Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System
📖 What Does B0123 Mean?
The B0123 code indicates a problem with the window regulator motor, which controls the movement of the window glass. This code is often caused by a faulty motor, wiring issue, or faulty regulator mechanism.
⚠️
Symptoms
- • Window fails to move
- • stuck in open or closed position
- • unusual noise while moving
🔍
Common Causes
- • Faulty window regulator motor
- • wiring issue
- • faulty regulator mechanism
- • worn-out or damaged window tracks
Fix Guide
🛠️
Possible Solutions
1. Disconnect battery to prevent electrical shock. 2. Remove door panel and window regulator assembly. 3. Inspect and clean window tracks. 4. Replace faulty window regulator motor or regulator mechanism. 5. Reassemble and test window operation.
Required Parts
Tools
Socket set
Torx screwdriver
Pliers
👨🔧
Need a Pro?
Complex codes like B0123 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 B0123
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