INFINITI FX35 2005 Service Manual

AV-122
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
30 (W/R) Ground Communica-
tion signal (–) Input/
output ON — System does not
work properly.
32 (BR) Ground Communica-
tion signal (+) Input/
output ON — System does not
work properly.
33 — Shield ground — — — — —
34 (Y) Ground Communica-
tion signal (–) Input/
output ON — System does not
work properly.
36 (PU) Ground Display Com-
munication
signal
(DCU-DSP) Output ON
Press the “TRIP”
button. Though a screen
is displayed, it is
impossible to
adjust bright-
ness.
37 — Shield ground — — — — —
38 (LG) Ground Display Com-
munication
signal
(DSP-DCU) Input ON
Press the “TRIP”
button. Though a screen
is displayed, it is
impossible to
adjust bright-
ness.
39 — Shield ground — — — — —
40 (LG) Ground Audio
Communica-
tion signal Output ON
Operate audio
volume. Audio dose not
operate properly.
41 — Shield ground — — — — — Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltag e Example of
symptom
+– Ignition
switch Operation
SKIA0176E
SKIA0175E
SKIA0176E
SKIA4364E
SKIA4363E
SKIA4403E

NAVIGATION SYSTEM AV-123
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Revision: 2005 July 2005 FX
42 (B/Y) Ground Audio
communica-
tion signal Input ON
Operate audio
volume. Audio dose not
operate properly.
43 (G/B) 41 RGB synchro-
nizing signal Input ON Press the “MAP”
button. RGB screen is
rolling.
44 (R/W) 45 RGB signal
(R: red) Input ON Select “Display
Diagnosis (NAVI)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks bluish.
45 — Shield ground — — — — —
46 (R/L) 45 RGB signal
(G: green) Input ON Select “Display
Diagnosis (NAVI)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks reddish.
47 — Shield ground — — — — —
48 (B) 45 RGB signal
(B: blue) Input ON Select “Display
Diagnosis (NAVI)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks yellowish.
49 — Shield ground — — — — —
50 (L/R) 47 RGB signal
(R: red) Output ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks bluish.
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
SKIA4402E
SKIA0164E
SKIA4977E
SKIA4978E
SKIA4979E
SKIA4980E

AV-124
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
51 (B) 49 RGB area
(YS) signal Output ON Press the“TRIP”
button. RGB screen is
not shown.
52 (L/W) 47 RGB signal
(G: green) Output ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks reddish.
53 (W) 49 Vertical syn-
chronizing
(VP) signal Input ON
Selector lever in
R position. Rear view moni-
tor screen is roll-
ing.
54 (L) 47 RGB signal
(B: blue) Output ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks yellowish.
55 (R) 49 Horizontal
synchroniz-
ing (HP) sig-
nal Input ON —
RGB screen is
not shown.
56 (G) 49 RGB synchro-
nizing signal Output ON Press the “TRIP”
button. RGB screen is
rolling.
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltag e Example of
symptom
+– Ignition
switch Operation
SKIA0162E
SKIA4981E
SKIA0161E
SKIA4982E
SKIA4983E
SKIA0164E

NAVIGATION SYSTEM AV-125
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Revision: 2005 July 2005 FX
Terminals and Reference Value for DisplayAKS007IX
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
1 (B) Ground Ground — ON — Approx. 0 V —
2 (W/G) Ground Power supply
(Inverter) Input ON — Approx. 9 V Screen is not
shown.
3 (BR/W) Ground Power supply
(Signal) Input ON — Approx. 9 V Screen is not
shown.
6 (L/W) 7 RGB signal
(G: green) Input ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks reddish.
7 — Shield ground — — — — —
8 (R) 21 Horizontal syn-
chronizing (HP)
signal Output ON —
RGB screen
is not shown.
9 (B) 21 RGB area (YS)
signal Input ON Press the “TRIP”
button. RGB screen
is not shown.
11 ( P U ) 2 3 Display communi-
cation signal
(DCU-DSP) Input ON — Though a
screen is dis-
played, it is
impossible to
adjust bright-
ness.
13 (P) Ground (Inverter) Ground — ON — Approx. 0 V —
14 (P/L) Ground (Signal) Ground — ON — Approx. 0 V —
17 (L/R) 7 RGB signal
(R: red) Input ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks bluish.
SKIA4981E
SKIA4983E
SKIA0162E
SKIA4364E
SKIA4980E

