2005 NISSAN NAVARA display

AV-4
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
PFP:00000
System FunctionsEKS00Q5X
Refer to Owner's Manual for audio system operating instructions.
AUDIO
Speed Sensitive Volume (6CD Player Type)
Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.
NATS AUDIO LINK (WITHOUT NAVIGATION SYSTEM)
Description
The link with the NATS IMMU implies that the audio unit can basically only be operated if connected to the
matching NATS IMMU to which the audio unit was initially fitted on the production line.
Since radio operation is impossible after the link with the NATS is disrupted theft of the audio unit is basically
useless since special equipment is required to reset the audio unit.
Initialization Process for Audio Units That Are Linked to The NATS IMMU
New audio units will be delivered to the factories in the “NEW” state, i.e. ready to be linked with the vehicle's
NATS. When the audio unit in “NEW” state is first switched on at the factory, it will start up communication with
the vehicle's immobilizer control unit (IMMU) and send a code (the “audio unit Code”) to the IMMU. The IMMU
will then store this code, which is unique to each audio unit, in its (permanent) memory.
Upon receipt of the code by the IMMU, the NATS will confirm correct receipt of the audio unit code to the audio
unit. Hereafter, the audio unit will operate as normal.
During the initialization process, “NEW” is displayed on the audio unit display. Normally though, communica-
tion between audio unit and IMMU takes such a short time (300 ms) that the audio unit seems to switch on
directly without showing “NEW” on its display.
Normal Operation
Each time the audio unit is switched on afterwards, the audio unit code will be verified between the audio unit
and the NATS before the audio unit becomes operational. During the code verification process, “WAIT” is
shown on the audio unit display. Again, the communication takes such a short time (300 ms) that the audio
unit seems to switch on directly without showing “WAIT” on its display.
When The Radio Is Locked
In case of a audio unit being linked with the vehicle's NATS (immobilizer system), disconnection of the link
between the audio unit and the IMMU will cause the audio unit to switch into the lock (“SECURE”) mode in
which the audio unit is fully inoperative. Hence, repair of the audio unit is basically impossible, unless the
audio unit is reset to the “NEW” state for which special decoding equipment is required.
Clarion has provided their authorized service representatives with so called “decoder boxes” which can bring
the audio unit back to the “NEW” state, enabling the audio unit to be switched on after which repair can be per-
formed. Subsequently, when the repaired audio unit is delivered to the final user again, it will be in the “NEW”
state to enable re-linking the audio unit to the vehicle's immobilizer system. As a result of the above, repair of
the audio unit can only be done by an authorized Clarion representative (when the owner of the vehicle
requests repair and can show personal identification).
Service Procedure
Item Service procedure Description
Battery disconnection No additional action required. –
Radio needs repair Repair needs to be done by authorized
representative of radio manufacturer since
radio cannot be operated unless it is reset
to NEW state, using special decoding
equipment.–
Replacement of radio by new part No additional action required. Radio is delivered in NEW state.
Transferring radio to another vehicle/
replacement of radio by an “old” partRadio needs to be reset to NEW state by
authorized representative of radio manu-
facturer.–
Replacement of IMMU Radio needs to be reset to NEW state by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute.

