B0902 - Understanding DTC B0902: Common Issues in 2015-2018 Honda Accord and Toyota Camry

Quick Answer

B0902 means: B0902 indicates an issue with the side airbag system, potentially affecting vehicle safety.

Fix: Check and replace faulty components Cost: $200 - $400 Time: 90-180 minutes

Can I drive with B0902? Immediate attention is recommended to ensure passenger safety.

Common Questions

What does B0902 mean and how does it affect my car?

The B0902 code signifies a malfunction in the side airbag system, which could prevent the airbag from deploying during a crash. This can lead to serious safety issues, especially during side-impact collisions.

What are the most common causes of B0902 and how much does it cost to fix?

Common causes include faulty airbag sensors, damaged wiring, and control module failures. Repair costs can range from $100 for wiring repairs to over $800 for control module replacements, depending on the severity and parts needed.

Can I drive my car with B0902 or should I stop immediately?

While you can technically drive with the B0902 code, it is highly discouraged as it indicates a serious safety risk. It is best to address the issue promptly to ensure your airbag system functions correctly.

How can I diagnose B0902 myself using GeekOBD APP?

Using the GeekOBD APP, you can perform an OBD2 scan to retrieve the B0902 code and any related codes. This will help you identify if there are additional issues. You can also view freeze-frame data that provides context for the code.

What vehicles are most commonly affected by B0902?

Vehicles such as the 2015-2018 Honda Accord and Toyota Camry frequently experience the B0902 code due to their airbag system configurations. Always check for any recalls related to airbag issues.

How can I prevent B0902 from happening again?

To prevent the B0902 code from reoccurring, ensure regular vehicle maintenance includes inspections of the airbag system. Avoid physical damage to wiring during routine repairs and keep the vehicle dry to prevent corrosion.

What is B0902?

DTC B0902 is a diagnostic trouble code that indicates a problem with the vehicle's airbag system, specifically related to the side airbag or seatbelt tensioner. This code typically arises when the airbag control module detects a malfunction in the side impact sensors or the wiring related to the side airbag deployment. For car owners, this can mean that if an accident occurs, the side airbags might not deploy, significantly increasing the risk of injury. The airbag system is crucial for passenger safety, and the appearance of this code should be taken seriously. Typically, this issue manifests in vehicles such as the 2015-2018 Honda Accord and the 2015-2018 Toyota Camry, among others. Drivers may notice the airbag warning light illuminated on the dashboard, which serves as an important warning that the vehicle's safety systems are compromised. Ignoring this warning can lead to dangerous situations, especially if the airbag fails to deploy during a collision. Therefore, understanding and addressing the B0902 code promptly is essential for ensuring your vehicle is safe to drive.

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

Symptoms

Common symptoms when B0902 is present:

  • The airbag warning light stays illuminated on the dashboard, indicating a fault in the airbag system.
  • You may feel a lack of resistance in the seatbelt tensioner during sudden stops, suggesting a malfunction.
  • Drivers might notice unusual behaviors such as the seatbelt not retracting properly, which can be a sign of an underlying issue.
  • In some cases, the vehicle's safety features may become inactive, leading to concerns about overall safety.
  • Some drivers report hearing unusual clicking sounds from the airbag module area, indicating potential electrical issues.

Possible Causes

Most common causes of B0902 (ordered by frequency):

  1. The most common cause of B0902 is a faulty side airbag sensor, which can occur in about 60% of cases. This often results from wear and tear or exposure to moisture.
  2. Another common cause is damaged wiring or connectors related to the side airbag system, accounting for around 20% of occurrences. Corrosion or physical damage can disrupt the signal.
  3. Poor maintenance practices, such as not regularly checking the airbag system, can lead to malfunctions. This underscores the importance of routine inspections every 30,000 miles.
  4. Less common, but serious, is a failure in the airbag control module itself, which can prevent all airbag deployment and may require replacement.
  5. Rarely, a software glitch in the vehicle's diagnostic system may trigger a false B0902 code, necessitating a reprogramming of the control module.

B0902 Repair Costs

Cost Breakdown by Repair Type

Airbag Sensor Replacement

Replacing the faulty side airbag sensor is a common and effective solution for resolving DTC B0902.

  • Total: $200 - $400
  • Success rate: 85%
Wiring Repair

Repairing damaged wiring or connectors related to the airbag system can resolve the issue and restore functionality.

  • Total: $100 - $250
  • Success rate: 75%
Control Module Replacement

In rare cases, replacing the airbag control module may be necessary if other repairs do not solve the issue.

  • Total: $400 - $800
  • Success rate: 90%
Money-Saving Tips for B0902
  • 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 B0902 Diagnosis Process

Follow these systematic steps to accurately diagnose B0902. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion around the airbag sensor (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion around the airbag sensor (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: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze-frame data to understand the fault context

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze-frame data to understand the fault context. This is essential for diagnosing the issue accurately (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: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the resistance of the side airbag sensors

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the resistance of the side airbag sensors. Confirm they are within manufacturer specifications (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: Step 4: System function test - After repairs, verify the proper operation of the airbag system and clear codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - After repairs, verify the proper operation of the airbag system and clear codes using the GeekOBD APP (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: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and that no warning lights reappear (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and that no warning lights reappear (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: Honda Accord Airbag Sensor Replacement

Vehicle: 2016 Honda Accord, 60,000 miles

Problem: Customer reported the airbag warning light was illuminated.

Diagnosis: After scanning with GeekOBD APP, the B0902 code was confirmed. Visual inspection revealed a damaged side airbag sensor.

Solution: Replaced the faulty side airbag sensor and cleared the codes.

Cost: $300 (parts: $200, labor: $100)

Result: The airbag system was restored to full functionality, and the warning light was cleared.

Case Study 2: Toyota Camry Wiring Repair

Vehicle: 2017 Toyota Camry, 45,000 miles

Problem: Customer noticed the airbag light was on, and seatbelt tension was weak.

Diagnosis: GeekOBD APP indicated B0902, and a thorough inspection revealed frayed wiring in the seatbelt tensioner.

Solution: Repaired the damaged wiring and tested the seatbelt function.

Cost: $150 (parts: $50, labor: $100)

Result: The repair was successful, and the airbag system was verified to be functioning correctly.

Diagnose B0902

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
Download GeekOBD APP Get MOBD Adapter

Code Information

Code: B0902
System: Body (Airbags, Lighting, Security, Climate Control)
Severity: HIGH
Category: Body Codes