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 U1601, U1603, U1609 or U160B detected?

YES 

Refer to DIAGNOSIS PROCEDURE  (front door speaker) or DIAGNOSIS PROCEDURE  (front tweeter).

NO 

Refer to INTERMITTENT INCIDENT .