NAVIGATION SYSTEM, Diagnostic DTC:B15D5

DTC Code DTC Name
B15D5 Rear Seat Entertainment System Disconnected

DESCRIPTION

The multi-media module receiver assembly and multi-display controller sub-assembly are connected by the MOST communication line.

When a MOST communication error occurs between the multi-media module receiver assembly and multi-display controller sub-assembly, these DTCs will be stored.

DTC No. DTC Detection Condition Trouble Area
B15D5 A device that is listed in the MOST network connected device record of the master unit is missing.

  • Multi-display controller sub-assembly power source circuit

  • MOST circuit between stereo component amplifier assembly and multi-display controller sub-assembly

  • MOST circuit between multi-display controller sub-assembly and multi-media module receiver assembly

  • Multi-display controller sub-assembly

  • Multi-media module receiver assembly

Tech Tips

For the MOST network, the multi-media module receiver assembly is the master unit.

WIRING DIAGRAM

A01NL3YE02

INSPECTION PROCEDURE

Note


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.


    w/ G-BOOK System:

  • When replacing the multi-media module receiver assembly or telematics transceiver, perform vehicle contract setting (w/ Telematics Transceiver) Click here.

  • When replacing the multi-media module receiver assembly, perform vehicle contract setting (w/o Telematics Transceiver) Click here.

PROCEDURE


  1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Check for optional components.


      1. Check that optional components (including associated wiring) which generate radio waves are not installed.

        Result
        Result Proceed to
        Optional components (including associated wiring) are installed. A
        Optional components (including associated wiring) are not installed. B

        Tech Tips


        • Electrical noise from radio waves generated by optional components or the wiring for those components may affect MOST communication.

        • This DTC may be stored when an MOST communication error occurs due to electrical noise.


    B

    CHECK DTC Click here

    A

  2. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Remove optional components (including associated wiring).

      Note

      Do not remove optional components or associated wiring without the permission of the customer.


    NEXT

  3. 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

    CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY POWER SOURCE) Click here

    OK

    END

  4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY POWER SOURCE)


    1. Disconnect the G46 multi-display controller sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G46-14 (GND) - Body ground Always Below 1 Ω
      G46-15 (GND5) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G46-1 (+B) - G46-14 (GND) Power switch off 11 to 14 V
      G46-6 (+B2) - G46-14 (GND) Power switch off 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY)


    1. Disconnect the O44 multi-display controller sub-assembly connector.

    2. Disconnect the O43 stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O44-2 (MI+) - O43-5 (MO+) Always Below 1 Ω
      O44-3 (MI-) - O43-6 (MO-) Always Below 1 Ω
      O44-4 (SLDI) - O43-7 (SLDO) Always Below 1 Ω
      O44-2 (MI+) - Body ground Always 10 kΩ or higher
      O44-3 (MI-) - Body ground Always 10 kΩ or higher
      O44-4 (SLDI) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY)


    1. Disconnect the O44 multi-display controller sub-assembly connector.

    2. Disconnect the G45 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O44-5 (MO+) - G45-2 (MI+) Always Below 1 Ω
      O44-6 (MO-) - G45-3 (MI-) Always Below 1 Ω
      O44-7 (SLDO) - G45-4 (SLDI) Always Below 1 Ω
      O44-5 (MO+) - Body ground Always 10 kΩ or higher
      O44-6 (MO-) - Body ground Always 10 kΩ or higher
      O44-7 (SLDO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY


    1. Replace the multi-display controller sub-assembly Click here.

    2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    END