U0150
NetworkModule Communicationlow severityLost Communication with Audio Amplifier Module
What U0150 Means
Cannot communicate with the audio system amplifier module.
Symptoms
- No sound from speakers
- Audio system not responding
- Radio display works but no output
- Infotainment audio features limited
Common Causes
- Amplifier module failure
- CAN bus or MOST bus wiring
- Module power loss
- Fuse blown
- Fiber optic cable damage
Diagnostic Steps
- Check amplifier fuse
- Test power and ground
- Check data bus wiring
- Inspect fiber optic connections if applicable
- Test amplifier with direct input
Where to start: Check fuses. On vehicles with MOST bus (BMW, Mercedes), check fiber optic connections.
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