navigation system NISSAN TIIDA 2007 Service User Guide

AV-32
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
MULTI AV SYSTEM
FUNCTION DIAGNOSIS
MULTI AV SYSTEM
System DiagramINFOID:0000000001728627
System DescriptionINFOID:0000000001728628
Multi AV system means that the following systems are integrated.
 Two AV communication lines (H, L) connect between units that configure MULTI AV system. NAVI control
unit controls by sending/receiving data one by one with each unit (slave unit) that configures them com-
pletely as a master unit.
 Two AV communication lines (H, L) adopt a twisted pair line that is resistant to noise.
 NAVI control unit is connected by CAN communication, and it receives data signal from ECM, combination
meter. It computes and displays fuel economy information value with the obtained information. Sending/
receiving of data signal is performed by BCM. Also, it sends the required signal of vehicle setting and
receives the response signal.
ALNIA0882GB
System name System explanation
NAVIGATION SYSTEMAV- 3 5 , "
System Description"
AUDIO SYSTEMXX-XX, "*****"
VEHICLE INFORMATION SYSTEM Status of audio, fuel economy, maintenance and navigation is
displayed.
 NAVI control unit displays the fuel consumption status and trip
computer status while receiving data signal through CAN com-
munication from ECM, combination meter and BCM.
HANDS-FREE PHONE SYSTEM Refer to the following “HANDS-FREE PHONE SYSTEM”.

AV
MULTI AV SYSTEM
AV-33
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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 NAVI control unit is connected with display and serial communication, and it sends the required signal of dis-
play and display control and receives the response signal from front display. Also, it is connected with satel-
lite radio by serial communication, and it sends the operating signal and receives the display signal.
NOTE:
NAVI control unit can perform CONSULT-III self-operating function and on board self-diagnosis.
 CONSULT-III self diagnosis: Refer to AV-48, "
CONSULT - III Function (MULTI AV)".
 On board self diagnosis: Refer to AV-39, "
Diagnosis Description".
HANDS-FREE PHONE SYSTEM
 Hands-free communication can be operated by connecting using Bluetooth® with cellular phone.
 Operation is performed by steering switch, and operating condition is indicated on display.
 Guide sound that is heard during operation is input from NAVI control unit to audio unit and is output from
front speaker.
When a call is originated
Spoken voice sound output from the microphone (Mic. Signal) is input to NAVI control unit. NAVI 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 speaker, and
the signal is input to audio unit via NAVI control unit by establishing Bluetooth
® communication from cellular
phone.
Component Parts LocationINFOID:0000000001728629
1. AV control unit M43, M44 2. Display unit M100 3. Navi control unit B68, B69
ALNIA0891GB

AV-34
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
MULTI AV SYSTEM
Component Description
INFOID:0000000001728630
4. Front door speaker
Driver side D12
Passenger side D1125. Rear door speaker
LH D207
RH D3076. Front tweeter
LH M109
RH M47
7. Steering wheel audio control switch-
es M1028. Microphone R15
Part name Description
NAVI CONTROL UNIT Map data can be read from the Map DVD-ROM by installing Map DVD-ROM.
 It is the master unit of the MULTI AV system, and it is connected to each con-
trol unit by means of communication. It operates each system according to
communication signals from the NAVI control unit.
 The NAVI control unit includes the audio, hands-free phone, navigation, and
vehicle information functions.
 It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
 It inputs the illumination signals that are required for the display dimming con-
trol.
 It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
MAP DVD-ROM A collection of Map data.
DISPLAY UNIT Display image is controlled by the serial communication from NAVI control
unit.
 RGB image signal is input from NAVI control unit (RGB, RGB area and RGB
synchronizing). Camera image signal is input from camera control unit.
 Synchronize signal (HP, VP) is output to NAVI control unit.
AV CONTROL UNIT Operational switch of MULTI AV system is integrated.
 NAVI control unit and AV communication are connected with AV control unit.
Operating signals of the switch are sent to the NAVI control unit.
FRONT DOOR SPEAKER Outputs sound signal from AV control unit.
 Outputs high, mid and low range sounds.
REAR DOOR SPEAKER Outputs sound signal from AV control unit.
 Outputs high, mid and low range sounds.
FRONT TWEETER Outputs sound signal from AV control unit.
 Outputs high range sound.
STEERING WHEEL AUDIO CONTROL SWITCH Operations for audio, hands-free phone, voice recognition and navigation,
etc. are possible.
 Steering switch signal (operation signal) is output to AV control unit.
MICROPHONE Used for hands-free phone operation and voice recognition.
 Mic. signal is sent to NAVI control unit.
 Power (Mic. VCC) is supplied from NAVI control unit.
GPS ANTENNA GPS signal is received and sent to NAVI control unit.
RADIO ANTENNA Radio signal received by antenna is sent to AV control unit.

