2007 INFINITI FX35 ACC

AV-88
INTEGRATED DISPLAY SYSTEM
Revision: 2006 July 2007 FX35/FX45
Tint Is Strange for The RGB ImageNKS003JO
Symptom: Tint of all RGB images is strange.
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit and display connectors.
3. Check the malfunctioning circuit according to the symptoms.

Light blue (Cyan) tinged screen
Check continuity between display control unit harness connector
(A) M76 terminal 50 and display harness connector (B) M63 ter-
minal 17.
Check continuity between display control unit harness connector
(A) M76 terminal 50 and ground.

Purple (Magenta) tinged screen
Check continuity between display control unit harness connector
(A) M76 terminal 52 and display harness connector (B) M63 ter-
minal 6.
Check continuity between display control unit harness connector
(A) M76 terminal 52 and ground.

Yellow tinged screen
Check continuity between display control unit harness connector
(A) M76 terminal 54 and display harness connector (B) M63 ter-
minal 18.
Check continuity between display control unit harness connector
(A) M76 terminal 54 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector. 50 – 17 : Continuity should exist.
50 – Ground : Continuity should not exist.
SKIB7853E
52 – 6 : Continuity should exist.
52 – Ground : Continuity should not exist.
SKIB7854E
54 – 18 : Continuity should exist.
54 – Ground : Continuity should not exist.
SKIB7855E

INTEGRATED DISPLAY SYSTEM AV-89
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Revision: 2006 July 2007 FX35/FX45
2. CHECK RGB SIGNAL
1. Connect display control unit and display connectors.
2. Turn ignition switch ON.
3. Start Confirmation/Adjustment mode. Refer to AV- 7 9 , "
Confirmation/Adjustment Mode" .
4. Display color bar by selecting “Display Color Spectrum Bar” on Display Diagnosis screen. Refer to AV- 8 0 ,
"DISPLAY DIAGNOSIS" .
5. Check the malfunctioning circuit according to the symptoms.

Light blue (Cyan) tinged screen
Check voltage waveform between display control unit harness
connector M76 terminal 50 and ground with CONSULT-II or
oscilloscope.

Purple (Magenta) tinged screen
Check voltage waveform between display control unit harness
connector M76 terminal 52 and ground with CONSULT-II or
oscilloscope.

Yellow tinged screen
Check voltage waveform between display control unit harness
connector M76 terminal 54 and ground with CONSULT-II or
oscilloscope.
OK or NG
OK >> Replace display.
NG >> Replace display control unit. 50 – Ground:
SKIB7856ESKIB7769E
52 – Ground:
SKIB7857ESKIB7770E
54 – Ground:
SKIB7858ESKIB7771E

AV-94
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
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 DVD-ROM,
which is stored in the DVD-ROM drive (map-matching), and indi-
cated on the screen as a current-location 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
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.

Travel 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 selected because priorities are set for the signals from these two
devices according to the situation.
SKIB1058E
SEL684V
Type Advantage Disadvantage
Gyroscope (angular velocity sen-
sor) 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.

AV-96
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
GPS (Global Positioning System)
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
(13,100 miles).
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). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), and utilize the altitude data cal-
culated previously with radio waves from four or more GPS satellites
(two-dimensional positioning).
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.
SEL526V

NAVIGATION SYSTEM AV-113
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for NAVI Control UnitNKS003K8
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (B) Ground Ground — ON — Approx. 0 V
2 (Y) Ground Battery power supply Input OFF — Battery voltage
5 (LG) Ground ACC power supply Input ACC — Battery voltage
12 (LG) 14 (PU) Voice guidance signal Output ON Press “GUIDE/VOICE”
button
13 — Shield — — — —
35 (B) Ground Ground — ON — Approx. 0 V
44 (R) Ground RGB signal (R: red) Output ON Start Confirmation/Adjust-
ment (Navigation) mode,
and then display color bar
by selecting “Color Spec-
trum bar” on Display Diag-
nosis screen
45 (W) Ground RGB signal (G: green) Output ON Start Confirmation/Adjust-
ment (Navigation) mode,
and then display color bar
by selecting “Color Spec-
trum bar” on Display Diag-
nosis screen
46 (B) Ground RGB signal (B: blue) Output ON Start Confirmation/Adjust-
ment (Navigation) mode,
and then display color bar
by selecting “Color Spec-
trum bar” on Display Diag-
nosis screen
47 — Shield — — — —
48 (G) Ground RGB synchronizing
signal Output ON When displaying RGB
image
49 — Shield — — — —
61 (R) Ground Illumination signal Input OFF Lighting switch ON Approx. 12 V
Lighting switch OFF Approx. 0 V
63 (G) Ground Ignition signal Input ON — Battery voltage
65 (OR) Ground Reverse signal Input ON Selector lever in R position Approx. 12 V
Selector lever except in R
position Approx. 0 V
SKIB3609E
SKIB7360E
SKIB7361E
SKIB7362E
SKIB3603E

