AUDIO AND VISUAL SYSTEM (w/ Navigation System) Multi-media Interface ECU Power Source Circuit

DESCRIPTION

This circuit provides power to the multi-media interface ECU.

WIRING DIAGRAM

A01NH1YE02

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. INSPECT MULTI-MEDIA INTERFACE ECU


    1. Disconnect the multi-media interface ECU connector.

    2. A01ND02E04
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Multi-media Interface ECU)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      U9-12 (+B) - U9-7 (GND) Always 11 to 14 V
      U9-11 (ACC) - U9-7 (GND) Power switch on (ACC) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR Click here

    OK

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

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the display and navigation module display connector.

    2. A01NGE4E05
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Multi-media Interface ECU)
      *2

      Front view of wire harness connector

      (to Display and Navigation Module Display)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U9-11 (ACC) - G24-11 (ACC) Always Below 1 Ω
      U9-12 (+B) - G24-12 (+B) Always Below 1 Ω
      U9-7 (GND) - G24-7 (GND) Always Below 1 Ω
      U9-11 (ACC) - Body ground Always 10 kΩ or higher
      U9-12 (+B) - Body ground Always 10 kΩ or higher
      U9-7 (GND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here