Toyota 4Runner: Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Navigation / Multi Info Display / Navigation System / Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

DESCRIPTION

The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the navigation receiver assembly via this circuit.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

(a) Disconnect the G40 navigation receiver assembly connector.

(b) Disconnect the G53 No. 1 stereo jack adapter assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G40-2 (US1-) - G53-2 (UDO-)	Always	Below 1 Ω
G40-3 (US1+) - G53-3 (UDO+)	Always	Below 1 Ω
G40-5 (USG1) - G53-5 (UJSS)	Always	Below 1 Ω
G40-2 (US1-) - Body ground	Always	10 kΩ or higher
G40-3 (US1+) - Body ground	Always	10 kΩ or higher
G40-5 (USG1) - Body ground	Always	10 kΩ or higher

Text in Illustration

Front view of wire harness connector

(to Navigation Receiver Assembly)

Front view of wire harness connector

(to No. 1 Stereo Jack Adapter Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the navigation receiver assembly via this circuit. The sound signal that has been sent is ampli ...

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DESCRIPTION This circuit sends a signal to the stereo component amplifier assembly to mute noise. Because of that, the noise produced by changing the sound source ceases. If there is an open in th ...

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