U0216
NetworkModule Communicationmoderate severityLost Communication With Door Control Module C
What U0216 Means
The network lost communication with door control module C. Rear door window, lock, and related controls may not respond.
Symptoms
- Rear window inoperative
- Door lock not working
- Warning message on dash
Common Causes
- Faulty door control module C
- Broken wire in door boot
- Loose or corroded connector
- Fuse failure
Diagnostic Steps
- Retrieve fault codes
- Check power and ground at module
- Inspect door harness
- Test CAN communication
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