Multi AV system means that the following systems are integrated.

FUNCTION NAME
Navigation system function
Audio function
Hands‐free phone function
Voice recognition function
Touch panel function
Vehicle information function
USB connection function
DVD play function
Multifunction meter system function

COMMUNICATION SIGNAL

- AV control unit function by transmitting/receiving data one by one with each unit (slave unit) that configures them completely as a master unit by connecting between units that configure MULTI AV system with two AV communication lines (H, L).
- Two AV communication lines (H, L) adopt a twisted pair line that is resistant to noise.
- The AV control unit is connected with CAN communication line and receives data signals from the ECM, combination meter, TCM, AWD control unit, A/C auto amp., ABS actuator and electric unit (control unit), steering angle sensor and low tire pressure warning control unit. Using the obtained information, it computes values for the display items relating to the fuel consumption information, multifunction meter, and tire pressure information and displays them.
- AV control unit is connected with display and serial communication, and it transmits the required signal of display and display control and receives the response signal from display.
- The AV control unit, which has the vehicle setting function, transmits and receives data on vehicle setting condition via CAN communication with the BCM.

NAVIGATION SYSTEM FUNCTION
Description

- The AV control unit controls navigation function while GPS tuner has built‐in map data, GYRO (angle speed sensor), on the HDD (Hard Disk Drive).
- The AV control unit inputs operation signal with communication signal, through display (touch panel) and multifunction switch and steering switch.
- Guide sound is output to front speaker through BOSE amp. from AV control unit when operating navigation system.
- A vehicle position is calculated with the GYRO (angle speed sensor), vehicle sensor, signal from GPS satellite and map data stored on HDD (Hard Disk Drive), and transmits the map image signal (RGB digital image signal) to the display.

Position Detection Principle
The navigation system periodically calculates the current vehicle position according to the following three types of signals.

- Travel distance of the vehicle as determined by the vehicle speed sensor
- Vehicle turning angle determined by the gyroscope (angular speed sensor)
- The travel direction of the vehicle determined by the GPS antenna (GPS information)

The current position of the vehicle is then identified by comparing the calculated vehicle position with map data, which is stored in the HDD (Hard Disk Drive) (map‐matching), and indicated on the screen with a current location mark. More accurate data is used by comparing position detection results from GPS to the map‐matching.
The current position is calculated by detecting the travel distance from the previous calculation point, and its direction change.

- Travel distanceThe travel distance is generated from the vehicle speed sensor input signal. The automatic distance correction function is adopted for preventing a miss‐detection of the travel distance because of tire wear etc.
- Travel directionThe gyroscope (angular velocity sensor) and GPS antenna (GPS information) generate the change of the travel direction. Both have advantages and disadvantages as per the following descriptions.

Type | Advantage | Disadvantage
Gyroscope (angular velocity sensor) | The turning angle is precisely detected. | Errors are accumulated when driving a long distance without stopping.
GPS antenna (GPS information) | The travel direction (North/South/East/West) is detected. | The travel direction is not precisely detected when driving slowly.

Input signals are prioritized in each situation. However, this order of priority may change in accordance with more detailed travel conditions so that the travel direction is detected more accurately.
Map‐matching
Map‐matching repositions the vehicle on the road map when a new location is judged to be more accurate. This is done by comparing the current vehicle position (calculated by the normal position detection method) from the map data stored in the HDD (Hard Disk Drive).
There is a possibility that the vehicle position may not be corrected in the following case, and when vehicle is driven over a certain distance or time in which GPS information is hard to receive. Correct manually the current location mark on the screen.

- In map‐matching, several alternative routes are prepared and prioritized in addition to the road judged as currently driving on.
  Therefore, due to errors in the distance and/or direction, an incorrect road may be prioritized, and the current location mark may be repositioned to the incorrect road.If two roads are running in parallel, they are of the same priority. Therefore, the current location mark may appear on either of them alternately, depending on maneuvering of the steering wheel and configuration of the road, etc.

- Map‐matching does not function correctly when road on which the vehicle is driving is new, etc. and not recorded in the map data. Also, map‐matching does not function correctly when road pattern stored in the map data and the actual road pattern are different due to repair, etc.
  Therefore, the map‐matching function judges other road as a currently driving road if the road is not in the map, and displays the current location mark on it. Later, the current location mark may be repositioned to the road if the correct road is detected.

- Effective range for comparing the vehicle position and travel direction calculated by the distance and direction with the road data is limited. Therefore, correction by map‐matching is not possible when there is an excessive gap between current vehicle position and the position on the map.

GPS (Global Positioning System)
GPS (Global Positioning System) is developed for and is controlled by the US Department of Defense. The system utilizes GPS satellites (NAVSTAR), transmitting out radio waves while flying on an orbit around the earth at an altitude of approximately 21,000 km (13,049 mile).
The receiver calculates the travel position in three dimensions (latitude/longitude/altitude) according to the time lag of the radio waves that four or more GPS satellites transmit (three‐dimensional positioning). The GPS receiver calculates the travel position in two dimensions (latitude/longitude) with the previous altitude data if the GPS receiver receives only three radio waves (two‐dimensional positioning). GPS position correction is not performed while stopping the vehicle.
Accuracy of the GPS will deteriorate under the following conditions:

- In two‐dimensional positioning, GPS accuracy will deteriorate when altitude of the vehicle position changes.
- The position of GPS satellite affects GPS detection precision. The position detection may not be precisely performed.
- The position detection is not performed if GPS receiver does not receive radio waves from GPS satellites. (Inside a tunnel, parking in a building, under an elevated highway etc.) GPS receiver may not receive radio waves from GPS satellites if any object is placed on the GPS antenna.

NOTE：

- The detection result has an error of approximately 10 m (32.81 ft) even with a high‐precision three dimensional positioning.
- There may be cases when the accuracy is lowered and radio waves are stopped intentionally because the GPS satellite signal is controlled by the US trace control center.

AUDIO FUNCTION
The audio system is equipped with the following functions. Each function is operated with multifunction switch, preset switch, touch panel, steering switch or audio recognition. Operation status of audio is indicated at display.

FUNCTION
AM/FM radio
Satellite radio
CD
Bluetooth™ audio
Music Box (Hard Disk Drive)
USB connection

Operating Signal
Audio system operation can be performed with multifunction switch, preset switch, steering switch, touch panel function or voice recognition function.

- Operating signal is transmitted to AV control unit with AV communication when it is operated by multifunction switch or preset switch. The disk ejection operating signal is performed by hardwire.
- Operating signal is transmitted to AV control unit with steering switch signal when it is operated by steering switch.

Screen Display
Switching of display is performed with serial communication between display unit and AV control unit.
AM/FM Radio Mode

- AM/FM radio tuner is built into AV control unit.
- Audio signal is received by glass antenna, next it is amplified by antenna amp., and finally it is input to AV control unit. Audio signal is input to BOSE amp., and BOSE amp. outputs to woofer and each speakers.

Satellite Radio Mode

- Satellite radio tuner is built into AV control unit.
- Audio wave (satellite radio) is received by satellite radio antenna, and it is input to AV control unit. AV control unit outputs audio signal to BOSE amp. The signal is also outputted from BOSE amp. to woofer and each speaker.

CD Mode

- CD function is built into AV control unit.
- AV control unit outputs audio signal to BOSE amp., and BOSE amp. outputs to woofer and each speakers when CD is inserted to AV control unit.

Music Box Mode

- Music CD data is stored on HDD (Hard Disk Drive) that is built into AV control unit, and it can be played.
- AV control unit outputs music (audio signal) that is stored on HDD (Hard Disk Drive) to BOSE amp., and BOSE amp. outputs to woofer and each speakers.

Bluetooth™ Audio

- Bluetooth™audio function is built into AV control unit.
- When the Bluetooth™ audio is connected to the portable audio equipped with the Bluetooth™ communication compliant profile via Bluetooth™ communication, it can be play the music data in the portable audio.
- A maximum of five Bluetooth™ devices including the audio devices and cellular phones can be registered in the AV control unit.

HANDS‐FREE PHONE FUNCTION

- Hands‐free communication can be operated by connecting using Bluetooth™ communication with cellular phone.
- Operation is performed by steering switch and multifunction switch, and operating condition is indicated on display.
- Guide sound that is heard during operation is input from AV control unit to BOSE amp., and is output from front door speaker.

When A Call Is Originated
Spoken voice sound output from the microphone (Mic. Signal) is input to AV control unit. AV control unit outputs to cellular phone with Bluetooth™ communication as a TEL voice signal. Voice sound is then heard at the other party.
When Receiving A Call
Voice sound is input to own cellular phone from the other party. TEL voice signal is output to front door speaker, and the signal is input to BOSE amp. via AV control unit by establishing Bluetooth™ communication from cellular phone.
VOICE RECOGNITION FUNCTION

- Each operation of multi AV system can be performed by inputting sound to microphone.
- Start of voice recognition system can be performed by steering switch.

TOUCH PANEL SYSTEM
Each operation of multi AV system can be performed by directly touching a display.
VEHICLE INFORMATION FUNCTION

- Status of audio, climate control system, fuel economy, tire pressure and maintenance is displayed.
- AV control unit displays the fuel consumption status while receiving data signal through CAN communication from ECM, combination meter.
- AV control unit displays the tire pressure status while receiving data signal through CAN communication from low tire pressure warning control unit.

USB CONNECTION FUNCTION

- iPod or music files and video data* of USB memory can be played.
- iPod audio signals are transmitted from USB connector to the AV control unit and to each speaker via BOSE amp.
- Video signals are transmitted from USB connector to the display unit via the AV control unit.
- iPod® is recharged when connected to USB connector.

*: Image signal can not be getting from iPod®.
iPod® is a trademark of Apple inc., registered in the U.S. and other countries.
NOTE：
Use the enclosed USB harness when connecting iPod® to USB connector.
DVD PLAY FUNCTION

- DVD is played by inserting DVD into the AV control unit.
- DVD image signals are transmitted to the display unit and DVD audio signals are transmitted to each speaker via BOSE amp.

MULTIFUNCTION METER SYSTEM
Multi function meter system can be performed with multi function switch.

- To inform the user of the most suitable usage of the high-performance vehicle, the mechanical information display function, driving assist display function, gear and fuel consumption display function, and driving history information display function are adopted.
- The necessary information is transmitted from each unit to the AV control unit via CAN communication to display on the multifunction meter.
- The multifunction meter has functions listed below.

  Function | Description | Display
  Vehicle information mode | Displays mechanical information to use the vehicle in good condition. | CUSTOM VIEW 1 CUSTOM VIEW 2 CUSTOM VIEW 3 CUSTOM VIEW 4
  Driving assist display mode | Displays major elements to improve the driving technique. | ACCELERATION BRAKING STEERING
  Gear & fuel consumption display mode | Displays proper gear selection, ECO level and fuel consumption to improve the fuel efficiency. | GEAR POSITION FUEL ECONOMY
  Driving history information display mode | Displays the measured TIME results. | STOP WATCH

  NOTE：
  For further information about the procedure for handling and setting each function, refer to the Operation Manual.

Vehicle Information Mode
To continue to use the vehicle in good condition, it can display the mechanical information if necessary.

Display | Display Item | Description | Signal route | Display form | Display range | Unit
CUSTOM VIEW 1 CUSTOM VIEW 2 CUSTOM VIEW 3 CUSTOM VIEW 4 | COOLANT TEMP | Engine coolant temperature | Coolant temperature sensor → ECM → Combination meter → AV control unit | Gauge | 50 - 130 | °C
Value | (−40) - (200)
Gauge | 120 - 270 | °F
Value | (−40) - (390)
ENGINE OIL TEMP | Engine oil temperature | Fluid temperature sensor → ECM → Combination meter → AV control unit | Gauge | 70 - 150 | °C
Value | (−50) - (200)
Gauge | 150 - 300 | °F
Value | (−50) - (390)
ENGINE OIL PRES | Engine oil pressure | Oil pressure sensor → Combination meter → AV control unit | Gauge | 0 - 8 | x100 kPa
PSI
TRANS OIL TEMP | Transmission oil temperature | Transmission oil sensor → TCM → Combination meter → AV control unit | Gauge | 40 - 160 | °C
Value | (−40) - (200)
Gauge | 120 - 320 | °F
Value | (−40) - (390)
TRANS OIL PRESSURE | Transmission oil pressure | Transmission oil pressure sensor → TCM → Combination meter → AV control unit | Gauge | Lo - Hi | —
BOOST | Boost pressure | Boost sensor → ECM → Combination meter → AV control unit | Gauge | (−1.0) - (1.5) | x100 kPa
PSI
SPEED | Vehicle speed (small display only) | Wheel sensor → ABS actuator and electric unit (control unit) → Combination meter → AV control unit | Value | 0 - 340 | km/h
0 - 215 | MPH
FUEL/RANGE | Fuel level and possible driving distance | Combination meter → AV control unit | Gauge | E - F | —
Value | 0 - 999 | km
mile
FUEL FLOW | Fuel Flow | ECM → AV control unit | Gauge | — | —
CUSTOM VIEW 1 CUSTOM VIEW 2 CUSTOM VIEW 3 CUSTOM VIEW 4 | FUEL ECON | Interval fuel consumption Small display: Latest fuel consumption during the past minute Large display: Displays the history of an average ECO level per minute (20 minutes data)
ECM/Combination meter → AV control unit
Value
0 - 30
l/100 km
Graph | 0 - 30
Value | 0 - 60 | MPG
Graph | 0 - 30
TORQUE SPLIT | Front torque distribution (small display only) | AWD control unit → Combination meter → AV control unit | Gauge | RWD - AWD | —
ACCEL BRAKING G | Longitudinal G (Accelerator pedal/brake G) Small display: Real time display Large display:
History display (for 20 seconds)
Yaw rate/side G/longitudinal G sensor → ABS actuator and electric unit (control unit) → AV control unit
Gauge
(−1.5) - (1.5)
—
Graph | Auto scale | —
CORNERING G | Transverse G (Cornering G) Small display: Real time display Large display:
History display (for 20 seconds)
Yaw rate/side G/longitudinal G sensor → ABS actuator and electric unit (control unit) → AV control unit
Gauge
(−1.5) - (1.5)
—
Graph | Auto scale | —
TOTAL G | Synthetic G (Absolute G generated on the vehicle synthesized from longitudinal G and transverse G) Small display: Real time display Large display: History display (for 20 seconds) | Yaw rate/side G/longitudinal G sensor → ABS actuator and electric unit (control unit) → AV control unit | Gauge | 0 - 1.5 | —
Graph
CLOCK | Clock | GPS antenna → AV control unit | Value | 12/24 | Time
ACCEL PEDAL | Accelerator pedal position (small display only) | ECM → AV control unit | Gauge | 0 - 100 | %
BRAKE PEDAL | Braking pressure (small display only) | Pressure sensor → ABS actuator and electric unit (control unit) → AV control unit | Gauge | 0 - 100 | %
STEERING | Steering angle (small display only) | Steering angle sensor → AV control unit | Gauge | Auto scale | —

