GENERAL
This system has front, passenger side, driver side and television camera assemblies mounted around the vehicle to display around the vehicle on the multi-display. The display panel also shows a composite view consisting of the area behind the vehicle and parking guidelines to assist the driver in parking the vehicle by monitoring the area around the vehicle.
This system consists of the following components:
Parking assist ECU
Panoramic view monitor switch
Television camera assembly
Front television camera assembly
Side television camera assembly LH
Side television camera assembly RH
Navigation receiver assembly*1
Radio and display receiver assembly*2
Network gateway ECU
Steering Sensor
Skid control ECU
Main body ECU (multiplex network body ECU)
Clearance warning ECU assembly
ECM
Blind spot monitor sensor LH
*1: for Navigation Receiver Type
*2: for Radio and Display Type
This system is equipped with a self-diagnosis system, which is operated from a designated window that appears on the display panel, just as in the navigation system.
FUNCTION OF COMPONENTS
The parking assist ECU controls the system by using information from the following components.
| Item | Function |
|---|---|
| Television Camera Assembly |
|
| Front Television Camera Assembly | Generates a video feed showing the front side of the vehicle and transmits the video to the parking assist ECU |
| Side Television Camera Assembly LH | Generates a video feed showing the left side of the vehicle and transmits the video to the parking assist ECU |
| Side Television Camera Assembly RH | Generates a video feed showing the right side of the vehicle and transmits the video to the parking assist ECU |
| Parking Assist ECU |
|
| Panoramic View Monitor Switch | Transmits switch operation signals to the parking assist ECU |
|
Allows operations when the panoramic view monitor screen or diagnosis screen is displayed |
| Steering Sensor | Transmits the steering angle signals and sensor status signals to the parking assist ECU via the CAN communication |
| Skid Control ECU | Transmits the vehicle speed signals, drive type signals, and system status signals to the parking assist ECU via the CAN communication |
| ECM |
|
| Main Body ECU (Multiplex Network Body ECU) |
|
| Clearance Warning ECU Assembly | Transmits information from each sonar via the CAN communication |
| Blind Spot Monitor Sensor LH | Transmits the RCTA information signal via CAN communication |
*1: for Navigation Receiver Type
*2: for Radio and Display Type
Panoramic View Screen Display
See-through view screen
The entire area surrounding the vehicle is displayed.
| *a | Vehicle interior view | *b | Upper view |
Moving view screen
The entire area surrounding the vehicle is displayed.
| *a | Slant upper view | *b | Upper view |
Panoramic view and wide front view screen
| *a | Estimated course line display mode | *b | Distance guide line display mode |
| Signal | Name | Color | Panoramic View and Wide Front View Screen | |
|---|---|---|---|---|
| Estimated course line display mode | Distance guide line display mode | |||
| (1) | Front distance guide line | Blue | Displayed | Displayed |
| (2) | Front wheel ground contact line | Yellow | Displayed | Not displayed |
Two-side view screen description
| *a | Outer rear view mirror not retracted | *b | Outer rear view mirror retracted |
| Signal | Name | Color |
|---|---|---|
| (1) | Front distance guide line | Red/Black |
| (2) | Front wheel ground contact line | Blue |
| (3) | Vehicle width parallel line | Blue |
Panoramic view and rear view screen
| *a | Estimated course line display mode | *b | Parking guide line display mode |
| *c | Distance guide line display mode | *d | Guide line display mode switching button |
Tech Tips
In the rear view screen, the screen display mode can be switched by pressing the guide line display mode switching button or rear view screen on the screen.
| Signal | Name | Color | Panoramic View and Rear View Screen | ||
|---|---|---|---|---|---|
| Estimated course line display mode | Parking guide line display mode | Distance guide line display mode | |||
| (1) | Front distance guide line | Blue | Displayed | Displayed | Displayed |
| (2) | Rear distance guide line | Red/Black | Displayed | Displayed | Displayed |
| (3) | Rear vehicle width extension line | Blue | Displayed | Displayed | Not displayed |
| (4) | Parking guide line | Blue | Not displayed | Displayed | Not displayed |
| (5) | Rear distance guide line | Blue | Displayed | Not displayed | Not displayed |
| (6) | Side estimated course line | Yellow | Displayed | Not displayed | Not displayed |
| (7) | Rear estimated course line | Yellow | Displayed | Not displayed | Not displayed |
| (8) | Vehicle center line | Blue | Displayed | Displayed | Not displayed |
Wide rear view screen
| *a | Estimated course line display mode | *b | Parking guide line display mode |
| *c | Distance guide line display mode | *d | Display mode switching button |
Tech Tips
The screen changes to the panoramic view and rear view screen when the display mode switch button or rear view screen is selected.
| Signal | Name | Color | Rear View Screen | ||
|---|---|---|---|---|---|
| Estimated course line display mode | Parking guide line display mode | Distance guide line display mode | |||
| (1) | Rear distance guide line | Red/Black | Displayed | Displayed | Displayed |
| (2) | Rear vehicle width extension line | Blue | Displayed | Displayed | Not displayed |
| (3) | Parking guide line | Blue | Not displayed | Displayed | Not displayed |
| (4) | Rear distance guide line | Blue | Displayed | Not displayed | Not displayed |
| (5) | Rear estimated course line | Yellow | Displayed | Not displayed | Not displayed |
| (6) | Vehicle center line | Blue | Displayed | Displayed | Not displayed |
Narrow rear view screen
| *a | Estimated course line display mode | *b | Parking guide line display mode |
| *c | Distance guide line display mode | *d | Display mode switching button |
Tech Tips
The screen changes to the panoramic view and rear view screen when the display mode switch button or rear view screen is selected.
| Signal | Name | Color | Rear View Screen | ||
|---|---|---|---|---|---|
| Estimated course line display mode | Parking guide line display mode | Distance guide line display mode | |||
| (1) | Rear distance guide line | Red/Black | Displayed | Displayed | Displayed |
| (2) | Rear vehicle width extension line | Blue | Displayed | Displayed | Not displayed |
| (3) | Parking guide line | Blue | Not displayed | Displayed | Not displayed |
| (4) | Rear distance guide line | Blue | Displayed | Not displayed | Not displayed |
| (5) | Rear estimated course line | Yellow | Displayed | Not displayed | Not displayed |
| (6) | Vehicle center line | Blue | Displayed | Displayed | Not displayed |
Side view screen
| *a | Side view and wide front view screen | *b | Side view and rear view screen |
| Signal | Name | Color |
|---|---|---|
| (1) | Front distance guide line | Red |
| (2) | Front wheel ground contact line | Blue |
| (3) | Rear wheel ground contact line | Blue |
| (4) | Vehicle width parallel line | Blue |
Tech Tips
Refer to the content of panoramic view and rear view screen and panoramic view and wide front view screen for information about the rear view and wide front view screens.
Panoramic View Screen Description
Manual display mode
When the panoramic view monitor switch is pressed with the ignition switch ON or the engine started, the panoramic view monitor system switches to a screen shown below according to the shift lever position
Figure 1. Screen Transition Chart (Manual Display Mode)
| *a | Shift lever not in P or R | *b | Shift lever in P and TOYOTA parking assist-sensor system on |
| *c | Shift lever in R | *d | Panoramic view and wide front view screen |
| *e | Two-side view screen | *f | Navigation screen, etc. |
| *g | See-through view screen | *h | Moving view screen |
| *i | Panoramic view and rear view screen | *j | Wide rear view screen |
| *k | Narrow rear view screen | - | - |
| No. | Screen Transition Conditions |
|---|---|
| (1) | Panoramic view monitor switch is pressed |
| (2) | Shift lever is moved to R |
| (3) | Shift lever is moved to other than P or R |
| (4) | Shift lever is moved to other than P or R and operation (1) is performed |
| (5) | "HOME" switches, etc. on the multi-display are pressed |
| (6) | Operation (1) is performed with the shift lever in P |
| (7) | Shift lever is moved to P |
| (8) | Switch image mode button or rear view screen is selected |
| (9) | Switch image mode button or wide rear view screen is selected |
| (10) | Switch image mode button or narrow rear view screen is selected |
| (11) | See through view switch button is selected |
| (12) | Moving view switch button is selected |
Tech Tips
If the panoramic view monitor switch is pressed at a vehicle speed of approximately 20 km/h (12 mph) or lower, the panoramic view monitor system screen is displayed. If the vehicle speed exceeds approximately 20 km/h (12 mph), the display switches to the navigation screen or information settings screen.
Screen transition chart (automatic display mode)
When the shift lever is not in P or R, in addition to switching screens by pressing the panoramic view monitor switch, the automatic display mode can be selected by pressing the automatic display mode switching button.
| *a | Panoramic view and wide front view screen | *b | Two-side view screen |
| *c | Automatic display mode | - | - |
| Automatic Display Mode Switching Button (Indicator in Button) |
Screen Switching Mode |
|---|---|
| ON (Illuminated) |
Automatic display mode |
| OFF (Not illuminated) |
Manual display mode |
Tech Tips
In the automatic display mode, press the panoramic view monitor switch or panel switch to switch screens in the same way as the manual display mode.
When switching to the navigation screen, etc. in the automatic display mode, the display switches to the screen that was displayed last. However, the display switches to the panoramic view and wide front view screen if the shift lever is not in P or R after the ignition switch is turned from off to ON.
The automatic display mode automatically switches the display according to the vehicle status.
Figure 2. Screen Transition Chart (Automatic Display Mode)
| *a | Shift lever not in P or R | *b | Panoramic view and wide front view screen |
| *c | Two-side view screen | *d | Navigation screen, etc. |
| No. | Screen Transition Conditions |
|---|---|
| (1) | Panoramic view monitor switch is pressed |
| (2) | Current location switches, etc. on the multi-display are pressed |
| (3) | Vehicle speed changes from above approximately 10 km/h (6 mph) to approximately 10 km/h (6 mph) or lower. The screen that was last displayed is displayed on the multi-display* |
| (4) | Vehicle speed changes from approximately 12 km/h (7 mph) or lower to above approximately 12 km/h (7 mph) |
*: The panoramic view and wide front view screen is the first screen displayed after the ignition switch was turned off.
