Navigation (Diagnostics - Introduction): Overview Lexus HS I

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1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTE: After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.
2. PRECAUTIONS FOR DISPLAY AND NAVIGATION MODULE DISPLAY An HDD is built into the display and navigation module display to store map data etc. which will be used for the navigation system. Therefore, care must be taken for the following points when handling: When it is necessary to replace the display and navigation module display, be sure to replace it with a new one. NOTE: If a used display and navigation module display is installed as a replacement part, the customer's HDD will not be recognized. Do not apply any vibration or shock to the display and navigation module display. NOTE: Do not drop or subject the display and navigation module display to severe impacts. Do not use the display and navigation module display if it has been dropped or subjected to a severe impact. Do not store the display and navigation module display without the HDD installed. (Only remove the HDD from the display and navigation module display when the replacement display and navigation module display or HDD is ready.) Do not remove the display and navigation module display if there is a risk that condensation may occur. NOTE: If the temperature of the display and navigation module display changes rapidly, condensation may occur inside the unit. This may cause a malfunction of the HDD. Therefore, when the display and navigation module display is removed from the instrument panel, it needs to be kept inside the vehicle or in an environment with an equivalent temperature and humidity. Take measures to prevent static electricity. NOTE: Touching the terminals of a connector can cause static electricity to be transmitted to the internal circuits. This may cause a malfunction of the HDD. Keep the display and navigation module display away from magnets or magnetized items. NOTE: Keep the display and navigation module display away from speakers, motors, magnetized tools and other magnetic items.
3. PRECAUTIONS FOR HARD DISK DRIVE (HDD) The map data etc for the navigation system is stored on the Hard Disk Drive (HDD). Make sure to follow the following instructions when replacing the HDD: NOTE: Data downloaded by the customer may be stored on the HDD. (w/ Manual (SOS) Switch) This data will be lost when the HDD is replaced. Make sure to warn the customer that their data will be lost and obtain their consent prior to replacing the HDD. The HDD must only be replaced with a new one. Do not attempt to install a used HDD from another vehicle. NOTE: The display and navigation module display can recognize only a new HDD. Do not touch the HDD cover. NOTE: When removing or installing the HDD, only hold it by the areas shown in the illustration. Do not apply any vibration or shock to the HDD. NOTE: Do not drop or allow anything to strike the HDD. Never use an HDD that has been dropped or struck. Do not store an HDD by itself if it has been removed from the display and navigation module display. (Only remove the HDD from the display and navigation module display when the replacement display and navigation module display or HDD is ready.) Do not remove the HDD if there is a risk that condensation may occur. NOTE: If the temperature of the HDD changes rapidly, condensation may occur inside the unit. This may cause a malfunction of the HDD. Therefore, when the display and navigation module display is removed from the instrument panel, it needs to be kept inside the vehicle or in an environment with an equivalent temperature and humidity. Take measures to prevent static electricity. NOTE: Touching the terminals of a connector can cause static electricity to be transmitted to the internal circuits. This may cause a malfunction of the HDD. Keep the HDD away from magnets or magnetized items. NOTE: Keep the HDD away from speakers, motors, magnetized tools and other magnetic items. Inspect after HDD replacement. NOTE: Make sure to perform Check Hard Disk Drive in Operation Check to confirm that there are no HDD abnormalities after removal or installation. Refer to «OPERATION CHECK»(ref-398298-S24430286532011051600000) .
4. PRECAUTIONS FOR CENTER INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY NOTE: The center instrument cluster finish panel assembly has driving parts that drive the multi-display. Depending on the condition of the driving parts, the multi-display may not open, close or tilt properly. Therefore, make sure to follow the notices below when disassembling and assembling the center instrument cluster finish panel assembly. When disassembling the center instrument cluster finish panel assembly, remove it without damaging the driving parts or catching foreign objects, and store it. When assembling the center instrument cluster finish panel assembly, install it without damaging the driving parts or catching foreign objects.

