B0920 - DTC B0920 - Airbag Sensor Fault - Common in 2012-2016 Toyota Camry and Honda Accord

Quick Answer

B0920 means: B0920 indicates a fault in the airbag sensor circuit, affecting airbag deployment.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with B0920? Immediate attention is needed to ensure airbag functionality.

Common Questions

What does B0920 mean and how does it affect my car?

B0920 indicates a fault in the airbag sensor circuit. This means your vehicle's airbag may not deploy correctly during a collision, greatly compromising your safety. It's crucial to address this issue immediately.

What are the most common causes of B0920 and how much does it cost to fix?

The most common cause of B0920 is a faulty airbag sensor, which has a repair cost ranging from $150 to $300. Other causes include damaged wiring and faulty control modules, which can increase costs significantly.

Can I drive my car with B0920 or should I stop immediately?

It's advisable to stop driving your car if you encounter the B0920 code. The airbag system may not function properly, putting you at risk during an accident.

How can I diagnose B0920 myself using GeekOBD APP?

Using the GeekOBD APP, you can perform an OBD2 scan to retrieve diagnostic codes like B0920. It will also provide freeze frame data that shows the conditions when the code was set, helping narrow down the problem.

What vehicles are most commonly affected by B0920?

B0920 is commonly seen in vehicles like the 2012-2016 Toyota Camry and the 2013-2015 Honda Accord. Always check for any recalls or technical service bulletins (TSBs) related to airbag systems.

How can I prevent B0920 from happening again?

Regularly inspect your vehicle's wiring and connectors, especially if you live in areas with extreme weather. Additionally, ensure that your vehicle undergoes routine maintenance checks, particularly after accidents.

What is B0920?

The B0920 diagnostic trouble code (DTC) indicates a problem with the airbag system, specifically related to the driver-side airbag sensor. This code is triggered when the vehicle's onboard diagnostic system detects an issue with the airbag sensor circuit, which can prevent the airbag from deploying in the event of an accident. For car owners, this is a critical concern as it directly affects the safety features of the vehicle. The airbag sensor is designed to monitor the status of the airbag system, ensuring proper function. If this code is present, it may result in the airbag warning light illuminating on the dashboard, indicating that there is a fault in the system. Ignoring this issue can lead to serious safety risks, as the airbag may not deploy properly during a collision. Common symptoms include the airbag warning light being on, possible seatbelt tensioner issues, and in some cases, a noticeable electrical malfunction. It's essential for drivers to address this code promptly to ensure their safety and the safety of passengers. Regular diagnostic checks, especially after an accident or during routine maintenance, can help catch issues before they escalate.

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

Symptoms

Common symptoms when B0920 is present:

The airbag warning light remains illuminated on the dashboard, indicating a system fault.
In some instances, there may be erratic behavior in the seatbelt tensioners, which may not lock during an accident.
Drivers may experience electrical issues, such as unexpected resets of the vehicle's electronic systems.
The vehicle may exhibit warning messages related to the airbag system on the display panel.
In rare cases, drivers might notice increased resistance when pressing the airbag switch.

Possible Causes

Most common causes of B0920 (ordered by frequency):

{'cause': 'Faulty airbag sensor - 60% likelihood. This is often due to wear and tear or damage from collisions.', 'details': 'Airbag sensors can fail over time, especially in older vehicles or those that have been involved in minor accidents.'}
{'cause': 'Damaged wiring or connectors - 25% likelihood. Corrosion or fraying of wiring can interrupt the signal.', 'details': 'Inspecting the wiring harness for any signs of wear can prevent future issues.'}
{'cause': 'Faulty airbag control module - 10% likelihood. This component manages the airbag deployment.', 'details': 'Replacement of the airbag control module can be complex and may require professional assistance.'}
{'cause': "Software glitches or updates - 3% likelihood. Occasionally, the vehicle's software may need updating.", 'details': 'Using a diagnostic tool to check for software updates can resolve some issues.'}
{'cause': "Rarely, a malfunction in the vehicle's main computer - 2% likelihood.", 'details': 'This is a serious problem and may require extensive diagnostics.'}

B0920 Repair Costs

Cost Breakdown by Repair Type

Airbag Sensor Replacement

Replacing the faulty airbag sensor that triggered the B0920 code.

Total: $150 - $300
Success rate: 90%

Wiring Repair

Repairing damaged wiring or connectors that may be causing the sensor fault.

Total: $100 - $250
Success rate: 85%

Airbag Control Module Replacement

Replacing the control module if it is found to be faulty.

Total: $400 - $700
Success rate: 80%

Money-Saving Tips for B0920

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 B0920 Diagnosis Process

Follow these systematic steps to accurately diagnose B0920. 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 (5-10 minutes)

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