You are offline — AutoTools still works from your device.

Code

U0184

Network

Lost communication with radio / head unit

Communication with the radio module is lost.

Search another code

Most likely causes

Head unit fault
CAN wiring fault
Blown radio fuse

Symptoms you may notice

Radio/screen dead
Audio system faults

Checks to run

Check the head unit fuse
Test CAN wiring
Scan the head unit

Tools you may need

Multimeter

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Network

Lost communication with engine control module

Lost communication with ABS control module

Lost communication with transmission control module

High-speed CAN communication bus

Control module communication bus off

Ask the AI mechanic

Hi! Ask me anything about your car — codes, noises, parts, maintenance.