PARKING ASSIST MONITOR SYSTEM DIAGNOSIS SYSTEM


  1. PARKING ASSIST MONITOR DIAGNOSIS SYSTEM


    1. For parking assist monitor system diagnosis, signals received by the parking assist ECU can be checked and the parking assist monitor system can be calibrated, adjusted and checked using the display and navigation module display.

      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.

      Tech Tips

      The displayed screens and items may differ depending on vehicle specifications.

  2. DIAGNOSIS SCREEN TRANSITION


    1. w/o Side Monitor System


      1. During parking assist ECU initialization

        A0095QPE01
        A0099ZF

      2. After parking assist ECU initialization

        A0096TEE01
        A00977K

    2. w/ Wide View Monitor and Side Monitor System


      1. During parking assist ECU initialization

        A009C42E01
        A0095EI

      2. After parking assist ECU initialization

        A0097Z1E01
        A00977K

    3. w/ Multi-terrain Monitor


      1. During parking assist ECU initialization

        A0099MPE01
        A0095EI

      2. After parking assist ECU initialization

        A0097Z1E01
        A0098AE

  3. DIAGNOSTIC MODE


    1. Start diagnostic mode.


    2. Failure diagnosis.


    3. A0099LU

      System check (check using system check mode screen).


    4. Finish diagnostic mode.


  4. SIGNAL CHECK (PARKING ASSIST ECU INPUT SIGNAL)


    1. Start diagnostic mode.



      1. A0096T7

        Select "Function Check/Setting" on the Service Menu screen to display the Function Check/Setting screen.

      2. A00951Z

        Select "Camera Setting" on the Function Check/Setting screen.

        Tech Tips

        After "Camera Setting" is selected, the screen transitions differ depending on whether initialization of the parking assist ECU was performed after parking assist ECU replacement.

        Parking Assist ECU Initialization Screen Transition
        Not performed SIGNAL CHECK screen
        Performed MODE SETTING screen
      3. A009ATT

        When the screen changes to the MODE SETTING screen, select "BACK CAMERA SETTING" to display the SIGNAL CHECK screen.

        Tech Tips

        To select a grayed out item, select and hold the item for 2 seconds or more.

    2. A009B55

      SIGNAL CHECK


      1. On the SIGNAL CHECK screen, it is possible to inspect the state of signals sent to the parking assist ECU and check the settings.

        Item Inspection Detail Note
        SPEED Speed signal input When "CHK" (red) is displayed, selecting "NEXT" will not change the display to the next screen.
        CAMERA SW Steering pad switch assembly (wide view front and side monitor switch) signal input
        BCTY State of CAN communication with main body ECU
        MIRROR SW Outer rear view mirror retract signal input
        SHIFT Shift signal input
        STR SIG Steering angle sensor signal input
        HANDLE Steering wheel position signal input
        BRAND TOYOTA/LEXUS brand signal
        BODY Body size signal
        DEST Destination information signal input
        MTM Multi-terrain monitor signal
        WFS SET Wide view front monitor signal
        T/M Transmission type signal

        Tech Tips


        • When "CHK" (red) is displayed, perform inspections based on the result of the following inspections.

        • If performing the adjustment after proceeding to the next screen, confirm that all items display "OK" (blue) before selecting "NEXT".

    3. SPEED inspection

      Tech Tips

      If "CHK" (red) is displayed for "SPEED", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    4. CAMERA SW inspection


      1. Check that "OK" (blue) is displayed for "CAMERA SW" and select "OK".

      2. Check that "OK" (blue) changes to "CHK" (red). Press the wide view front and side monitor switch (steering pad switch assembly) and check that "CHK" (red) returns to "OK" (blue).

        Tech Tips

        If "CHK" (red) remains displayed or the "CAMERA SW" inspection result is not normal, perform troubleshooting according to Problem Symptoms Table ("CHK" message(s) are displayed on the SIGNAL CHECK screen) Click here.