Driving Assist Display Mode
Displays major elements (accelerator, brake and steering operations) to improve the driving technique, and also displays the longitudinal/transverse G history.

Display | Display Item | Description | Signal route | Display form | Display range | Unit
ACCELERATION | ACCEL PEDAL | Accelerator pedal position | ECM → AV control unit | Gauge | 0 - 100 | %
BOOST | Boost pressure | Boost sensor → ECM → Combination meter → AV control unit | Gauge | (−1.0) - (1.5) | x100 kPa
PSI
ACCEL G | History display of accelerator G (for 20 seconds) | Yaw rate/side G/longitudinal G sensor → ABS actuator and electric unit (control unit) → AV control unit | Gauge | 0 - 1.5 | —
Graph
BRAKING | BRAKE PEDAL | Braking pressure | Pressure sensor → ABS actuator and electric unit (control unit) → AV control unit | Gauge | 0 - 100 | %
SPEED | Vehicle speed | Wheel sensor → ABS actuator and electric unit (control unit) → AV control unit | Value | 0 - 340 | km/h
0 - 215 | MPH
BRAKING G | History display of brake G (for 20 seconds) | Yaw rate/side G/longitudinal G sensor → ABS actuator and electric unit (control unit) → AV control unit | Gauge | 0 - 1.5 | —
Graph
STEERING | STEERING | Steering angle | Steering angle sensor → AV control unit | Gauge | Auto scale | —
SPEED | Vehicle speed | Wheel sensor → ABS actuator and electric unit (control unit) → AV control unit | Value | 0 - 340 | km/h
0 - 215 | MPH
CORNERING G | History display of cornering G (for 20 seconds) | Yaw rate/side G/longitudinal G sensor → ABS actuator and electric unit (control unit) → AV control unit | Gauge | (−1.5) - (1.5) | —
Graph | Auto scale

Gear & Fuel Consumption Display Mode
Displays proper gear selection to improve the fuel efficiency, and also displays fuel consumption and ECO driving level.

Display | Display item | Description | Signal route | Display form | Display range | Unit
GEAR POSITION | GEAR | Selected gear position | Position sensor → TCM → Combination meter → AV control unit | Value/symbol | R, P, N, 1 - 6 | —
SPEED | Vehicle speed | Wheel sensor → ABS actuator and electric unit (control unit) → AV control unit | Value | 0 - 340 | km/h
0 - 215 | MPH
GEAR EFFICIENCY | Displays ECO/power band per gear. | TCM → Combination meter → AV control unit | Special display | — | —
FUEL ECONOMY | FUEL EFFICIENCY | Displays the current ECO level. | ECM/TCM/Combination meter → AV control unit | Gauge | 10 levels | —
FUEL ECON | Interval fuel consumption (for 1 minuets) | ECM/Combination meter → AV control unit | Value | 0 - 30 | l/100 km
Graph | 0 - 30
Value | 0 - 60 | MPG
Graph | 0 - 30
FUEL EFFICIENCY | Displays the history of an average ECO level per minute (20 minutes data) | ECM/TCM/Combination meter → AV control unit | Graph | 10 levels | —

Driving History Information Display Mode
Displays the sub-functions (driving route history and required time history) indicating the driving history.

Display | Description | Display form
STOP WATCH | Displays the measured TIME results. | Special display
DRIVER'S NOTES | Displays the driving history information | Special display