ACURA RL KA9 1996 Service Repair Manual

Driving Positio n Memor y Syste m (DPMS )
Power Mirro r Contro l Uni t Inpu t Tes t
1. Remov e th e driver' s doo r pane l (se e sectio n 20 ).
2 . Disconnec t th e powe r mirro r contro l uni t connectors .
3 . Inspec t th e connecto r an d socke t terminal s to b e sur e the y ar e al l makin g goo d contact .
• I f th e terminal s ar e bent , loos e o r corroded , repai r the m as necessary , an d rechec k th e system .
• I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
I f a tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
If al l th e inpu t test s prov e OK , substitut e a known-goo d contro l unit , an d rechec k th e system .
NOTE:
• I f al l th e contro l uni t (steerin g column , powe r seat , powe r mirror ) inpu t test s prov e OK , disconnec t al l thre e
contro l units , an d chec k fo r open s o r short s in th e communicatio n lines .
• Al l connecto r view s ar e fro m wir e sid e o f femal e terminals .
12P CONNECTO R "A "
BLU/GR N BLU/OR N
L T GRN/RE D
RED/WHT
WHT/YE L
BLK/WHT
YEL
BLU
YEL/BL K
BLK
16P CONNECTO R "B "
WHT/YE L ('9 9 - 0 1 models )
RED/YE L ('9 6 - 9 8 models )
YEL
BR N
YEL
GRN/WH T
GRN
RED/BL K
BRN/WH T
GRY
GR YBLU
BR NBLU
BLKPOWE R MIRRO R CONTRO L UNI T
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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
A6
B1
A1 1
A1 2
B9
A 3
A 4
A5
A9
A1 0
WHT/YE L
RED/YEL
(WHT/YEL )
YEL/BLK
BLK
BL K
BLU/GR N
BLU/OR N
RED/WH T
YEL
BLU
Unde r al l condition s
Unde r al l condition s
Ignitio n switc h O N (II )
Unde r al l conditions .
Ignitio n switc h O N (II) ,
an d powe r mirro r selec -
to r switc h t o right , the n
pres s th e powe r mirro r
switc h "Right "
Ignitio n switc h O N (II) ,
an d powe r mirro r selec -
to r switc h t o right , the n
pres s th e powe r mirro r
switc h "Left " o r "Down "
Ignitio n switc h O N (II) ,
an d powe r mirro r selec -
to r switc h t o righ t o r left ,
the n pres s th e powe r
mirro r switc h "UP "
Ignitio n switc h O N (II) ,
an d powe r mirro r selec -
to r switc h t o left , the n
pres s th e powe r mirro r
switc h "Right "
Ignition switc h O N (II) ,
and powe r mirro r selec -
to r switc h t o left , the n
pres s th e powe r mirro r
switc h "Left " o r "Down "Chec
k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y to ground :
Ther e shoul d b e continuity .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
Chec k fo r voltag e to ground :
Ther e shoul d b e batter y voltage . •
Blow n No . 5 6 (7. 5 A ) fus e in th e under -
hood fuse/rela y bo x• A n ope n in th e wir e
• Blow n No . 5 4 (2 0 A ) o r 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 . 1 9 (7. 5 A ) fus e in th e under -
dash 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
• Blow n No . 1 9 (7. 5 A ) fus e in th e under -
dash fuse/rela y bo x• Fault y powe r mirro r switc h
• A n ope n in th e wir e
• Blow n No . 1 9 (7. 5 A ) fus e in th e under -
dash fuse/rela y bo x
• Fault y powe r mirro r switc h
• A n ope n in th e wir e
• Blow n No . 1 9 (7. 5 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 . 1 9 (7. 5 A ) fus e in th e under -
das h fuse/rela y bo x
• Fault y powe r mirro r switc h
• A n ope n in th e wir e
• Blow n No . 1 9 (7. 5 A ) fus e in th e under -
dash fuse/rela y bo x• Fault y powe r mirro r switc h
• A n ope n in th e wir e
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Driving Positio n Memor y Syste m (DPMS )
Power Mirro r Contro l Uni t Inpu t Tes t (cont'd )
12P CONNECTO R "A "
BLU/GR N BLU/OR NRED/WHT
WHT/YEL
16P CONNECTO R "B "
BR NYELGR N
RED/YE LGRN/WH TRED/BLK
Cavity
BLK/WH T
Wire
BLKYEL/BL K
Test conditio n
Test: Desire d resul t
BRN/WH TBLU BL U GR Y
Possible caus e if resul t i s no t obtaine d
B3•
B 4
B3•
B1 2
B2•
B1 1
B10*
B1 1
BR N•
YEL
BRN•
BLU
YE L•
BRN
BLU•
BR N
Connec t batter y powe r
t o th e B 3 terminal , an d
B 4 termina l t o th e B 9
termina l momentarily .
Connect batter y powe r
to th e B 3 terminal , an d
B12 termina l t o th e B 9
termina l momentarily .
