What Does U0228 Mean?
The control network has lost communication with Door Window Motor G module. This prevents the system from controlling or monitoring the status of this specific window motor.
Common Causes
35%
Failed window motor G module or internal electronics
30%
Damaged wiring or connector problems at motor G location
20%
Ground circuit failure or high resistance in ground path
10%
Blown fuse or open power circuit to window motor module
5%
Communication bus issue or BCM malfunction
Diagnostic Steps
1
Step 1: Verify power supply and fuse condition for window motor G circuit
2
Step 2: Perform visual inspection of wiring harness for damage, especially in door jamb area
3
Step 3: Test ground circuit resistance (should be less than 1 ohm to chassis ground)
4
Step 4: Use scan tool to check communication status of all window modules to isolate bus problem
5
Step 5: Test window motor G module operation by swapping with identical module from different location
Estimated Repair Cost
$150 - $600
Parts + labor, varies by vehicle and location
The control network has lost communication with Door Window Motor G module. This prevents the system from controlling or monitoring the status of this specific window motor.
The most common cause of U0228 (Lost Communication With "Door Window Motor G") is: Failed window motor G module or internal electronics
Typical repair costs for U0228 range from $150 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Low safety risk in most cases. Primary concern is if window cannot close, affecting security and weather protection.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0228 to identify the root cause.
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Quick Info
Category
Network
System
Body Control and Convenience
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
