NAVIGATION SYSTEM(for Sedan) Data Signal Circuit between Stereo Jack Adapter and Extension Module

DTC Code DTC Name
Data Signal Circuit between Stereo Jack Adapter and Extension Module

DESCRIPTION

The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the navigation ECU via this circuit.

WIRING DIAGRAM

E268438E10

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

    1. Disconnect the u4 navigation ECU connector.

    2. Disconnect the u1 No. 1 stereo jack adapter assembly connector.

    3. E226480C44

      *a

      Front view of wire harness connector

      (to Navigation ECU)

      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      u1-2 (UDO-) - u4-2 (US1-)

      Always

      Below 1 Ω

      u1-3 (UDO+) - u4-3 (US1+)

      Always

      Below 1 Ω

      u1-5 (UJSS) - u4-5 (USG1)

      Always

      Below 1 Ω

      u1-2 (UDO-) - Body ground

      Always

      10 kΩ or higher

      u1-3 (UDO+) - Body ground

      Always

      10 kΩ or higher

      u1-5 (UJSS) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR