📖 What Does B0120 Mean?
Symptoms
- • Airbag warning light on
- • airbag may not deploy in a crash
- • or airbag may deploy unexpectedly.
Common Causes
- • Faulty airbag sensor
- • wiring issue
- • software problem
- • or a faulty airbag module.
Possible Solutions
1. Check the airbag sensor and wiring for damage or corrosion. 2. Update the airbag system software. 3. Replace the airbag module if faulty.
Fixing this on your car?
Get a vehicle-specific repair guide with exact parts, oil specs, and torque settings for your make and model.
🚙 Get Vehicle-Specific Fix Guide
Select your vehicle to see a customized repair guide with exact parts and specifications:
❓ Common Questions About B0120
Can I drive with code B0120?
You can drive for a short time, but should address code B0120 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B0120?
The estimated repair cost for code B0120 is between $500 and $1500. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
Recommended Tools
Need a Pro?
Complex codes like B0120 can be tricky. Don't risk it if you're unsure.
Recommended Tool
Professional OBD2 Scanner
Read & clear codes, view live data, and reset service lights yourself.
View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with B0120
B0118: Body System Security Malfunction
B0119: Audio System Malfunction
B0121: Climate Control Actuator Malfunction
B0122: Door Locks Actuator Fault
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system