NAVIGATION SYSTEM(for Navigation Receiver Type), Diagnostic DTC:B15D8

DTC Code DTC Name
B15D8 Monitor Disconnected

DESCRIPTION

The parking assist ECU and navigation receiver assembly are connected by an AVC-LAN communication line. When an AVC-LAN communication error occurs between the navigation receiver assembly and parking assist ECU, these DTCs will be stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15D8 Monitor Disconnected A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Parking assist ECU power source circuit

  • AVC-LAN circuit

  • Parking assist ECU

  • Navigation receiver assembly

Tech Tips

For the AVC-LAN communication line, the navigation receiver assembly is the master unit.

WIRING DIAGRAM

B006LPBE01

CAUTION / NOTICE / HINT

Note


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

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

    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 AVC-LAN communication.

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


    B

    GO TO STEP 5 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 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 (PARKING ASSIST ECU POWER SOURCE)


    1. B006PNJC06
      *a

      Front view of wire harness connector

      (to Parking Assist ECU)

      Disconnect the parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F9-3 (GND1) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F9-2 (+B) - F9-3 (GND1) Always 11 to 14 V
      F9-6 (IG) - F9-3 (GND1) Engine switch on (IG) 11 to 14 V
      F9-1 (ACC) - F9-3 (GND1) Engine switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. B006L5WC01
      *a

      Component without harness connected

      (Navigation Receiver Assembly)

      Remove the navigation receiver assembly.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      7 (TX3+) - 8 (TX3-) Always 60 to 80 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARKING ASSIST ECU)


    1. Disconnect the F4 navigation receiver assembly connector.

    2. Disconnect the F9 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F4-7 (TX3+) - F9-13 (TX+) Always Below 1 Ω
      F4-8 (TX3-) - F9-12 (TX-) Always Below 1 Ω
      F4-7 (TX3+) or F9-13 (TX+) - Body ground Always 10 kΩ or higher
      F4-8 (TX3-) or F9-12 (TX-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. REPLACE PARKING ASSIST ECU


    1. Replace the parking assist ECU 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 (PARKING ASSIST ECU IS DEFECTIVE)

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here