2001 INFINITI QX4 navigation

SEL693VD
POWER SUPPLY AND GROUND CIRCUIT CHECK FOR
DISPLAY & NAVI CONTROL UNIT
=NBEL0234S04Power Supply Circuit CheckNBEL0234S0401
Terminal Ignition switch
(+) (þ) OFF ACC ON
1 Ground Battery voltage Battery voltage Battery voltage
2 Ground Battery voltage Battery voltage Battery voltage
5 Ground 0V 0V Battery voltage
6 Ground 0V Battery voltage Battery voltage
If NG, check the following.
I7.5A fuse [No. 11, located in the fuse block (J/B)]
I10A fuse [No. 10, located in the fuse block (J/B)]
I15A fuse [No. 4, located in the fuse block (J/B)]
IHarness for open or short between fuse and display & NAVI
control unit
SEL694VD
Ground Circuit CheckNBEL0234S0402
Terminals Continuity
3 - Ground Yes
4 - Ground Yes
NAVIGATION SYSTEM
Trouble diagnoses (Cont'd)
EL-420

VOICE GUIDE OPERATION CHECK=NBEL0234S05
1 PRELIMINARY CHECK
1. Turn ignition switch to ACC position.
2. Insert the music CD into the radio and CD player.
3. Try to play the music CD.
Is the sound emitted from all speakers?
YesorNo
Ye s©GO TO 2.
No©Repair or replace audio system.
Refer to ªAUDIOº in EL-160.
2 CHECK NAVI OPERATION ON SIGNAL
1. Disconnect audio unit connector.
2. Push ªVOICEº button.
3. Check voltage between terminal 28 and ground.
SEL645XA
OK or NG
OK©GO TO 3.
NG©Repair or replace harness or NAVI control unit.
3 CHECK VOICE SIGNAL CIRCUIT
1. Push ªVOICEº button.
2. Check voltage between NAVI control unit terminal 30 or 31 and ground.
SEL648X
OK or NG
OK©GO TO 4.
NG©Repair or replace NAVI control unit.
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NAVIGATION SYSTEM
Trouble diagnoses (Cont'd)
EL-421

4 CHECK VOICE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and AUDIO unit connector.
3. Check continuity between NAVI control unit terminal 30 and AUDIO unit terminal 36.
4. Check continuity between NAVI control unit terminal 31 and AUDIO unit terminal 34.
SEL649X
YesorNo
Ye s©Repair or replace audio system.
Refer to ªAUDIOº in EL-160.
No©Repair or replace harness or connector.
NAVIGATION SYSTEM
Trouble diagnoses (Cont'd)
EL-422

This Condition is Not Abnormal=NBEL0235EXAMPLE OF BASIC OPERATIONAL ERRORSNBEL0235S01
Symptom Possible cause Repair order
No image is dis-
played.Monitor brightness control is set to full dark. Readjust monitor brightness.
Map does not appear
on display.Map CD is not inserted or inserted upside down. Insert the map CD with the label facing up.
Map mode is turned OFF. Press the ªMAPº button.
No guide tone is
heard.
Voice guide adjustment OFF/Volume is set to the
lowest or highest level.Adjust the voice guide level.
Voice guide volume
is too high or too low.
Dark display/Slow
image movementLow vehicle interior temperatureWait until vehicle interior temperature rises to appro-
priate level.
Small black or white
dots appear on the
screen.Unique liquid crystal display phenomena No problem
ªUnable to read CDº
message appears
only during specified
operation.Map CD surface is tainted/CD surface is partially
scratched.Check map CD surface. If dirty, wipe clean with a
soft cloth.
If map CD surface is damaged, replace the CD.
Area place names are not displayed.
If area place names do not appear on the map display, these names may not be available. Use the BIRD-
VIEW
Tflat surface map display function. Display output may differ. Note the items related to BIRDVIEWT
below.
IPriority is given to the display of place names in the direction of vehicle travel.
IExtended display of vehicle travel distance for both surfaces and steering angle (flat directional changes).
This phenomenon disappears after the display image has been replaced by another one.
IThe names of route and area might vary between the immediate front area and distance front area.
IAlphanumeric display characters are limited to maintain display simplicity and clarity. Display details may
differ with time and place.
IIdentical place and road names may appear on the display at more than one location.
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NAVIGATION SYSTEM
This Condition is Not Abnormal
EL-423

EXAMPLE OF CURRENT VEHICLE POSITION MARKER ERROR=NBEL0235S02The navigation system reads the vehicle distance and steering angle data. Because the vehicle is moving,
there will be an error in the current position indication. After the error appears, drive the vehicle for a short
distance. Stop the vehicle. If the position marker does not return to its original position, perform ªADJUST
CURRENT LOCATIONº (EL-411).
SEL698V
NAVIGATION SYSTEM
This Condition is Not Abnormal (Cont'd)
EL-424

