INFINITI FX35 2005 Service Manual

AV-132
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
7. 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.
“Center Control Unit is abnormal”.

When the switch is gray, the following comment will be shown. “Self-diagnosis for DVD-ROM DRIVER
of NAVI was not performed because no DVD-ROM was available.”.
SELF–DIAGNOSIS RESULT
Quick Reference Table
1. Select an malfunctioning diagnosis number. 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.
*: Navigation = NAVI 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.
–NAVI control unit power supply and ground circuit. Refer to AV- 1 4 2 , "Power Supply and Ground
Circuit Check for NAVI Control Unit" .
–AV communication line between display control unit and NAVI control unit. Refer to AV- 1 4 9 , "AV
Communication Line Check (Between Display Control Unit and NAVI Control Unit)" .
–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" .
Self-diagnosis Codes
SKIA4211E
Screen switch
Diagnosis No.
Switch color Navigation* GPS antenna
Red × 1
Gray × 2
Ye l l o w ×
3
× 4
×× 5
Diagnosis
No. Possible cause Reference
page
1 NAVI control unit malfunction AV- 1 8 0
2 No map DVD-ROM is inserted in the NAVI control unit.AV- 1 5 5

NAVIGATION SYSTEM AV-133
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2005 July 2005 FX
Confirmation/Adjustment ModeAKS007J2
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. When “Confirmation/Adjustment” is selected on the initial trouble diagnosis screen, the operation will enter the CONFIRMATION/
ADJUSTMENT mode. In this mode, check and adjustment of
each item will become possible.
6. The initial screen will be shown, and items “Display Diagno- sis”,“Vehicle Signals”,“Auto Climate Control” and “Navigation”
will become selective.
7. Select each switch on “CONFIRMATION/ADJUSTMENT” screen to display the relevant diagnosis screen.
3 When “DVD-ROM error. Please check disc.” is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
2. Check ejected DVD-ROM for dirt, damage, and warpage.
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diagnosis again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the map DVD-
ROM is malfunctioning. AV-155
4
If “Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance with
service manual” is shown, carry out same inspection as diagnosis No. 3. AV-155
5 GPS antenna system
1. Visually check for a broken wire in the GPS antenna coaxial cable.
2. Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS antenna. If the con-
nection is still malfunction after the replacement of the GPS antenna, the NAVI control unit is malfunction-
ing. AV-156
Diagnosis
No. Possible cause Reference
page
PKIB4131E
SKIA4207E
SKIA4220E

AV-134
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
DISPLAY DIAGNOSIS

When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

When the color of the screen looks unusual, refer to AV- 1 6 0 , "Color of RGB Image Is Not Proper (All
Screens Looks Bluish)" , AV- 1 6 1 , "Color of RGB ImageIs Not Proper (All Screens Looks Reddish)" and
AV- 1 6 2 , "
Color of RGB Image Is Not Proper (All Screens Looks Yellowish)" .
VEHICLE SIGNALS

A comparison check can be made of each actual vehicle signal
and the signals recognized by the system.
CAUTION:
In case of confirming light signal, set D/N mode to ON/OFF
of lighting switch (normal setting).

OFF: D (Day mode)

ON: N (Night mode)
Unless above setting, light signal (ON/OFF) may not be
accurately displayed.
SKIA0362E
R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish
SKIA1997E
Diagnosis item Display Condition Remarks
Vehicle speed ON Vehicle speed > 0km/h (0MPH)
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal.
OFF Vehicle speed = 0km/h (0MPH)
– Ignition switch in ACC position
Light ON Lighting switch ON
–
OFF Lighting switch OFF
IGN ON Ignition switch ON
–
OFF Ignition switch ACC
Reverse ON Selector lever in R position
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal.
OFF Selector lever in other than R position
– Ignition switch in ACC position

NAVIGATION SYSTEM AV-135
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2005 July 2005 FX

If vehicle speed is NG, refer to AV- 1 4 6 , "Vehicle Speed Signal Check for Display Control Unit" .

If light is NG, refer to AV- 1 4 8 , "Illumination Signal Check for Display Control Unit" .

If IGN is NG, refer to AV- 1 4 8 , "Ignition Signal Check for Display Control Unit" .

