CAUTION / NOTICE / HINT NOTICE:
HINT: Even if the portable player can play audio content, it may not be able to play via the in-vehicle device. This does not necessarily indicate a malfunction of the in-vehicle device. PROCEDURE
(a) Check if the portable player operates normally. OK: The portable player operates normally.
(a) 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.
(a) Check if the "Bluetooth" audio player plays normally on another "Bluetooth" audio compatible vehicle of the same model. OK: "Bluetooth" audio player plays normally.
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Toyota Avalon Service & Repair Manual > Audio And Visual System(for Gasoline Model): Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION The stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio and display receiver assembly via this circuit. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO JACK ADAPTER ASSEMBLY) (a ...