PARKING ASSIST MONITOR SYSTEM(w/ Parallel Parking Assist Function) Guide Lines and Buttons are not Displayed for All Display Modes

DESCRIPTION

The radio receiver assembly receives luggage compartment door open/close signals from the main body ECU (multiplex network body ECU) via CAN communication. When the luggage compartment door is open, the camera aiming cannot be adjusted correctly because the rear television camera assembly is installed on the luggage compartment door. Therefore, when performing back camera position setting while the luggage compartment door is open, a luggage compartment door open warning message will be displayed on the screen and back camera position setting will be canceled.

Tech Tips


  • Check the parking assist monitor screen display mode settings. (Check that estimated course line display mode is selected.)

  • The luggage compartment door lock assembly is connected to the main body ECU (multiplex network body ECU) by the vehicle wire harness.

WIRING DIAGRAM

A0020MHE02

CAUTION / NOTICE / HINT

Note


  • When "System initializing" is displayed on the multi-display after disconnecting the cable from the negative (-) auxiliary battery terminal, correct the steering angle neutral point.

    Click here

  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed.

    Click here

  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

PROCEDURE


  1. CHECK LUGGAGE DOOR OPENER SYSTEM


    1. Check that the luggage door opener system operates normally.

      Click here

      OK
      Luggage door opener system operates normally.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO LUGGAGE DOOR OPENER SYSTEM Click here

    OK

  2. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Luggage Courtesy SW Luggage compartment door courtesy switch signal ON or OFF

      ON: Luggage compartment door open

      OFF: Luggage compartment door closed

      		 -

      Body Electrical > Main Body > Data List
      Tester Display
      Luggage Courtesy SW
      OK
      The luggage compartment door courtesy switch functions as specified in the normal condition column.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

  3. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY


    1. Remove the luggage compartment door lock assembly.

      Click here

    2. Inspect the luggage compartment door courtesy switch built into the luggage compartment door lock assembly.

      Click here

      OK
      Luggage compartment door lock assembly is normal.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the 4D instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q49-3 (D+) - 4D-16 Always Below 1 Ω
      Q49-3 (D+) - Body ground Always 10 kΩ or higher
      Q49-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

    2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

      Click here

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

      A0020ISC21
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      4D-16 - MB-4 (LGCY) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here