Lost Communication With Audio/Entertainment Control Module A
What does U0184 mean?
The U0184 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Audio/Entertainment Control Module A. This is a low severity code.
Common Symptoms
- Audio system completely inoperative
- No sound from any speakers
- Radio display blank or frozen
- Steering wheel audio controls not working
- Bluetooth audio streaming unavailable
Probable Causes (Ranked by Likelihood)
- Failed audio amplifier or head unit Very High
- Damaged wiring to audio module High
- Software glitch in infotainment system Moderate
- Blown audio system fuse Low
Step-by-Step Diagnostic Procedure
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Check the audio and entertainment system fuses
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Try a hard reset by disconnecting the battery for 10 minutes
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Inspect wiring to the audio amplifier (often in the trunk or under a seat)
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Verify power and ground at the audio module connector
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Scan for related infotainment codes
Frequently Asked Questions
Can I drive with code U0184?
Yes, completely safe to drive. Only the audio and entertainment system is affected. No driving or safety systems are impacted.
What causes U0184?
Most often a failed audio amplifier or head unit. A software glitch can sometimes be resolved by disconnecting the battery for a reset.
Is U0184 expensive to fix?
Costs range from $100 for a fuse fix or reset to $600 for amplifier or head unit replacement. Try a battery disconnect reset before spending money.