Diagnosis System [09/2020 - ]

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2024 Lexus IS 500, 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 500, and 2023 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

PANORAMIC VIEW MONITOR DIAGNOSIS SYSTEM
1. For panoramic view monitor system diagnosis, signals received by the parking assist ECU can be checked, and the panoramic view monitor system can be calibrated, adjusted and checked using the radio receiver assembly.
  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 panoramic view monitor system may be needed.
  
  Refer to CALIBRATION [09/2020 - ]
  
  HINT:
  
  The displayed screens and items may differ depending on vehicle specifications.
DIAGNOSIS SCREEN TRANSITION (VIEW ADJUSTMENT)

Fig 1: Diagnosis Screen Transition (View Adjustment)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DIAGNOSIS SCREEN TRANSITION (STEERING ANGLE SETTING)

Fig 2: (STEERING ANGLE SETTING)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DIAGNOSIS SCREEN TRANSITION (BACK CAMERA SETTING)

Fig 3: Diagnosis Screen Transition (Back Camera Setting - 1 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Diagnosis Screen Transition (Back Camera Setting - 2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DIAGNOSIS SCREEN TRANSITION (CAMERA CHECK)

Fig 5: (CAMERA CHECK)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DIAGNOSIS SCREEN TRANSITION (DIAG CHECK)

Fig 6: (DIAG CHECK)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DIAGNOSTIC MODE
1. Diagnostic mode
  w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]
  
  w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]
2. Failure diagnosis
  w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]
  
  w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]
3. System check (check using system check mode screen)
  w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]
  
  w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]
4. Finish diagnostic mode
  w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]
  
  w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]

DIAG CHECK

Start diagnostic mode
w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]

w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]
1. Select "Function Check/Setting" on the "Service Menu" screen to display the "Function Check/Setting I" screen.
  
  Fig 7: Select "Function Check/Setting"
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Select "Camera Setting" on the "Function Check/Setting I" screen.
  NOTE:
  If the "Camera Setting" selection screen is not displayed, turn the ignition switch off and enter the diagnosis screen after turning the ignition switch ON once again.
  
  Fig 8: Select "Camera Setting"
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Select "Diag Check" on the "Mode Setting" screen to display the "Diag Check" screen.
  HINT:
  
  To select a grayed out item, select and hold the item for 2 seconds or more.

Check Diagnosis

On the "Diag Check" screen, DTCs output when the parking assist ECU detects a malfunction can be checked.

Fig 10: "Diag Check" Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Indication Name	Measurement Item	Note
Present Diag Code	Current DTC	DTCs output when the parking assist ECU detects a malfunction
Past Diag Code	Past DTC
PID	PID table	Values based on information displayed on Data List

Finish diagnostic mode
w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]

w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]

SIGNAL CHECK (PARKING ASSIST ECU INPUT SIGNAL)

Start diagnostic mode

w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]

w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]

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

Fig 11: Select "Function Check/Setting"
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

NOTE:

If the "Camera Setting" selection screen is not displayed, turn the ignition switch off and enter the diagnosis screen after turning the ignition switch ON once again.

HINT:

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

Fig 12: Select "Camera Setting"

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

When the screen changes to the "Mode Setting" screen, select "View Adjustment" to display the "Signal Check" screen.
HINT:

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

Fig 13: Select "View Adjustment" To Display The "Signal Check" Screen
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Signal check

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
CAN	Speed signal input	When "CHK" (red) is displayed, selecting "Next" will not change to the next screen.
SHIFT	Reverse signal input
CAMERA SW	Panoramic view monitor switch signal input

HINT:

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".

Fig 14: Select "Next" Button

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CAN inspection
HINT:

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

Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen. [09/2020 - ]
CAMERA SW inspection
1. Check that "OK" (blue) is displayed for "CAMERA SW" and select "OK".
  HINT:
  
  If "CHK" (red) remains displayed or the "CAMERA SW" inspection result is not normal, perform troubleshooting according to the Problem Symptoms Table ("CHK" message(s) are displayed on the "Signal Check" screen).
  
  Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen. [09/2020 - ]
SHIFT inspection
HINT:

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

Refer to "CHK" message(s) are displayed on the SIGNAL CHECK screen. [09/2020 - ]
Finish diagnostic mode
w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]

w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]

CAMERA CHECK

HINT:

Use this function when symptoms such as the camera images not being displayed occur.
On the DTC screen, the 4 camera images are displayed as one image and the images input to the parking assist ECU from the cameras can be checked.

Start diagnostic mode

w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]

w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]

Fig 15: Select "Function Check/Setting"

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Fig 16: Select "Camera Setting"

NOTE:

If the "Camera Setting" selection screen is not displayed, turn the ignition switch off and enter the diagnosis screen after turning the ignition switch ON once again.

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

HINT:

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

Fig 17: Select "View Adjustment" To Display The "Signal Check" Screen

When the screen changes to the "Mode Setting" screen, select "View Adjustment" to display the "Signal Check" screen.
HINT:

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

Check camera images

On the "Camera Check" screen, the images that are input to the parking assist ECU from the 4 cameras are displayed on the screen and the camera images can be checked.

Fig 18: "Camera Check" Screen

Indication Name	Measurement Item	Indication Name	Measurement Item
Front	Front television camera assembly	Back	Rear television camera assembly
Left	Side television camera assembly LH	Right	Side television camera assembly RH

Finish diagnostic mode
w/ Navigation System: Refer to DTC CHECK / CLEAR [09/2020 - ]

w/ Audio and Visual System: Refer to DTC CHECK / CLEAR [09/2020 - ]

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 panoramic view monitor system may be needed.

Refer to CALIBRATION [09/2020 - ]