Component Tests and General Diagnostics

CIRCUIT DESCRIPTION

AVC-LAN:

Each unit of the LEXUS navigation system connected with AVC-LAN (communication bus) transmits a signal of each switch.

When (+)B short or GND short occurs in this AVC-LAN, the LEXUS navigation system will not function normally as the communication is discontinued.

In this AVC-LAN, the radio and player becomes the master of the communication, having a resistance necessary for transmitting the signals.

Wiring Diagram:

Step 1 - 3:

Step 3 (Continued) - 6:

Step 6 (Continued ) - 8:

INSPECTION PROCEDURE