AV
NAVIGATION SYSTEM
AV-35
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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NAVIGATION SYSTEM
System DiagramINFOID:0000000001728631
System DescriptionINFOID:0000000001728632
NAVIGATION SYSTEM
Location Detection Principle
The navigation system periodically calculates the vehicle's current
position according to the following three signals:
 Travel distance of the vehicle as determined by the vehicle speed
sensor
 Turning angle of the vehicle as determined by the gyroscope
(angular velocity sensor)
 Direction of vehicle travel as 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 read from the map DVD-
ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen as a vehicle mark. More accurate data is
judged and used by comparing vehicle position detection results found by the GPS with the result by map-
matching.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
 Travel distance
Travel distance calculations are based on the vehicle speed sen-
sor input signal. Therefore, the calculation may become incorrect
as the tires wear down. To prevent this, an automatic distance cor-
rection function has been adopted.
 Travel direction
Change in the travel direction of the vehicle is calculated by a gyro-
scope (angular velocity sensor) and a GPS antenna (GPS informa-
tion). They have both advantages and disadvantages.
JPNIA0157GB
SKIB1058E
SEL684V

AV-36
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
NAVIGATION SYSTEM
More accurate traveling direction is detected because priorities are set for the signals from these two
devices according to the situation.
Map-Matching
Map-matching compares a current location detected by the method
in the “Location Detection Principle” with a road map data from Map
DVD-ROM stored in DVD-ROM drive.
NOTE:
The road map data is based on data stored in the map DVD-ROM.
The vehicle position may not be corrected under the following circumstances and after driving for a certain
time when GPS information is difficult to receive. In this case, the vehicle mark on the display must be cor-
rected manually.
 In map-matching, alternative routes to reach the destination will be
shown and prioritized, after the road on which the vehicle is cur-
rently driven has been judged and the vehicle mark has been repo-
sitioned.
Alternative routes will be shown in different order of priority, and
the incorrect road can be avoided if there is an error in distance
and/or direction.
They are of the same priority if two roads are running in parallel.
Therefore, the vehicle mark may appear on either of them alter-
nately, depending on maneuvering of the steering wheel and con-
figuration of the road.
 Map-matching does not function correctly when a road on which
the vehicle is driving is new and not recorded in the map DVD-
ROM, or when road pattern stored in the map data and the actual
road pattern are different due to repair.
The map-matching function may find another road and position the
vehicle mark on it when driving on a road not present in the map.
Then, the vehicle mark may change to it when the correct road is
detected.
 Effective range for comparing the vehicle position and travel direc-
tion calculated by the distance and direction with the road data
read from the map DVD-ROM 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)
Type Advantage Disadvantage
Gyroscope
(angular velocity sensor)Can detect the vehicle's turning angle quite
accurately.Direction errors may accumulate when vehicle is
driven for long distances without stopping.
GPS antenna
(GPS information)Can detect the vehicle's travel direction
(North/South/East/West).Correct direction cannot be detected when vehicle
speed is low.
SEL685V
SEL686V
SKIA0613E