SYSTEM DESCRIPTION
AV-5
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AV
Personal Audio Setting
The radio is designed to store several settings (volume, bass, treble, preset stations) with every NATS ignition
key used. Up to a maximum of 4 NATS keys can be registered. During the communication mentioned under
“Anti-Theft System”, the radio will recognize the used ignition key and select the accompanying settings.
VEHICLE INFORMATION SYSTEM
lThe status of audio system, fuel consumption, rear view monitor and navigation system are displayed.
lNAVI control unit receives the data signal from ECM, combination meter via CAN communication. It calcu-
lates the values of fuel economy, and trip computer from the received information and displays them.
NAVIGATION SYSTEM
Refer to Owner's Manual or navigation system Owner's Manual for navigation system operating instructions.
Location Detection Principle
The navigation system periodically calculates the vehicle's current
position according to the following three signals:
lTravel distance of the vehicle as determined by the vehicle
speed sensor
lTurning angle of the vehicle as determined by the gyroscope
(angular velocity sensor)
lDirection 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 posi-
tion 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.
lTravel distance
Travel distance calculations are based on the vehicle speed
sensor input signal. Therefore, the calculation may become
incorrect as the tires wear down. To prevent this, an automatic
distance correction function has been adopted.
lTravel direction
Change in the travel direction of the vehicle is calculated by a
gyroscope (angular velocity sensor) and a GPS antenna (GPS
information). They have both advantages and disadvantages.
More accurate traveling direction is detected because priorities are set for the signals from these two
devices according to the situation.
No communication from IMMU to radio 1. If NATS is malfunctioning, check NATS
system.
2. After NATS is repaired, reset radio to
NEW state by authorized representative
of Clarion.After switching on the radio, the radio will
display “SECURE” after 1 minute. Further
use of radio is impossible until communica-
tion is established again, or after radio is
reset by authorized representative of Clar-
ion.
When initialized between ECM and IMMU. Radio needs to be reset to NEW status by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute. Item Service procedure Description
SKIB1058E
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 vehi-
cle speed is low.
SEL684V

AV-6
SYSTEM DESCRIPTION
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:
TheroadmapdataisbasedondatastoredinthemapDVD-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.
lIn map-matching, alternative routes to reach the destination will
be shown and prioritized, after the road on which the vehicle is
currently driven has been judged and the vehicle mark has been
repositioned.
If there is an error in distance and/or direction, alternative routes
will be shown in different order of priority, and the incorrect road
can be avoided.
If two roads are running in parallel, they are of the same priority.
Therefore, the vehicle mark may appear on either of them alter-
nately, depending on maneuvering of the steering wheel and
configuration of the road.
lMap-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.
When driving on a road not present in the map, the map-match-
ing function may find another road and position the vehicle mark
on it. Then, when the correct road is detected, the vehicle mark
may change to it.
lEffective range for comparing the vehicle position and travel
direction calculated by the distance and direction with the road
data read from the map DVD-ROM is limited. Therefore, when
there is an excessive gap between current vehicle position and
the position on the map, correction by map-matching is not possible.
SEL685V
SEL686V
SKIA0613E

AV-8
SYSTEM DESCRIPTION
Component Description
EKS00Q5Y
AUDIO UNIT
Perform AUDIO operation by AV SWITCH for models with navigation system.
NAVI CONTROL UNIT
lThe gyro (angular speed sensor) and the DVD-ROM drive are
built-in units that control the navigation functions.
lSignals are received from the gyro, the vehicle speed sensor,
and the GPS antenna. Vehicle location is determined by com-
bining this data with the data contained in the DVD-ROM map.
Locational information is shown on liquid crystal display panel.
DVD-ROM Drive
lDVD loading slot (1)
Maps, traffic control regulations, and other pertinent information can
be easily read from the DVD-ROM disc.
Map DVD-ROM
lThe map DVD-ROM has maps, traffic control regulations, and other pertinent information.
lTo improve DVD-ROM map matching and route determination functions, the DVD-ROM uses an exclusive
Nissan format. Therefore, the use of a DVD-ROM provided by other manufacturers cannot be used.
Gyro (Angular Speed Sensor)
lThe oscillator gyro sensor is used to detect changes in vehicle steering angle.
lThe gyro is built into the navigation (NAVI) control unit.
1. 1CD player type 2. 6CD player type 3. 6CD player type (With navigation
system)
SKIB4066E
SKIB4067E
SKIB4068E

