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NAVIGATION SYSTEM, Diagnostic DTC:B1567

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DTC Code DTC Name
B1567 HUD Disconnected
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DESCRIPTION

The multi-media module receiver assembly and combination meter mirror ECU are connected via AVC-LAN communication.

When an AVC-LAN communication error occurs between the multi-media module receiver assembly and combination meter mirror ECU, this DTC will be stored.

DTC No. DTC Detection Condition Trouble Area
B1567 Combination meter mirror ECU is not/was not connected while the engine switch is/was on (ACC or IG).

  • Combination meter mirror ECU power source circuit

  • AVC-LAN circuit between multi-media module receiver assembly and combination meter mirror ECU

  • Combination meter mirror ECU

  • Multi-media module receiver assembly

  • Harness or connector
Tip:

  • Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.

  • The multi-media module receiver assembly is the master unit.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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


  • w/ G-BOOK System:

  • When replacing the multi-media module receiver assembly or telematics transceiver, perform vehicle contract setting (w/ Telematics Transceiver) (Click here).

  • When replacing the multi-media module receiver assembly, perform vehicle contract setting (w/o Telematics Transceiver) (Click here).

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PROCEDURE


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    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 AVC-LAN communication.

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


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    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.


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    CHECK DTC


    1. Clear the DTCs (Click here).

    2. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

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    CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU POWER SOURCE)


    1. Disconnect the H1 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
      H1-5 (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
      H1-2 (B) - H1-5 (ES) Always 11 to 14 V
      H1-3 (ACC) - H1-5 (ES) Engine switch on (ACC) 11 to 14 V
      H1-1 (IG) - H1-5 (ES) Engine switch on (IG) 11 to 14 V

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    CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - MULTI-MEDIA MODULE RECEIVER ASSEMBLY)


    1. Disconnect the H1 combination meter mirror ECU connector.

    2. Disconnect the G36 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
      H1-10 (MPX1) - G36-24 (TX2+) Always Below 1 Ω
      H1-11 (MPX2) - G36-25 (TX2-) Always Below 1 Ω
      H1-10 (MPX1) - Body ground Always 10 kΩ or higher
      H1-11 (MPX2) - Body ground Always 10 kΩ or higher

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    REPLACE COMBINATION METER MIRROR ECU


    1. Replace the combination meter mirror ECU (Click here).

    2. Clear the DTCs (Click here).

    3. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

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    END

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLYClick here