INFINITI QX4 2001 Factory Service Manual

MEL270M
NAVIGATION SYSTEM
Wiring Diagram Ð NAVI Ð (Cont'd)
EL-396

Self-diagnosis ModeNBEL0231APPLICATION ITEMSNBEL0231S01
Mode DescriptionReference
page
Self DiagnosisSelf-diagnosis for display & NAVI control unit, CD-ROM
and GPS antenna connection.EL-398
Confirmation/
adjustmentDisplay Diagnosis Color and gray gradation of display can be checked in
this mode.EL-406
Diagnostic Signals from the Car Several input signals to display & NAVI control unit, can
be monitored in this mode.EL-404
NavigationCheck the map CD-
ROM versionThe version (parts number) of inserted CD-ROM can be
checked in this mode.EL-405
Error history 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.EL-400
Longitude & Latitude Display the map. Use the joystick to adjust position. Lon-
gitude and latitude will be displayed.EL-407
Adjust the angle Turning angle of the vehicle on the display can be
adjusted in this mode.EL-408
Speed CalibrationUnder ordinary conditions, the navigation system dis-
tance measuring function will automatically compensate
for minute decreases in wheel and tire diameter caused
by tire wear or low pressure. Speed calibration immedi-
ately restores system accuracy in cases such as when
distance calibration is needed because of the use of tire
chains in inclement weather.EL-409
Initialize Location This mode is for initializing the current location. Use
when the vehicle is transported a long distance on a
trailer, etc.EL-433
SEL583X
HOW TO PERFORM SELF-DIAGNOSIS MODENBEL0231S021. Start the engine.
2. Push both of ªMAPº and ªD/Nº switches at the same time for
more than 5 seconds.
SEL584X
3. Touch ªSelf Diagnosisº or ªConfirmation/ adjustmentº.
IFor further procedure, refer to the following pages which
describe each application item of the self-diagnosis mode.
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NAVIGATION SYSTEM
Self-diagnosis Mode
EL-397

SEL584X
ªSelf DiagnosisºNBEL0231S02011. Start the engine.
2. Push both ªMAPº and ªD/Nº switches at the same time for more
than 5 seconds.
3. Touch ªSelf Diagnosisº.
SEL585X
4. Self-diagnosis will be performed.
SEL586X
5. Diagnosis results will be displayed. Diagnosis results are indi-
cated by display color. For details refer to ªSELF-DIAGNOSIS
RESULTSº.
SEL587X
To obtain detailed diagnosis results on the screen, touch ªNaviga-
tionº or ªGPS Antennaº.
NAVIGATION SYSTEM
Self-diagnosis Mode (Cont'd)
EL-398

SELF-DIAGNOSIS RESULTS=NBEL0231S03
Diagnosed
itemDisplayed
colorDetailed result DescriptionDiagnoses/service procedure
Recheck system at each check or
replacement (When malfunction is
eliminated, further repair work is
not required.)
ªGPS
Antennaº
(GPS
antenna con-
nection)Green ÐGPS antenna is connected to dis-
play & NAVI control unit correctly.Ð
YellowConnection to the follow-
ing unit is abnormal. See
the Service Manual for
further diagnosis.GPS antenna connection error is
detected.1. Check GPS antenna feeder cable
connection at display & NAVI
control unit.
2. Visually check GPS antenna
feeder cable. If NG, replace GPS
antenna assembly.
3. Replace GPS antenna.
ªNavigationº
(Display &
NAVI control
unit)Green Ð No failure is detected. Ð
Red [*** is abnormal.]Display & NAVI control unit is mal-
functioning.Replace display & NAVI control unit.
GraySelf-diagnosis for CD-
ROM DRIVER of DISP &
NAVI was not conducted
due to no insertion of
CD-ROM.Any CD-ROM is not inserted or dis-
play & NAVI control unit is malfunc-
tioning.1. Confirm that map CD-ROM is not
inserted into display & NAVI con-
trol unit.
2. Replace display & NAVI control
unit.
YellowCD-ROM or CD-ROM
DRIVER of DISP & NAVI
is abnormal. See the
Service Manual for fur-
ther diagnosis.Display & NAVI control unit judges
that inserted CD-ROM is malfunc-
tioning.
Map CD-ROM or CD-ROM driver of
the unit is malfunctioning.1. Confirm the disk is installed cor-
rectly (not up side down.)
2. Perform ªCD-ROM VERSION
CHECKº in EL-405 to confirm
whether correct CD-ROM is
inserted or not.
3. Check the disk surface. Are there
any scratches, abrasions or pits
on the surface?
4. Replace the CD-ROM.
5. Replace display & NAVI control
unit. CD-ROM is abnormal.
Please check the disc.Inserted map CD-ROM can not be
read.
Map CD-ROM or CD-ROM driver of
the unit is malfunctioning.
Connection to the follow-
ing unit is abnormal. See
the Service Manual for
further diagnosis.GPS antenna connection error is
detected.1. Check GPS antenna feeder cable
connection at display & NAVI
control unit.
2. Visually check GPS antenna
feeder cable. If NG, replace GPS
antenna assembly.
3. Replace GPS antenna.
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NAVIGATION SYSTEM
Self-diagnosis Mode (Cont'd)
EL-399

