NAVIGATION SYSTEM (for HDD), 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

  • "iPod" or USB device

  • Wire harness or connector

  • No. 1 stereo jack adapter assembly

  • Multi-media interface ECU

WIRING DIAGRAM

A017F24E02

INSPECTION PROCEDURE

Tech Tips

After the inspection is completed, clear the DTC.

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 ignition switch off.

      Tech Tips

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

    3. Turn the ignition switch to 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 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 Click here

    OK

    USB DEVICE OR "iPod" WAS DEFECTIVE

  4. INSPECT MULTI-MEDIA INTERFACE ECU


    1. A017E0LE15
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

      Disconnect the E27 No. 1 stereo jack adapter assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E27-1 (UPI) - E27-4 (UJSG) Ignition switch ACC 5 V

    NG

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - NO. 1 STEREO JACK ADAPTER) Click here

    OK

    REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - NO. 1 STEREO JACK ADAPTER)


    1. A017G9NE07

      Disconnect the E28 multi-media interface ECU connector.

    2. A017E0LE16

      Disconnect the E27 No. 1 stereo jack adapter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E28-4 (UPO) - E27-1 (UPI) Always Below 1 Ω
      E28-1 (UESG) - E27-4 (UJSG) Always Below 1 Ω
      E27-1 (UPI) - Body ground Always 10 kΩ or higher
      E27-4 (UJSG) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multi-media Interface ECU)
      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTI-MEDIA INTERFACE ECU Click here