PARKING ASSIST MONITOR SYSTEM(for Camera built-in ECU) Guide Lines are not Displayed for All Display Modes

DTC Code DTC Name
Guide Lines are not Displayed for All Display Modes

DESCRIPTION

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

Tip:

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

WIRING DIAGRAM

E270978E07

CAUTION / NOTICE / HINT

Note:

  • 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

  • When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.

PROCEDURE

  1. 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

      Back Door Courtesy SW

      Back door courtesy switch signal

      ON or OFF

      ON: Back door open

      OFF: Back door closed

      -

      OK

      The back door courtesy switch functions as specified in the normal condition column.

      Body Electrical > Main Body > Data List

      Tester Display

      Back Door Courtesy SW

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

  2. INSPECT BACK DOOR LOCK ASSEMBLY

    1. Remove the back door lock assembly.

      Click here

    2. Inspect the back door lock assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE BACK DOOR LOCK ASSEMBLY

    Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] AND BODY GROUND)

    1. Disconnect the U27*1 or U12*2 back door lock assembly connector.

      • *1: w/ Power Back Door System

      • *2: w/o Power Back Door System

    2. Remove the main body ECU (multiplex network body ECU).

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

      Standard Resistance

      Table 1. w/ Power Back Door System

      Tester Connection

      Condition

      Specified Condition

      U27-4 (CTY) - A-20 (BCTY)

      Always

      Below 1 Ω

      U27-4 (CTY) - Body ground

      Always

      10 kΩ or higher

      U27-1 (E) - Body ground

      Always

      Below 1 Ω
      Table 2. w/o Power Back Door System

      Tester Connection

      Condition

      Specified Condition

      U12-3 (D+) - A-20 (BCTY)

      Always

      Below 1 Ω

      U12-3 (D+) - Body ground

      Always

      10 kΩ or higher

      U12-2 (ACT-) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    for LHD:

    Click here

    for RHD:

    Click here

    NG

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

    1. Disconnect the U27*1 or U12*2 back door lock assembly connector.

      • *1: w/ Power Back Door System

      • *2: w/o Power Back Door System

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

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

      Standard Resistance

      Table 3. w/ Power Back Door System

      Tester Connection

      Condition

      Specified Condition

      U27-4 (CTY) - 3E-33

      Always

      Below 1 Ω

      U27-4 (CTY) - Body ground

      Always

      10 kΩ or higher

      U27-1 (E) - Body ground

      Always

      Below 1 Ω
      Table 4. w/o Power Back Door System

      Tester Connection

      Condition

      Specified Condition

      U12-3 (D+) - 3E-33

      Always

      Below 1 Ω

      U12-3 (D+) - Body ground

      Always

      10 kΩ or higher

      U12-2 (ACT-) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    for LHD:

    Click here

    for RHD:

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR