Multi-Terrain Monitor System System Description

This system has front, passenger side, driver side and rear television camera assemblies mounted around the vehicle to display around the vehicle on the multi-display assembly*1 or radio and display receiver assembly*2. 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.

1. *1: for Multi-media Module Receiver Type
   
2. *2: for Radio and Display Type
   

This system consists of the following components:

1. Parking assist ECU
   

2. Main switch assembly (multi-terrain monitor main switch)
   

3. Rear television camera assembly
   

4. Front television camera assembly
   

5. Side television camera assembly LH
   

6. Side television camera assembly RH
   

7. Multi-media module receiver assembly*1
   

8. Multi-display assembly*1
   

9. Radio and display receiver assembly*2
   

10. Spiral with sensor cable sub-assembly
    

11. Brake actuator assembly (skid control ECU)
    

12. Main body ECU (multiplex network body ECU)
    

13. Clearance warning ECU assembly
    

14. ECM
    

15. Steering control ECU
    

16. 4WD control ECU
    

17. Airbag sensor assembly
    

18. Blind spot monitor sensor LH*3
    

    1. *1: for Multi-media Module Receiver Type
       
    2. *2: for Radio and Display Type
       
    3. *3: w/ Blind Spot Monitor System
       

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.

The parking assist ECU controls the system by using information from the following components.

1. *1: for Multi-media Module Receiver Type
   
2. *2: for Radio and Display Type
   
3. *3: w/ Blind Spot Monitor System
   

Panoramic view and wide front view screen

Two-side view screen description

Panoramic view and rear view screen

HINT:

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.

Rear view screen

HINT:

The screen changes to the panoramic view and rear view screen when the display mode switch button or rear view screen is selected.

Side view screen

HINT:

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.

Manual display mode

1. When the main switch assembly (multi-terrain monitor main switch) is pressed with the engine switch on (IG) or the engine started, the multi-terrain monitor system switches to a screen shown below according to the shift lever position
   

   
   
   
   
   

   Text in Illustration

   *a	Shift lever not in P or R	*b	Shift lever in R
   *c	Panoramic view and wide front view screen	*d	Two-side view screen
   *e	Navigation screen, etc.	*f	Panoramic view and rear view screen
   *g	Wide rear view screen	-	-

   
   

   Screen Transition Conditions

   No.	Screen Transition Conditions
   (1)	Main switch assembly (multi-terrain monitor main 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)	"MAP/VOICE" switches, etc. on the multi-display are pressed
   (6)	Shift lever is moved to P
   (7)	Switch image mode button or rear view screen is selected
   (8)	Switch image mode button or wide rear view screen is selected

   HINT:

   If the panoramic view monitor main 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)

1. When the shift lever is not in P or R, in addition to switching screens by pressing the No. 2 combination switch assembly (panoramic view monitor main switch), the automatic display mode can be selected by pressing the automatic display mode switching button.
   

   
   
   
   
   

   Text in Illustration

   *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

   HINT:

   1. In the automatic display mode, press the main switch assembly (multi-terrain monitor main switch) or panel switch to switch screens in the same way as the manual display mode.
      
   2. 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 engine switch is turned from off to on (IG).
      




2. The automatic display mode automatically switches the display according to the vehicle status.
   

   
   
   
   
   

   Text in Illustration

   *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.

   
   

   Screen Transition Conditions (Automatic Display Mode)

   No.	Screen Transition Conditions
   (1)	Main switch assembly (multi-terrain monitor main 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)

   1. *: The panoramic view and wide front view screen is the first screen displayed after the engine switch was turned off.
      

When the outer rear view mirror assembly is retracted

1. When the outer rear view mirrors are retracted, the screen changes according to the current screen display, as follows.
   

   
   
   
   
   

   Text in Illustration

   *a	Panoramic view and wide front view screen	*b	Panoramic view and rear view screen
   *c	Two side view screen (Outer rear view mirror assembly is extracted)	*d	Side view and wide front view screen
   *e	Side view and rear view screen	*f	Two side view screen (Outer rear view mirror assembly is retracted)

   
   

   Screen Transition Conditions

   No.	Screen Transition Conditions
   (1)	When outer rear view mirror assembly is retracted

Manual display mode

1. When the shift lever is moved to R, the screen switches depending on the previously displayed screen.
   

   
   
   
   
   

   Text in Illustration

   *a	Shift lever in R	*b	Front view and two-side view screen
   *c	Rear view and two-side view screen	*d	Wide rear view screen
   *e	Navigation screen, etc.	*f	Display mode switching button

