NAVIGATION SYSTEM (for DVD) Display Signal Circuit between Navigation ECU and Radio Receiver

DESCRIPTION

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

WIRING DIAGRAM

A00975PE05

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - DISPLAY AND NAVIGATION MODULE DISPLAY)


    1. Disconnect the H1 radio receiver assembly connector.

    2. Disconnect the H3 display and navigation module display connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H1-8 (NTSC) - H3-9 (VV+) Always Below 1 Ω
      H1-22 (GND) - H3-20 (VV-) Always Below 1 Ω
      H1-8 (NTSC) - Body ground Always 10 kΩ or higher
      H1-22 (GND) - Body ground Always 10 kΩ or higher
      H1-7 (SLD) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK RADIO RECEIVER ASSEMBLY


    1. A009AIEE01
      Text in Illustration
      *a

      Component with harness connected

      (Radio Receiver Assembly)

      Using an oscilloscope, check the waveform between each terminal and the body ground according to the conditions shown in the table below.

      Standard
      Tester Connection Condition Specified Condition
      H1-8 (NTSC) - Body ground Radio receiver is playing, image is being produced Waveform synchronized with image is output

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

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