Audio And Visual System (W/O Navigation System) Avc-Lan Circuit

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Audio Video. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

INSPECT RADIO RECEIVER ASSEMBLY

CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)

INSPECT MALFUNCTIONING PARTS

AUDIO AND VISUAL SYSTEM (w/o Navigation System) - AVC-LAN Circuit


DESCRIPTION

Each audio system component connected to the AVC-LAN (communication bus) transfers the switch signals by the audio visual communication local area network.
If a short to +B or short to ground occurs in this AVC-LAN, the audio system will not function normally as communication is stopped.

INSPECTION PROCEDURE

1.INSPECT RADIO RECEIVER ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type).Audio And Visual System (W/O Navigation System) Avc-Lan Circuit

  1. Disconnect the F1 and F55 radio receiver assembly connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F1-5 (ATX+) - F1-15 (ATX-)
    		Always
    		60 to 80 Ω
    F55-9 (TXM+) - F55-10 (TXM-)
    		Always
    		60 to 80 Ω
    Text in Illustration
    *1
    		Component without harness connected
    (Radio Receiver Assembly)
    *2
    		Component without harness connected
    (Radio Receiver Assembly)


NG
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
OK


2.CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
HINT:
For details of the connectors, refer to Terminals of ECU (Click here).


  1. Referring to the following AVC-LAN wiring diagram, 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.

      Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type).Audio And Visual System (W/O Navigation System) Avc-Lan Circuit



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT MALFUNCTIONING PARTS

  1. Disconnect and reconnect each slave unit one by one until the master unit returns to normal operation.

    HINT:
    1. Check all slave units.
    2. When disconnecting a slave unit causes the master unit to return to normal operation, this indicates that the slave unit is malfunctioning. Replace the malfunctioning slave unit.
    OK:
    Master unit returns to normal operation.


NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)
OK

REPLACE MALFUNCTIONING PARTS