NAVIGATION SYSTEM (for DVD), Diagnostic DTC:B1568, B159D, B159E, B15D9

DTC Code DTC Name
B1568 Clock Device Disconnected
B159D No Response from Operation Panel
B159E No Response from Clock Device
B15D9 Operation Panel Disconnected

DESCRIPTION

The display and navigation module display and radio receiver assembly (A/C control panel) are connected by the AVC-LAN communication line.

When an AVC-LAN communication error occurs between the display and navigation module display and radio receiver assembly (A/C control panel), these DTCs will be stored.

DTC No. DTC Detection Condition Trouble Area
B1568*1 A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Radio receiver assembly (A/C control panel) power source circuit

  • AVC-LAN circuit between display and navigation module display and radio receiver assembly (A/C control panel)

  • Display and navigation module display

  • Multi-display assembly

  • Radio receiver assembly (A/C control panel)
B15D9*1
B159D No response to the diagnostic memory request from the master unit.
B159E

Tech Tips


  • *1: Even if no fault is present, this DTC may be stored depending on the battery condition or hybrid system start voltage.

  • The display and navigation module display is the master unit.

WIRING DIAGRAM

A01NI0RE03

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

        Tech Tips


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

        • This DTC may be stored when an AVC-LAN 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 if the same DTC is output again.

      OK
      No DTCs are output.

    NG

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY (A/C CONTROL PANEL) POWER SOURCE) Click here

    OK

    END

  4. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY (A/C CONTROL PANEL) POWER SOURCE)


    1. A01NE8RE03
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Radio Receiver Assembly (A/C Control Panel))

      Disconnect the radio receiver assembly (A/C control panel) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G8-9 (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
      G8-8 (+B) - G8-9 (GND) Power switch off 11 to 14 V
      G8-16 (ACC) - G8-9 (GND) Power switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (AVC-LAN COMMUNICATION LINE)


    1. A01NFN7E07

      Disconnect the multi-display assembly connector.

    2. A01NE8RE04

      Disconnect the radio receiver assembly (A/C control panel) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G2-6 (TX1+) - G8-5 (TX+) Always Below 1 Ω
      G2-18 (TX1-) - G8-13 (TX-) Always Below 1 Ω
      G2-6 (TX1+) - Body ground Always 10 kΩ or higher
      G2-18 (TX1-) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Multi-display Assembly)
      *2

      Front view of wire harness connector

      (to Radio Receiver Assembly (A/C Control Panel))

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE RADIO RECEIVER ASSEMBLY (A/C CONTROL PANEL)


    1. Replace the radio receiver assembly (A/C control panel) Click here.

    2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-DISPLAY ASSEMBLY Click here

    OK

    END

  7. REPLACE MULTI-DISPLAY ASSEMBLY


    1. Replace the multi-display assembly Click here.

    2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    NG

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here

    OK

    END