U0184 – Lost Communication With Radio

U0184 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

U0184 Possible Causes

Faulty Audio Unit,Audio Unit harness is open or shorted,Audio Unit circuit poor electrical connection

U0184 Description

The Powertrain Control Module (PCM) monitors the communication to the Audio Unit. The PCM sets the OBDII code when it has lost communication with the Audio Unit.