1996 ACURA RL KA9 display

- +

BODY

4. Turn the ignition switch OFF.

5. Disconnect the display unit connector B (20P).

6. Check for continuity between display unit connector

B (20P) terminal No. 10 and body ground.

DISPLAY UNIT CONNECTOR B (20P)

Wire side of female terminals

Is there continuity?

YES—Go to step 7.

NO—Repair the open in the wire between the display

unit and body ground (G251).

7. Disconnect the navigation unit connector A (20P).

8. Check for continuity between body ground and dis-

play unit connector B (20P) terminal No. 5 and No. 15

individually.

DISPLAY UNIT CONNECTOR B (20P)

DISP BUS {+)

(BLK)

Wire side of female terminals

Is there continuity?

YES—There is a short to body ground in the circuit

between the display unit and the navigation unit.

Replace the affected shielded harness.

NO—Go to step 9.
9. Check for continuity between display unit connector

B (20P) terminal No. 5 and navigation unit connector

A (20P) terminal No. 10.

DISPLAY UNIT CONNECTOR B (20P)

DISP BUS {+} (BLK)

Wire side of female terminals

Is there continuity?

YES—Go to step 10.

NO—There is an open in the circuit between the dis-

play unit and the navigation unit. Check for poor con-

nections or loose terminals at the display and naviga-

tion units. If a poor connection or loose terminal is

found, replace the affected shielded harness.

(cont'd)ProCarManuals.com

Navigation Syste m
Sympto m Troubleshootin g (cont'd )
GPS ico n is whit e
Diagnosti c Test : Navigatio n Syste m Lin k
NOTE :
• Mak e sur e th e vehicl e i s parke d outsid e an d awa y
from buildings .
• Refe r t o GP S informatio n (se e pag e 23-46 ) fo r real -
tim e satellit e receptio n display .
Befor e assumin g tha t a GP S antenn a receptio n com -
plain t i s hardwar e related , b e awar e o f th e following :
• Th e GP S signa l i s extremel y wea k (abou t on e bil -
liont h th e strengt h o f a radi o broadcas t signa l
receive d b y a radi o antenna )
• I f th e rea r windo w ha s bee n tinte d wit h metalli c
tint, thi s ca n seriousl y degrad e o r bloc k GP S
reception .
• Loos e item s o n th e rea r shel f ca n bloc k satellit e
antenn a reception .
• Aftermarke t device s lik e Lo-Jack , remot e starter s
o r othe r electroni c device s locate d nea r th e navi -
gation uni t o r GP S antenn a ca n potentiall y inter -
fere wit h th e operatio n o f th e navigatio n an d On -
Star systems .
1 . Chec k fo r electroni c aftermarke t accessorie s (possibl y
hidden ) mounte d nea r th e GP S antenn a o r th e navi -
gation unit .
Are there any electronic accessories?
YES—Disabl e th e accessorie s an d recheck ,
NO—G o t o ste p 2 .
2. G o int o th e Diagnosti c mod e an d us e th e "Nav i
Syste m Link " diagnosti c (se e pag e 23-40 ) t o chec k
th e GP S antenna .
Is "GPS Ant" icon red?
YES—Us e th e "Nav i ECU " diagnosti c unde r Uni t
Chec k (se e pag e 23-43 ) t o chec k fo r a kinked , crushed ,
o r disconnecte d GP S antenn a wire . I f ico n i s stil l red ,
replac e th e GP S antenna .
NO—Chec k tha t nothin g is blockin g th e GP S antenn a
locate d unde r th e rea r shel f an d recheck . Substitut e
a known-goo d navigatio n unit , an d recheck .
ProCarManuals.com

