ACURA RL KA9 1996 Service Repair Manual

Navigation Syste m
Sympto m Troubleshootin g (cont'd )
DVD scree n erro r message s
Diagnostic Test : Ca r Statu s
NOTE :
• Chec k th e Navigatio n Syste m Owner' s Manua l fo r a
lis t o f commo n DV D scree n erro r message s an d th e
probabl e cause .
• G o int o th e Diagnosti c mod e an d us e th e "Ca r
Status " diagnosti c (se e pag e 23-45 ) t o chec k th e sta -
tus o f th e DV D lid.
1. Chec k th e DVD-RO M readin g surfac e fo r scratches .
Are there scratches?
YES—Replac e th e DVD-RO M (se e pag e 23-52 ).
NO—I f
the proble m occur s occasionally whe n the
syste m is cold , thi s i s normal . I f th e proble m occur s
frequentl y whe n driving , replac e th e navigatio n uni t
(se e pag e 23-53 ).
Navigatio n canno t contro l A/ C
Diagnosti c Test : Navigatio n Syste m Lin k
NOTE :
• Alway s chec k th e connector s fo r poo r connection s o r
loos e terminals .
• Befor e troubleshooting , ge t th e navigatio n syste m
anti-thef t codes .
• Afte r troubleshooting , ente r th e navigatio n syste m
anti-thef t codes .
1. G o int o th e Diagnosti c Mod e an d perfor m th e "Nav i
System Link " chec k (se e pag e 23-40 ).
Is "Air-con " icon red?
YES—D o th e climat e contro l syste m
troubleshooting .
NO—Chec k fo r a n ope n o r shor t t o groun d betwee n
displa y uni t connecto r A (5P ) terminal s No . 2 , No . 3 ,
No . 4 an d climat e contro l uni t (12P ) connecto r termi -
nal s No . 12 , No . 15 , No . 4 . I f OK , chec k th e climat e
contro l syste m fo r norma l operation . I f th e climat e
contro l syste m work s properly , substitut e a known -
goo d displa y uni t an d recheck .
23-36
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Display day/nigh t mod e doe s no t wor k
Diagnosti c Test : Ca r Statu s
NOTE :
• Alway s chec k th e connector s fo r poo r connection s o r
loos e terminals .
• Befor e troubleshooting , ge t th e navigatio n syste m
anti-thef t codes .
• Afte r troubleshooting , ente r th e navigatio n syste m
anti-thef t codes .
1 . Chang e th e day/nigh t mod e t o "AUTO " unde r Set-up ,
an d recheck .
Doe s the display change to day and night modes?
YES—Th e syste m is O K a t thi s time .
NO—G o to ste p 2 .
2 . G o int o th e Diagnosti c Mod e an d us e diagnosti c th e
"Ca r Status " fo r a n IL L signa l (se e pag e 23-45 ) t o
check .
Is the "ILL" signal OK?
YES—Th e syste m is OK .
NO—Chec k th e IL L + circui t betwee n th e navigatio n
uni t an d tailligh t relay .
System lock s u p constantl y
Diagnostic Test : Uni t Chec k
1. Star t th e engin e an d tur n th e ignitio n switc h OFF ,
the n tur n th e ignitio n switc h O N (II) .
Doe s the system reboot?
YES—Th e syste m is O K a t thi s time .
NO—Chec k th e DV D fo r scratche s o r damag e an d th e
navigatio n uni t fo r wate r damage . I f OK , perfor m al l
o f th e "Uni t check " check s unde r Syste m Diagnosi s
Test (se e pag e 23-43 ).
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Navigation Syste m
Sympto m Troubleshootin g (cont'd )
Vehicle ico n spin s whe n parke d
Diagnosti c Test : Ya w Rat e
NOTE : Perfor m thi s diagnosti c whe n th e vehicl e i s cold .
1 . G o int o th e Diagnosti c Mod e an d us e th e "Ya w Rate "
diagnosti c (se e pag e 23-47 ).
Are the values correct?
YES—Th e syste m is OK .
NO—Replac e th e navigatio n uni t
(se e pag e 23-53 ).
Navigatio n drive s b y itsel f whe n parke d
Diagnosti c Test : Functiona l Setu p
NOTE :
• Alway s chec k th e connector s fo r poo r connection s o r
loos e terminals .
• Befor e troubleshooting , ge t th e navigatio n syste m
anti-thef t codes .
• Afte r troubleshooting , re-ente r th e anti-thef t code ,
an d re-initializ e th e navigatio n system .
1 . Star t th e engine .
2 . Fro m th e mai n menu , selec t places , the n selec t
an y destination , an d begi n th e trip .
3 . Wit h th e vehicl e parked , watc h th e vehicl e ico n o n
th e display .
Doe s the vehicle position icon move by itself?
YES—G o to ste p 4 .
NO—Th e syste m is O K a t thi s time .
4 . G o int o th e Diagnosti c mode , selec t "Functiona l
Setup" , the n selec t "Demonstration" .
Is "Demonstration Mode" set to "Yes"?
YES—Se t th e Demonstratio n mod e t o "NO" .
NO—Replac e th e navigatio n uni t
(see pag e 23-54 ).
23-3 8ProCarManuals.com

