Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: No Sound can be Heard from Speakers

PROCEDURE

1.	CHECK AUDIO SETTINGS

(a) In sound output setting mode, set volume, fader and balance to the initial values and check that the sound is normal.

OK:

Audio system returns to normal.

HINT:

Sound quality adjustment measures vary according to the type of amplifier.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Start Function, Gasoline Model): Engine Starter Communication Malfunction (B2779)
DESCRIPTION If the remote engine start ECU does not respond to the certification ECU (smart key ECU assembly) or the remote engine start ID is not registered, this DTC is stored. HINT: Registration status of the remote engine start ECU ID can be checked using the "Wireless C Code" item in the Data L ...

Toyota Avalon (XX50) 2019-2022 Owners Manual