AUDIO AND VISUAL SYSTEM (w/ Multi-display), Diagnostic DTC:B15B4, B15B7, B15F9

DTC Code DTC Name
B15B4 CD Changer Malfunction
B15B7 Bluetooth Module Malfunction
B15F9 UART Communication Malfunction(for A/C)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the radio receiver assembly.

DTC No. DTC Detection Condition Trouble Area
B15B4

When one of the conditions below is met:


  • Mechanism drive signal malfunction

  • Load/Eject malfunction

  • Read mechanism malfunction

  • Mechanical malfunction

 Radio receiver assembly
B15B7 "Bluetooth" module malfunction
B15F9

When either of the conditions below is met:


  • Open in UART communication line is detected based on radio receiver assembly failure

  • Open in UART communication line is detected based on communication error

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here