Toyota RAV4 manuals

Toyota Sienna Service Manual: AVC-LAN Circuit

DESCRIPTION

Each unit of the audio system connected to the AVC-LAN (communication bus) transfers the signal of each switch by communication.

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

INSPECTION PROCEDURE

1 INSPECT RADIO RECEIVER

 INSPECT RADIO RECEIVER

  1. Disconnect the radio receiver connectors.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

*1: 10 Speaker System

2 CHECK HARNESS AND CONNECTOR

HINT: For details of the connectors, refer to the "TERMINALS OF ECU"

  1. Referring to the AVC-LAN wiring diagram below, check all AVC-LAN circuits.
  1. Disconnect all connectors in all AVC-LAN circuits.
  2.  Check for an open or short in all AVC-LAN circuits.

OK: There is no open or short circuit

CHECK HARNESS AND CONNECTOR

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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