Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - PARK ASSIST / MONITORING
WIDE VIEW FRONT MONITOR SYSTEM - SYSTEM DESCRIPTION
| GENERAL |
This system has a front television camera assembly to display the front view of the vehicle on the multi-display assembly.
This system consists of the following components:
Parking assist ECU
Front television camera assembly
Multi-media module receiver assembly
Steering sensor
Steering control ECU*
Master cylinder solenoid (skid control ECU assembly)
Four wheel drive control ECU
ECM
Front and side monitor main switch assembly
Multi-display assembly
This system is equipped with a self-diagnosis system, which is operated on 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 |
| Front Television Camera Assembly | Generates a video feed showing the front side of the vehicle and transmits the video to the parking assist ECU. |
| Front and Side Monitor Main Switch Assembly | Operating the switch sends a signal to the parking assist ECU. |
| Parking Assist ECU | Turns the side television camera assembly on or off based on parameters such as the display settings, the front and side monitor main switch signal, the shift signal and the vehicle speed signal. Transmits the wide view front and side monitor, side monitor, or wide view front monitor signals to the multi-media module receiver assembly based on parameters such as the display settings, the front and side monitor main switch signal, the shift signal and the vehicle speed signal. Depending on the display settings, renders the output display for the wide view front and side monitor, the side monitor, or the wide view front monitor, and outputs them to the screen of the multi-display assembly. Renders each configuration page in the diagnosis window and outputs the screen to the multi-display assembly. |
| Multi-media Module Receiver Assembly | Communicates with the parking assist ECU through AVC-LAN communication. |
| Multi-display Assembly | This touch panel display is used to view and interact with the wide view front and side monitor, side view monitor, wide view front monitor, and diagnosis screens. |
| Steering Sensor | Detects the angle of the steering wheel and sends the resulting signals to the parking assist ECU through CAN communication. |
| Steering Control ECU* | Sends the VGRS relative angle and vehicle condition to the parking assist ECU through CAN communication. |
| Master Cylinder Solenoid (Skid Control ECU Assembly) | Sends the inner brake information and ABS ACT information to the parking assist ECU through CAN communication. |
| Four Wheel Drive Control ECU | Sends the L4 condition signal to the parking assist ECU through CAN communication. |
| ECM | Sends the vehicle condition, 2WD/4WD information and shift position information to the parking assist ECU through CAN communication. |
| OPERATION EXPLANATION |
The front and side monitor main switch ON signal is sent from the main switch to the parking assist ECU.
After receiving the front and side monitor main switch ON signal, the parking assist ECU switches the display signal for the multi-display assembly from the navigation system to the wide view front monitor system.
| DISPLAY CONDITIONS FOR FRONT MONITOR DISPLAY |
Screen display operation
| *A | for LHD | *B | for RHD |
| *1 | Wide View Front and Side Monitor Screen | *2 | Course guideline display change switch |
| *3 | Automatic display mode set/cancel switch (Illustration shows automatic display mode off) | - | - |
After the display conditions are met when the wide view front and side monitor systems are normally functioning, if the screen is changed from the manual display mode or automatic display mode screen, the wide view front and side monitor screen (H4 mode) or wide view front monitor screen (L4 mode) is displayed as the initial screen.
- HINT:
| Automatic mode display switch (Indicator in the button) | Display mode |
| ON (Illuminated) | Automatic display mode |
| OFF (Not illuminated) | Manual display mode |
Display conditions for manual display mode
H4 mode:
During manual display mode (shift lever in a position other than R), during engine switch on (IG) or engine startup (no DTCs are output), if the following conditions have been met, pressing the front and side monitor main switch will change the display mode as follows
| Automatic Mode Display Switch | Multi-display Screen | Shift Lever Position | Vehicle Speed | Screen (changes due to front and side monitor main switch assembly operation) |
| OFF | Navigation screen or information setting screen | Other than R | 12 km/h (7.5 mph) or less | Navigation screen or information setting screen → Wide view front and side monitor screen → Front side monitor screen → Rear side monitor screen → Wide view front and side monitor screen |
| R position | 0 km/h (0 mph) | Navigation screen or information setting screen → Parking assist monitor screen → Wide view front and side monitor screen → Front side monitor screen → Rear side monitor screen → Parking assist monitor screen |
L4 mode:
During manual display mode (shift lever in a position other than R), during engine switch on (IG) or engine startup (no DTCs are output), if the following conditions have been met, pressing the front and side monitor main switch will change the display mode as follows
| Automatic Mode Display Switch | Multi-display Screen | Shift Lever Position | Vehicle Speed | Screen (changes due to front and side monitor main switch assembly operation) |
| OFF | Navigation screen or information setting screen | Other than R | 12 km/h (7.5 mph) or less | Navigation screen or information setting screen → Wide view front monitor screen → Front side monitor screen → Rear side monitor screen → Wide view front monitor screen |
| R position | 0 km/h (0 mph) | Navigation screen or information setting screen → Parking assist monitor screen → Wide view front and side monitor screen → Front side monitor screen → Rear side monitor screen → Parking assist monitor screen |
Screen display timer function
During manual display mode (when the shift lever is not in R), when the front and side monitor main switch is pressed and the following conditions are met, the wide view front and side monitor screen is displayed for a certain period of time even when the vehicle speed is more than 12 km/h (7.5 mph).
