U0184
NetworkModule Communicationlow severityLost Communication with Radio Module
What U0184 Means
Cannot communicate with the radio or entertainment system head unit.
Symptoms
- Radio display blank
- No audio
- Infotainment system offline
- Touchscreen not responding
- Backup camera display not available
Common Causes
- Radio module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Software crash
Diagnostic Steps
- Check radio fuse
- Test power and ground
- Check CAN wiring
- Try radio reset procedure
- Check for software update availability
Where to start: Check fuses. Many head units can be reset by pulling the fuse for 30 seconds.
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