Navigation Syste m
System Diagnosi s Mod e (cont'd )
Navi EC U
Thi s scree n diagnose s th e navigatio n unit . Whe n thi s
diagnosti c i s initiated , ther e is a dela y o f u p to a minut e
whil e it runs .
• "RO M (Application)" , an d "RO M (Loader) " ar e fo r
factor y use .
• I f "V-RAM " o r "D-RAM " i s NG , the n replac e th e navi -
gatio n unit .
• I f "GPS " indicate s "N G (ANT)" , the n chec k th e entir e
GP S Antenn a wir e fro m th e navigatio n uni t t o th e
antenna . I f th e wir e is crushe d o r damaged , tr y a
know n goo d antenna . I f thi s diagnosti c read s OK ,
the n orde r a ne w GP S antenna . I f th e diagnosti c stil l
read s N G (ANT) , the n replac e th e navigatio n unit .
• "DV D ROM " represent s th e databas e versio n o n th e
DVD . Thi s informatio n ca n als o b e foun d is Setu p
Scree n 4 by touchin g "information" .
• "Seria l No. " shoul d b e th e sam e a s th e seria l numbe r
foun d o n th e undersid e o f th e navigatio n unit . Thi s
numbe r i s neede d t o obtai n th e securit y cod e fro m
th e Interactiv e Networ k (IN ) system .
• Th e "Me m Clr " butto n is fo r factor y us e an d shoul d
no t b e use d unles s instructe d b y th e factory .
Touchin g thi s butto n wil l eras e th e customer' s set -
tings , persona l information , GP S orbita l data , an d
anythin g els e store d in memory .
PC Car d info .
Normall y ther e is n o P C Car d in th e P C slot , an d th e
scree n shoul d say , "P C Car d is no t inserted " a s below :
I f th e factor y instruct s yo u t o inser t a card , the n thi s
scree n display s th e Manufacturer , an d Produc t Nam e a s
show n in th e followin g screen .
NOTE: Do not try to end this diagnostic by pressing "OK"
or "Mem Clr" before it finishes, otherwise the system
will reboot.
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Navigation Syste m
System Diagnosi s Mod e (cont'd )
GPS Informatio n
This scree n show s th e curren t statu s o f GP S reception .
Th e circula r diagra m show s th e curren t locatio n o f th e
GP S satellite s (yello w numbers ) a s the y woul d appea r i n
th e sky . Th e oute r circl e represent s th e horizo n ( 0 degree s
elevation) . Th e middl e an d inne r circle s represent s 3 0
an d 6 0 degree s respectively . Th e ver y cente r o f th e dia -
gra m (9 0 degree s elevation ) i s directl y overhead .
Naturally, nearb y obstructions , lik e tal l building s wil l
bloc k satellite s i n tha t direction . Tha t i s wh y i t i s neces -
sar y t o b e i n a n ope n are a t o effectivel y troubleshoo t
GP S receptio n issues .
The satellit e number s show n o n th e diagra m corre -
spond t o th e "PRN " numbe r i n th e "GP S Details "
screen . Ther e ar e alway s 2 4 "active " GP S satellite s in
orbit . Becaus e satellite s fail , an d hav e t o b e remove d
fro m service , spare s ar e alway s parke d in orbit , read y t o
b e activated . Thi s is wh y th e PR N (satellit e ID number )
can be greate r tha n 24 .
NOTE : T o us e thi s scree n fo r troubleshooting , th e vehi -
cl e shoul d b e ou t sid e awa y fro m buildings , tal l trees ,
an d high-tensio n wire s fo r a t leas t 1 0 minute s wit h th e
engin e running . Also , mak e sur e th e rea r shel f i s fre e o f
loos e item s tha t ca n bloc k receptio n an d tha t th e trun k
li d is closed .
• Th e "Numbe r o f Satellites " bo x show s th e numbe r o f
acquire d satellite s (maximu m o f 12) . I t shoul d contai n
3 o r mor e icons . I f no t troubleshoo t fo r "GP S ico n i s
white " (se e pag e 23-32 ).
• Th e "Curren t Position " show s latitude , longitude , an d
elevatio n (i n meters) . I f ther e ar e les s tha n 3 satel -
lites , th e elevatio n ca n b e grossl y inaccurate .
• Th e Date/Tim e fiel d show s th e curren t date , an d als o
a tim e tha t include s dayligh t saving s an d othe r off -
set s entere d b y th e custome r i n Setu p scree n 2
"Adjus t Tim e Zone/Clock" .
GPS Detai l
By pressin g an d holdin g th e MEN U butto n fo r 1 0 sec -
onds , a GP S Detai l scree n is displayed . Thi s scree n dis -
play s rea l tim e incomin g satellit e positiona l data . Mos t
o f th e informatio n show n o n thi s scree n i s fo r factor y
use , howeve r som e o f th e dat a ca n indicat e partia l GP S
signa l interference .
• Th e bo x TS/A S an d HDop/VDo p is fo r factor y use .
• Th e Spee d an d Directio n informatio n i s update d i n
rea l tim e whe n driving , an d ca n b e use d t o detec t
intermitten t spee d senso r problems .
• Th e Date/Tim e Informatio n i s th e sam e a s i n Setu p
scree n 2 "Adjus t Tim e Zone/Clock" .
• I f th e "3D " ico n i s show n abov e th e yello w dots , thi s
implie s tha t a t leas t 4 satellite s ar e availabl e fo r ma p
positioning , an d th e "GPS " indicator on th e ma p
scree n wil l b e green . Se e th e "Globa l Positionin g
System " detaile d explanatio n i n th e "Syste m
Description" .
• I f th e ro w o f dat a i n th e tabl e belo w begin s wit h a
"yello w dot" , th e AZ I an d E L field s ca n b e use d t o
locat e eac h satellit e o n th e circula r GP S diagra m (se e
prio r screen) .
NOTE : Th e dat a belo w is a n exampl e only .
Th e tabl e o f value s show n o n th e scree n belo w ha s th e
followin g columns :
If "3D " i s missing , fol -
lo w troubleshootin g
(see pag e 23-32 ).
If al l 0 , then , follo w
troubleshootin g (se e
page 23-32 ).
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Yaw Rate
This diagnostic checks the yaw rate sensor in the control
unit. This device detects when the vehicle turns, and
repositions the vehicle posion icon on the map screen.
For more detailed information, see the yaw rate sensor
theory of operation under "System Description"
• "Sensor" indicates the voltage output from the yaw
rate sensor. It should indicate about 2.500 volts when
stopped.
• "Offset" is the reference voltage or standard within
the yaw rate sensor. It also should indicate about
2.500 volts when stopped.
• A "sensor" output voltage HIGHER than the "Offset"
voltage indicates that the vehicle is turning to the
right.
A "sensor" output voltage LOWER than the "Offset"
voltage indicates that the vehicle is turning to the left.
• The yaw rate offset, and sensor should both indicate
about 2.500 volts when stopped. If either reads zero,
or 5.000 volts, replace the navigation unit.
• The yaw rate offset and sensor should be within
0.01 V of each other when stopped. The sensor value
should change relative to the offset as the car is
turned while driving. If not, replace the navigation
unit.
• Auto tuning should always be on. If it is off, turn it
on.
• "Sensitivity study" represents the status of the inter-
nal tuning function. At initialization, this status of the
internal tuning function. At initialization, this value
starts at 6 and increases to # 10 as the internal correc-
tion values become more accurate.
• The settings "CCW Cal Factor", "CW Cal Factor", and
"Set" are for factory use only. THIS SHOULD NEVER
BE USED.ProCarManuals.com
Navigation System
System Diagnosis Mode (cont'd)
Tire Calibrate
As the vehicle moves, the navigation system receives
speed pulses from the PCM. These pulses are converted
using a conversion factor to a mph speed that moves
the vehicle position (VP) on the map. The navigation
system has an internal tuning function that generates
and refines this factor based on actual driving. The
"Level" indicates the status of the tuning. At initializa-
tion, it begins at 0, and increases to 10 as the navigation
system is used.
• The "Auto Tuning" is factory set to "ON", and should
remain on.
• The "LEVEL" indicates the tuning status. If it is less
than 10, the unit is still calibrating.
• The "Tire-Cal. Tuning" and the "Set" button should
not be used. It is for factory use only.
Functional Setup
Touch the item you want to check.ProCarManuals.com
Log Data
This screen allows factory to collect log data to trou-
bleshoot navigation system issues.
• Normally there is no card in the "PC Card slot", and
the PC slot door should always be closed. The screen
should look like below.
• However, if the factory instructs you to insert a PC
Card, insert it into the card slot (label side up), and
then slide the PC Card door shut. If instructed by the
factory, touch the "Gyro. Sensor Logs ON" button on
the screen. Follow the factory procedure for gather-
ing test data, and properly ending the test.ProCarManuals.com
Navigation System
System Diagnosis Mode (cont'd)
GPS Offset Time
This screen is for factory use only. It allows adjustment
of the GPS time. This display updates in real time.
• "GPS Time" is the time as received from the GPS
satellites. It is in Greenwich Mean Time (GMT).
• "System Time" is the internal time used by the navi-
gation unit to calculate your position on the map.
It is also in Greenwich Mean Time (GMT).
• "Display Time" is the time shown on Setup screen 2
"Adjust Time Zone/Clock", and reflects any changes
due to daylight savings time or time adjustments
entered by the customer.
• Date, Hour, Minute, and "Set" buttons should not be
used.
Mic Level
This diagnostic allows you to independently test the
microphone and the TALK and BACK buttons on the
steering wheel (voice control switch). The microphone
and voice control switch are used to activate the voice
control system. The microphone is located near the map
light in the ceiling. It is directional, and works best if the
voice is coming from the drivers seat.
• Press the TALK button on the steering wheel, and in a
normal voice say "testing". The TALK indicator on
the screen should momentarily become green, and
the text "Now Recording..." should appear in yellow.
In addition, the Mic Level indicator should move at
least to the 6th bar. If the Talk indicator on the screen
does not briefly become green, then check the wiring
from the steering wheel talk button to the navigation
unit. If there is no "Mic Level" movement when you
speak, then you should check the wire running from
the microphone to the control unit.
• Press the BACK button on the steering wheel. This
should cause the Cancel indicator on the screen to
momentarily become green. If it does not briefly
change to green, then check the wiring from the
steering wheel BACK button to the navigation unit.ProCarManuals.com
VSP Count
This screen displays the number of pulses per revolu-
tion of the tire. This is for factory use only, and should
not be changed.
• "Pulse Count Setting" should always be set to
"Auto"
• "VSP Count" should always be "4", and should never
be adjusted or set to any other value.
Demonstration
This screen is for factory use only, and should always be
set to "OFF". Occasionally this setting is turned "ON"
when vehicles are being used at Auto Shows or similar
events. Turning this feature on, allows the navigation
system to automatically follow a route to a destination
when the vehicle is stationary.
Version
This screen displays the current version of the program,
and allows the loading of a new version of the program
either from a CD/DVD or from a PC card.
The D-Ram Program version should always be greater
than or equal to the Disc Program version. The mapped
database version is the date of the database on the DVD.
The Model code is 23H, and is for factory use only.
Do not use either of the load buttons, unless instructed
to do so by the factory.ProCarManuals.com
Navigation Syste m
Forced Startin g o f Displa y
1. Pul l bac k th e fron t corne r o f th e righ t trun k sid e trim. .
2 . Connec t th e SC S servic e connecto r (A ) t o th e naviga -
tio n servic e chec k connecto r (B) .
3 . Chec k tha t th e diagnosi s men u fo r th e pictur e diagno -
si s start s u p an d the n change s t o th e syste m lin k
menu .
4 . I f th e displa y doe s no t tur n on , tur n th e ignitio n
switc h OFF , pres s an d hol d th e A/C-INF O butto n (A) ,
pus h an d hol d th e joystic k (B ) up , the n tur n th e igni -
tio n switc h to AC C (I) .
NOTE : I f th e displa y fail s t o light , o r th e syste m lin k
scree n is no t displayed , refe r t o N o pictur e is show n
on th e display .
DVD-RO M Replacemen t
NOTE: Whe n th e DVD-RO M is re-inserte d o r replaced , a
ma p matc h mus t b e don e (se e pag e 23-5 ).
1 . Tur n th e ignitio n switc h O N (II) .
2 . Ope n th e fron t cove r (A ) o f th e navigatio n unit .
3 . Pres s th e EJEC T butto n (B) .
4 . Remov e th e DVD-ROM .
5 . Inser t th e ne w DVD-ROM .
6 . Clos e th e fron t cover . D o no t tur n th e ignitio n switc h
OFF , unti l dat a is dow n loade d t o navigatio n unit .
NOTE : Afte r servicing , th e fron t cove r mus t b e
closed . I f yo u star t u p th e navigatio n syste m wit h th e
fron t cove r open , th e displa y wil l indicate .
"Navigatio n uni t doo r i s ope n o r N o DV D Dis k
installed . Pleas e chec k system" .
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