Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Audio / Video / Audio And Visual System(for Hv Model) / Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier

DESCRIPTION

This circuit is used when the voice switch of the steering pad switch assembly is pushed.

Using this circuit, the radio and display receiver assembly sends signals to the stereo component amplifier assembly.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)

(a) Disconnect the G14 radio and display receiver assembly connector.

(b) Disconnect the G8 stereo component amplifier assembly connector.

Standard Resistance:

Tester connection	Condition	Specified condition
G14-3 (RL+) - G8-15 (II1+)	Always	Below 1 Ω
G14-8 (RL-) - G8-14 (II1-)	Always	Below 1 Ω
G8-18 (SLD1) - Body ground	Always	10 kΩ or higher
G14-3 (RL+) or G8-15 (II1+) - Body ground	Always	10 kΩ or higher
G14-8 (RL-) or G8-14 (II1-) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter

Voice Guidance does not Function

See More:

Toyota Avalon (XX50) 2019-2022 Owners Manual > Do-it-yourself maintenance: Tires
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