REAR SEAT ENTERTAINMENT SYSTEM, Diagnostic DTC:B15D5

DTC Code DTC Name
B15D5 Rear Seat Entertainment System Disconnected

DESCRIPTION

The radio receiver assembly and multi-display controller sub-assembly are connected via MOST communication lines.

When a MOST communication error occurs between the radio receiver assembly and multi-display controller sub-assembly, this DTC 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

  • Radio receiver assembly

  • Harness or connector

Tech Tips

For the MOST network, the radio receiver assembly is the master unit.

WIRING DIAGRAM

B004V6PE04

CAUTION / NOTICE / HINT

Note


  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Rear Seat Entertainment System.

    Click here

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

PROCEDURE


  1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    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 a MOST communication error occurs due to electrical noise.


    B

    GO TO STEP 3 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.

      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 FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (OPTIONAL COMPONENTS IS DEFECTIVE)

    NG

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


    1. Disconnect the L138 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
      L138-14 (GND) - 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
      L138-1 (+B) - Body ground Power switch off 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 - RADIO RECEIVER ASSEMBLY)


    1. Disconnect the L161 multi-display controller sub-assembly connector.

    2. Disconnect the G136 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L161-5 (MO+) - G136-2 (MI+) Always Below 1 Ω
      L161-6 (MO-) - G136-3 (MI-) Always Below 1 Ω
      L161-7 (SLDO) - G136-4 (SLDI) Always Below 1 Ω
      L161-5 (MO+) - Body ground Always 10 kΩ or higher
      L161-6 (MO-) - Body ground Always 10 kΩ or higher
      L161-7 (SLDO) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY


    1. Replace the multi-display controller sub-assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  9. CHECK FOR DTC


    1. Check for DTCs.

      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 RADIO RECEIVER ASSEMBLY Click here