ACC NISSAN TIIDA 2007 Service User Guide

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-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-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

AV-50
< FUNCTION DIAGNOSIS >[AUDIO WITH NAVIGATION]
DIAGNOSIS SYSTEM (NAVI CONTROL UNIT)
ALL SIGNALS
 Displays the status of the following vehicle signals inputted to the NAVI control unit.
 For each signal, actual signal can be compared with the condition recognized on the system.
SELECTION FROM MENU
Allows the technician to select which vehicle signals should be displayed and displays the status of the
selected vehicle signals.
AV communication monitor
AV&NAVI C/U
 Displays the communication status from NAVI control unit to each unit as well as the error counter.
 The error counter displays “OK” if no malfunction was detected in the past and displays “0” if a malfunction is
detected. It increases by 1 if the condition is normal at the next ignition switch ON cycle. The upper limit of
the counter is 39.
AUDIO
 Displays the NAVI control unit communication status and the error counter.
Display ItemDis-
playVehicle status Remarks
VHCL SPD SIGON Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is
normal.
OFF Vehicle speed =0 km/h (0 MPH)
PKB SIGON Parking brake is applied.
Changes in indication may be delayed. This is
normal.
OFF Parking brake is released.
ILLUM SIGON Lighting switch ON
—
OFF Lighting switch OFF
IGN SIGON Ignition switch ON
—
OFF Ignition switch in ACC position
REV SIGON Selector lever in R position
Changes in indication may be delayed. This is
normal.
OFFSelector lever in any position other
than R
Item to be selected Description
VHCL SPD SIG
The same as when “ALL SIGNALS”
is selected. PKB SIG
ILLUM SIG
IGN SIG
REV SIG
Items Display (Current)Malfunction
counter
(Past)
TRANSMIT DIAG OK / UNKWN OK / 0 – 39
PANEL SWITCH OK/ UNKWN OK / 0 – 39
SW SECONDARY — —
RR CONTROL SW — —
STEERING SW OK / UNKWN OK / 0 – 39
AUDIO OK / UNKWN OK / 0 – 39
SPEAKER AMP OK / UNKWN OK / 0 – 39
FM MULTI OK / UNKWN OK / 0 – 39

AV-54
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
U1310 NAVI CONTROL UNIT
U1310 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728652
Replace the NAVI control unit if this DTC is displayed. Refer to XX-XX, "*****".
DTC LogicINFOID:0000000001728653
Part name Description
NAVI CONTORL 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 control
unit by means of communication. It operates each system according to com-
munication 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).
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Action to take
U1310CONTROL UNIT (AV)
[U1310]An initial diagnosis error is detected in AV communication
circuit.Replace NAVI control unit.

AV
U1200 NAVI CONTROL UNIT
AV-55
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
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U1200 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728654
Replace the NAVI control unit if this DTC is displayed. Refer to XX-XX, "*****".
DTC LogicINFOID:0000000001728655
Part name Description
NAVI CONTORL 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 control
unit by means of communication. It operates each system according to com-
munication 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).
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Action to take
U1200Cont Unit
FLASH- ROM
[U1200]An internal malfunction is detected in NAVI control unit
(FLASH-ROM).Replace NAVI control unit.

AV-56
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
U1201 NAVI CONTROL UNIT
U1201 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728656
Replace the NAVI control unit if this DTC is displayed. Refer to XX-XX, "*****".
DTC LogicINFOID:0000000001728657
Part name Description
NAVI CONTORL 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 control
unit by means of communication. It operates each system according to com-
munication 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).
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Action to take
U1201GYRO NO CONN
[U1201]Internal malfunction of NAVI control unit (gyrocompass
disconnection) is detected.Replace NAVI control unit.