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1. MOST NETWORK COMMUNICATION LINE
2. AVC-LAN COMMUNICATION LINE
3. OTHER

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1. NAVIGATION SYSTEM OUTLINE Vehicle position tracking methods It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map. There are 2 methods to track the current vehicle position: autonomous (dead reckoning) and GPS* (satellite) navigation. Both navigation methods are used in conjunction with each other. *: GPS (Global Positioning System) Operation Description Vehicle Position Calculation The display and navigation module display calculates the current vehicle position (direction and current position) using the direction deviation signal from the gyro sensor and driving distance signal from the vehicle speed sensor and creates the driving route. Map Display Processing The display and navigation module display processes the vehicle position data, vehicle driving track and map data from the hard disk drive. Map Matching The map data from the hard disk drive is compared to the vehicle position and driving track data. Then, the vehicle position is matched with the nearest road. GPS Correction The vehicle position is matched to the position measured by the GPS. Then, the GPS measurement position data is compared with the vehicle position and driving track data. If the position is very different, the GPS measurement position is used. Distance Correction The vehicle speed signal includes error caused by tire wear and slippage between the tires and road surface. Distance correction is performed to account for this. The display and navigation module display automatically offsets the signal to make up for the difference between the distance signal and distance data of the map. The offset is automatically updated. HINT: The combination of autonomous and GPS navigation makes it possible to display the vehicle position even when the vehicle is in places where the GPS cannot receive a signal. When only autonomous navigation is used, however, the mapping accuracy may slightly decrease. Autonomous navigation This method determines the relative vehicle position based on the driving track determined by the gyro located in the display and navigation module display and the vehicle speed signal. Gyro sensor Used to calculate the direction by detecting angular velocity. It is located in the display and navigation module display. Vehicle speed signal Used to calculate the vehicle driving distance. GPS* navigation (Satellite navigation) This method detects the absolute vehicle position using radio waves from GPS satellites. *: GPS satellites were launched by the U.S. Department of Defense for military purposes. Number of Satellites Measurement Description 2 or less Measurement is impossible Vehicle position cannot be obtained because the number of satellites is not enough. 3 2-dimensional measurement is possible Vehicle position is obtained based on the current longitude and latitude. (This is less precise than 3-dimensional measurement.) 4 3-dimensional measurement is possible Vehicle position is obtained based on the current longitude, latitude and altitude. Map matching The current driving route is calculated by autonomous navigation (according to the gyro sensor and vehicle speed sensor) and GPS navigation. This information is then compared with possible road shapes from the map data in the hard disk drive and the vehicle position is set onto the most appropriate road.
2. MULTI-DISPLAY OUTLINE A pop-up type multi-display is built into the center instrument cluster finish panel assembly. Opening, closing and tilt angle adjustments of the multi-display can be performed using the multi-display switch built into the telltale light assembly.
3. REMOTE TOUCH OUTLINE HINT: The navigation system is remotely controlled using the remote touch switch knob and switches. The remote touch is equipped with a feedback force function. When the remote touch switch knob is operated, the built-in 2-axis motors are controlled. The motors are used to provide feedback force for the knob according to the pointer operation displayed on the multi-display. The feedback force of the remote touch allows the users to select icons easily when operating the navigation system. Remote Touch Switch Knob Operation Movement of the pointer on the multi-display screen is synchronized with knob operation. HINT: During remote touch switch knob operation, the distance that the knob moves is sent to the display and navigation module display as operational coordinates. The range of operational coordinates for the lateral and longitudinal axes is between 0 and 255. The multi-display also has operational coordinates that range from 0 to 255 for the lateral and longitudinal axes. The display and navigation module display displays the pointer according to the operational coordinates from the knob. Remote Touch Switch Knob Feedback Force The remote touch has 2 built-in motors. These motors control both lateral and longitudinal axes and generate feedback force according to remote touch switch knob operation. HINT: There are 3 types of feedback force image areas (Icons, Frames and Others) are provided on the multi-display screen. The feedback force changes depending on the area. The display and navigation module display sends a feedback force request signal to the remote touch according to the pointer location displayed on the multi-display. When the remote touch receives the feedback force request signal, the remote touch controls the motors and generates 3 types of feedback force according to the operation direction of the remote touch switch knob. The strength of feedback force generated by the remote touch can be adjusted. Refer to the owner's service information for further information. Icon Area HINT: When the pointer comes close to an icon area, force will be provided to pull the pointer toward the center of the icon area. Stronger force is provided while driving than while parked. Frame Area HINT: Frame areas are provided for the edges of all display screens. When the pointer comes close to the edge of the screen, force will be provided to move the pointer away from the edge of the screen. Other Area HINT: When the pointer is in an area other than one of those specified, resistance will be provided that is proportional to the remote touch switch knob operation speed. Stronger resistance is provided on the map screen than on other screens.