AV
NAVIGATION SYSTEM
AV-37
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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GPS (Global Positioning System) was developed for and is con-
trolled by the US Department of Defense. The system utilizes GPS
satellites (NAVSTAR), sending out radio waves while flying on an
orbit around the earth at an altitude of approximately 21,000 km
(13,100miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-
sional positioning). The GPS receiver calculates the vehicle's posi-
tion in two dimensions (latitude/longitude), utilizing the altitude data
calculated previously with radio waves from four or more GPS satel-
lites (two-dimensional positioning) if radio waves were received only
from three GPS satellites.
Position correction by GPS is not available while the vehicle is stopped.
Accuracy of GPS will deteriorate under the following conditions:
 In two-dimensional positioning, GPS accuracy will deteriorate when altitude of the vehicle position changes.
 The accuracy can be even lower depending on the arrangement of the GPS satellites utilized for the posi-
tioning.
 Position detection is not possible when vehicle is in an area where radio waves from the GPS satellite do not
reach, such as in a tunnel, parking lot in a building, and under an elevated highway. Radio waves from the
GPS satellites may not be received when some object is located over the GPS antenna.
NOTE:
 Even a high-precision three dimensional positioning, the detection result has an error about 10 m (30ft).
 Because the signals of GPS satellite is controlled by the Tracking and Control Center in the United States,
the accuracy may be degraded lower intentionally or the radio waves may stop.
Traffic Information (RDS-TMC)
NOTE:This system is built-in NAVI control unit.
The traffic information broadcast allows to you to avoid delays due to traffic incidents.
Traffic jams, roadwork, closed roads around your current location, etc. are represented graphically on the map
by icons depicting the nature of the event.
Incidents on the route are automatically brought to your attention when they are approached.
The Traffic Information feature gives you the opportunity to forecast traffic incidents, determine how serious
they are, via the guidance mode, and allows you to detour around traffic incidents.
The navigation system receives traffic information from best available sources and enables the RDS-TMC
(Radio Data System-Traffic Information Channel) to inform and guide you.
The RDS-TMC broadcast is fed by a dedicated FM tuner so that you can still tune your radio station while Traf-
fic Information is being broadcasted.
Component Parts LocationINFOID:0000000001728633
Refer to AV-33, "Component Parts Location".
Component DescriptionINFOID:0000000001728634
SEL526V
Part name Description
NAVI CONTROL UNIT The master unit controls each operation of the Navigation system.
 Map data can be read from the Map DVD-ROM by installing Map DVD-ROM.
 The RGB signal (map information) is output to the display.
 The voice guidance signal is output to the audio unit.
MAP DVD-ROM A collection of Map data
DISPLAY UNITMap image signal is input from NAVI control unit, and it map image indicated on
the display.
AUDIO UNIT Voice guidance signal is input from NAVI control unit, and it is output to front
LH/RH speakers.
 Each operation of navigation can be performed.
FRONT DOOR SPEAKER
Voice guidance signal from audio unit is output.
FRONT TWEETER

AV-38
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
NAVIGATION SYSTEM
STEERING SWITCH Each operation of navigation, etc. can be performed.
 Switch operating signal is output to NAVI control unit via audio unit with AV
communication.
GPS ANTENNA GPS signal is received and is output to NAVI control unit.Part name Description

