Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Voice Guidance does not Function

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
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When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.

PROCEDURE

1.	CHECK VOICE GUIDANCE SETTING

(a) Check that the voice guidance setting is not off.

OK:

Voice guidance setting is not off.

CHANGE THE VOICE GUIDANCE SETTING TO ON

2.	CHECK AUDIO FUNCTION

(a) Check that sound can be heard from a front speaker.

OK:

Sound can be heard.

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Meter / Gauge System(for Hv Model): Turn Signal/Hazard Flasher Circuit Current Above Threshold (B150819)
DESCRIPTION This DTC is stored when the combination meter assembly detects a short in a turn signal light circuit. HINT: If there is a short in a turn signal light circuit, all of the turn signal lights in that circuit will not blink. DTC No. Detection Item DTC Detection Condition Trouble Area Memor ...

Toyota Avalon (XX50) 2019-2022 Owners Manual