    5. BCTY inspection

      Tech Tips

      If "CHK" (red) is displayed for "BCTY", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    6. MIRROR SW inspection

      Tech Tips

      If "CHK" (red) is displayed for "MIRROR SW", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    7. SHIFT inspection

      Tech Tips

      If "CHK" (red) is displayed for "SHIFT", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    8. STR SIG inspection

      Tech Tips

      If "CHK" (red) is displayed for "STR SIG", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    9. HANDLE inspection

      Tech Tips

      If "CHK" (red) is displayed for "HANDLE", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    10. BODY inspection

      Tech Tips

      If "CHK" (red) is displayed for "BODY", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    11. DEST inspection

      Tech Tips

      If "CHK" (red) is displayed for "DEST", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    12. BRAND inspection

      Tech Tips

      If "CHK" (red) is displayed for "BRAND", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    13. MTM inspection

      Tech Tips

      If "CHK" (red) is displayed for "MTM", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    14. WFS SET inspection

      Tech Tips

      If "CHK" (red) is displayed for "WFS SET", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    15. T/M inspection

      Tech Tips

      If "CHK" (red) is displayed for "T/M", check for DTCs and perform troubleshooting based on the output DTCs Click here.

    16. Finish diagnostic mode.


  5. CALIBRATION WHEN SERVICING VEHICLE

    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.

  6. STEERING ANGLE SETTING (AFTER PARKING ASSIST ECU IS INITIALIZED)

    Tech Tips

    If the vehicle width extension lines and predicted path lines are not aligned when the steering wheel is centered, or if the predicted path line does not move before the steering wheel is fully turned to either the left or right, adjust the steering angle settings.


    1. Center the steering wheel and stop the vehicle.

    2. Start diagnostic mode.


      Note

      Be sure to apply the parking brake, depress the brake pedal and move the shift lever to P before adjusting the steering angle settings. The steering angle settings need to be adjusted while the engine is stopped.


      1. A0096T7

        Select "Function Check/Setting" on the Service Menu screen.

      2. A00951Z

        Select "Camera Setting" on the Function Check/Setting screen.

      3. A009ATT

        Select "STEERING ANGLE SETTING" on the MODE SETTING screen.

        Tech Tips

        To select a grayed out item, select and hold the item for 2 seconds or more.

      4. A009B55

        Select "NEXT" on the SIGNAL CHECK screen to display the STEERING ANGLE SETTING screen.

        Note


        • When "CHK" (red) is displayed for any items on the SIGNAL CHECK screen, selecting "NEXT" will not change the screen to the STEERING ANGLE SETTING screen.

        • When "CHK" is displayed for any items on the SIGNAL CHECK screen, perform inspections using the SIGNAL CHECK screen.

    3. A0093ZF

      Steering angle setting


      1. Check that the steering wheel is centered (approximately +/-5 degrees or less) and select "STEERING CENTER MEMORIZE".

      2. After the centered steering position is memorized, turn the steering wheel to the left and then the right full lock positions and select "MAX STEERING ANGLE MEMORIZE" or "OK".

        Tech Tips

        It is also possible to start by initially turning the steering wheel to the right side.

      3. Select "MAX STEERING ANGLE MEMORIZE" or "OK" to store the steering angle adjustment value and change the screen to the MODE SETTING screen.

        Tech Tips


        • When "MAX STEERING ANGLE MEMORIZE" or "OK" is selected, a beep will sound to confirm that the steering angle adjustment values have been stored.

        • The adjustment values will not be stored unless "MAX STEERING ANGLE MEMORIZE" or "OK" is selected.

        • When "BACK" is selected, the screen changes to SIGNAL CHECK without storing the set values.

        • If the steering angle settings have not been adjusted, selecting "MAX STEERING ANGLE MEMORIZE" or "OK" will not cause the adjustment values to be stored.

        • Even if no DTCs are stored, selecting "MAX STEERING ANGLE MEMORIZE" or "OK" may not cause the adjustment value to be stored if the steering sensor is malfunctioning.

        • If selecting "MAX STEERING ANGLE MEMORIZE" or "OK" does not cause the adjustment value to be stored after adjusting the steering angle, replace the spiral cable sub-assembly Click here.

    4. Finish diagnostic mode.


    5. Confirm steering angle adjustment.

      Tech Tips

      If the steering angle has been adjusted, confirm the steering angle adjustment on the parking assist monitor screen after finishing diagnosis mode.


      1. Check on the parking assist screen that the predicted path line moves until the steering wheel is fully turned to either the left or right.

        Tech Tips

        If the predicted path line stops moving before the steering wheel is fully turned to either the left or right, the steering angle adjustment values have not been stored correctly. In this case, perform "STEERING CENTER MEMORIZE" and "MAX STEERING ANGLE MEMORIZE" again.