NISSAN TIIDA 2007 Service Service Manual

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
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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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

AV-42
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
COMFIRMATON/ADJUSTMENT MODE
1. Start the diagnosis function and select “Confirmation / Adjustment”. The confirmation/adjustment mode
indicates where each item can be checked or adjusted.
2. Select each switch on the “Confirmation / Adjustment Mode”
screen to display the relevant trouble diagnosis screen. Press
the “BACK” switch to return to the initial “Confirmation / Adjust-
ment Mode” screen.
Malfunction is detected on communi-
cation signal between NAVI control
unit and audio unit.NAVI control unit
 Audio unit
GPS antenna connection malfunction
is detected. GPS antenna
 GPS antenna feeder
Malfunction is detected on communi-
cation signal between NAVI control
unit and display unit.NAVI control unit
 Display unit Area with yellow connection lines DescriptionPossible malfunction location / Action
to take
ALNIA0887GB
ALNIA0888GB
ALNIA0889GB
SKIB4658E

AV
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
AV-43
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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The tint of the color bar indication is as per the following list if RGB signal error is detected.
Vehicle Signals
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Sp ea ke r Tes t
JPNIA0169GB
R (red) signal error : Light blue (Cyan) tint
G (green) signal error : Purple (Magenta) tint
B (blue) signal error : Yellow tint
SKIB3663E
Diagnosis item Display Vehicle status Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by approximate-
ly 1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
— Ignition switch ACC
Parking brakeON Parking brake is applied.
OFF Parking brake is released.
LightsON Light switch ON
—
OFF Light switch OFF
IgnitionON Ignition switch ON
—
OFF Ignition switch in ACC position
ReverseON Selector lever in R position
Changes in indication may be delayed by approximate-
ly 1.5 seconds. This is normal. OFFSelector lever in any position other
than R
— Ignition switch ACC

AV-44
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
Select “SPEAKER TEST” to display the Speaker Diagnosis screen.
Press “START and NEXT” to generate a test tone in a speaker.
Press “Start” to generate a test tone in the next speaker. Press
“Stop” to stop the test tones.
NOTE:
The frequency of test tone emitted from each speaker is as follows.
Navigation
STEERING ANGLE ADJUSTMENT
The steering angle output value detected with the gyroscope is
adjusted.
SPEED CALIBRATION
During normal driving, distance error caused by tire wear and tire
pressure change is automatically adjusted for by the automatic dis-
tance correction function. This function, on the other hand, is for
immediate adjustment, in cases such as driving with tire chain fitted
on tires.
ERROR HISTORY
The diagnostic results of “Self-diagnosis” determine if any malfunction occurred between selecting “Self-diag-
nosis” and displaying “Self-diagnostic Results”.
The trouble diagnosis result will be judged normal if an error occurred before the ignition switch was turned
ON and does not occur again until “Self-diagnosis” is completed. Therefore, errors in the past which cannot be
found by “Self-diagnosis”, must be found by checking the “Error record”.
The error history shows the error occurrence frequency in past. The frequency of occurrence is displayed by 2
types: the count down type and the count up type. Select either type according to the error item.
In “Error History” of models with NAVI, time and place that the selected error last occurred are displayed. Be
careful about the following.
 The correct date of occurrence may not be able to be displayed if there is a malfunction with the GPS
antenna circuit board in the NAVI control unit.
 Place of the error occurrence is represented by the position of the current location mark at the time an error
occurred. If current location mark has deviated from the correct position, then the place of the error occur-
rence cannot be located correctly.Tweeter : 3 kHz
Front door speaker : 300 Hz
Rear door speaker : 1 kHz
SKIB4686E
SKIB3684E
SKIB3685E

AV
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
AV-45
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
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Transition Screen
Count Down Type
 Set the counter to 40 when the error is detected. The counter decreases by 1 if the system is normal when
turning the ignition switch ON.
 The lower limit of the counter is 1. It can be reset to 0 by “Delete log” switch or CONSULT-III.
Count Up Type The counter increases 1 when the ignition switch is turned ON and the error is detected. The counter does
not decrease even if it is normal when the ignition switch is turned ON the next time.
 The upper limit of the counter is 50. 51 or more is displayed as 50. It can be reset to 0 by “Delete log” switch
or CONSULT-III.
Error Item Some error items may be displayed simultaneously according to the cause. The detection of the cause can
be performed by the combination of display items if some error items are displayed simultaneously.
SKIB3687E
Display type of occur-
rence frequencyError history display item
Count down type CAN_COMM_CIRCUIT, CONTROL UNIT (CAN), AV COMM CIRCUIT, CONTROL UNIT (AV)
Count up type Other than the above
Error item Description Possible cause/Action to take
CAN_COMM_CIRCUITCAN communication malfunction is de-
tected.Perform the diagnosis using CONSULT-III,
and then repair the malfunctioning parts
based on diagnostic results.
Refer to AV- 4 8 , "
CONSULT - III Function
(MULTI AV)".
CONTROL UNIT (CAN) CAN initial diagnosis malfunction is de-
tected.NAVI control unit
CONTROL UNIT (AV) AV communication circuit initial diagno-
sis malfunction is detected. NAVI control unit
 AV COMM CIRCUIT
 Switches Connection Error
 Audio Unit Connection Error
 Amplifier Connection Error
 RDS-TMC Error Audio unit power supply and ground
circuit malfunction is detected.
 Malfunction is detected on communi-
cation circuit between Audio unit and
NAVI control unit.
 Malfunction is detected on communi-
cation signal between audio unit and
NAVI control unit. Audio unit power supply and ground cir-
cuit
 Communication circuit between audio
unit and NAVI control unit