4. DVD (DIGITAL VERSATILE DISC) PLAYER OUTLINE (for DVD Changer Models) The DVD player can only play DVD videos, DVD audio and video CDs that have any of the following marks: Precaution for use of discs NOTE: 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 discs 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. DualDiscs that mate DVD recorded material on one side with CD digital audio material on the other cannot be played. Cleaning NOTE: Do not use a lens cleaner because it may cause a malfunction in the pickup portion of the player. 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. NOTE: 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.
5. "Bluetooth" OUTLINE "Bluetooth" is a trademark owned by Bluetooth SIG. Inc. "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. Hands-free function The "Bluetooth" built-in radio receiver assembly 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.
6. RBDS FUNCTION OUTLINE (BROADCAST IN NORTH AMERICA ONLY) The Radio Broadcast Data System (RBDS) is broadcast through conventional FM radio broadcasts. Information such as song names, traffic information, broadcast station names, etc. can be received.
7. SDARS SYSTEM FUNCTION OUTLINE (BROADCAST IN NORTH AMERICA ONLY) Satellite Digital Audio Radio Service (SDARS) is a satellite digital radio broadcast provided by Sirius XM Radio Inc. The broadcast (pay-type) is performed through satellites and terrestrial repeater networks. Several unique channels are available, and even if a vehicle changes locations, the same information can be received without breaks. Information such as song names, broadcast station names, etc. can be received. Also, additional services may also be available. NOTE: To receive audio-visual pay-type broadcasts, the customer must enter into a pay-type contract with XM Satellite Radio Inc. After entering into a contract, registration of the XM Radio ID is required. Also, if parts are replaced, the XM Radio ID must be re-registered.
8. VEHICLE CUSTOMIZATION OUTLINE Customization of functions can be performed on the multi-display screen. Refer to the owner's service information for further information on customizable items for the navigation system. HINT: Items available for customization via the navigation system can be performed by using the Techstream. Some customize parameters displayed on the Techstream will be displayed on the "Vehicle Customization" screen for the navigation system. Users can customize these items.
9. COMMUNICATION SYSTEM MOST Network Outline Navigation system components communicate with each other via a MOST network. The MOST network uses a shielded twisted pair of wires for its communication lines. The master unit of the MOST network is the navigation ECU (display and navigation module display). MOST communication lines connect each slave unit centering around the master unit to form a MOST network ring. 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. AVC-LAN Outline Components of the navigation system communicate with each other via the AVC-LAN. The AVC-LAN uses a twisted pair of wires for its communication lines. The master unit of the AVC-LAN is the navigation ECU (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.
10. DIAGNOSTIC FUNCTION OUTLINE The navigation system has a diagnostic function (the result will be displayed on the master unit or the Techstream).