+
BODY
Navigatio n Stay s o n wit h ignitio n switc h of f
NOTE :
• Alway s chec k th e connector s fo r poo r connection s o r
loos e terminals .
• Befor e troubleshooting , ge t th e navigatio n syste m
anti-thef t codes .
• Afte r troubleshooting , re-ente r th e anti-thef t code ,
an d re-initializ e th e navigatio n system .
1. Wit h th e ke y ou t o f ignition .
Does the navigation screen stay on?
YES—G o to ste p 2 .
NO—Th e syste m is O K a t thi s time .
2 . Th e ca r ma y hav e bee n use d a s a demonstratio n
vehicl e a t a n even t lik e a n aut o show . I n thes e events ,
powe r i s ofte n jumpere d t o th e navigatio n syste m s o
tha t th e ignitio n ke y i s no t neede d i n th e vehicle . A t
th e en d o f th e show , th e jumpe r wir e ma y no t hav e
bee n removed . Chec k th e navigatio n uni t "C " con -
necto r (8P ) fo r a "non-factory " jumpe r wir e in serie s
wit h th e factor y cable .
Is there jumper wire?
YES—Remov e th e jumpe r wire , an d re-test .
NO—G o t o ste p 3 . 3
. Th e displa y o r audi o uni t ma y hav e bee n jumpere d
behin d th e das h t o allo w th e navigatio n syste m to
ru n withou t th e ignitio n key .
Doe s the radio function with the ignition switch off?
YES—G o to ste p 4 .
NO—G o t o ste p 5 .
4 . Remov e th e displa y uni t an d chec k t o se e if th e audi o
uni t connector s hav e a non-factor y jumpe r wir e i n
serie s wit h th e factor y connector .
Is there a jumper wire?
YES—Remov e th e jumpe r wire , an d re-test .
NO—G o to ste p 5 .
5. Chec k th e interio r light s wit h th e ignitio n switc h off .
Can you turn on the interior lights with the ignition
switch off?
YES—Troubleshoo t the AC C circuit .
NO—Replac e th e navigatio n uni t
(se e pag e 23-53 ).
23-3 9
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Navigation Syste m
System Diagnosi s Mod e
Start-u p procedur e an d Diagnosi s Men u
There ar e tw o way s t o ente r th e diagnosti c mode :
1 . Connec t th e SC S connecto r (se e ste p 2 o n pag e
23-52 ) t o th e navigatio n servic e connecto r focate d
i n th e trunk . Tur n th e ignitio n switc h t o th e O N (II )
position . Th e displa y wil l g o directl y t o th e diagnosti c
men u scree n show n below .
Note : whe n finishe d troubleshooting , mak e sur e t o
remov e th e SC S connector !
2 . Tur n th e ignitio n switc h t o th e O N (II ) position .
Us e th e navigatio n displa y har d button s a s describe d
below :
A . I f th e batter y ha s no t bee n disconnected , the n
pres s an d hol d th e 3 button s (Menu , Map/Guide ,
an d Cancel) , an d kee p the m presse d fo r
approximatel y 5 seconds . Th e displa y scree n wil l
g o directl y t o th e "Selec t Diagnosi s Items " men u
show n below .
B . I f th e batter y wa s disconnecte d an d reconnecte d
prio r t o thi s test , hol d dow n th e Men u an d Zoo m
Ou t button s a t th e "Code " o r "GP S Acquire "
screen . Th e displa y wil l g o t o th e "Nav i Syste m
Link " screen . Pus h th e joystic k t o g o to th e
"Functiona l Setu p menu, " the n touc h th e Retur n
icon t o ge t t o th e "Selec t Diagnosi s Items " menu .
Note : Thi s onl y allow s acces s t o th e diagnosti c
screens . Al l othe r navigatio n function s ar e
disabled .
DIAGNOSI S MEN U SCREE N
After th e displa y change s t o th e Selec t Diagnosi s Item s
menu , touc h th e ite m yo u wan t t o chec k an d th e chec k
wil l start . T o retur n t o th e previou s screen , touc h
"RETURN" .
• Nav i Syste m
(Link)
• Monito r Chec k
• Uni t Chec k •
Ca r Statu s
• GP S
Informatio n
• Ya w Rat e
• Tir e Calibrat e
• Functiona l
Setu p
• Versio n
Navi Syste m Lin k
• Thi s diagnosti c test s th e cable s connectin g th e navi -
gation components . Ensur e tha t th e ignitio n switc h is