Connec t batter y powe r
t o th e B1 1 terminal , an d
B2 termina l t o th e B 9termina l momentarily .
Connec t batter y powe r
t o th e B1 1 terminal , an d
B1 0 termina l t o th e B 9
termina l momentarily .
Check th e righ t powe r mirro r
actuato r operation :
Th e mirro r shoul d swin g left .
Chec k th e righ t powe r mirro r
actuato r operation :
The mirro r shoul d til t down .
Check th e lef t powe r mirro r
actuato r operation :
The mirro r shoul d swin g left .
Chec k th e lef t powe r mirro r
actuato r operation :
Th e mirro r shoul d til t down . •
Fault y righ t powe r mirro r actuato r
• A n ope n in th e wir e
• Fault y righ t powe r mirro r actuato r
• A n ope n in th e wir e
• Fault y lef t powe r mirro r actuato r
• A n ope n in th e wir e
• Fault y lef t powe r mirro r actuato r
• A n ope n in th e wir e
Reconnec t al l connector s to th e powe r mirro r contro l unit .
Cavit y Wir e Test conditio n
Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
B8•
B1 6
B7•
B1 6
B1 5•
B16
B6•
B1 6
B1 4•
B16
RED/BL K•
BRN/WH T
GRN•
BRN/WH T
GRY•
BRN/WH T
GRN/WH T•
BRN/WHT
GRY•
BRN/WH T
Ignition switc h O N (II )
NOTE : Connec t al l
mirro r contro l uni t
connectors .
Ignition switc h O N (II )
NOTE : Connec t al l
mirro r contro l uni t
connectors .
Ignition switc h O N (II )
NOTE : Connec t al l
mirro r contro l uni t
connectors .
Ignition switc h O N (II )
NOTE : Connec t al l
mirro r contro l uni t
connectors .
Ignition switc h O N (II )
NOTE : Connec t al lmirro r contro l uni t
connectors .
Check fo r voltag e betwee n th e
terminals :
Ther e shoul d b e abou t 5 V .
Chec k fo r voltag e betwee n th e
terminals :
Th e voltag e shoul d chang e fro m
abou t 1 V to 3 V whe n th e righ t
mirro r swing s fro m lef t t o right .
Chec k fo r voltag e betwee n th e
terminals :
Th e voltag e shoul d chang e fro m
abou t 1 V to 3 V whe n th e righ t
mirro r tilt s fro m up to down .
Check fo r voltag e betwee n th e
terminals :
Th e voltag e shoul d chang e fro m
abou t 1 V to 3 V whe n th e lef t mir -
ro r swing s fro m righ t t o left .
Chec k fo r voltag e betwee n th e
terminals :
Th e voltag e shoul d chang e fro m
abou t 1 V to 3 V whe n th e lef t mir -
ro r tilt s fro m u p t o down . •
Fault y powe r mirro r positio n
sensors
• A n ope n in th e wir e
• Fault y righ t powe r mirro r positio nsensor
• A n ope n in th e wir e
• Fault y righ t powe r mirro r positio n
sensor
• A n ope n in th e wir e
• Fault y lef t powe r mirro r positio n
sensor
• A n ope n in th e wir e
• Fault y lef t powe r mirro r positio n
sensor
• A n ope n in th e wir e
YEL
GR YBRNBLKYE L BL U
LT GRN/RE D
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Multiplex Contro l Syste m
Componen t Locatio n Inde x
IGNITIO N KE Y LIGH TReplacement , pag e 23-25 4
MULTIPLE X CONTRO L UNI T (PASSENGER'S )(Has built-i n th e beeper )
MULTIPLE X CONTRO L UNI T (DOOR )(built int o th e powe r windo wmaster switch )
MULTIPLE X CONTRO LINSPECTIO N CONNECTO R
[Wir e color : PNK/BL K an d BLK ]
MULTIPLE X CONTRO L UNI T (DRIVER'S )
Description
The multiple x contro l syste m is compose d o f thre e contro l unit s (locate d i n th e driver' s sid e kic k panel , passenger' s sid e
kic k panel , an d driver' s door) .
Thes e thre e contro l unit s sen d multiple x signal s ove r share d wires,reduc e th e numbe r o f contro l unit s an d wir e harnes s
weight , an d improve s th e qualit y o f electrica l function s b y mean s o f th e integrate d circuits . Thi s syste m ha s a built-i n self -
diagnosi s function .
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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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Multiplex Contro l Syste m
Troubleshootin g Guid e
A proble m ha s bee n detecte dwith a t leas t on e o f th e multiple x
contro l syste m functions .
Check th e No . 13 , 17 , 44 , an d 5 6fuses .
Are th e fuse s OK ? Fin
d an d repai r caus e o f th e
blow n fuse .NO
YE S
Chec k th e powe r an d groun d sys -
te m (se e pag e 23-245 ).
Is th e powe r an d groun dsystem OK ? Repai
r th e powe r an d groun dsystem.
