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.

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"

  • Wire harness or connector

  • No. 1 stereo jack adapter assembly

  • Multi-media interface ECU

WIRING DIAGRAM

A01612FE51

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 engine switch off.

      Tech Tips

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

    3. Turn the engine 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 DTC is output.

    NG

    INSPECT MULTI-MEDIA INTERFACE ECU Click here

    OK

    USB DEVICE OR "iPod" WAS DEFECTIVE

  4. INSPECT MULTI-MEDIA INTERFACE ECU


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

    2. A016242E41
      Text in Illustration
      *1

      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
      z7-1 (UPI) - z7-4 (UJSG) Always 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 connector.

    2. A0162LDE10
      Text in Illustration
      *1

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)
      *2

      Front view of wire harness connector

      (to Multi-media Interface ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J117-4 (UPO) - z7-1 (UPI) Always Below 1 Ω
      J117-1 (UESG) - z7-4 (UJSG) Always Below 1 Ω
      z7-1 (UPI) - Body ground Always 10 kΩ or higher
      z7-4 (UJSG) - Body ground Always 10 kΩ or higher

    3. Proceed to the next step based on the inspection result.

      Result
      Condition Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE MULTI-MEDIA INTERFACE ECU (for RHD) Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

    REPLACE MULTI-MEDIA INTERFACE ECU (for LHD) Click here