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Home >> Lexus >> 2005 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Navigation System - Diagnostics) >> Navigation System >> AVC-LAN Circuit (Radio And Navigation ASSY - Multi-Display Controller Sub-ASSY) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

Each unit of the radio and navigation system connected to the AVC-LAN (communication bus) communicates by transferring the signals from each switch.

When a short to +B or short to ground occurs in this AVC-LAN, the radio and navigation system will not function normally as communication is discontinued.

In the AVC-LAN, the radio and navigation assy becomes the communication master and has enough resistance necessary for communication.

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