AV-126
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
18 (L) 7 RGB signal
(B: blue) Input ON Select “Display
Diagnosis (DCU)”
of CONFIRMA-
TION/ADJUST-
MENT function. RGB screen
looks yellow-
ish.
19 (G) 21 RGB synchroniz-
ing signal Input ON Press the “TRIP”
button. RGB screen
is rolling.
20 (W) 21 Vertical synchro-
nizing (VP) signal Output ONSelector lever in
R position. Rear view
monitor
screen is roll-
ing.
21 — Shield ground — — — — —
22 (LG) 23 Display communi-
cation signal
(DSP-DCU) Output ON – Though a
screen is dis-
played, it is
impossible to
adjust bright-
ness.
23 — Shield ground — — — — —
Terminal No. (Wire color) Item Signal
input/
output Condition
Voltag e Example of
symptom
+– Ignition
switch Operation
SKIA4982E
SKIA0164E
SKIA0161E
SKIA4363E

NAVIGATION SYSTEM AV-127
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Revision: 2005 July 2005 FX
Terminals and Reference Value for A/C and AV SwitchAKS007IY
Terminal No.
(Wire color) Item Signal
input/
output Condition
Vo l ta g e Example of
symptom
+– Ignition
switch Operation
1 (W/L) Ground Battery power
supply Input OFF — Battery voltage System does not
work properly.
2 (LG/R) Ground ACC power
supply Input ACC — Battery voltage System does not
work properly.
3 (R/L) Ground Illumination
signal Input OFF Lighting switch is
ON (position 1). Approx. 12 V
A/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON(position 1).
Turn lighting switch
OFF. Approx. 0 V
4 (R/Y) Ground Illumination
control signal Output ON Illumination control
switch is operated
by lighting switch in 1st or 2nd position. Changes between approx.0 V
and approx.12 V Audio unit illumi-
nation can not be
controlled.
5 (B) Ground Ground — ON — Approx. 0 V —
6 (B/R) Ground Communica-
tion signal (+) Input/
Output ON — System does not
work properly.
7— Shield
ground —— — — —
8 (W/R) Ground Communica-
tion signal (–) Input/
Output ON — System does not
work properly.
SKIA0175E
SKIA0176E

AV-128
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
On Board Self-Diagnosis FunctionAKS007IZ
DESCRIPTION

Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/
ADJUSTMENT mode operated manually.

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 LCD screen.

CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and
judgment by an operator (malfunction that cannot be automatically judged by the system), to check/
change the set value, and to display the History of Errors of the navigation system.
DIAGNOSIS ITEM
NOTE:
Make the status that is set by D/N function be shown. Mode Description
Self-diagnosis (DCU) Display control unit diagnosis
Self-diagnosis (NAVI)

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

Analyzes connection between the NAVI control unit and the GPS
antenna connection between the NAVI control unit and each unit, and
operation of each unit.
Confirmation/
Adjustment Display diagnosis
On display control unit mode, color tone and shading of the screen can be
checked by the display of a color bar and a gray scale.
Vehicle signals On display control unit mode, analyzes the following vehicle signals: Vehi-
cle speed signal, light signal
NOTE , ignition switch signal, and reverse sig-
nal.
Auto Climate Control A/C self-diagnosis of A/C system.
Navigation Display diagnosis
On NAVI C/U mode, color tone and shading of the screen can be checked
by the display of a color bar and a gray scale.
Vehicle signals On NAVI C/U mode, analyzes the following vehicle signals: Vehicle speed
signal, light signal, ignition switch signal, and reverse signal.
History of Errors Diagnosis results previously stored in the memory (before turning ignition
switch ON) are displayed in this mode. Time and location when/where the
errors occurred are also displayed.
Navigation Display Longi-
tude & Latitude Display the map. Use the joystick to adjust position. Longitude and latitude
will be displayed.
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
immediately restores system accuracy in cases such as when distance
calibration is needed because of the use of tire chains in inclement
weather.
Angle
adjustment Corrects difference between actual turning angle of a vehicle and turning
angle of the car mark on the display.
Initialize
Location This mode is for initializing the current location. Use when the vehicle is
transported a long distance on a trailer, etc.
CAN DIAG SUPPOPT MONITOR Display status of CAN communication.