| Screen Display Time | Time when Front and Side Monitor Main Switch Assembly is Pressed | Change in Vehicle Speed | Timer Operation Time | Note |
| A B | 12 km/h (7.5 mph) or less | 12 km/h (7.5 mph) or less | 8 seconds | When the front and side monitor main switch assembly is pressed with the vehicle speed at 12 km/h (7.5 mph) or less, the camera screen is displayed for 8 seconds from the moment the switch is pressed. After this, if the vehicle speed increases to above 12 km/h (7.5 mph), the camera screen is not displayed. |
| C | More than 12 km/h (7.5 mph) | More than 12 km/h (7.5 mph) | 8 seconds or 4 minutes and 30 seconds | When the front and side monitor main switch assembly is pressed while the vehicle speed is more than 12 km/h (7.5 mph), the camera screen is displayed for 4 minutes and 30 seconds the moment the switch is pressed (when the vehicle speed is more than 12 km/h (7.5 mph) after 4 minutes and 30 seconds elapse from the time the switch is pressed). |
| D | More than 12 km/h (7.5 mph) | More than 12 km/h (7.5 mph) → 12 km/h (7.5 mph) or less → More than 12 km/h (7.5 mph) | 8 seconds or 4 minutes and 30 seconds | When the front and side monitor main switch assembly is pressed while the vehicle speed is more than 12 km/h (7.5 mph), the screen display timer operates and the camera screen is displayed. However, after the vehicle speed decreases to 12 km/h (7.5 mph) or less within 4 minutes and 30 seconds (after 8 seconds have elapsed), if the vehicle speed increases to more than 12 km/h (7.5 mph) again, the screen switches to the navigation or information setting screen. After the vehicle speed decreases to 12 km/h (7.5 mph) or less within 8 seconds, if the vehicle speed increases to more than 12 km/h (7.5 mph) again, the 4 minutes 30 seconds timer is canceled and the camera screen is displayed for 8 seconds the moment the front and side monitor main switch assembly is pressed. |
| Screen Display Time | Time when Front and Side Monitor Main Switch Assembly is Pressed | Change in Vehicle Speed | Timer Operation Time | Note |
| A B | 12 km/h (7.5 mph) or less | 12 km/h (7.5 mph) or less | 8 seconds | When the front and side monitor main switch assembly is pressed with the vehicle speed at 12 km/h (7.5 mph) or less, the camera screen is displayed for 8 seconds from the moment the switch is pressed. After this, if the vehicle speed increases to above 12 km/h (7.5 mph), the camera screen is not displayed. |
| C | More than 12 km/h (7.5 mph) | More than 12 km/h (7.5 mph) | 8 seconds or 4 minutes and 30 seconds | When the front and side monitor main switch assembly is pressed while the vehicle speed is more than 12 km/h (7.5 mph), the camera screen is displayed for 4 minutes and 30 seconds the moment the switch is pressed (when the vehicle speed is more than 12 km/h (7.5 mph) after 4 minutes and 30 seconds elapse from the time the switch is pressed). |
| D | More than 12 km/h (7.5 mph) | More than 12 km/h (7.5 mph) → 12 km/h (7.5 mph) or less → More than 12 km/h (7.5 mph) | 8 seconds or 4 minutes and 30 seconds | When the front and side monitor main switch assembly is pressed while the vehicle speed is more than 12 km/h (7.5 mph), the screen display timer operates and the camera screen is displayed. However, after the vehicle speed decreases to 12 km/h (7.5 mph) or less within 4 minutes and 30 seconds (after 8 seconds have elapsed), if the vehicle speed increases to more than 12 km/h (7.5 mph) again, the screen switches to the navigation or information setting screen. After the vehicle speed decreases to 12 km/h (7.5 mph) or less within 8 seconds, if the vehicle speed increases to more than 12 km/h (7.5 mph) again, the 4 minutes 30 seconds timer is canceled and the camera screen is displayed for 8 seconds the moment the front and side monitor main switch assembly is pressed. |
| E F G | More than 12 km/h (7.5 mph) | More than 12 km/h (7.5 mph) | 8 seconds | If the vehicle speed is more than 12 km/h (7.5 mph), the camera screen is displayed for 8 seconds. After that, the camera screen is not displayed. The timer is canceled the moment the vehicle speed decreases to below 12 km/h (7.5 mph) during the 8 second timer. |
Display conditions for automatic display mode
In automatic display mode, the screen display is automatically displayed according to driving conditions when the following conditions are met and the wide view front and side monitor systems are normally operating.
| Vehicle Condition | Multi-display Assembly Display Screen | Shift Lever | Vehicle Speed | Display Screen |
| Stopped → Driving | Navigation screen or information setting screen | Not in P or R | 12 km/h (7.5 mph) or less | Navigation screen or information setting screen → Wide view front monitor and side monitor screen* |
| Driving → Stopped | Not in P or R | 10 km/h (6.2 mph) or less | Navigation screen or information setting screen → Wide view front monitor and side monitor screen* |
Off-road turn assist function
With the off-road turn assist function on, the path traveled is displayed as dotted lines on the front screen. In this state, the vehicle may not move exactly as the front lines indicate. (The lines indicate the direction the front wheels are turned. However, with the off-road assist function on, the vehicle turns using a difference in drive force between the left and right wheels.)
| *a | Line Indicating Travel Path |
| COMMUNICATION SYSTEM OUTLINE |
The components of the wide view front monitor system communicate with each other through the AVC-LAN. If a short circuit or open circuit occurs in the AVC-LAN, communication is interrupted and the front monitor system will stop functioning.
| DIAGNOSTIC FUNCTION OUTLINE |
This wide view front monitor system has a diagnostic function displayed in the display and navigation module display. This function enables the calibration (adjustment and confirmation) of the system ().
The system can check the following items by using the intelligent tester.
| Item | Proceed to |
| DTC |