Voice contro l doe s no t wor k
Diagnosti c Test : Navigatio n Syste m Lin k an d
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 , writ e dow n th e customer' s
radi o statio n presets , an d ge t th e radi o an d naviga -
tio n syste m anti-thef t codes .
• Afte r troubleshooting , ente r th e radi o an d navigatio n
syste m anti-thef t codes , an d th e radi o statio n presets .
Befor e assumin g tha t a voic e contro l complain t i s
hardwar e related , ensur e tha t th e voic e contro l syste m
i s bein g operate d correctly .
• Mak e sur e yo u ar e o n th e correc t scree n whe n tryin g
t o issu e a voic e command . Fo r instance , th e com -
man d "Fin d th e neares t Italia n Restaurant " onl y
work s o n a Ma p screen . (Se e th e Navigatio n Owner' s
manua l fo r a complet e lis t o f allowe d voic e com -
mand s fo r th e informatio n bein g displayed) .
• Clos e th e window s an d sunroof .
• Se t th e fa n spee d t o lo w (1 o r 2) .
• Adjus t th e ai r flo w fro m th e dashboar d vent s s o tha t
they d o no t blo w agains t th e microphon e o n th e
celling .
• Paus e afte r pressin g th e TAL K button , the n giv e a
voic e comman d in a clear , natura l speakin g voice .
I f th e syste m canno t recogniz e you r command , spea k
louder .
• I f th e microphon e pick s u p voice s othe r tha n yours ,
th e syste m ma y no t interpre t you r voic e command s
correctly .
• I f yo u spea k a comman d wit h somethin g in you r
mouth , o r you r voic e is eithe r to o hig h o r to o husky ,
th e syste m ma y misinterpre t you r command .
1 . G o int o th e Diagnosti c mod e an d us e th e "Mi c Level "
diagnosti c th e unde r Functiona l Setu p (se e pag e 23 -48
t o chec k th e operatio n o f th e TAL K an d BAC K but -
tons.
Are the TALK and BACK buttons operational?
YES—G o to ste p 2 .
NO—Chec k fo r a n ope n o r shor t t o groun d o n naviga -
tio n uni t connecto r B (14P ) termina l No . 10 . 2
. Us e th e "Mi c Level " diagnosti c unde r Functiona l
Setu p (se e pag e 23-48 ) t o chec k th e operatio n o f th e
microphone .
Is the microphone operational?
YES—Chec k th e operatio n o f th e voic e contro l sys -
te m (Se e th e Navigatio n Syste m Owner' s Manual) .
NO—Chec k fo r a loos e o r missin g microphon e assembly .
I f OK , chec k fo r a n ope n o r shor t t o groun d o n navigatio n
uni t connecto r B (14P ) terminal s No . 6 an d No . 14 .
Curso r constantl y leave s roa d
Diagnosti c Test : Ya w Rat e an d Ca r Statu s
1 . Chec k th e GP S ico n o n th e navigatio n picture .
Is the GPS icon white?
YES—D o th e troubleshootin g fo r GP S ico n i s whit e
(see page 23-32)
NO—G o t o ste p 2 .
2 . 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 ) t o chec k th e ya w rat e
sensor .
3. 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 vehi -
cl e spee d pulse .
Are the yaw rate sensor and vehicle speed pulse OK?
YES—Th e proble m ma y b e normal . Chec k t o se e if
th e proble m occur s i n th e sam e place . I f i t does , th e
proble m coul d b e in th e database . G o to ste p 4 .
NO—I f th e proble m is th e ya w rat e sensor , replac e
the navigatio n uni t (se e pag e 23-53 ). I f th e proble m is
th e vehicl e spee d pulse , troubleshoo t th e vehicl e
spee d signa l circuit .
4 . Substitut e a known-goo d navigatio n uni t an d chec k
t o se e if th e proble m occur s i n th e sam e place .
Doe s the problem occur in the same place?
YES—Th e proble m is in th e database . Repor t th e
proble m accordin g t o th e Navigatio n Syste m
Owner' s Manua l unde r "Reportin g Errors" .
NO—Replac e th e navigatio n uni t
(se e pag e 53 ).
ProCarManuals.com

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 ).
ProCarManuals.com

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

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.
ProCarManuals.com