NAVIGATION SYSTEM (for HDD) DVD Image Signal Circuit between Navigation ECU and Multi-display

DESCRIPTION

This circuit sends a DVD image signal from the display and navigation module display to the multi-display assembly.

WIRING DIAGRAM

A01NDD6E01

INSPECTION PROCEDURE

Note

When replacing the display and navigation module display, perform vehicle contract setting (w/ G-BOOK system) Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. A01NE2QE04

      Disconnect the G5 display and navigation module display connector.

    2. A01NFN7E06

      Disconnect the G2 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G5-10 (NTSF) - G2-4 (NTSC) Always Below 1 Ω
      G5-21 (SGD1) - G2-16 (SG) Always Below 1 Ω
      G5-10 (NTSF) - Body ground Always 10 kΩ or higher
      G5-21 (SGD1) - Body ground Always 10 kΩ or higher
      G5-22 (SLD1) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Display and Navigation Module Display)
      *2

      Front view of wire harness connector

      (to Multi-display Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY (DVD IMAGE SIGNAL)


    1. A01NEVSE01

      Reconnect the G5 display and navigation module display connector.

    2. Check the waveform according to the table below.

    3. A01NGM2E10
      Text in Illustration
      *1

      Component with harness connected

      (Display and Navigation Module Display)
      *2 Synchronization Signal
      *3 Video Waveform

      Oscilloscope waveform

      Item Content
      Measurement terminal G5-10 (NTSF) - Body ground
      Measurement setting 200 mV/DIV., 10 μs/DIV.
      Condition DVD is displayed on multi-display

      Tech Tips

      The video waveform changes according to the image output from the display and navigation module display to the multi-display assembly, but the synchronization signal does not change.


    NG

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here

    OK

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