in th e O N (II ) position . Whe n th e diagnosti c begins , a
"bong " soun d i s heard . Th e syste m is i n a
"Detecting " mode , an d i s waitin g fo r al l item s i n
whit e t o b e tested . Thi s include s th e voic e contro l
switch , an d microphone . Pres s th e TAL K butto n o n
th e voic e contro l switch , an d in a norma l voice , sa y
"testing" . Th e Tal k indicato r o n th e scree n shoul d
becom e green , an d th e voic e leve l indicato r shoul d
mov e to th e 6
th ba r t o pass . Next , pres s th e BAC K
button . Thi s shoul d caus e th e Cance l indicato r t o g o
green .
• I f al l o f th e communicatio n line s connectin g th e
syste m components , an d th e voic e contro l
switch/microphon e chec k ou t O K (al l bloc k dia -
gra m item s green) , the n th e O K indicato r wil l
becom e green .
• I f ther e i s a proble m wit h th e system , th e fault y
system componen t ite m wil l chang e to red , an d
the scree n wil l sho w "NG " i n red . Us e th e trou -
bleshootin g index , an d othe r diagnosti c screen s t o
hel p locat e th e problem .
• Th e indicatio n o n th e scree n wil l no t chang e unti l
th e ignitio n switc h i s cycled . Afte r repairin g th e
affecte d cabl e o r system , repea t thi s diagnostic .
NOTE : Green boxes an d gree n "OK " indicat e tha t
the communication s line s (cables ) ar e intact . Thi s
diagnosti c doe s no t necessaril y impl y tha t th e
individua l component s ar e functionin g properly .
Fo r instance , th e GP S antenn a wir e ma y b e
crushed , bu t stil l sho w a s "green" . A roa d test , o r
othe r diagnosti c ma y b e necessar y t o fin d th e
problem.
• Touc h th e Exi t Dia g ico n t o exit .
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Monitor Chec k
Overvie w o f displa y uni t
• Th e displa y uni t communicate s wit h th e navigatio n
uni t ove r it s ow n GA-Ne t bus . Informatio n i s sen t t o
th e navigatio n uni t wheneve r th e use r activate s th e
touc h screen , o r har d buttons . Informatio n sen t b y
th e navigatio n uni t t o th e displa y uni t include s com -
mand s t o contro l th e LC D bac k light .
• Th e navigatio n uni t als o send s navigatio n informa -
tion to th e scree n usin g th e Red , Green , Blue , an d
Composit e Vide o signals .
• Th e displa y uni t i s protecte d b y th e securit y syste m
b y daisy-chainin g th e securit y signa l throug h it , an d
the n passin g th e signa l t o th e audi o unit .
• Th e illuminatio n inpu t fro m th e gaug e brightnes s
contro l provide s bac k lightin g fo r th e har d button s
surroundin g th e screen .
• Th e displa y uni t als o communicate s wit h th e climat e
contro l modul e to se t th e A/ C mode , an d fa n speed .
Thes e screen s allo w troubleshootin g o f th e displa y unit .
Touc h th e men u ite m yo u wan t t o troubleshoot , an d fol -
low the diagnosti c instructions .
RGB Colo r
This scree n verifie s tha t th e displa y uni t i s receivin g th e
vide o (R , G , B an d Composit e sync ) signal s properly .
Th e thre e primar y color s shoul d al l b e show n withou t
distortion . Th e combinatio n o f al l thre e shoul d produc e
a centra l whit e section . I f an y o f th e color s ar e missing ,
troubleshoo t fo r th e colo r signa l (se e pag e 23-28 ). I f th e
pictur e ha s line s i n it o r scroll s horizontally , o r vertically ,
troubleshoo t fo r a Composit e syn c proble m (se e pag e
23-29 ).
Gra y Ton e
Thi s scree n diagnose s problem s wit h contrast . Yo u
shoul d b e abl e to se e th e change s fro m ba r t o ba r
acros s th e scale . I t i s norma l fo r th e 2 bar s o n eithe r sid e
t o appea r th e same .
White Raste r
The entir e displa y mus t b e show n i n white .
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Navigation System

