Clock
Remova l
1. Remov e th e climat e contro l uni t (se e sectio n 22 ).
2 . Remov e th e tw o screws , the n remov e th e clock .
CLIMAT E CONTRO L UNI T
Terminal s
Cavity Wir e Connect s t o
CLOC KSCREW S
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Description
The vehicl e is equippe d wit h a n immobilize r syste m tha t wil l disabl e th e vehicl e unles s th e prope r ignitio n ke y i s used .
Thi s syste m consist s o f a transponde r locate d in th e ignitio n key , a receiver , a contro l unit , a n indicato r light , an d th e PCM .
Th e vehicl e ha s tw o kind s o f keys .
• Th e maste r ke y i s for :
ignitio n switch .
door locks .
trunk lock .
• Th e vale t ke y i s for :
ignitio n switch .
door locks .
• Th e learnin g ke y i s fo r rewritin g th e immobilize r sys -
tem.
NOTE : Thi s ke y canno t star t th e engine ; d o no t us e it
excep t fo r rewritin g th e system . I f someon e trie s t o
star t th e engin e wit h th e learnin g key , al l maste r an d
vale t key s mus t b e relearned .
Whe n th e ke y i s inserte d i n th e ignitio n an d turne d t o th e (II ) position , th e immobilize r contro l uni t send s powe r t o th e
transponde r throug h th e receiver .
Th e transponde r the n send s a code d signa l bac k throug h th e receive r t o th e contro l unit .
Th e contro l uni t i n tur n signal s th e PCM , a s wel l a s th e starte r cu t relay .
IMMOBILIZE R RECEIVE R
IGNITION KEY(Ha s built-i n transponder ) •
FUE L SUPPL Y
SYSTE M
• STARTIN G
SYSTEM
PCM
BLAC K
GRAY
RED
(cont'd )
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Problems an d Replacemen t Part s
Proble m
Master o r vale t ke y ha s bee n los t o r additiona l maste r o r vale t ke y is required .
Al l maste r an d vale t key s hav e bee n lost .
Learnin g ke y ha s bee n lost .
Immobilize r receive r doe s network .
Immobilize r contro l uni t doe s no t work .
PC M doe s no t work .
Ignitio n switc h doe s no t work .
Doo r ke y cylinde r ha s bee n broken . Part
s se t
PGM-Teste r
required?
YES
YES
YE S
NO
YE S
YE S
YES
NO (YES )
A
A x 2 , an d B
B
C
B
E
D
F (G )
Part s Set :
A: Vale t ke y
B : Immobilize r contro l uni t
Maste r ke y
Learnin g ke y
C : Immobilize r receive r
D : Ignitio n switc h wit h immobilize r receive r
Immobilize r contro l uni t
Maste r ke y
Learnin g ke yE: PC M
F: Doo r ke y cylinde r
Maste r key s fo r door s ope n o r locke d
G : Ignitio n switc h wit h immobilize r receive r
Immobilize r contro l uni t
Maste r ke y
Learnin g ke y
Doo r ke y cylinder s
Trun k ke y cylinde r
NOTE:
• Th e immobilize r syste m ca n stor e u p to fiv e ke y codes .
• I f i t i s necessar y t o rewrit e th e immobilize r contro l uni t t o lear n a ne w key , th e deale r need s th e customer' s vehicle , al l
it s maste r key s an d vale t keys , it s learnin g key , an d th e Hond a PG M Teste r equippe d wit h a n immobilize r progra m
card . An y ke y tha t i s no t learne d durin g rewritin g wil l n o longe r star t th e engine .
• I f th e custome r ha s los t hi s key , an d canno t star t th e engine , contac t Acur a Custome r Relation s o r Roadsid e Assistance .
Before Testing :
• Du e t o th e actio n o f th e immobilize r system , th e engin e take s slightl y mor e tim e t o star t tha n engine s o f vehicl e
withou t a n immobilize r system .
• Whe n th e syste m is normal , an d th e prope r ke y i s inserted , th e indicato r ligh t come s o n fo r 2 seconds , the n i t wil l g o
off .
• I f th e indicato r start s t o blin k afte r 2 seconds , o r i f th e engin e doe s no t start , repea t th e startin g procedure .
If th e engin e stil l doe s no t start , perfor m th e immobilize r contro l uni t inpu t tes t an d transponde r an d immobilize r
receive r test .
• I f al l th e inpu t test s an d transponde r an d immobilize r receive r tes t prov e OK , chec k th e PC M (se e sectio n 11 ).
I f th e PC M is OK , th e immobilize r contro l uni t mus t b e faulty ; replac e th e immobilize r contro l unit , maste r ke y an d
learnin g ke y together , an d the n rewrit e th e PC M wit h th e Hond a PG M Tester .