SYSTEM DESCRIPTION
AV-9
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GPS ANTENNA
lGPS antenna (1)
lDisplay (2)
The GPS antenna receives and amplifies the radio waves from the
GPS satellites, and then transmits the GPS signal to NAVI control
unit.
DISPLAY UNIT
lImages on the display include RGB image such as map screen
and rear-view image displayed when set the select lever to R
range.
lNAVI control unit controls images on the display.
AV S W I T C H
For operation panel, centralized switch integrated with the audio and
NAVI operation has been adopted. The operation signal is sent to
NAVI control unit via communication.
SKIB4501E
SKIB3893E
SKIB4069E

TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
AV-39
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AV
10
(W)11
(O)TEL voice signal Output ON TEL voice output
12
(O)14
(W)Voice guidance signal Output ON Voice guidance output
13 Ground Shield (Guide voice) – ON – Approx. 0 V
44
(G)47
(B)RGB signal (R: red) Output ONStart Confirmation/
Adjustment mode, and
then display color bar
by selecting “Display
Color Spectrum Bar”
on DISPLAY DIAGNO-
SIS screen.
45
(R)47
(B)RGB signal (G: green) Output ONStart Confirmation/
Adjustment mode, and
then display color bar
by selecting “Display
Color Spectrum Bar”
on DISPLAY DIAGNO-
SIS screen.
46
(W)47
(B)RGB signal (B: blue) Output ONStart Confirmation/
Adjustment mode, and
then display color bar
by selecting “Display
Color Spectrum Bar”
on DISPLAY DIAGNO-
SIS screen.
47
(B)Ground RGB ground – ON – Approx. 0 V
48
(B)GroundRGB synchronizing sig-
nalOutput ON –
49 Ground Shield (Synchronizing) – ON – Approx. 0 VTerminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
SKIB1990E
SKIB1990E
SKIB2238J
SKIB2236J
SKIB2237J
SKIB3603E

AV-40
TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
50
(G)Ground RGB area (YS) signal Output ONSet the selector lever in
R position, and then
display the rear view
image.
Other than the above.
51
(R)GroundHorizontal
synchronizing (HP) sig-
nalInput ONSet the selector lever in
R position, and then
display the rear view
image.
52
(W)GroundVertical synchronizing
(VP) signalInput ONSet the selector lever in
R position, and then
display the rear view
image.
53
(W)GroundCommunication
signal (CONT-DISP)Output ONImage quality adjust-
ment
54
(O)GroundCommunication
signal (DISP-CONT)Input ONImage quality adjust-
ment
55 Ground Shield – ON – Approx. 0 V
61
(G)Ground Illumination signal Input ONLighting switch is ON. Approx. 12 V
Lighting switch is OFF. Approx. 0 V
63
(R)Ground Ignition signal Input ON – Battery voltage
64
(G)Ground Parking brake signal Input ONParking brake ON Approx. 0 V
Parking brake OFF Approx. 12 V Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperationSKIB3599E
SKIB3600E
SKIB3601E
SKIB3598E
PKIB5039J
PKIB5039J

TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
AV-41
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AV
Display UnitEKS00Q6F
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(LG)Ground Reverse signal Input ONSelector lever in R
position.Approx. 12V
Other than selector
lever in R position.Approx. 0 V
66
(O)GroundVehicle speed signal
(8-pulse)Input ONWhen vehicle speed is
approx. 40 km/h (25
MPH).
69
(O)–Communication
signal (H)Input/
output–– –
70
(SB)–Communication
signal (L)Input/
output–– –
71
(L)–CAN-HInput/
output–– –
72
(P)–CAN-LInput/
output–– –
73 Ground GPS signal Input ONConnector is not con-
nected.Approx. 5 V
74 Ground Shield – ON – Approx. 0 VTerminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
SKIA6649J
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
1
(G)8
(B)RGB signal (R: red) Input ONStart Confirmation/Adjust-
ment mode, and then dis-
play color bar by
selecting “Display Color
Spectrum Bar” on DIS-
PLAY DIAGNOSIS
screen.
2
(G)Ground RGB area (YS) signal Input ONSet the selector lever in R
position, and then dis-
play the rear view image.
Other than the above.
SKIB2238J
SKIB3599E
SKIB3600E