U0186
Lost Communication With Audio Amplifier A
U0186 is an OBD-II diagnostic trouble code meaning: Lost Communication With Audio Amplifier A. Common causes: open or short circuit in the amplifier power supply circuit, damage to the can bus wiring harness. Estimated repair cost: $17–89.
Symptoms
- Audio system doesn't work
- No sound while driving
- Glitches or freezes of the multimedia system
- Error indication on display
- Resetting Audio Settings
Causes
- Open or short circuit in the amplifier power supply circuit
- Damage to the CAN bus wiring harness
- Audio amplifier malfunction
- Corrosion of connectors
- ECU software failure
How to Fix
- Check audio system fuses
- Inspect connectors and wires for damage
- Test the power supply to the audio amplifier
- Carry out CAN bus diagnostics
- Update the multimedia system firmware
Related codes
Error U0186 by Vehicle Brand
FAQ
What does the U0186 code mean?
U0186 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Audio Amplifier A
What causes a U0186 error code?
The most common causes of U0186 include: Open or short circuit in the amplifier power supply circuit; Damage to the CAN bus wiring harness; Audio amplifier malfunction; Corrosion of connectors.
How do I fix a U0186 diagnostic trouble code?
To fix U0186: Check audio system fuses. Inspect connectors and wires for damage. Test the power supply to the audio amplifier. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0186?
Yes, but get it checked soon
How much does it cost to fix U0186?
The estimated repair cost for U0186 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat