NAVIGATION SYSTEM, Diagnostic DTC:B1567

DTC Code DTC Name
B1567 HUD Disconnected

DESCRIPTION

The combination meter mirror ECU, multi-display assembly and radio receiver assembly are connected by the AVC-LAN communication line.

This DTC is stored when an AVC-LAN communication error occurs between the combination meter mirror ECU and multi-display assembly.

Tech Tips

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B1567 HUD Disconnected A device that is listed in the AVC-LAN connected device record of the master unit is missing

  • Combination meter mirror ECU power source circuit

  • AVC-LAN circuit between combination meter mirror ECU and multi-display assembly

  • Combination meter mirror ECU

  • Multi-display assembly

  • Radio receiver assembly

  • Harness or connector

WIRING DIAGRAM

B0059XHE01

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following 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 (COMBINATION METER MIRROR ECU - BATTERY AND BODY GROUND)


    1. B005BEUC04
      *a

      Front view of wire harness connector

      (to Combination Meter Mirror ECU)

      Disconnect the combination meter mirror ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J5-4 (ES) - 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
      J5-1 (IG) - Body ground*1 Engine switch on (IG) 11 to 14 V
      J5-1 (IG) - Body ground*2 Engine switch on (IG) 10.5 to 16 V
      J5-2 (B) - Body ground Always 11 to 14 V
      J5-5 (ACC) - Body ground Engine switch on (ACC) 11 to 14 V

      • *1: w/o Stop and Strat System

      • *2: w/ Stop and Strat System

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT RADIO RECEIVER ASSEMBLY


    1. B005AMSE01

      Remove the radio receiver assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      45 (TX3+) - 46 (TX3-) Always 60 to 80 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - MULTI-DISPLAY ASSEMBLY)


    1. Disconnect the J5 combination meter mirror ECU connector.

    2. Disconnect the I42 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J5-12 (MPX1) - I42-6 (TX1+) Always Below 1 Ω
      J5-13 (MPX2) - I42-18 (TX1-) Always Below 1 Ω
      J5-12 (MPX1) - Body ground Always 10 kΩ or higher
      J5-13 (MPX2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. REPLACE COMBINATION METER MIRROR ECU


    1. Replace the combination meter mirror ECU.

      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 (COMBINATION METER MIRROR ECU IS DEFECTIVE)

    NG

  11. REPLACE MULTI-DISPLAY ASSEMBLY


    1. Replace the multi-display assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  12. CLEAR DTC


    1. Clear the DTCs.

      Click here


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

    NEXT

  13. 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 ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here