If reverse is NG, refer to AV- 1 4 9 , "Reverse Signal Check for Display Control Unit" .
AUTO CLIMATE CONTROL
Refer to ATC Automatic Air Conditioner AT C - 5 3 , "Self-diagnosis Function" for details.
NAVIGATION
1. The initial screen will be shown, and items “Display Diagnosis”,
“Vehicle Signals”, “History of Errors” and “Navigation” will
become selective.
2. Select each switch on “CONFIRMATION/ADJUSTMENT” screen to display the relevant diagnosis screen.
DISPLAY DIAGNOSIS

When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

When the color of the screen looks unusual, refer to AV- 1 5 7 , "Color of RGB Image Is Not Proper (NAVI
Screen Looks Bluish)" , AV- 1 5 8 , "Color of RGB Image Is Not Proper (NAVI Screen Looks Reddish)" and
AV- 1 5 9 , "
Color of RGB Image Is Not Proper (NAVI Screen Looks Yellowish)" .
SKIA4226E
SKIA0362E
R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish

AV-136
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
VEHICLE SIGNALS

A comparison check can be made of each actual vehicle signal
and the signals recognized by the system.
CAUTION:
In case of confirming light signal, set D/N mode to ON/OFF
of light switch (normal setting).

OFF: D (Day mode)

ON: N (Night mode)
Unless above setting, light signal (ON/OFF) may not be
accurately displayed.

If vehicle speed is NG, refer to AV- 1 4 5 , "Vehicle Speed Signal Check for NAVI Control Unit" .

If light is NG, refer to AV- 1 4 8 , "Illumination Signal Check for Display Control Unit" .

If IGN is NG, refer to AV- 1 4 8 , "Ignition Signal Check for NAVI Control Unit" .

If reverse is NG, refer to AV- 1 4 8 , "Reverse Signal Check for NAVI Control Unit" .
HISTORY OF ERRORS
SKIA1997E
Diagnosis item Display Condition Remarks
Vehicle speed ON Vehicle speed > 0km/h (0 MPH)
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal.
OFF Vehicle speed = 0km/h (0 MPH)
— Ignition switch in ACC position
Light ON Lighting switch ON
—
OFF Lighting switch OFF
IGN ON Ignition switch ON
—
OFF Ignition switch ACC
Reverse ON Selector lever in R position
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal.
OFF Selector lever in other than R position
— Ignition switch in ACC position
SKIA0366E

NAVIGATION SYSTEM AV-137
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2005 July 2005 FX
DIAGNOSIS BY HISTORY OF ERRORS
The “Self-diagnosis” results indicate whether an error occurred during the period from when the ignition switch
is turned to ON until “Self-diagnosis” is completed.
If an error occurred before the ignition switch was turned to ON and does not occur again until the “Self-diag-
nosis” is completed, the diagnosis result will be judged normal. Therefore, those errors in the past, which can-
not be found by the “Self-diagnosis”, must be found by diagnosing the “History of Errors”.
The History of Errors displays the time and place of the most recent occurrence of that error. However, take
note of the following points.

Correct time of the error occurrence may not be displayed when the GPS antenna substrate within the
NAVI control unit has malfunctioned.

Place of the error occurrence is represented by the position of the current-location mark at the time when
the error occurred. If the current-location mark has deviated from the correct position, then the place of
the error occurrence max be located correctly.

The maximum number of occurrences which can be stored is 50. For the 51st and later occurrences, the
displayed number remains 50.
When a reproducible malfunction occurred but its cause cannot be identified because several errors are
present, record the item, number and place (longitude/latitude) of error occurrence (or delete the History of
Errors), then turn the ignition switch from OFF to ON to reproduce the malfunction. Check the History of Errors
to find the items which show an increased number of occurrences, and diagnose the item.
Error item Possible causes
Example of symptom
Action/symptom
Gyro sensor
disconnected Communications malfunction between NAVI control unit and
internal gyro

Navigation location detection performance has
deteriorated.
(Angular velocity cannot be detected.)
Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS
disconnected Communication error between NAVI control unit and internal
GPS substrate

Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS
transmission
cable
malfunction Malfunctioning transmission wires to NAVI control unit and inter-
nal GPS substrate

During self-diagnosis, GPS diagnosis is not per-
formed.
Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS input
line
connection
error Malfunctioning receiving wires to NAVI control unit and internal
GPS substrate

Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS TCX0
over
GPS TCX0
under Oscillating frequency of the GPS substrate frequency synchro-
nizing oscillation circuit exceeded (or below) the specification

Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference, or the control unit may have been subjected to exces-
sively high or low temperatures.

