B1930 - Understanding DTC B1930: Common Issues in Honda and Acura Vehicles

Quick Answer

B1930 means: B1930 indicates a malfunction related to the airbag system, particularly the passenger airbag.

Fix: Check and replace faulty components Cost: $400 - $700 Time: 90-180 minutes

Can I drive with B1930? Immediate action is advised to diagnose and repair to ensure passenger safety.

Common Questions

What does B1930 mean and how does it affect my car?

The B1930 code indicates a problem with the airbag system, specifically regarding the passenger airbag. If this code is present, it means the airbag may not deploy in an accident, greatly increasing the risk of injury. It's crucial to address this issue immediately.

What are the most common causes of B1930 and how much does it cost to fix?

Common causes include a faulty airbag control module, damaged wiring, or issues with the occupant detection system. Repair costs can vary, typically ranging from $100 to $700 depending on the specific issue requiring attention.

Can I drive my car with B1930 or should I stop immediately?

It is highly advised not to drive the vehicle until the issue is resolved. The B1930 code indicates a malfunction in the airbag system, which can prevent proper airbag deployment during an accident.

How can I diagnose B1930 myself using GeekOBD APP?

By connecting the GeekOBD APP to your vehicle's OBD2 port, you can perform a diagnostic scan to retrieve codes and view freeze-frame data, which provides context for the B1930 issue.

What vehicles are most commonly affected by B1930?

Commonly affected vehicles include the 2001-2005 Honda Civic and the 2003-2008 Acura MDX, among others. These models often experience airbag system faults that trigger the B1930 code.

How can I prevent B1930 from happening again?

Regularly inspect and maintain the vehicle's electrical connections and wiring, especially those related to the airbag system. Ensuring that any recalls or technical service bulletins are addressed can also help prevent this issue.

What is B1930?

The diagnostic trouble code B1930 typically refers to an issue related to the airbag system, particularly the passenger airbag. In vehicles such as the 2001-2005 Honda Civic and 2003-2008 Acura MDX, this code indicates a malfunction within the airbag control unit or a related component. The B1930 code often signifies that the system has detected an open circuit or a short circuit in the airbag deployment mechanism. This problem can prevent the airbags from deploying in the event of a collision, posing a significant safety risk. Moreover, when this code is triggered, it will usually cause the airbag warning light on the dashboard to illuminate, which is a clear indication that the driver should take immediate action to diagnose and resolve the issue. Addressing a B1930 code is crucial not just for compliance with safety regulations but also for ensuring the safety of all vehicle occupants. Ignoring this code may lead to severe consequences in the event of an accident, as it could result in the airbags failing to deploy, increasing the risk of injury. Therefore, it is essential for vehicle owners experiencing this code to seek professional assistance promptly.

System: B - Body (Airbags, Lighting, Security, Climate Control)

Symptoms

Common symptoms when B1930 is present:

  • The airbag warning light on the dashboard remains illuminated, indicating a fault in the airbag system.
  • You may notice that the passenger airbag does not activate during a crash test or when deploying during a simulated event.
  • In some cases, drivers report odd behaviors such as intermittent warnings or alerts from the vehicle's onboard systems, indicating issues with the airbag.

Possible Causes

Most common causes of B1930 (ordered by frequency):

  1. The most common cause of B1930 is a faulty airbag control module, which has a likelihood of around 50%. This component is responsible for monitoring the airbag system's readiness and functionality.
  2. Another potential cause is damaged wiring or connectors that have become corroded or loose, which can disrupt the circuit needed for proper airbag operation.
  3. A less common but serious cause could be a malfunctioning occupant detection system, which can prevent the airbag from deploying correctly. Regular maintenance checks can help prevent this.
  4. In rare instances, software issues within the airbag control module can trigger this code, indicating the need for a software update or reprogramming.

B1930 Repair Costs

Cost Breakdown by Repair Type

Airbag Control Module Replacement

Replacing the faulty airbag control module to restore proper functionality.

  • Total: $400 - $700
  • Success rate: 85%
Wiring and Connector Repair

Repairing or replacing damaged wiring and connectors related to the airbag system.

  • Total: $100 - $300
  • Success rate: 75%
Money-Saving Tips for B1930
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional B1930 Diagnosis Process

Follow these systematic steps to accurately diagnose B1930. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Conduct an initial visual inspection for any visible damage to wiring or connectors related to the airbag system (5-10 minutes)
GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Use a diagnostic tool like the GeekOBD APP to perform an OBD2 scan to retrieve the B1930 code and any related codes (10-15 minutes)
GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Test the airbag control module and associated circuits using a multimeter to check for continuity and proper voltage (20-30 minutes)
GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Conduct a system function test to verify the airbag system's operation after repairs and clear any diagnostic codes (10-15 minutes)
GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Perform a road test under various conditions to ensure the airbag system is functioning properly post-repair (15-20 minutes)
GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Airbag Control Module Replacement in 2004 Honda Civic

Vehicle: 2004 Honda Civic, 120,000 miles

Problem: Customer reported the airbag warning light was on.

Diagnosis: Diagnostic scan revealed B1930 code. Inspection indicated a faulty airbag control module.

Solution: Replaced the airbag control module, cleared codes, and performed system functionality tests.

Cost: $600 (parts: $450, labor: $150)

Result: Airbag system functioned correctly post-repair, and the warning light was cleared.

Case Study 2: Wiring Repair in 2006 Acura MDX

Vehicle: 2006 Acura MDX, 85,000 miles

Problem: Customer experienced intermittent airbag warning light.

Diagnosis: B1930 code was present. Inspection showed corrosion in wiring connectors.

Solution: Cleaned and repaired connectors, tested continuity.

Cost: $200 (parts: $50, labor: $150)

Result: The airbag system was restored to full functionality with no further issues.

Diagnose B1930

Use GeekOBD APP for professional diagnosis!

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  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: B1930
System: Body (Airbags, Lighting, Security, Climate Control)
Severity: HIGH
Category: Body Codes