Panoramic View Zoom Function
When detail within the image on the panoramic view screen is too small and difficult to see, the user can magnify the image by selecting one of the 4 areas on the panoramic view screen.
Figure 3. Screen Transition
| *a | Panoramic view and wide front view screen displayed while shift lever is not in P or R | *b | Panoramic view and rear view screen displayed |
| *c | Panoramic view and wide front view screen | *d | Panoramic view and wide front view screen (Front left view magnified) |
| *e | Panoramic view screen | *f | Panoramic view and rear view screen |
| *g | Panoramic view and rear view screen (Front left view magnified) | - | - |
| No. | Screen Transition Conditions |
|---|---|
| (1) | Any of the 4 areas on the panoramic view screen is selected while the vehicle speed is approximately 12 km/h (7 mph) or less and the Toyota parking assist-sensor system is turned on. |
| (2) | The remote touch switch is pressed on the panoramic view zoom screen, or either of the following conditions is met:
|
When the outer rear view mirror assembly is retracted
When the outer rear view mirrors are retracted, the screen changes according to the current screen display, as follows.
Figure 4. Screen Transition
| *a | See through view screen | *b | Moving view screen |
| *c | Panoramic view and wide front view screen | *d | Panoramic view and rear view screen |
| *e | Two side view screen (Outer rear view mirror assembly is extracted) | *f | Side view and wide front view screen |
| *g | Side view and rear view screen | *h | Two side view screen (Outer rear view mirror assembly is retracted) |
| No. | Screen Transition Conditions |
|---|---|
| (1) | When outer rear view mirror assembly is retracted |
OPERATION EXPLANATION
The reverse position signal is sent from the shift lever position switch to the parking assist ECU when the shift lever is moved to R.
An appropriate steering angle and timing information can be provided for the driver. This is based on the information from the steering angle sensor signal and the vehicle angle data signal that are sent to the parking assist ECU.
Tech Tips
The steering angle sensor signal is used to control parking assist only for estimated guide line mode.
COMMUNICATION SYSTEM OUTLINE
CAN communication system
The panoramic view monitor system uses CAN communication for data communications between the parking assist ECU and each ECU.
If a problem occurs in the CAN communication line, the parking assist ECU outputs a CAN communication malfunction DTC. (To check, use the GTS.)
If a problem occurs in the CAN communication line, the parking assist ECU outputs a CAN communication malfunction DTC. (To check, use the multi-display diagnosis screen.)
If a CAN communication line malfunction DTC is output, repair the malfunction in the communication line and troubleshoot the panoramic view monitor system when data communication is normal.
Since the CAN communication line has its own length and route, it cannot be repaired temporarily with a bypass wire, etc.
AVC-LAN communication system
The panoramic view monitor system uses the AVC-LAN to communicate with other equipment.
The master device for the AVC-LAN is the navigation receiver assembly*1 or radio and display receiver assembly*2
Resistance necessary for communication transfer (60 to 80 Ω between the TX+ - TX- terminals) is inside the navigation receiver assembly*1 or radio and display receiver assembly*2
*1: for Navigation Receiver Type
*2: for Radio and Display Type
If a malfunction such as a communication line short, +B short, or GND short occurs in the AVC-LAN circuit, communication is interrupted and the panoramic view monitor system and navigation system do not operate normally.
VIDEO SIGNALS
Video signal circuit
Video signals from the front television camera assembly are input into the parking assist ECU via analog communication lines (vehicle wire harness).
Video signals from the side television camera assembly LH are input into the parking assist ECU via analog communication lines (vehicle wire harness).
Video signals from the side television camera assembly RH are input into the parking assist ECU via analog communication lines (vehicle wire harness).
Video signals from the television camera assembly are input into the parking assist ECU via analog communication lines (vehicle wire harness).
Video signals from the parking assist ECU are input into the navigation receiver assembly*1 or radio and display receiver assembly*2 via AVC-LAN communication line.
*1: for Navigation Receiver Type
*2: for Radio and Display Type
Screen display
Video signals input from each camera are processed in the parking assist ECU and displayed on the navigation receiver assembly*1 or radio and display receiver assembly*2 as the panoramic view monitor system screen.
*1: for Navigation Receiver Type
*2: for Radio and Display Type
DIAGNOSTIC FUNCTION OUTLINE
This panoramic view monitor system has a diagnostic function displayed in the navigation receiver assembly*1 or radio and display receiver assembly*2. This function enables the calibration (adjustment and verification) of the panoramic view monitor system.
*1: for Navigation Receiver Type
*2: for Radio and Display Type
The panoramic view monitor system can check the following items by using the GTS.
| Item | Proceed to |
|---|---|
| DTC | |
| Data List / Active Test |
CALIBRATION
Use the panoramic view monitor system diagnosis screen for calibration and checking of the panoramic view monitor system.
Note
Part replacement and work performed during servicing may require calibration of the panoramic view monitor system and other systems.