Fix Cost
$200 - $500
Parts & Labor
Difficulty
4/5
Hard
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System
📖 What Does B0104 Mean?
The airbag system has malfunctioned, preventing the airbags from deploying in the event of a crash. This code is often caused by a faulty airbag sensor or wiring issue.
⚠️
Symptoms
- • Airbag warning light on dashboard
- • airbag system not deploying in a crash
- • unusual sounds or vibrations from the airbag module
🔍
Common Causes
- • Faulty airbag sensor
- • wiring issue
- • blown fuse
- • faulty airbag module
- • faulty seatbelt pretensioner
Fix Guide
🛠️
Possible Solutions
1. Check the airbag sensor and wiring for damage or corrosion. 2. Replace the airbag sensor if damaged. 3. Check the airbag module for any signs of physical damage. 4. Replace the airbag module if damaged. 5. Check the seatbelt pretensioner for any signs of physical damage. 6. Replace the seatbelt pretensioner if damaged.
Required Parts
Tools
Multimeter
Wiring tester
Torx screwdriver
Pliers
👨🔧
Need a Pro?
Complex codes like B0104 can be tricky. Don't risk it if you're unsure.
Quick Stats
Severity
High
DIY Friendly
No
Est. Time
1-2 hours
🔗
Related Diagnostic Codes
Other codes that may appear with B0104
B0100
Same System
B0100: Seat Position Sensor Malfunction
Medium
B0101
Same System
B0101: Body System Code B0101 - Lighting
Medium
B0102
Same System
B0102: Immobilizer System Malfunction
Medium
B0103
Same System
B0103: Audio System Malfunction
Medium
B0105
Same System
B0105: Climate Control Blower Motor Fault
Medium
B0106
Same System
B0106: Door Locks Malfunction
Medium
💡 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