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Home >> Lexus >> 2006 >> GS 430 V8-4.3L (3UZ-FE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Component Tests and General Diagnostics >> AVC-LAN Circuit Between Navigation ECU and Multi-Display
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AVC-LAN Circuit Between Navigation ECU and Multi-Display

AVC-LAN Circuit between Navigation ECU and Multi-Display

DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication bus) communicates by transferring the signals from each switch.
When +B and GND shorts occur in this AVC-LAN, the navigation system will not function normally as communication is discontinued.
In the AVC-LAN, the multi-display becomes the communication master, and the radio receiver assembly has enough resistance necessary for transmitting the communication.

Wiring Diagram:






Step 1:




INSPECTION PROCEDURE
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