11. DIAGNOSIS DISPLAY DETAILED DESCRIPTION HINT: This Information 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. Service Menu Screen HINT: Each item is grayed out or not displayed based on the device settings. Failure Diagnosis Screen HINT: Each item is grayed out or not displayed based on the device settings. 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. Name Component Connection Method EMV-M Display and navigation module display - AUDIO Radio receiver assembly Communication line for MOST network AMP Stereo component amplifier assembly Communication line for MOST network R-TOUCH Remote touch Communication line for MOST network DISP Multi-display Communication line for AVC-LAN CAMERA-C Parking assist ECU (w/ Wide view front monitor system) Communication line for AVC-LAN MOTOR-C Display module board Communication line for AVC-LAN CLOCK Integration control and panel assembly Communication line for AVC-LAN HUD Meter mirror sub-assembly (w/ Headup display) Communication line for AVC-LAN USB-BOX Multi-media interface ECU Communication line for AVC-LAN *3: Check Result HINT: Result codes for all devices are displayed. When "MOST" is displayed for the result, press "MODE" on the steering pad switch assembly to display the "MOST Line Check" screen. Changing to the "MOST Line Check" screen is possible only when "MOST" is displayed for the result. Result Meaning Action OK The device does not respond with a DTC. - MOST MOST communication error Perform "MOST Line Check" to check the connection of each device on the MOST network. EXCH The device responds with a "replace"-type DTC. Look up the DTC in "Unit Check Mode" and replace the device. CHEK The device responds with a "check"-type DTC. Look up the DTC in "Unit Check Mode". NCON The device was previously present, but does not respond in diagnostic mode. - Check power supply wire harness of the device. - Check the AVC-LAN or MOST network for the device. NRES The device responds in diagnostic mode, but gives no DTC information. - Check power supply wire harness of the device. - Check the AVC-LAN or MOST network for the device. *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 navigation system. The names of the components from Device Name List No. 2 are shown in the following table. Name Component Connection Method MIC Telephone microphone assembly Vehicle wire harness AUX No. 1 stereo jack adapter assembly Vehicle wire harness DCM DCM (Telematics transceiver) (w/ Manual (SOS) switch) Communication line for USB Unit Check Mode Screen SCREEN DESCRIPTION Display Content *1: Device name Target device *2: History DTC Diagnostic memory results and stored DTCs are displayed. *3: Present DTC DTCs output in the service check are displayed. *4: DTC DTC (Diagnostic Trouble Code) *5: Timestamp The time and date of history DTCs are displayed. (The year is displayed in 2-digit format.) *6: Diagnosis clear switch Selecting this switch for 3 seconds clears the diagnostic memory data of the target device. (Both response to diagnostic system check result and the displayed data are cleared.) 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 navigation system. The names of the components from Device Name List are shown in the following table. Name Component EMV-M Display and navigation module display AUDIO Radio receiver assembly AMP Stereo component amplifier assembly R-TOUCH Remote touch *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. Result Meaning OK There was a response for the connection check during the MOST line check. NCON There was no response for the connection check during the MOST line check. 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. Function Check/Setting Screen HINT: Each item is grayed out or not displayed based on the device settings. Microphone & Voice Recognition Check Screen SCREEN DESCRIPTION Display Content *1: Microphone input level meter Monitors the microphone input level every 0.1 sec. and displays the results in 8 different levels. *2: Recording switch Starts recording. *3: Stop switch Stops recording and playing. *4: Play switch Plays the recorded voice. *5: Recording indicator Comes on while recording. HINT: The microphone is active at all times when this screen is displayed. Turn off the blower motor of the air conditioning system before selecting the recording switch when performing the microphone & voice recognition check. If an outlet of the air conditioning system is facing the microphone, noise may be recorded. While recording or playing, the switches other than the stop switch cannot be selected. When no recording is present, the play switch cannot be selected. Recording will stop after 5 seconds or when the stop switch is selected. GPS Information Screen *1: Satellite information HINT: Information from a maximum of 12 satellites is displayed on the screen. This information includes the target GPS satellite number, elevation angle, direction and signal level. *2: Receiving condition SCREEN DESCRIPTION Display Content T The system is receiving a GPS signal, but is not using it for location. P The system is using the GPS signal for location. - The system cannot receive a GPS signal. *3: Measurement information SCREEN DESCRIPTION Display Content 2D 2-dimensional location method is being used. 3D 3-dimensional location method is being used. NG Location data cannot be used. Error Reception error has occurred. - Any other state *4: Position information SCREEN DESCRIPTION Display Content Position Latitude and longitude information on the current position is displayed. *5: Date information SCREEN DESCRIPTION Display Content Data The date/time information obtained from GPS signals is displayed in Greenwich Mean Time (GMT). Vehicle Sensors Screen VEHICLE SIGNAL Display Content *1: SPD SPD signal condition is displayed. SENSOR SIGNAL Display Content *2: Gyro sensor Gyro sensor output condition is displayed. HINT: Signals are updated once per second only when vehicle sensor signals change. Vehicle Signal Check Mode Screen SCREEN DESCRIPTION Display Content Battery Battery voltage is displayed. IG Power switch ON/OFF state is displayed. PKB Parking brake ON/OFF state is displayed. REV Reverse signal ON/OFF state is displayed. SPEED Vehicle speed is displayed in km/h. TAIL TAIL signal (Light control switch) ON/OFF state is displayed. HINT: Only items sending vehicle signals will be displayed. This screen is updated once per second when input signals to the vehicle are changed.