NAVIGATION SYSTEM AV-115
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for Display Control UnitNKS003K9
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (W/L) Ground Battery power supply Input OFF — Battery voltage
2 (W/G) Ground Power supply
(Inverter) Output ON — Approx. 9 V
3 (B) Ground Ground — ON — Approx. 0 V
4 (BR/W) Ground Power supply (Signal) Output ON — Approx. 9 V 5 (P) Ground Ground (Inverter) — ON — Approx. 0 V
6 (OR) Ground Reverse signal Input ON Selector lever in R position Approx. 12 V
Selector lever except in R
position Approx. 0 V
7 (P/L) Ground Ground (Signal) — ON — Approx. 0 V
10 (LG) Ground ACC power supply Input ACC — Battery voltage 12 (W) Ground Ignition signal Input ON — Battery voltage13 (B) Ground Ground — ON — Approx. 0 V
14 (R/L) Ground Illumination signal Input OFF Lighting switch ON Approx. 12 V
Lighting switch OFF Approx. 0 V
16 (G) Ground Vehicle speed signal
(8-pulse) Input ON
When vehicle speed is
approx. 25 MPH (40 km/h) NOTE:
Maximum voltage may be 5 V
due to specifications (connected
units).
25 (L) — CAN-H — — — —
26 (P) — CAN-L — — — —
28 (PU) Ground Communication
signal (+) Input/
Output ON —
29 — Shield — — — —
30 (LG) Ground Communication
signal (–) Input/
Output ON —
PKIA1935E
SKIB7378E
SKIB7379E

NAVIGATION SYSTEM AV-121
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for A/C and AV SwitchNKS003KB
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (W/L) Ground Battery power supply Input OFF — Battery voltage 2 (LG) Ground ACC power supply Input ACC — Battery voltage
5 (B) Ground Ground — ON — Approx. 0 V
6 (PU) Ground Communication
signal (+) Input/
Output ON —
7 — Shield — — — —
8 (LG) Ground Communication
signal (–) Input/
Output ON —
SKIB7378E
SKIB7379E

AV-122
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
Special Note for Trouble DiagnosisNKS003KD
Prior to performing trouble diagnosis, make sure there are no corresponding description in the “Example of
Symptoms Possible No Malfunction”. Refer to AV- 1 5 2 , "
Example of Symptoms Possible No Malfunction" .
On Board Self-Diagnosis FunctionNKS003KE
DESCRIPTION

Trouble diagnosis function of navigation system has a Self Diagnosis mode by automatic operation and a
Confirmation/Adjustment mode by manual operation.

Self Diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the display.

Confirmation/Adjustment mode displays trouble diagnosis that require an operation and a judgment by a
human (auto-decision cannot be performed by the system), confirmation of preset value, and an error his-
tory.
DIAGNOSIS ITEM
Mode Description
Self Diagnosis (DCU)

Display control unit diagnosis

Analyzes connection between the display control unit and each unit, and
operation of each unit.
Self Diagnosis (NAVI)

NAVI control unit diagnosis (DVD-ROM drive will not be diagnosed
when no DVD-ROM is in it.).

Analyzes connection between the NAVI control unit and the GPS
antenna.
Confirmation/
Adjustment Display Diagnosis
Color tone and shading of the display control unit-generated image can be
checked by the display of a color bar and a gray scale.
Vehicle Signals Diagnosis of signals that are input to display control unit can be performed
for Vehicle Speed, IGN, Reverse and Light.
Auto Climate Control Refer to ATC-52, "
Self-diagnosis Function" .
Navigation Display Diagnosis
Color tone and shading of the NAVI control unit-generated image can be
checked by the display of a color bar and a gray scale.
Vehicle Signals Diagnosis of signals that are input to NAVI control unit can be performed
for Vehicle speed, Lights, Ignition and Reverse.
Navigation Steering
Angle
Adjustment This mode is used to correct difference between actual turning angle of a
vehicle and turning angle of the vehicle mark on the display.
Speed
Calibration Under ordinary conditions, the navigation system distance measuring
function will automatically compensate for minute decreases in wheel and
tire diameter caused by tire wear or low-pressure. Speed Calibration can
immediately restore system accuracy in cases such as when distance cal-
ibration is needed because of the use of tire chains.
Error History Malfunctions that occurred in the past are displayed, along with the num-
ber of times each has occurred. Time and location when/where the errors
occurred are also displayed.
Delete Unit Connection Log Erase the connection history of unit and error history.
CAN DIAG SUPPOPT MONITOR The transmitting/receiving of CAN communication can be monitored.