What Does U0222 Mean?
Communication between the body control module and door window motor A module has been lost. This network communication failure prevents proper control and feedback from this specific window motor control module.
Common Causes
35%
Damaged wiring in door jamb from repeated door cycling
25%
Failed window motor control module or integrated circuit
20%
Corroded connector at window motor module or BCM
15%
Window motor module power or ground circuit failure
5%
CAN network wiring short or open circuit
Diagnostic Steps
1
Step 1: Inspect door jamb wiring harness for visible damage, particularly where wires flex during door operation
2
Step 2: Check window motor module connector for corrosion, water intrusion, and secure terminal connections
3
Step 3: Use scan tool to attempt communication with window motor A module and check for active response
4
Step 4: Test power supply and ground circuits at window motor module; verify battery voltage present and ground resistance below 0.2 ohms
5
Step 5: Check CAN bus signal wires for continuity and proper voltage levels (CAN High ~2.5-3.5V, CAN Low ~1.5-2.5V with key on)
Estimated Repair Cost
$200 - $700
Parts + labor, varies by vehicle and location
Communication between the body control module and door window motor A module has been lost. This network communication failure prevents proper control and feedback from this specific window motor control module.
The most common cause of U0222 (Lost Communication With "Door Window Motor A") is: Damaged wiring in door jamb from repeated door cycling
Typical repair costs for U0222 range from $200 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive. One window will not operate, which may affect ventilation and could be a security concern if window is stuck in down position.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0222 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Network
System
Body Control Network / Power Window System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
