DTC    B15BB    Multi-media Interface ECU Malfunction

for Preparation Click here


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:
  1. System microprocessor malfunction
  2. Media interface microprocessor malfunction
  3. CD-LSI (Large Scale Integration) malfunction
  4. Internal power supply malfunction
  1. USB device or "iPod"
  2. No. 1 stereo jack adapter assembly
  3. Wire harness or connector
  4. Multi-media interface ECU assembly

WIRING DIAGRAM


E218815E03


INSPECTION PROCEDURE

HINT:
After the inspection is completed, clear the DTCs.

1.REPLACE "iPod" OR USB DEVICE

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

  1. Turn the power switch off.

    HINT:
    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.

  1. Turn the power switch on (ACC).

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

HINT:
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
Go to step 4
OK

USB DEVICE OR "iPod" WAS DEFECTIVE 

4.INSPECT MULTI-MEDIA INTERFACE ECU ASSEMBLY

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



    E210105E39

  1. 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

    Text in Illustration 
    *a
    		Front view of wire harness connector
    (to No. 1 Stereo Jack Adapter Assembly)



NG
Go to step 5
OK

REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY (Click here)  

5.CHECK HARNESS AND CONNECTOR

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



    E214808E10

  1. 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

    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)



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MULTI-MEDIA INTERFACE ECU ASSEMBLY (Click here)