Navigation System Visual Mute Signal Circuit Between Navigation Ecu And Multi-Display

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Navigation Multi Info Display. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY ASSEMBLY)

NAVIGATION SYSTEM - Visual Mute Signal Circuit between Navigation ECU and Multi-display


DESCRIPTION

The multi-media module receiver assembly sends a visual mute signal to the multi-display assembly. As a result, a black screen is inserted when the screen changes so that noise and distorted images are not displayed.
When an open exists in the circuit, noise and distorted images will be displayed instead of a black screen.
When a short exists in the circuit, even though the multi-display assembly is operating normally, noise and distorted images will be displayed (black screen will not be displayed) during screen changes or the black screen will always be displayed.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Navigation Multi Info Display.Navigation System.Navigation System Visual Mute Signal Circuit Between Navigation Ecu And Multi-Display


INSPECTION PROCEDURE

1.CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Navigation Multi Info Display.Navigation System.Navigation System Visual Mute Signal Circuit Between Navigation Ecu And Multi-Display

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    F77-10 (VMTF) - Body ground
    		Engine switch on (ACC), screen display changes.
    		3.5 V or higher → Below 1 V → 3.5 V or higher
    Text in Illustration
    *a
    		Component with harness connected
    (Multi-media Module Receiver Assembly)


NG
REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)
OK


2.CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY ASSEMBLY)

  1. Disconnect the F79 multi-display assembly connector.

  1. Disconnect the F77 multi-media module receiver assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F79-11 (VMTI) - F77-10 (VMTF)
    		Always
    		Below 1 Ω
    F79-11 (VMTI) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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