If th e PC M is faulty , substitut e a known-goo d PCM , an d recheck . However , sinc e th e known-goo d PC M ha s a
differen t cod e store d int o it , i t mus t b e rewritte n wit h th e Hond a PG M Tester . Otherwise , th e engin e wil l no t start .
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Immobilizer Receive r Replacemen t
1. Remove the dashboard lower cover (see
section 20 ).
2 . Disconnec t th e ignitio n ke y ligh t socke t fro m th e
ignitio n ke y ligh t rin g b y turnin g th e socket .
IGNITIO NKEY SWITC H
IGNITIO N KE Y LIGH T
and SOCKE T
9. Tur n th e ignitio n ke y to 0, an d remov e it .
IMMOBILIZE R RECEIVE R
10. Tur n th e immobilize r receive r clockwise , an d
remov e it .
Installation :
1. Instal l th e ne w immobilize r receive r i n th e revers e
orde r o f removal .
2 . Inser t th e ignitio n ke y int o th e ke y cylinder , an d tur n
it t o "I" .
3. Inser t th e ke y cylinde r int o th e ke y cylinde r housin g
wit h pushin g th e loc k pin .
NOTE : Th e loc k pi n ca n b e pushe d b y pullin g th e
ke y i n positio n "I" .
4 . Th e remainin g installatio n i s th e revers e o f th e
remova l procedure .
NOTE : Thi s harnes s i s shielde d an d serve s a s a
communicatio n link ; b e carefu l no t t o damag e it .
7 . Tur n th e ignitio n ke y t o "I" .
8 . Pus h th e loc k pin , an d remov e th e ke y cylinde r b y
pullin g th e ignitio n key .
NOTE : Don' t pul l o n th e immobilize r receiver .
3
. Loose n th e screw , the n remov e th e ignitio n ke y
ligh t ring .
4 . Disconnec t th e immobilize r receive r 3 P connector .
5 . Remov e th e scre w an d th e ignitio n ke y switch .
6 . Remov e th e scre w fro m th e ke y cylinde r housing .
IMMOBILIZE R RECEIVE R3P CONNECTO R
IGNITION KEYLIGH T RIN G
KEY CYLINDE RHOUSING
PUS
H
LOC K PI N
KEY POSITIO N
KEY CYLINDE R
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To pag e 23-207
Drivin g Positio n Memor y Syste m (DPMS )
Troubleshootin g
Flowchart No . 1
Ignitio n Ke y Switch :
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 12 P connecto r A 4
termina l an d bod y ground . Ther e
shoul d b e 1 V or les s wit h th e igni -
tio n ke y inserte d an d 4 V or mor e
wit h th e ignitio n ke y removed .
• Ope n o r shor t i n th e BLU/WH T
wir e
- Fault y ignitio n ke y switc h
Ar
e voltage s a s specified ?
NO
YE S
Transmissio n Rang e Switch :Check fo r voltag e betwee n th e col -
um n contro l uni t 12 P connecto r
A1 0 termina l an d bod y ground .
Ther e shoul d b e 1 V or les s wit h
the shif t leve r i n o rmore wit h th e shif t leve r i n an yothe r positio n tha n
• Ope n o r shor t i n th e BLK/BL U
wir e
- Fault y transmissio n rang e switc h
NOAr e voltage s as specified ?
YES
Steerin g Colum n Aut o Switch :
Chec k fo r voltage betwee n th e
colum n contro l uni t 16 P connec -
to r B 4 termina l an d bod y ground .
Ther e shoul d b e 1 V or les s wit h
th e AUT O switc h O N an d 4 V or
mor e wit h th e AUT O switc h OFF .
Ar e voltage s a s specified ?
NO• Ope n o r shor t in th e L T BL U wir e
- Fault y AUT O switc h
YES
Vehicl e Spee d Senso r (VSS) :
1 . Rais e th e fron t o f th e vehicle ,
support i t wit h th e safet ystands , pu t i t i n neutral , an d
slowl y rotat e on e whee l wit h
othe r whee l blocked .
2 . Chec k fo r voltag e betwee n th e
colum n contro l uni t 12 P con -
necto r A1 1 termina l an d bod y
ground .
Doe s voltag e puls e fro m O to
abou t 5 V or more ? •
Ope n o r shor t i n th e BLU/WH T
wir e
- Fault y VS S (se e pag e 23-86 )
NO
YE S
Steerin g Colum n Positio n Sensor :
Chec k fo r voltag e betwee n th e
column contro l uni t 16 P connec -
to r B 2 an d B1 0 terminals .
NOTE : Al l colum n contro l uni t
connector s mus t b e connected .
I s ther e 5 V ?
NO • Ope n o r shor t in th e GR Y o r BR N
wire s
• Fault y steerin g positio n sensor s
YES
COLUM N CONTRO L UNI T16P CONNECTO R "B "
COLUM N CONTRO L UNI T12P CONNECTO R "A "
COLUM N CONTRO L UNI T
16 P CONNECTO R "B "
NOTE
: Al l connecto r view s ar e fro m wire
sid e o f femal e terminals .
COLUM N CONTRO L UNI T
12P CONNECTO R "A "
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Flowchart No . 2
Ignitio n Ke y Switch :
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 12 P connecto r A 4
termina l an d bod y ground . Ther e
shoul d b e 1 V or les s wit h th e igni -
tio n ke y inserte d an d 4 V or mor e
with th e ignitio n ke y removed .
Are voltages as specified ? •
Ope n o r shor t i n th e BLU/WH T
wir e
• Fault y ignitio n ke y switc hNO
YE S
Transmissio n Rang e Switch :
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 12 P connecto r
A1 0 termina l an d bod y ground .
Ther e shoul d b e 1 V or les s wit h
the shif t leve r i n o r
mor e wit h th e shif t leve r i n an y
othe r positio n tha n
Ar e voltage s a s specified ? •
Ope n o r shor t i n th e BLK/BL U
wir e
• Fault y transmissio n rang e switc h
NO
YE S
Vehicl e Spee d Senso r (VSS) :
1 . Rais e th e fron t o f th e vehicle ,
support i t wit h th e safet ystands, pu t i t i n neutral , an dslowl y rotat e on e whee l wit hothe r whee l blocked .
2 . Chec k fo r voltag e betwee n th e
colum n contro l uni t 12 P con -necto r A1 1 termina l an d bod y
ground .
• Ope n o r shor t i n th e BLU/WH T
wir e
• Fault y VS S (se e pag e 23-86 )
Doe
s voltag e puls e fro m O to
abou t 5 V or more ?
NO
YE S
Positio n Butto n 1 :
Chec k fo r continuit y betwee n th e
colum n contro l uni t 16 P connecto r
B 7 an d B1 6 terminals . Ther e
should b e continuit y wit h th e posi -tion butto n 1 pushe d an d n o conti -nuity wit h th e positio n butto n 1released .
Is continuit y a s specified ? •
Ope n o r shor t i n th e BLU/WH T o rYEL/BL U wire s• Fault y drivin g positio n memor y
switc h
NO
YE S
Positio n Butto n 2 :
Chec k fo r continuit y betwee n th e
colum n contro l uni t 16 P connecto r
B1 5 an d B1 6 terminals . Ther e
should b e continuit y wit h th e posi -tion butto n 2 pushe d an d n o conti -nuity wit h th e positio n butto n 2released .
I s continuit y a s specified ?
NO• Ope n o r shor t i n th e BLU/YE L o r
YEL/BL U wire s
• Fault y drivin g positio n memor y
switc h
YES
To pag e 23-210 NOTE
: Al l connecto r view s ar e fro m wir e
sid e o f femal e terminals .
COLUM N CONTRO L UNI T
12 P CONNECTO R "A "
COLUM N CONTRO L UNI T
16 P CONNECTO R "B "
(cont'd )
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Cavity Wir e Test conditio n Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
A5
A6
C 3
A1 2
C1
A4
A3
A 9
A1 0
A1 1
BLK/YE L
WHT/YE L
RED/YEL
BLK
BLK
BLU/WH T
RED/GR N
RED
BLK/BL U
BLU/WH T
Ignition switc h O N (II )
Unde r al l condition s
Unde r al l condition s
Unde r al l condition s
Ignitio n ke y inserte d
int o th e ignitio n switc h
Ignitio n ke y remove d
fro m th e ignitio n switc h
Unde r al l condition s
(observ e mem o
1 indicator )
Unde r al l condition s
(observ e mem o
2 indicator )
Shif t leve r i n positio n
Shift leve r i n an y othe r
positio n tha n
Rais e th e fron t o f th e
vehicl e suppor t i t wit h
safet y stands , pu t i t i n
neutral , an d rotat e on e
whee l wit h th e othe r
blocked , the n tur n th e
ignitio n switc h O N (II) .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r voltag e to ground :
Ther e shoul d b e 1 V or less .
Chec k fo r voltag e to ground :
Ther e shoul d b e 4 V or more .
Attac h t o ground :
Th e indicato r shoul d com e on .
Chec k fo r voltag e to ground :
Ther e shoul d b e 1 V or less .
Chec k fo r voltag e to ground :
Ther e shoul d b e 4 V or more .
