NAVIGATION SYSTEM Sound Signal Circuit between Navigation Receiver Assembly and Video Terminal

DESCRIPTION

This is the sound signal circuit from the video (video adapter) terminal to the navigation ECU sub-assembly.

WIRING DIAGRAM

A01CDCVE25

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (VIDEO (VIDEO ADAPTER) TERMINAL - NAVIGATION ECU SUB-ASSEMBLY)


    1. Disconnect the N39 video (video adapter) terminal connector.

    2. Disconnect the F24 navigation ECU sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N39-8 (ADPG) - F24-16 (ADPG) Always Below 1 Ω
      N39-1 (VAR+) - F24-7 (VAR+) Always Below 1 Ω
      N39-2 (VAL+) - F24-8 (VAL+) Always Below 1 Ω
      N39-3 (VA-) - F24-15 (VA-) Always Below 1 Ω
      N39-7 (SG) - F24-5 (AGND) Always Below 1 Ω
      N39-8 (ADPG) - Body ground Always 10 kΩ or higher
      N39-1 (VAR+) - Body ground Always 10 kΩ or higher
      N39-2 (VAL+) - Body ground Always 10 kΩ or higher
      N39-3 (VA-) - Body ground Always 10 kΩ or higher
      N39-7 (SG) - 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