1996 ACURA RL KA9 Service Repair Manual

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 .
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Voice guidanc e canno t b e hear d
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 , 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 .
1 . Pres s th e displa y uni t A/ C INF O button , an d selec t
"set-up" .
2 . Chec k th e volum e settin g fo r th e navigatio n system .
Is it set OFF?
YES—Se t th e volum e to a n audibl e level .
NO—G o t o ste p 3 .
3 . Chec k th e radi o operation .
Can you hear the radio?
YES—G o to ste p 4 .
NO—Troubleshoo t the audi o system .
4 . 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 radio .
Is "Radio" icon red?
YES—Troubleshoo t the audi o system .
NO—G o t o ste p 5 . Is
there continuity?
YES—Replac e th e affecte d shielde d harness .
NO—G o t o ste p 8 .
(cont'd)
5
. Tur n th e ignitio n switc h OFF .
6. Disconnec t the navigatio n unit connecto r B (14P).
7. Chec k fo r continuit y betwee n bod y groun d an d navi -
gatio n uni t connecto r B (14P ) terminal s No . 5 an d No .
12 individually .
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Navigation Syste m
Sympto m Troubleshootin g (cont'd )
8. Chec k fo r continuit y betwee n navigatio n uni t connec -
tor B (14P ) termina l No . 5 an d th e audi o uni t connec -
tor A (20P ) termina l No . 13 .
NAVIGATIO N UNIT CONNECTO R B (14P>
RG L (+ ) (WHT )
AUDIO UNI T CONNECTO R A (20P )
Wire sid e o f femal e terminal s
Is there continuity?
YES—G o to ste p 9 .
NO—Ther e is a n ope n i n th e circui t betwee n th e navi -
gatio n uni t an d audi o unit . Chec k fo r poo r connec -
tions o r loos e terminal s a t th e audi o an d navigatio n
units. I f a poo r connectio n o r loos e termina l i s found ,
replace th e affecte d shielde d harness .
9. Chec k fo r continuit y betwee n navigatio n uni t connec -
tor B (14P ) termina l No . 1 2 an d th e audi o uni t connec -
tor B (14P ) termina l No . 8 .
NAVIGATIO N UNI T CONNECTO R B (14P )
Wire sid e o f femal e terminal s
Is there continuity?
YES—G o to ste p 10 .
NO—Ther e is a n ope n i n th e circui t betwee n th e navi -
gatio n uni t an d th e audi o unit . Chec k fo r poo r con -
nection s o r loos e terminal s a t th e audi o an d naviga -
tion units . I f a poo r connectio n o r loos e termina l i s
found , replac e th e affecte d shielde d harness .
10. Substitut e a known-goo d audi o unit , an d recheck .
Is the system OK?
YES—Replac e th e audi o unit .
NO—Replac e th e navigatio n uni t
(see pag e 23-53 )
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