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

DTC Code DTC Name
Multi-media Interface ECU Power Source Circuit

DESCRIPTION

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

WIRING DIAGRAM

E180194E50

PROCEDURE

  1. CHECK MULTI-MEDIA INTERFACE ECU

    1. E195976C02

      *a

      Front view of wire harness connector

      (to Multi-media Interface ECU)

      Disconnect the H15 multi-media interface ECU connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      H15-12 (+B) - H15-7 (GND)

      Always

      11 to 14 V

      H15-11 (ACC) - H15-7 (GND)

      Engine switch on (ACC)

      11 to 14 V

      Result

      Result

      OK

      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    NG
  2. CHECK HARNESS AND CONNECTOR

    1. Disconnect the H15 multi-media interface ECU connector.

    2. Disconnect the H14 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

      H15-11 (ACC) - H14-11 (ACC)

      Always

      Below 1 Ω

      H15-12 (+B) - H14-12 (+B)

      Always

      Below 1 Ω

      H15-7 (GND) - H14-7 (GND)

      Always

      Below 1 Ω

      H15-11 (ACC) - Body ground

      Always

      10 kΩ or higher

      H15-12 (+B) - Body ground

      Always

      10 kΩ or higher

      H15-7 (GND) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG

    OK

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR