Accessory Control Display: Description and Operation
AUDIO / VISUAL: ELECTRO MULTI VISION SYSTEM: SYSTEM DIAGRAM
1. MOST Communication Line
2. AVC-LAN Communication Line
3. Others
SYSTEM DESCRIPTION
1. ELECTRO MULTI VISION SYSTEM OUTLINE
(a) The electro multi vision system is provided on vehicles without the navigation system. This system, as with vehicles with the navigation system, provides a touch screen interface for the user to view vehicle information, operate systems such as the air conditioning system and change various settings.
2. MULTI-DISPLAY OUTLINE
(a) Touch switch
Touch switches are touch-sensitive (interactive) switches operated by touching the screen. When a switch is pressed, the outer glass bends in to contact the inner glass at the pressed position. By doing this, the voltage ratio is measured and the pressed position is detected.
3. DVD (Digital Versatile Disc) PLAYER OUTLINE
(a) The DVD player can only play DVD videos, DVD audio and video CDs that have any of the following marks:
(1) Precaution for use of discs
NOTICE:
* PAL or SECAM color television standard discs cannot be played (only NTSC discs can be played).
* Keep the discs away from dirt. Be careful not to damage the discs or leave fingerprints on them.
* Hold discs by the outer edge and center hole with the label side up.
* Leaving the disc exposed halfway out of the slot for a long time after pressing the disc eject button may cause deformation of the disc, making the disc unusable.
* Do not use odd-shaped CDs because these may cause player malfunctions.
* Do not use discs whose recording portion is transparent or translucent because they may not be inserted, ejected or played normally.
* Dual Discs that mate DVD recorded material on one side with CD digital audio material on the other cannot be played.
(b) Cleaning
NOTICE:
Do not use a lens cleaner because it may cause a malfunction in the pickup portion of the player.
(1) If dirt is on the disc surface, wipe it clean with a soft dry cloth such as an eyeglass cleaner for plastic lenses from the inside to the outside in a radial direction.
NOTICE:
* Pressing on the disc by hand or rubbing the disc with a hard cloth may scratch the disc surface.
* Use of solvents such as record spray, antistatic agents, alcohol, benzine, thinners or a chemical cloth may cause damage to the disc, making the disc unusable.
4. "Bluetooth" OUTLINE
(a) "Bluetooth" is a trademark owned by Bluetooth SIG. Inc.
(b) "Bluetooth" is a wireless connection technology that uses the 2.4 GHz frequency band.
HINT
The communication performance of "Bluetooth" may vary depending on obstructions or radio wave conditions between communication devices, electromagnetic radiation, communication device sensitivity or antenna capacity.
(c) Hands-free function
(1) The "Bluetooth" built-in radio receiver and a "Bluetooth" compatible cellular phone*1 can be connected using a "Bluetooth" wireless connection. This enables use of the hands-free function on the cellular phone even if the phone is in a pocket or bag. For this reason, it is not necessary to use a connector or cable to connect the cellular phone.
*1: Some versions of "Bluetooth" compatible cellular phones may not function.
5. COMMUNICATION SYSTEM
(a) MOST Network Outline
(1) Electro multi vision system components communicate with each other via the MOST network.
(2) The MOST network uses a shielded twisted pair of wires for its communication lines.
(3) The master unit of the MOST network is the display and navigation module display.
(4) MOST communication lines connect each slave unit centering around the master unit to form a MOST network ring.
(5) The master unit sends a wake-up signal to activate each slave unit connected to the MOST network.
HINT
If a short or open circuit occurs in the MOST circuit, communication will be interrupted and the system will not operate normally.
(b) AVC-LAN Outline
(1) Components of the electro multi vision system communicate with each other via the AVC-LAN.
(2) The AVC-LAN uses a twisted pair of wires for its communication lines.
(3) The master unit of the AVC-LAN is the display and navigation module display.
HINT
* The display and navigation module display has enough resistance (60 to 80 Ohms) necessary for communication.
* If a short or open circuit occurs in the AVC-LAN circuit, communication is interrupted and the system will not operate normally.
6. DIAGNOSTIC FUNCTION OUTLINE
(a) The electro multi vision system has a diagnostic function (the result will be displayed on the master unit or the Techstream).
7. DIAGNOSIS DISPLAY DETAILED DESCRIPTION
HINT
* This section contains a detailed description of displays in diagnostic mode.
* Illustrations may differ from the actual vehicle screen depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen.
(a) Service Menu Screen
HINT
Each item is grayed out or not displayed based on the device settings.
(b) Failure Diagnosis Screen
HINT
Each item is grayed out or not displayed based on the device settings.
(1) System Check Mode Screen
* *1: Node position number for devices connected to the MOST network.
HINT
MOST node position numbers are provided for devices connected to the MOST network.
* *2: Device Name List No. 1
HINT
* Device Name List No. 1 displays some of the devices that make up the navigation system.
* The names of the components from Device Name List No. 1 are shown in the following table.
* *3: Check Result
HINT
* Result codes for all devices are displayed.
* When "MOST" is displayed for the result, press "MOST" on the multi-display to display the "MOST Line Check" screen.
* *4: Memory Clear
HINT
* Present and history DTCs and registered connected device names are cleared.
* Press the "Memory CLR" switch for 3 seconds.
* *5: Recheck
HINT
* A system check will be performed again after the memory is cleared.
* The "Recheck" switch will dim during a system check.
* *6: Device Name List No. 2
HINT
* Device Name List No. 2 displays some of the devices that make up the electro multi vision system.
* The names of the components from Device Name List No. 2 are shown in the following table.
(2) Unit Check Mode Screen
(3) MOST Line Check Screen
HINT
* The inspection will be performed at the time the screen changes from "System Check Mode" to "MOST Line Check".
* The master unit checks the connection of each device on the MOST network.
* *1: Node position number for devices connected to the MOST network.
* *2: Device Name List
HINT
* Device Name List displays some of the devices that make up the electro multi vision system.
* The names of the components from Device Name List are shown in the following table.
* *3: Check Result
HINT
* The master unit displays the check result on the screen based on the response information from each slave unit.
* Result codes for all devices are displayed.
* The device name and result will not be displayed if there is no system registration record and no response for the connection check during the MOST line check, even if the device is connected to the MOST network.
(c) Function Check/Setting Screen
HINT
Each item is grayed out or not displayed based on the device settings.
(1) Microphone & Voice Recognition Check Screen
HINT
* The microphone is active at all times when this screen is displayed.
* While recording or playing, the switches other than the stop switch cannot be pushed.
* When no recording is present, the play switch cannot be pushed.
* Recording will stop after 5 seconds or when the stop switch is pushed.
* Select the recording switch with the blower motor of the air conditioning system stopped. If an outlet of the air conditioning system is facing the microphone, noise may be recorded.
(2) Vehicle Signal Check Mode Screen
HINT
* Only items sending vehicle signals will be displayed.
* This screen is updated once per second when input signals to the vehicle are changed.