Confirmation/Adjustment Mode=NBEL0232ªERROR HISTORYº MODENBEL0232S01DescriptionNBEL0232S0101In this mode, historical errors of the system are displayed with the
following data.
IHow many times the error was detected
IThe last time data when the error was detected
IThe last place where the error was detected
NOTE:
IThe number of errors can be counted up to 50 times. More
than 51 times will be indicated as 50 times.
IMalfunction of the GPS board (inside the display & NAVI
control unit) will result in the display of incorrect time
data.
IWhen an error occurs, an incorrect position marker
appears on the display. The accuracy of the display data
(position marker) will be affected.
SEL584X
How to PerformNBEL0232S01021. Start the engine.
2. Push both ªMAPº and ªD/Nº switch at the same time for more
than 5 seconds.
3. Touch ªConfirmation/ adjustmentº.
SEL588X
4. Touch ªNavigationº.
SEL589X
5. Touch ªError historyº.
NAVIGATION SYSTEM
Confirmation/Adjustment Mode
EL-400

SEL590X
6. If trouble items are displayed with time count, repair/replace
the system according to ªError historyº TABLE, EL-402.
7. If necessary, touch error item to display the time when the error
was detected and the place where the error was detected.
8. After repairing the system, erase the diagnosis memory.
NOTE:
When the display & NAVI control unit must be replaced, do not
erase the diagnosis memory for further inspection of malfunc-
tions.
a. Start the engine.
b. Push both ªMapº and ªD/Nº switches at the same time for more
than 5 seconds.
c. Touch ªConfirmation/ adjustmentº.
d. Touch ªNavigationº.
e. Touch ªError historyº.
f. Touch ªDeleteº.
g. Touch ªYesº.
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NAVIGATION SYSTEM
Confirmation/Adjustment Mode (Cont'd)
EL-401

ªERROR HISTORYº TABLE=NBEL0232S02
Detected items Description Diagnosis/service procedureRefer-
ence
page
Gyro sensor disconnectedCommunications malfunction between
display & NAVI control unit and internal
gyroPerform self-diagnosis to confirm
whether the display & NAVI control unit
is malfunctioning or not. If no failure is
detected, a momentary and/or tempo-
rary malfunction may have been caused
by strong electromagnetic wave interfer-
ence.EL-397
Connection problem of speed
sensorInput malfunction of display & NAVI con-
trol unit and speed sensorCheck vehicle speed sensor signal in
ªDiagnosis for signals from the carº
mode. If the input signal is not detected
correctly, check harness for open or
short between combination meter and
display & NAVI control unit.EL-404
GPS disconnected
Communications malfunction between
display & NAVI control unit and GPS
boardPerform self-diagnosis to confirm
whether the display & NAVI control unit
is malfunctioning or not. If no failure is
detected, a momentary and/or tempo-
rary malfunction may have been caused
by strong electromagnetic wave interfer-
ence.EL-397 GPS transmission cable malfunc-
tion
GPS input line connection error
GPS TCXO overThe transmission circuit of the GPS
board frequency synchronization oscilla-
tor (inside the display & NAVI control
unit) is sending an oscillation frequency
that is greater or less than the set value.A location error occurs. Strong electro-
magnetic wave interference may have
occurred. The GPS antenna may be in a
very hot or very cold environment. This
is usually a temporary malfunction.Ð
GPS TCXO under
GPS ROM malfunction
Internal malfunction of GPS board RAM
or ROM inside the display & NAVI con-
trol unit.Perform self-diagnosis to confirm
whether the display & NAVI control unit
is malfunctioning or not. If no failure is
detected, a momentary and/or tempo-
rary malfunction may have been caused
by strong electromagnetic wave interfer-
ence.EL-397 GPS RAM malfunction
GPS RTC malfunctionMalfunction of GPS board clock IC
inside the display & NAVI control unit.
GPS antenna disconnected ÐPerform self-diagnosis to confirm GPS
antenna connection. If no failure is
detected, a momentary and/or tempo-
rary malfunction may have been caused
by a strong impact.EL-405
Low voltage of GPSPower supply voltage for GPS board
inside the display & NAVI control unit is
low.1. Check power supply circuits for dis-
play & NAVI control unit.EL-417
2. Perform self-diagnosis to confirm
GPS antenna connection.EL-397
3. If above diagnosis results are OK, a
momentary and/or temporary malfunc-
tion may have been caused by a strong
impact.Ð
CD-ROM communication errorCD-ROM driver malfunction (inside the
display & NAVI control unit)Perform self-diagnosis to confirm
whether the display & NAVI control unit
is malfunctioning or not. If no failure is
detected, a momentary and/or tempo-
rary malfunction may have been caused
by strong electromagnetic wave interfer-
ence.EL-397
NAVIGATION SYSTEM
Confirmation/Adjustment Mode (Cont'd)
EL-402