   
   

   Screen Transition Conditions

   No.	Screen Transition Conditions
   (1)	Shift lever is moved to R and main switch assembly (multi-terrain monitor main switch) is pressed
   (2)	Shift lever is moved to R (ended with display of screen other than wide rear view screen previously)
   (3)	Shift lever is moved to R (ended with display of wide rear view screen previously)
   (4)	Shift lever is moved to P
   (5)	Physical switches of multi-display are operated
   (6)	Shift lever is moved to other than P or R
   (7)	Main switch assembly (multi-terrain monitor main switch) is pressed
   (8)	Display mode switching button is pressed
   (9)	Vehicle speed changes to approximately 12 km/h or more

Auto display mode

1. The automatic display mode automatically switches the display according to the vehicle status.
   

   
   
   
   
   

   Text in Illustration

   *a	Navigation screen, etc.	*b	Front view and two-side view screen
   *c	Front view and side view front tires screen	*d	Under floor view and side view screen
   *e	Under floor view and side view front tires screen	*f	Under floor view switching button

   
   

   Screen Transition Conditions

   No.	Screen Transition Conditions
   (1)	Shift lever is moved to position other than R and main switch assembly (multi-terrain monitor main switch) is pressed (did not end with display of front view and side view front tires screen previously)
   (2)	Shift lever is moved to position other than R and main switch assembly (multi-terrain monitor main switch) is pressed (ended with display of front view and side view front tires screen previously)
   (3)	Front view screen is touched
   (4)	Side view screen is touched
   (5)	Main switch assembly (multi-terrain monitor main switch) is pressed
   (6)	Under floor view switching button is pressed when vehicle is parked and vehicle position can be estimated
   (7)	Vehicle speed is approximately 5 km/h (3 mph) or less and vehicle position cannot be estimated or under floor view switching button is pressed

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.

HINT:

The steering angle sensor signal is used to control parking assist only for estimated guide line mode.

CAN communication system

1. The multi-terrain monitor system uses CAN communication for data communication between the parking assist ECU and other ECUs and between the parking assist ECU and each camera.
   

2. If a problem occurs in the CAN communication line, the parking assist ECU outputs a CAN communication malfunction DTC. (To check, use the GTS.) (Click here)
   

3. 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.)
   

   1. for LHD with Central Gateway ECU: Click here
      
   2. for RHD with Central Gateway ECU: Click here
      

4. If a CAN communication line malfunction DTC is output, repair the malfunction in the communication line and troubleshoot the multi-terrain monitor system when data communication is normal.
   

5. 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

1. The multi-terrain monitor system uses the AVC-LAN to communicate with other equipment.
   

2. The master device for the AVC-LAN is the multi-media module receiver assembly.
   

3. Resistance necessary for communication transfer (60 to 80 Ω between the TX+ - TX- terminals) is inside the multi-media module receiver assembly.
   

4. 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 multi-terrain monitor system and navigation system do not operate normally.
   

Video signal circuit

1. Video signals from the front television camera assembly are input into the parking assist ECU via analog communication lines (vehicle wire harness).
   

2. Video signals from the side television camera assembly LH are input into the parking assist ECU via analog communication lines (vehicle wire harness).
   

3. Video signals from the side television camera assembly RH are input into the parking assist ECU via analog communication lines (vehicle wire harness).
   

4. Video signals from the rear television camera assembly are input into the parking assist ECU via analog communication lines (vehicle wire harness).
   

5. Video signals from the parking assist ECU are input into the multi-display assembly via GVIF cable.*1
   

6. Video signals from the parking assist ECU are input into the radio and display receiver assembly via AVC-LAN.*2
   

Screen display

1. Video signals input from each camera are processed in the parking assist ECU and displayed on the multi-display assembly*1 or radio and display receiver assembly*2 as the multi-terrain monitor system screen.
   

This multi-terrain monitor system has a diagnostic function displayed in the multi-media module receiver assembly*1 or radio and display receiver assembly*2. This function enables the calibration (adjustment and verification) of the multi-terrain monitor system.

1. *1: for Multi-media Module Receiver Type
   
2. *2: for Radio and Display Type
   

The multi-terrain monitor system can check the following items by using the GTS.

Use the multi-terrain monitor system diagnosis screen for calibration and checking of the multi-terrain monitor system (Click here).

NOTICE:

Part replacement and work performed during servicing may require calibration of the multi-terrain monitor system and other systems (Click here).