System Diagnosis Mode (cont'd)

Black Raster

The entire display must be shown in black.

Test Pattern

The chart below; shows the colors being used for the

map and menu screens. This is for factory use only. To

check the color signal use the "RGB Color" diagnostic

found under the Monitor Check menu item.

Monitor Adjustment

This allows the navigation display to be centered. Use

the joystick to move the picture up/down or left/right. It

is unlikely that you will ever need to adjust the monitor

position. The "Default" button will reset the display

position to factory specifications.
Touch Panel

The panel touch sensing system consists of 9 horizontal

and 20 vertical infrared beams. Touching the screen

blocks both a horizontal and a vertical beam. Every pos-

sible touch position is shown on this diagnostic screen.

Touching one of these areas should cause its color to

reverse, and sound a "beep". If any areas of the screen

either don't respond, or respond at some other location

when touched, then replace the display unit. The

"Display" diagnostic listed in Unit Check provides an

additional method to determine if one of the infrared

sources or detectors is bad.

NOTE: Direct sunlight can affect this test by falsely trig-

gering the infrared detectors, so perform this diagnostic

inside or in a shaded area.ProCarManuals.com

Unit Check

Touch the item you want to check and the check starts.
Display

This diagnostic performs additional checks on the com-

munication bus between the control unit and the dis-

play. In addition, the internal electronics and touch

screen functionality are confirmed.

• When the connection is NG, first check for loose ter-

minals at the navigation unit and the display unit

connections. Next check for an open or short in the

communication line between the navigation unit and

the display unit. If the line is found to have an open

or short, replace the affected shielded harness.

• If the ROM or RAM is NG, replace the display unit.

• If the touch sensor is NG, then check for zeros in the

"X", or "Y" values below.

• The version represents the software version in the

display.

• The "1" following the X, indicate the 20 working ver-

tical infrared beams/receptors (from left to right).

The "Is" following the Y, indicate the 9 working hori-

zontal beams (from top to bottom). If any one of the

"1s" is a zero, this indicates that these is a problem

with one of the beams or receptors. Check all around

the inside rim of the navigation screen for dirt or any-

thing that may be blocking a beam. If nothing is

found, replace the display unit. See the display unit

diagram in the "System Description" showing the

infrared beam layout. Individual touch positions can

be verified by running the "Touch Panel" diagnostic

under the Monitor Check menu choice.

NOTE: When selecting this diagnostic from "Unit

Check," quickly remove your fingers from the touch-

screen to avoid a false detection of the infrared sen-

sors.ProCarManuals.com

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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Car Status

This screen is used to confirm that navigation unit is

properly receiving input signals. Signals equal to (0) are

OFF, and signals equal to (1) are ON.If the value on the

display does not match the actual vehicle status, then

check the wire carrying the signal.

• CHG and CHG(CAN) are not used for this model.

• VSP-Vehicle Speed Pulse from PCM

(Pin 6 of C-connector)

a) OFF (0) when vehicle is not moving

b) ON (1) when vehicle is moving

The VSP comes from the PCM as a dedicated signal.

Internally, the navigation unit compares the actual VP on

the map against street data to adjust the pulse to speed

scaling factor. As this scaling factor becomes more

accurate, the "Level" gradually increases from 0 to 10

(see the Tire Calibrate diagnostic screen).

• BACK-Reverse indication from reverse relay

(Pin 5 of C-connector)

a) OFF (0) when shift lever is in any position other

than reverse

b) ON (1) when shift lever is in reverse

The Back signal is used by the navigation unit to allow

the map screen to show the VP moving backwards when

in reverse. This signal is needed because the Speed

Pulse has no direction indication.
• ILL-lllumination Indication

(Pin 5 of navigation unit A-connector)

a) OFF (0) when parking lights, or headlights are off

b) ON (1) when parking lights, or headlights are on

This signal is used by the navigation unit to determine

whether to put the navigation screen into the Day or

Night brightness mode. (Setup screen 1)

• DVD Lid-senses if DVD door is open

a) (Close) when door is closed

b) (Open) when door is open

The navigation unit has a micro switch to detect this. If

open is indicated when the door is closed, replace the

navigation unit.

• PC Card Lid-Senses if PC Card door is open

a) (Close) when door is closed

b) (Open) when door is open

The navigation unit has a micro switch to detect this. If

open is indicated when the door is slid shut, then

replace the navigation unit. This slot is for insertion of

PC Flash memory cards for gathering diagnostic infor-

mation. This is for factory use only.ProCarManuals.com