U184D
Lost Communication With Radio On Low Speed CAN Bus
U184D is an OBD-II diagnostic trouble code meaning: Lost Communication With Radio On Low Speed CAN Bus. Common causes: audio system (radio) malfunction, open or short circuit in the can bus. Estimated repair cost: ~$278.
Symptoms
- Audio system (radio) does not work
- No sound from speakers
- Steering wheel control buttons do not work
- Glitches or freezing of the multimedia system
- Error message on display
Causes
- Audio system (radio) malfunction
- Open or short circuit in the CAN bus
- Poor contact in connectors
- Audio system power problems
- Incompatible or incorrectly installed non-standard equipment
How to Fix
- Check the power and ground of the audio system
- Inspect the CAN bus connectors and wiring
- Check the integrity of the CAN bus between the radio and other modules
- Try rebooting the audio system (turn off the power for a few minutes)
- If necessary, replace or reflash the audio system
Related codes
FAQ
What does the U184D code mean?
U184D is an OBD-II diagnostic trouble code that indicates: Lost Communication With Radio On Low Speed CAN Bus
What causes a U184D error code?
The most common causes of U184D include: Audio system (radio) malfunction; Open or short circuit in the CAN bus; Poor contact in connectors; Audio system power problems.
How do I fix a U184D diagnostic trouble code?
To fix U184D: Check the power and ground of the audio system. Inspect the CAN bus connectors and wiring. Check the integrity of the CAN bus between the radio and other modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U184D?
Yes, but get it checked soon
How much does it cost to fix U184D?
The estimated repair cost for U184D is ~$278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat