Infiniti Q45 (FY33). Manual — part 396
DRIVING TEST
During the driving test, diagnose the system by checking the dif-
ference of symptoms with each sensor ON or OFF.
Test pattern 1
Test method in which current position adjustment is not made
according to GPS data.
I
Remove the GPS antenna connector from the display & NAVI
control unit. Drive the vehicle.
Before driving the vehicle, perform “Adjust Current Location”
(EL-566).
Test pattern 2
Test procedure in which map matching is not used.
I
Before driving the vehicle, perform “Adjust Current Location”
(EL-566). With the ignition switch OFF and the map CD-ROM
removed from the display & NAVI control unit, drive the vehicle.
After driving the vehicle, reinstall the map CD-ROM. Compare
the saved driving tracks for the vehicle’s current location with
roads on the map.
Example
<The position marker consistently indicates the wrong position
when driving in the same area. Determine if this is the result of the
map matching function or the GPS function.>
,
Perform test pattern 1.
<To verify the accuracy of the road configuration shown on the
display>
,
Perform test patterns 1 and 2.
I
Compare the map and the saved driving tracks. The precision
of the saved driving tracks is within several hundred meters.
<To make distance calibration and adjustments>
,
Perform test patterns 1 and 2.
I
Make adjustments by driving the vehicle over a known course
(highway or other road where distances are clearly marked).
Calibrate the distance against the known distance. Use the
formula below.
Calibration value =
Screen display distance
Actual distance
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
NAVIGATION SYSTEM
Trouble Diagnoses (Cont’d)
EL-575
SEL693VC
POWER SUPPLY AND GROUND CIRCUIT CHECK FOR
DISPLAY & NAVI CONTROL UNIT
Power supply circuit check
Terminal
Ignition switch
(+)
(−)
OFF
ACC
ON
q
1
Ground
Battery voltage
Battery voltage
Battery voltage
q
2
Ground
Battery voltage
Battery voltage
Battery voltage
q
5
Ground
0V
0V
Battery voltage
q
6
Ground
0V
Battery voltage
Battery voltage
If NG, check the following.
I
7.5A fuse [No.
32
, located in the fuse block (J/B)]
I
10A fuse [No.
8
, located in the fuse block (J/B)]
I
15A fuse [No.
58
, located in the fuse block (J/B)]
I
Harness for open or short between fuse and display & NAVI
control unit
SEL694VC
Ground circuit check
Terminals
Continuity
q
3
- Ground
Yes
q
4
- Ground
Yes
NAVIGATION SYSTEM
Trouble Diagnoses (Cont’d)
EL-576
SEL650X
SEL651X
SEL652X
VOICE GUIDE OPERATION CHECK
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 sound emitted from all speakers?
Yes
E
No
Repair or replace audio
system. Refer to “Audio” in
EL section of Service
Manual (SM0E-1F33U2).
CHECK NAVI OPERATION ON SIGNAL.
1. Disconnect audio unit connector.
2. Push VOICE button.
3. Check voltage between terminal 27 and
ground.
OK
E
NG
Repair or replace harness
or NAVI control unit.
CHECK VOICE SIGNAL.
1. Push VOICE button.
2. Check voltage between NAVI control
unit terminal 30 or 31 and ground.
OK
E
NG
Repair or replace NAVI
control unit.
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 termi-
nal 16.
4. Check continuity between NAVI control
unit terminal 31 and AUDIO unit termi-
nal 14.
Does continuity exist?
OK
E
NG
Repair or replace harness
or connector.
Repair or replace audio unit. Refer to
“AUDIO” in EL section of Service Manual
(SM0E-1F33U2).
Condition of VOICE button
Voltage (V)
Push.
Approx.
more than
0 - 10
Do not push.
0
Condition of VOICE button
Voltage (V)
Push.
Approx. 5
Do not push.
0
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
NAVIGATION SYSTEM
Trouble Diagnoses (Cont’d)
H
H
H
H
EL-577
This Condition Is Not Abnormal
EXAMPLE OF BASIC OPERATIONAL ERRORS
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 “MAP” 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 movement
Low vehicle interior temperature
Wait 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
“Unable to read CD”
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
T
flat surface map display function. Display output may differ. Note the items related to BIRDVIEW
T
below.
I
Priority is given to the display of place names in the direction of vehicle travel.
I
Extended 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.
I
The names of route and area might vary between the immediate front area and distance front area.
I
Alphanumeric display characters are limited to maintain display simplicity and clarity. Display details may
differ with time and place.
I
Identical place and road names may appear on the display at more than one location.
NAVIGATION SYSTEM
EL-578
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