Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System
📖 What Does B0122 Mean?
The B0122 code indicates a fault in the door lock actuator circuit, which prevents the door locks from functioning properly.
⚠️
Symptoms
- • Door locks do not function
- • may be stuck or jammed
- • or may not respond to key fob or door switch commands.
🔍
Common Causes
- • Faulty door lock actuator
- • wiring issue
- • or a problem with the body control module.
Fix Guide
🛠️
Possible Solutions
1. Disconnect the battery to reset the system. 2. Check and repair or replace the door lock actuator. 3. Inspect and repair or replace any damaged wiring. 4. Update the body control module if necessary.
Required Parts
Tools
Multimeter
Wire tester
Torx screwdriver
👨🔧
Need a Pro?
Complex codes like B0122 can be tricky. Don't risk it if you're unsure.
Quick Stats
Severity
Medium
DIY Friendly
No
Est. Time
1-2 hours
🔗
Related Diagnostic Codes
Other codes that may appear with B0122
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
B0104
Same System
B0104: Airbag System Malfunction
High
B0105
Same System
B0105: Climate Control Blower Motor Fault
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