AUDIO AND VISUAL SYSTEM (w/ Navigation System), Diagnostic DTC:B15BB

DTC Code DTC Name
B15BB Multi-media Interface ECU Malfunction

DESCRIPTION

This DTC is stored when a malfunction occurs in the multi-media interface ECU assembly.

DTC No. DTC Detection Condition Trouble Area
B15BB

When one of the conditions below is met:


  • System microprocessor malfunction

  • Media interface microprocessor malfunction

  • CD-LSI (Large Scale Integration) malfunction

  • Internal power supply malfunction

  • USB device or "iPod"

  • No. 1 stereo jack adapter assembly

  • Wire harness or connector

  • Multi-media interface ECU assembly

WIRING DIAGRAM

A003Y23E03

INSPECTION PROCEDURE

Tech Tips

After the inspection is completed, clear the DTCs.

PROCEDURE


  1. REPLACE "iPod" OR USB DEVICE


    1. Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.

    2. Turn the power switch off.

      Tech Tips

      When this DTC has been stored, it is necessary to turn off the power switch to make it possible for the vehicle to recognize a new device when it is connected.

    3. Turn the power switch on (ACC).

    4. Connect a known good USB device or "iPod" to the No. 1 stereo jack adapter assembly.

      Tech Tips

      If the malfunction occurred when a USB device was in use, use another USB device for the inspection. If the malfunction occurred when an "iPod" was in use, use another "iPod" for the inspection.


    NEXT

  2. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  3. RECHECK FOR DTC


    1. Recheck for DTCs and check if the same DTC is output again.

      OK
      No DTCs are output.

    NG

    INSPECT MULTI-MEDIA INTERFACE ECU ASSEMBLY Click here

    OK

    USB DEVICE OR "iPod" WAS DEFECTIVE

  4. INSPECT MULTI-MEDIA INTERFACE ECU ASSEMBLY


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

    2. A003VY1E39
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H120-1 (UPI) - H120-4 (UJSG) Power switch on (ACC) 5 V

    NG

    CHECK HARNESS AND CONNECTOR Click here

    OK

    REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR


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

    2. A003WEVE10
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)
      *b

      Front view of wire harness connector

      (to Multi-media Interface ECU Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H121-4 (UPO) - H120-1 (UPI) Always Below 1 Ω
      H121-1 (UESG) - H120-4 (UJSG) Always Below 1 Ω
      H120-1 (UPI) - Body ground Always 10 kΩ or higher
      H120-4 (UJSG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTI-MEDIA INTERFACE ECU ASSEMBLY Click here