Toyota Avalon 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 Service & Repair Manual > Pre-collision System(for Hv Model): Other System Malfunction (C1A63)
DESCRIPTION If the hybrid vehicle control ECU detects a malfunction in the hybrid control system, it outputs a malfunction signal to the driving support ECU assembly via CAN communication and this DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A63 Other System Malfuncti ...

Toyota Avalon Owners Manual