AV-138
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
NAVIGATION
1. The initial screen will be shown, and items “Display Longitude &
Latitude”,“Speed Calibration”,“Angle Adjustment” and “Initialize
Location” will become selective.
2. Select each switch on “NAVIGATION” screen to display the rele- vant diagnosis screen.
GPS ROM
malfunction
GPS RAM
malfunction Contents of ROM (or RAM) in GPS substrate are malfunctioning.

Location detection accuracy of the navigation
system will deteriorate, depending on the error
area in the memory, because GPS cannot make
correct positioning.
(Location correction using GPS is not per-
formed.)

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS RTC
malfunction Clock IC in GPS substrate is malfunctioning.

Correct time may not be displayed.

After the power is turned on, the system always
takes some time until GPS positioning becomes
possible. (The GPS receiver starts positioning
without re-collecting the whole satellite informa-
tion when it judged the data stored in the
receiver is correct.)

Correct time of error occurrence may not be
stored in the ″History of Errors ″.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS antenna
disconnected Malfunctioning connection between GPS substrate in
NAVI control unit and GPS antenna.

Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS
antenna is judged normal by self-diagnosis, the symptom may
be intermittent, caused by impact or vibration.
Low voltage
of GPS The power voltage supplied to the GPS circuit board has
decreased.

Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS
antenna is judged normal by self-diagnosis, the symptom may
be intermittent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
Error Malfunctioning NAVI control unit —
Dedicated map DVD-ROM is in the system, but the data cannot
be read.

The map of a particular location cannot be dis-
played.

Specific guidance information cannot be dis-
played.

Map display is slow.

Guidance information display is slow.

System has been affected by vibration.

Is map DVD-ROM damaged, warped, or dirty?
–If damaged or warped, the map DVD-ROM is malfunctioning.
–If dirty, wipe the DVD-ROM clean with a soft cloth.

Perform self-diagnosis.

When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration.
Error item
Possible causes
Example of symptom
Action/symptom
SKIA4576E

NAVIGATION SYSTEM AV-139
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2005 July 2005 FX
Display Longitude and Latitude
Able to confirm/adjust longitude and latitude.
Angle Adjustment
Adjusts turning angle output detected by the gyroscope.
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.
Initialize Location
This mode is for initializing the current location.
SKIA4575E
SKIA0364E
SKIA0365E

AV-140
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
CAN Diag Support MonitorAKS007J3
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. Select “CAN DIAG SUPPORT MONITOR”.
6. Display status of CAN communication.
NOTE:
Counter shows the status of CAN communication
PKIB4131E
SKIA4207E
Item Content Error counter
(Reference value)
CANCOMM OK/NG 0-50
CAN_CIRC_1 OK/UNKWN 0-50
CAN_CIRC_2 OK/UNKWN 0-50
CAN_CIRC_3 OK/UNKWN 0-50
CAN_CIRC_4 OK/UNKWN 0-50
CAN_CIRC_5 OK/UNKWN 0-50
CAN_CIRC_6 OK/UNKWN 0-50
CAN_CIRC_7 OK/UNKWN 0-50
CAN_CIRC_8 OK/UNKWN 0-50
CAN_CIRC_9 OK/UNKWN 0-50
SKIA4288E

NAVIGATION SYSTEM AV-141
C
D E
F
G H
I
J
L
M A
B
AV
Revision: 2005 July 2005 FX
A/C and AV Switch Self-Diagnosis FunctionAKS007J4
DESCRIPTION
It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the
steering switch (audio).
Starting the Self-Diagnosis Mode
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the witches “MUTE/ II ” and
“PREV” simultaneously for 3 seconds.
Then the self-diagnosis operates.
Exiting the Self-Diagnosis Mode
Turn ignition switch OFF. Then the self-diagnosis ends.
Diagnosis Function

It can illuminate all the indicators (LED) in the A/C and AV switch.

It can check for continuity of the switches by sounding the buzzer when the A/C and AV switch is pressed.

It can check for continuity of harness between A/C and AV switch and steering switch (audio).
SKIB0314E