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

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