Error code
OBD2 U0186
OBD2U0186
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With Audio Amplifier.
Severity
moderateCan drive but may experience audio system failures.
Summary
U0186 indicates lost communication between the car's main computer and the audio amplifier, which is part of the data bus system.
Common Causes
- Faulty audio amplifier
- Data bus connector issues
Fixes
FAQ
How can I fix U0186?
Check the connection between the audio amplifier and data bus, or replace a faulty audio amplifier.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
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- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'