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

Mute Signal Circuit between Radio Receiver and Television Display Assembly
DESCRIPTION The radio receiver controls the volume according to the MUTE signal from the television display assembly. The MUTE signal is sent to reduce noise and a popping sound generated when ...

Vehicle Speed Signal Circuit between Multi-display and Combination Meter
DESCRIPTION This circuit is necessary for the ASL (Auto Sound Leveliser) built into the radio receiver. Speed signals are received from the combination meter and used for the ASL. The ASL fun ...

Other materials:

Removal
1. REMOVE NO. 1 REAR SEAT OUTER BELT ASSEMBLY (for 8-Passenger) HINT: Refer to the instructions for disassembly of the rear No .1 seat assembly (for center seat).  Remove the rear seatback board.  Remove the rear seat shoulder belt cover.  Remove the 2 bolts, 2 nuts and N ...

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
DESCRIPTION This circuit is necessary for the ASL (Auto Sound Leveliser) built into the stereo component amplifier. Speed signals are received from the combination meter and used for the ASL. The ASL function automatically adjusts the sound data in order to enable hearing the clear audio ...

Problem symptoms table
POWER SLIDE DOOR SYSTEM Symptom Suspected Area Power slide door LH does not operate when switch* is pressed (* switch indicates satellite switch for power slide door LH and power slide door control switch LH) ECU-B fuse Power slide door main switch ...

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