NAVIGATION SYSTEM AV-129
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Revision: 2005 July 2005 FX
Self-Diagnosis Mode (DCU)AKS007J0
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MUTE/ II ” button, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)

Shifting from current screen to previous screen is performed
by pressing “PREV” button.
4. The initial trouble diagnosis screen will be shown, and items “Self-Diagnosis (DCU)”,“Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
5. Perform self-diagnosis by selecting the “Self-diagnosis (DCU)”.

Self-diagnosis subdivision screen will be shown and the oper-
ation enters the self-diagnosis mode.

A bar graph shown below the self-diagnosis subdivision
screen indicates progress of the diagnosis.
6. When the self-diagnosis completes, optional part confirmation screen will be shown.

When connection of an optional part is judged error, a screen
to check if the optional part is actually fitted on the vehicle or
not will be shown. When fitted, select the switch of the part on
the screen and press “End”. Then the “SELF DIAGNOSIS”
screen will be shown.

When the optional part is connected normally, the switch for
the part will not appear on the screen.
PKIB4131E
SKIA4207E
SKIA4208E
SKIA4209E

AV-130
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
7. On the “SELF DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.

If several malfunctions are present in a unit, color of its switch
on the screen will be either red, yellow, or gray, determined by
the malfunction of the highest priority.
8. Select a switch on the “SELF DIAGNOSIS” screen and com- ments for the diagnosis results will be shown.

When the switch is green, the following comment will be
shown. “Self-diagnosis was successful. Further diagnosis and
adjustments are recommended. Follow the “confirmation/
adjustments” menu or refer to the service manual.”.

When the switch is yellow, the following comment will be
shown. “Connection to the following unit is abnormal. See the
service manual for further details”.

When the switch is red, the following comment will be shown.
“DCU is abnormal”.
SELF–DIAGNOSIS RESULT
Quick Reference Table
1. Select an malfunctioning diagnosis No. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis number table and perform check by referring to AV-
11 4 , "Wiring Diagram — COMM —" .
3. Turn the ignition switch OFF and perform self-diagnosis again.
*: DCU = Display control unit
CAUTION:

When A/C and AV switch has a malfunction, self–diagnosis cannot be started.

When display has a malfunction, self–diagnosis cannot be started.

Check the following when the self-diagnosis mode cannot be used.
–AV communication line between display control unit and A/C and AV switch. Refer to AV- 1 5 4 , "AV
Communication Line Check (Between Display Control Unit and A/C and AV Switch)" .
–A/C and AV switch power supply and ground circuit. Refer to AV- 1 4 5 , "Power Supply and Ground
Circuit Check for A/C and AV Switch" .
–Display power supply and ground circuit. Refer to AV- 1 4 4 , "Power Supply and Ground Circuit
Check for Display" .
Green : No malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
SKIA4210E
SKIA4211E
Screen switch Diagnosis
No.
Switch color DCU* Display Audio unit Navigation GPS antenna
Red × 1
Ye l l o w xx 2
×× 3
××× 4

NAVIGATION SYSTEM AV-131
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Revision: 2005 July 2005 FX
Self-Diagnosis Codes
Self-Diagnosis Mode (NAVI)AKS007J1
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MUTE/ II ” button, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)

Shifting from current screen to previous screen is performed
by pressing “PREV” button.
4. The initial trouble diagnosis screen will be shown, and items “Self-Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
5. Perform self-diagnosis by selecting the “Self-diagnosis (NAVI)”.

Self-diagnosis subdivision screen will be shown and the oper-
ation enters the self-diagnosis mode.

A bar graph shown below the self-diagnosis subdivision
screen indicates progress of the diagnosis.
6. On the “SELF DIAGNOSIS” screen, each unit name will be col- ored according to the diagnosis result, as follows.

If several malfunctions are present in a unit, color of its switch
on the screen will be either red, yellow, or gray, determined by
the malfunction of the highest priority.
Diagnosis No. Possible cause Reference page
1 Display control unit malfunction AV-181
2 Display communication line between display control unit and display.AV-152
3 Audio unit power supply and ground circuit.
Audio communication line between display control unit and audio unit. AV-150
4 AV communication line check (between display control unit and NAVI control unit)
AV-149
PKIB4131E
SKIA4207E
SKIA4212E
Green : No malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
SKIA4214E