Detected items Description Diagnosis/service procedureRefer-
ence
page
Loading mechanism malfunction ÐCheck that whether the disc can be
inserted and ejected correctly. If the
loading function does not operate
correctly, replace NAVI & display control
unit.Ð
CD-ROM reading errorIt is confirmed that the appropriate CD-
ROM disc is positioned in the CD-ROM
loader. However, no data can be read.Perform self-diagnosis to confirm
whether the inserted disc is malfunction-
ing or not.EL-397
Malfunctioning of error correction
for CD-ROMErroneous data is read from the CD-
ROM. The errors cannot be corrected.
CD-ROM focus errorCD-ROM data reading beam is out of
focus.Rough road driving might create CD
skipping like music CD audio unit.Ð
CD-ROM malfunction ÐPerform self-diagnosis to confirm
whether the inserted disc is malfunction-
ing or not.EL-397GI
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NAVIGATION SYSTEM
Confirmation/Adjustment Mode (Cont'd)
EL-403

ªDIAGNOSTIC SIGNALS FROM THE CARº MODE=NBEL0232S03DescriptionNBEL0232S0301In ªDiagnostic Signals From the Carº mode, following input signals
to the display & NAVI control unit can be checked on the display.
Item Indication Vehicle condition
Vehicle
Speed*ON Vehicle speed is greater than 0 km/h (0 MPH).
OFF Vehicle speed is 0 km/h (0 MPH).
LightON Lighting switch is in 1st or 2nd position.
OFF Lighting switch is in ªOFFº position.
IGNON Ignition switch is in ªONº position.
OFF Ignition switch is in ªACCº position.
REVERSE*ON Selector/shift lever is in ªReverseº position.
OFFSelector/shift lever is in other than ªReverseº posi-
tion.
*: When ignition switch is in ªACCº position, indication will be changed to ª-º.
SEL584X
How to PerformNBEL0232S03021. Start the engine.
2. Push both ªMAPº and ªD/Nº switches at the same time for more
than 5 seconds.
3. Touch ªConfirmation/ adjustmentº.
SEL588X
4. Touch ªDiagnostic Signals from the Carº.
SEL591X
5. Then ªDiagnostic Signals from the Carº mode is performed.
NAVIGATION SYSTEM
Confirmation/Adjustment Mode (Cont'd)
EL-404

SEL584X
ªCHECK THE MAP CD-ROM VERSIONº MODE=NBEL0232S04How to PerformNBEL0232S04011. Start the engine.
2. Push both ªMAPº and ªD/Nº switches at the same time for more
than 5 seconds.
3. Touch ªConfirmation/ adjustmentº.
SEL588X
4. Touch ªNavigationº.
SEL589X
5. Touch ªCheck the map CD-ROM versionº.
SEL592X
6. The version (parts number) of CD-ROM loaded to the display
and NAVI control unit will be displayed.
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NAVIGATION SYSTEM
Confirmation/Adjustment Mode (Cont'd)
EL-405