Audio And Visual System (For Radio And Display Type) Avc-Lan Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)

INSPECT MALFUNCTIONING PARTS

AUDIO AND VISUAL SYSTEM (for Radio and Display Type) - AVC-LAN Circuit


DESCRIPTION

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

WIRING DIAGRAM


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


INSPECTION PROCEDURE

HINT:
  1. The radio and display receiver assembly is the master unit.
  2. When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).
1.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


  1. Remove the radio and display receiver assembly (Click here).


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


    Text in Illustration
    *A
    		w/ Side Monitor System
    		-
    		-
    *a
    		Component without harness connected
    (Radio and Display Receiver Assembly)
    		-
    		-

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    7 (TX1+) - 8 (TX1-)
    		Always
    		60 to 80 Ω
    7 (TX3+) - 8 (TX3-)*
    		Always
    		60 to 80 Ω
    1. *: w/ Side Monitor System


NG
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (Click here)
OK


2.CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
  1. *: w/ Side Monitor System

  1. Disconnect the F118 and F124 radio and display receiver assembly connectors.

  1. Disconnect the F18 stereo component amplifier assembly connector.

  1. Disconnect the F75 parking assist ECU connector*.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F118-7 (TX3+) - F75-11 (TX+)*
    		Always
    		Below 1 Ω
    F118-8 (TX3-) - F75-10 (TX-)*
    		Always
    		Below 1 Ω
    F124-7 (TX1+) - F18-8 (TX+)
    		Always
    		Below 1 Ω
    F124-8 (TX1-) - F18-7 (TX-)
    		Always
    		Below 1 Ω
    F118-7 (TX3+) - Body ground*
    		Always
    		10 kΩ or higher
    F118-8 (TX3-) - Body ground*
    		Always
    		10 kΩ or higher
    F124-7 (TX1+) - Body ground
    		Always
    		10 kΩ or higher
    F124-8 (TX1-) - Body ground
    		Always
    		10 kΩ or higher


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
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (Click here)
OK

REPLACE MALFUNCTIONING PARTS