Chec k fo r voltag e to ground :
Th e voltag e shoul d puls e fro m 0 V
t o abou t 5 V or more . •
Blow n No . 2 0 (2 0 A ) fus e in th e
under-das h fuse/rela y bo x
• A n ope n in th e wir e
• Blow n No . 5 6 (7. 5 A ) fus e in th e
under-hoo d fuse/rela y bo x
• A n ope n in th e wir e
• Blow n No . 5 4 (2 0 A ) fus e in th e
under-hoo d fuse/rela y bo x
• A n ope n in th e wir e
• Poo r groun d (G401 , G40 2 o r G251 )
• A n ope n in th e wir e
• Poo r groun d (G401 , G40 2 o r G251 )
• Fault y ignitio n ke y switc h
• A n ope n in th e wir e
• Blow n No . 5 6 (7. 5 A ) fus e in th e
under-hoo d fuse/rela y bo x
• Fault y LE D in th e drivin g positio n
memor y switc h
• A n ope n in th e wir e
• Fault y transmissio n rang e switc h
• A n ope n in th e wir e
• Fault y transmissio n rang e switc h
• A n ope n in th e wir e
• Fault y vehicl e spee d senso r (VSS )
• A n ope n in th e wir e
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System Function s
• Multiple x Contro l Syste m (Multiple x function , Wak e up/slee p function , Fail-saf e function , Self-diagnosi s function* )
* : Self-diagnosi s functio n mod e 1 is th e self-diagnosi s fo r th e multiple x contro l system .
Self-diagnosi s functio n mod e 2 is th e failur e diagnosi s fo r th e inpu t lin e o f eac h system .
• Integrate d Contro l Syste m (Engin e oi l pressur e indicato r flashe r circuit , Key-i n reminde r circuit , Light-o n reminde r circuit ,
Sea t bel t reminde r circuit )
• Das h Light s Brightnes s Contro l
• Entr y Ligh t Contro l Syste m
• Rea r Windo w Defogge r
• Trun k li d Opene r
• Powe r Doo r Lock s (wit h keyles s entr y system )
• Powe r Windo w (wit h key-of f timer operation )
• Wiper/washer s (wit h spee d responden t intermitten t wiper )
• Securit y Alar m Syste m
• Interloc k Syste m (se e sectio n 14 )
Multiple x Communicatio n Syste m
Multiple x Communicatio n Function s
• T o reduc e th e numbe r o f wir e harnesses , digita l signal s ar e sen t vi a share d multiple x communicatio n line s rather than
sendin g norma l electrica l signal s throug h individua l wires .
• Th e inpu t signal s fro m eac h switc h ar e converte d t o digita l signal s a t th e centra l processin g uni t (CPU) . Th e digita l
signal s ar e sen t fro m th e transmitte r uni t t o th e receive r uni t a s seria l signals .
• Th e transmitte d signa l i s converte d t o a switc h signa l a t th e receive r unit , an d it operate s th e relate d component .
• Ther e ar e exclusiv e communicatio n line s betwee n eac h o f th e multiple x contro l units :
Door Driver' s (fro m th e doo r t o th e driver' s multiple x contro l units ) Wir e color : BRN/YE L
Driver's Passenger' s (fro m th e driver' s t o th e passenger' s multiple x contro l units ) Wir e color : BRN/WH T
Passenger' s Driver' s (fro m th e passenger' s t o th e driver' s multiple x contro l units ) Wir e color : RED/YE L
• Th e contro l unit s alway s communicat e vi a thes e line s whe n th e syste m is operating , an d the y sto p communicatin g
whe n th e syste m is OFF .
Wake-u p an d Slee p Function s
• Th e multiple x contro l syste m ha s "wake-up " an d "sleep " function s t o decreas e parasiti c dra w o n th e batter y whe n th e
ignitio n switc h is OFF .
• I n th e slee p mode , th e multiple x contro l uni t stop s th e function s (communicatio n an d CP U control ) whe n i t i s no t nec -
essar y fo r th e syste m to operate .
• A s soo n a s an y operatio n i s don e (fo r example , a doo r i s unlocked) , th e relate d contro l uni t i n th e slee p mod e wake s u p
an d begin s t o functio n a t once . Thi s contro l uni t als o send s a wake-u p signa l t o th e othe r contro l unit s vi a th e commu -
nicatio n lines .
• Whe n th e ignitio n switc h i s turne d OFF , ther e i s abou t a 30 secon d dela y befor e th e contro l unit s g o fro m th e wake-u p
mod e t o th e slee p mode .
• I f an y doo r i s open , th e slee p mod e wil l no t function .
Fail-safe Function s
• T o preven t imprope r operation , th e multiple x contro l syste m ha s a fail-saf e function . I n th e fail-saf e mode , th e outpu t
signa l i s fixe d whe n an y par t o f th e syste m malfunction s (fo r example , a fault y contro l uni t o r communicatio n line) .
• Eac h contro l uni t ha s a hardwar e fail-saf e functio n tha t fixe s th e outpu t signa l whe n ther e i s an y CP U malfunctio n an d
a softwar e fail-saf e functio n tha t ignore s th e signa l fro m th e malfunctionin g contro l uni t an d allow s th e syste m to
operat e normally .
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