What Does U0225 Mean?
The body control module cannot establish or maintain communication with door window motor D on the vehicle network. This indicates a network fault preventing proper control and monitoring of this window motor module.
Common Causes
35%
Harness damage in door jamb area from repeated door opening/closing
25%
Defective window motor D control module
20%
Connector issues including corrosion or loose connection
15%
Power supply interruption or ground circuit failure
5%
CAN bus network wiring short, open, or signal degradation
Diagnostic Steps
1
Step 1: Inspect wiring harness in door hinge/jamb area for cuts, breaks, or excessive wear from door movement
2
Step 2: Disconnect and examine window motor D module connector for corrosion, moisture, bent pins, or poor connection
3
Step 3: Attempt scan tool communication with window motor D module; try module reset or reinitialization if available
4
Step 4: Verify electrical power at motor module connector: check for battery voltage and solid ground connection (less than 0.2V)
5
Step 5: Test CAN bus network integrity by measuring resistance across CAN High and CAN Low (should read 60-120 ohms with modules connected)
Estimated Repair Cost
$200 - $700
Parts + labor, varies by vehicle and location
The body control module cannot establish or maintain communication with door window motor D on the vehicle network. This indicates a network fault preventing proper control and monitoring of this window motor module.
The most common cause of U0225 (Lost Communication With "Door Window Motor D") is: Harness damage in door jamb area from repeated door opening/closing
Typical repair costs for U0225 range from $200 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No immediate safety concern for driving. Inoperative window may create security vulnerability or weather protection issues depending on window position.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0225 to identify the root cause.
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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.