AV
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
AV-39
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
Diagnosis DescriptionINFOID:0000000001728643
MULTI AV SYSTEM on board diagnosis function
 The NAVI control unit diagnosis function starts up with audio switch operation and the NAVI control unit per-
forms a diagnosis for each unit in the system during the on board diagnosis.
 Perform a CONSULT-III diagnosis if the on board diagnosis does not start, e.g., the screen does not display
anything, the multifunction switch does not function. etc.
On board diagnosis
Description
 The trouble diagnosis function has a self-diagnosis mode for conducting trouble diagnosis automatically and
a confirmation/adjustment mode for operating manually.
 The self-diagnosis mode performs diagnoses on the NAVI control unit, connections between system compo-
nents as well as connections between NAVI control unit and GPS antenna. Then it displays the diagnosis
results on the display.
 The confirmation/adjustment mode allows the technician to check, modify or adjust the vehicle signals and
set values, as well as to monitor the system error records and system communication status. The check,
modify or adjust actions generally require human intervention and judgment (the system cannot make judg-
ment automatically).
On board diagnosis item
STARTING PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
Mode Description
Self Diagnosis NAVI control unit diagnosis
 Diagnoses the connections across system components, between
NAVI control unit and GPS antenna.
Confirmation/
AdjustmentDisplay DiagnosisThe following check functions are available: color tone check by color
bar display, light and shade check by gray scale display.
Vehicle SignalsDiagnosis of signals can be performed for vehicle speed, parking
brake, lights, ignition switch, and reverse.
Speaker Test The connection of a speaker can be confirmed by test tone.
NavigationSteering Angle Ad-
justmentA difference can be adjusted between the actual turning angle and the
vehicle mark turning angle.
Speed CalibrationA difference can be adjusted between the current location mark and the
actual location.
Error HistoryThe system malfunction and the frequency when occurred in the past
are displayed. The time and place that the selected malfunction last oc-
curred are displayed when the malfunctioning item is selected.
Vehicle CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.
AV COMM DiagnosisThe communication condition of each unit of Multi AV system can be
monitored.
Handsfree PhoneThe received volume adjustment of hands-free phone, microphone
speaker check, and erase memory can be performed.
Bluetooth The passkey and the device name can be checked and changed.
Delete Unit Connection Log Erase the connection history of unit and error history.
Feature Restriction SettingOperations of navigation system while driving can be restricted by us-
ing this function.

AV-40
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
3. Turn the volume control dial clockwise or counterclockwise for
40 clicks or more while pushing the “SETTING” button. (A short
beep will be heard when the self-diagnosis mode is started.)
 Shifting from current screen to previous screen is performed
by pushing “BACK” button.
4. The trouble diagnosis initial screen is displayed, and then the
items of “Self Diagnosis” and “Confirmation / Adjustment” can be
selected.
Self-diagnosis mode
1. Start the self-diagnosis function. Then select “Self Diagnosis”.
- Self-diagnosis subdivision screen is displayed, and the self-
diagnosis mode starts.
- The bar graph visible on the center of the self-diagnosis subdivi-
sion screen indicates progress of the trouble diagnosis.
2. Diagnosis results are displayed after the self-diagnosis is com-
pleted. The unit names and the connection lines are color-coded
according to the diagnostic results.
NOTE:
 Only the control unit (NAVI control unit) is displayed in red.
- The screen switch colors are determined according to the following order of priority: red > yellow > gray if
multiple errors occur at the same time for a single unit.
JPNIA0173GB
SKIB3961E
SKIB3657E
Diagnosis results Unit Connection
line
Normal Green Green
Connection malfunction Gray Yellow
DVD drive undiagnosed Gray Green
DVD-ROM and DVD-ROM
drive malfunctionYellow Green
Unit malfunction
NoteRed Green
ALNIA0883GB

AV
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
AV-41
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- The comments of the self-diagnosis results can be viewed with a
component in the diagnosis result screen.
Detection range of self-diagnosis mode
 The self-diagnosis mode allows the technician to diagnose the connection in the communication line
between NAVI control unit and each unit and the internal operation of the NAVI control unit.
 Because the start condition of diagnosis function is a switch operation, the on board diagnosis function can-
not be started up if any malfunction is detected in a switch.
Self-diagnosis results
Check the applicable display at the following table, and then repair the malfunctioning parts.
Self-diagnosis result chart
JPNIA0168GB
Area with yellow connection lines DescriptionPossible malfunction location / Action
to take
NAVI control unit malfunction is de-
tected.NAVI control unit
 Malfunction is detected on DVD-
ROM drive pickup lens in NAVI con-
trol unit.
 There is dirt and damage on the
map disc. Clean the DVD-ROM drive pickup
lens in NAVI control unit using the
specified cleaning disc.
Map disc
NAVI control unit
DVD-ROM not inserted is detected. Insert map disc
ALNIA0884GB
ALNIA0885GB
ALNIA0886GB