Diagnosis Procedure

1. Perform Self Diagnostic Result for MULTI AV.
2. Erase Self Diagnostic Result. Turn ignition switch OFF.
3. Turn ignition switch ON. Perform Self Diagnostic Result again.

Is DTC U1204 detected?

YES 

Replace AV control unit. Refer to REMOVAL AND INSTALLATION - AV CONTROL UNIT .

NO 

Refer to INTERMITTENT INCIDENT .