PARKING ASSIST MONITOR SYSTEM Guide Lines and Buttons are not Displayed for All Display Modes

DESCRIPTION

The navigation ECU sub-assembly receives luggage compartment door lock assembly 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 adjusting the camera aiming calibration while the back door is open, a back door open warning message will be displayed on the screen and camera aiming adjustment will be canceled.

Tech Tips

  • Check the parking assist monitor screen display mode settings. (Check if the parking guide lines are set to off.)

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

WIRING DIAGRAM

A011YIJE02

INSPECTION PROCEDURE

Note

  • When "System initializing" is displayed on the navigation ECU sub-assembly 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.

PROCEDURE

  1. READ VALUE USING TECHSTREAM

    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

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

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

      Main Body (Main Body ECU (Multiplex Network Body ECU))
      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

      		 -
      OK
      The luggage compartment door courtesy switch functions as specified in the normal condition column.
    NG

    INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY Click here

    OK

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

  2. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

    1. Check operation of the door courtesy switch.

      A011VUOE02

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

        Standard Resistance
        Measurement Condition Switch Condition Specified Condition
        2 (E) - 3 (D+) Close (Lock) 10 kΩ or higher
        2 (E) - 3 (D+) Open (Unlock) Below 1 Ω
        Text in Illustration
        *a

        Component without harness connected

        (Luggage Compartment Door Lock Assembly)
        *b Close (Lock)
        *c Open (Unlock)
    NG

    REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY Click here

    OK

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

    1. Disconnect the T3 luggage compartment door lock assembly connector.

    2. Disconnect the 3C instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T3-3 (D+) - 3C-9 Always Below 1 Ω
      T3-3 (D+) - Body ground Always 10 kΩ or higher
      T3-2 (E) - Body ground Always Below 1 Ω
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. 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.

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

      A011WLDE13
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      3C-9 - MB-4 (LGCY) Always Below 1 Ω
    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    OK

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