left Side Airbag circuit poor electrical connection
  • Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0030 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 B0030 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 B0030 GMC code?

Need more information on how to fix the B0030 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0030 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 B0030 GMC Code

1. What are the common symptoms of OBDII code B0030 GMC?

The most common symptoms include the airbag warning light illuminating on the dashboard and a potential message indicating an issue with the second row left side airbag deployment control.

2. What could cause OBDII code B0030 GMC to trigger?

This code is typically triggered by a malfunction in the second row left side airbag deployment control module, which could be due to wiring issues, a faulty sensor, or a problem with the airbag itself.

3. How can I diagnose the cause of OBDII code B0030 GMC?

Diagnosing this code usually involves using a professional OBDII scanner to retrieve the specific fault codes associated with the second row left side airbag deployment control system. Additionally, a thorough inspection of the wiring and components involved may be necessary.

4. What are some repair tips for addressing OBDII code B0030 GMC?

Repairing this code often involves checking and repairing any damaged wiring, replacing faulty sensors or components, and ensuring proper connections are made within the second row left side airbag deployment control system.

5. Is it safe to drive with OBDII code B0030 GMC present?

It is not recommended to drive with this code present, as it indicates a potential issue with the airbag deployment control system, which could affect the functionality of the airbag in the event of a collision.

6. Can I reset OBDII code B0030 GMC without fixing the underlying issue?

While you may be able to clear the code temporarily, it will likely reappear until the root cause of the problem is addressed and resolved.

7. How much does it typically cost to repair OBDII code B0030 GMC?

The cost of repairing this code can vary depending on the specific cause of the issue, but it may involve expenses related to parts replacement, labor, and diagnostic fees.

8. Can I fix OBDII code B0030 GMC myself, or do I need to take it to a professional mechanic?

Repairing this code may require specialized knowledge and tools, so it is recommended to consult with a professional mechanic or technician to properly diagnose and fix the issue.

9. Are there any recalls or technical service bulletins related to OBDII code B0030 GMC?

It's advisable to check with the manufacturer or your local dealership to inquire about any recalls or technical service bulletins related to this specific OBDII code for your GMC vehicle.

10. How can I prevent OBDII code B0030 GMC from occurring in the future?

Regular maintenance and inspections of your vehicle's airbag system, including the second row left side airbag deployment control module, can help prevent issues that may trigger this OBDII code.

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