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.

Detection Item

DTC Detection Condition

Trouble Area

B15D5

Rear Seat Entertainment System Disconnected

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
Tip:

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

WIRING DIAGRAM

E283027E01

CAUTION / NOTICE / HINT

Note:

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

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
        Tip:

        • 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 a MOST communication error occurs due to electrical noise.

    B

    CLEAR DTCClick 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.

    Result

    Proceed to

    NEXT
    NEXT

  3. CLEAR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Navigation System > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  4. CHECK DTC

    1. Recheck for DTCs and check if the same DTC is output again.

      Click here

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (COMMUNICATION MALFUNCTION DUE TO NOISE)

    NG

  5. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - BATTERY AND BODY GROUND)

    1. E248933C01

      *a

      Front view of wire harness connector

      (to Multi-display Controller Sub-assembly)

      Disconnect the 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

      H54-14 (GND) - Body ground

      Always

      Below 1 Ω

      H54-15 (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

      H54-6 (+B) - H54-14 (GND)

      Always

      11 to 14 V

      H54-1 (+B1) - H54-14 (GND)

      Always

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. Disconnect the H63 multi-display controller sub-assembly connector.

    2. Disconnect the R50 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

      H63-2 (MI+) - R50-5 (MO+)

      Always

      Below 1 Ω

      H63-3 (MI-) - R50-6 (MO-)

      Always

      Below 1 Ω

      H63-4 (SLDI) - R50-7 (SLDO)

      Always

      Below 1 Ω

      H63-2 (MI+) - Body ground

      Always

      10 kΩ or higher

      H63-3 (MI-) - Body ground

      Always

      10 kΩ or higher

      H63-4 (SLDI) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. Disconnect the H63 multi-display controller sub-assembly connector.

    2. Disconnect the H62 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

      H63-5 (MO+) - H62-2 (MI+)

      Always

      Below 1 Ω

      H63-6 (MO-) - H62-3 (MI-)

      Always

      Below 1 Ω

      H63-7 (SLDO) - H62-4 (SLDI)

      Always

      Below 1 Ω

      H63-5 (MO+) - Body ground

      Always

      10 kΩ or higher

      H63-6 (MO-) - Body ground

      Always

      10 kΩ or higher

      H63-7 (SLDO) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY

    1. Replace the multi-display controller sub-assembly with a new or normally functioning one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  9. CLEAR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Navigation System > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  10. CHECK DTC

    1. Recheck for DTCs and check if the same DTC is output again.

      Click here

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here