NAVIGATION SYSTEM AVC-LAN Circuit

DESCRIPTION

Each unit of the navigation system connected to the AVC-LAN (communication bus) transfers the switch signals using the AVC-LAN.

If a short to +B or short to ground occurs in the AVC-LAN, the navigation system will not function normally because communication is not possible.

WIRING DIAGRAM

A01NIOSE04

INSPECTION PROCEDURE

Note


    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.

Tech Tips

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

PROCEDURE


  1. INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. A01NL2XE04
      Text in Illustration
      *A w/ Side Monitor System
      *B w/ Headup Display
      *a

      Component without harness connected

      (Multi-media Module Receiver Assembly)

      Disconnect the G35 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G35-7 (TX1+) - G35-8 (TX1-)*1 Always 60 to 80 Ω
      G35-24 (TX2+) - G35-25 (TX2-)*2 Always 60 to 80 Ω
      G35-45 (TX3+) - G35-46 (TX3-) Always 60 to 80 Ω

      • *1: w/ Side Monitor System

      • *2: w/ Headup Display


    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY ASSEMBLY)


    1. Disconnect the G35 multi-media module receiver assembly connector.

    2. Disconnect the G2 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G35-45 (TX3+) - G2-7 (TX+) Always Below 1 Ω
      G35-46 (TX3-) - G2-19 (TX-) Always Below 1 Ω
      G35-45 (TX3+) - Body ground Always 10 kΩ or higher
      G35-46 (TX3-) - Body ground Always 10 kΩ or higher

    4. Proceed to the next step based on the inspection result.

      Result
      Condition Proceed to
      OK (w/ Headup display) A
      OK (w/o Headup display and w/ Side Monitor System) B
      OK (w/o Headup display and w/o Side Monitor System) C
      NG D

    B

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - PARKING ASSIST ECU) Click here

    C

    INSPECT MALFUNCTIONING PARTS Click here

    D

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

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


    1. Disconnect the G35 multi-media module receiver assembly connector.

    2. Disconnect the H1 combination meter mirror ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G35-24 (TX2+) - H1-10 (MPX1) Always Below 1 Ω
      G35-25 (TX2-) - H1-11 (MPX2) Always Below 1 Ω
      G35-24 (TX2+) - Body ground Always 10 kΩ or higher
      G35-25 (TX2-) - Body ground Always 10 kΩ or higher

    4. Proceed to the next step based on the inspection result.

      Result
      Condition Proceed to
      OK (w/ Side Monitor System) A
      OK (w/o Side Monitor System) B
      NG C

    B

    INSPECT MALFUNCTIONING PARTS Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  4. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - PARKING ASSIST ECU)


    1. Disconnect the G35 multi-media module receiver assembly connector.

    2. Disconnect the F110 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G35-7 (TX1+) - F110-11 (TX+) Always Below 1 Ω
      G35-8 (TX1-) - F110-10 (TX-) Always Below 1 Ω
      G35-7 (TX1+) - Body ground Always 10 kΩ or higher
      G35-8 (TX1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT MALFUNCTIONING PARTS


    1. Disconnect and reconnect each slave unit one by one until the master unit returns to normal operation.

      Tech Tips


      • Check all slave units.

      • If disconnecting a slave unit causes the master unit to return to normal operation, the slave unit is defective and should be replaced.

      OK
      Master unit returns to normal operation.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    REPLACE MALFUNCTIONING PARTS