Possible cause Drive condition Service procedure
AreaSlippery road surfaceOn wet, icy, or gravel road where
frequent wheel slippage occurs, dis-
tance calculations may be errone-
ous. The position marker may show
the vehicle to be in inaccurate posi-
tion.
If the position marker does not
move to the correct position
even after the vehicle has been
driven approximately 10 km (6
miles), perform ªADJUST CUR-
RENT LOCATIONº (EL-411). If
necessary, perform ªSPEED
CALIBRATIONº (EL-409). Slanted areaHilly areas where the road has
banked curves. When the vehicle
enters these banked curves, there
may be an error in steering angle
measurement. The position marker
may show the vehicle to be in inac-
curate position.
Map
dataMap display for a given road does not appear.
SEL699V
When the vehicle is driven on a
newly constructed road that does
not appear on the existing map.
Map marking and calibration are not
possible. The position marker may
indicate inaccurate position in close
proximity to the actual position.
Subsequently, when the vehicle is
driven on a road which is available
as map data, the position marker
may still indicate an inaccurate posi-
tion.
The vehicle is driven on a road whose course
has been altered (usually to improve the road or
to eliminate some hazard).
SEL700V
When the map data shown on the
display and the actual conditions are
different. Map matching will not be
possible. The position marker may
indicate inaccurate position in close
proximity to the actual position. If
the vehicle is driven on the indicated
road, further errors may occur.
Vehicle Use of tire chains (Stormy weather)Tire chains will affect distance sens-
ing. The position marker may indi-
cate inaccurate position.If the position marker does not
move to the correct position
even after the vehicle has been
driven approximately 10 km (6
miles), perform ªSPEED CALI-
BRATIONº (EL-409). After
removing the tire chains, sens-
ing accuracy may recover by
itself.
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NAVIGATION SYSTEM
This Condition is Not Abnormal (Cont'd)
EL-425

Possible cause Drive condition Service procedure
Opera-
tionDriving immediately after starting engine.The gyro (angular velocity sensor)
needs about 15 seconds after the
engine is started to precisely sense
the angular velocity. Directional
sensing errors will occur if the
vehicle is moved immediately after
starting the engine. The position
marker may indicate inaccurate
position.Wait a few moments between
starting the engine and actually
driving the vehicle.
Continuous driving for long distances (non-stop)When the vehicle is driven continu-
ously without stopping over a long
distance, errors in directional sens-
ing may occur. The position marker
may indicate inaccurate position.Stop the vehicle. Perform
ªSPEED CALIBRATIONº (EL-
409).
Rough or violent drivingWheel spinning (peeling out) or simi-
lar rough driving techniques can
adversely affect sensing accuracy.
The position marker may indicate
inaccurate position.If the position marker does not
move to the correct position
even after the vehicle has been
driven approximately 10 km (6
miles), perform ªADJUST CUR-
RENT LOCATIONº (EL-411).
Posi-
tional
calibra-
tion pro-
ceduresPositional calibration precision
SEL701V
If current vehicle location is roughly
set, the system may be unable to
locate the road that the vehicle is
traveling on. (This is especially true
in an area where there are many
roads.)Perform ªADJUST CURRENT
LOCATIONº (EL-411) within a
precision standard of 1 mm
(0.04 in) on the display.
Note: During calibration, use
the most detailed map pos-
sible.
Position calibration direction
SEL702V
When calibrating the position, check
the vehicle direction. If the vehicle
direction is not correct, subsequent
precision of current location will be
affected.Perform ªADJUST CURRENT
LOCATIONº, refer to EL-411.
NAVIGATION SYSTEM
This Condition is Not Abnormal (Cont'd)
EL-426

Possible cause:
Ð: Vehicle running ---: IndicationDrive condition Service procedure
Road
shapesY-intersection
SEL703V
In Y-intersections with a very
gradual change in course, a direc-
tional sensing may be inaccurate.
This may result in the position
marker giving the wrong road indica-
tion.
If the position marker does not
move to the correct position
even after the vehicle has been
driven approximately 10 km (6
miles), perform ªStore placeº. If
required, also perform
ªADJUST CURRENT LOCA-
TIONº (EL-411). Spiral road
SEL704V
On loop bridges and similar struc-
tures which result in a large and
continuous turn, turning angle may
be sensed inaccurately. As a result,
the position marker may separate
from the route on the map.
Straight road
SEL705V
In long distance driving on a straight
road or road with very gradual
curves, map marking inaccuracies
may occur. In such cases, the posi-
tion marker may stray from the route
being traveled during subsequent
turns due to inaccurate distance cal-
culation.
Winding road
SEL706V
Directional sensing precision errors
may occur when traveling on wind-
ing roads. During map matching, the
position marker may stray to an
adjacent road having a similar
shape. Subsequent position marker
error may occur.
Grid-like road shape
SEL707V
Directional sensing and distance
sensing, precision errors may occur
because of many roads having a
similar shape in the immediate area.
During map matching, the position
marker may stray to an adjacent
road having a similar shape. Subse-
quent position marker error may
occur.
Parallel roads
SEL708V
When driving on a parallel road,
map matching errors may occur.
Subsequent position marker error
may also occur.
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NAVIGATION SYSTEM
This Condition is Not Abnormal (Cont'd)
EL-427