NO
YE S
Chec k th e self-diagnosi s functio n
(Mod e 1 ) fo r a diagnosti c troubl e
cod e (DTC ) (se e pag e 23-248 ).
Find an d repai r th e caus e o f th e
DTC .
YESIs a DT C indicated ?
NO
Chec k th e wake-u p functio n (se epage 23-249 ).
N ORepai r th e wake-u p function .
I
s th e wake-u p functio n OK ?
YES
Troubleshoo t th e individua l sys -
te m functio n tha t ha d a problem .
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Power an d Groun d Tes t
Multiple x Contro l Uni t (Door) :
1 . Remov e th e driver' s doo r panel , an d disconnec t th e 20 P connecto r fro m th e doo r unit .
2 . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
• I f th e terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
• I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
I f a tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
If al l th e inpu t test s prov e OK , th e powe r windo w maste r switc h mus t b e faulty ; replac e it .
MULTIPLE X CONTRO L UNI T (DOOR )
DRIVER' SDOORPANE L
2OPCONNECTO R
Wir e sid e o f
femal e terminal s
WHT/YE
LGRN/WHT*
1
WHT/BLK*2
BL
KBLK*1
Cavit y Wir e Tes t conditio n Test : Desire d resul t Possibl e caus e if resul t i s no t obtaine d
WHT/YE L
GRN/WH T
or
WHT/BL K
BLK
Unde r al l condition s
Ignition switc h O N (II )
Unde r al l condition sChec
k fo r voltag e to ground :
Ther e shoul d b e batter y voltage .
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 . •
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 . 1 7 (2 0 A)*
1 o r No . 1 7
(7. 5 A)*2 fus e in th e under-das h
fuse/rela y bo x
• Fault y powe r windo w rela y
• A n ope n in th e wir e
• Poo r groun d (G401 , G402 )
• A n ope n in th e wir e
*1 : '9 6 -9 7 model s
*2 : '9 8 - 0 0 model s
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Multiplex Contro l Syste m
Power an d Groun d Tes t (cont'd )
Multiplex Contro l Uni t (Passenger's) :
1 . Remov e th e righ t kic k pane l (se e sectio n 20 ).
2 . Disconnec t th e 22 P an d 26 P connectors , the n remov e th e passenger' s unit .
3 . Inspec t th e connecto r an d socke t terminal s to b e sur e the y ar e al l makin g goo d contact .
• I f th e terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
• I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
I f a tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
If al l th e inpu t test s prov e OK , th e contro l uni t mus t b e faulty ; replac e it .
Wir e sid e o f
femal e terminal s
26P CONNECTO R
MULTIPLEX CONTRO L UNI T (PASSENGER'S )
22P CONNECTO R
Cavity Wir e Tes t conditio n Test : Desire d resul t Possibl e caus e if resul t i s no t obtaine d
Unde r al l condition s
Unde r al l condition s
Unde r al l condition s
Ignition switc h O N (II )
Unde r al l condition s
WHT/YEL
BLK
WH T
YEL
BLK
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 batter y voltage .
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 . •
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
• Poo r groun d (G401 , G402 )
• A n ope n in th e wir e
• Blow n No . 4 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
• Blow n No . 1 3 (7. 5 A ) fus e in th e
under-das h fuse/rela y bo x
• A n ope n in th e wir e
• Poo r groun d (G404 )
• A n ope n in th e wir e
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Multiplex Contro l Uni t (Driver's) :
1 . Remov e th e under-das h fuse/rela y bo x (se e pag e 23-66 ).
2 . Remov e th e driver' s uni t fro m th e under-das h fuse/rela y box .
3 . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
• I f th e terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
• I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connecto r an d th e fuse/rela y bo x socket .
— If an y tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , th e contro l uni t mus t b e faulty ; replac e it .
Wir e sid e o ffemal e terminal s
MULTIPLE X CONTRO L UNI T (DRIVER'S )16PCONNECTO R
26 P CONNECTO R *2
: Canad a
Cavity Wir e Tes t conditio n Test : Desire d resul t Possibl e caus e if resul t i s no t obtaine d
Unde r al l condition s
Unde r al l condition s
Ignition switc h O N (II )
Chec k fo r voltag e t o 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 t o ground :
Ther e shoul d b e batter y voltage .
Fuse/rela y
box socke t •
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 i n th e wir e
• Poo r groun d (G401 , G40 2 o r G251 )
• A n ope n in th e wir e
• Blow n No . 1 3 (7. 5 A ) fus e in th e
under-das h fuse/rela y bo x
• Fault y under-das h fuse/rela y bo x
A13
A8
A7
Wir e sid e o ffemal e terminal s
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Multiplex Contro l Syste m
Self-diagnosi s Functio n (Mod e 1 )
• 1 secon d afte r yo u g o int o self-diagnosi s functio n mod e 1 , th e functio n start s t o indicat e th e diagnosi s troubl e cod e
(DTC) , an d repeat s th e DT C ever y 3 seconds .
• Fro m mod e 1 , disconnec t th e SC S servic e connecto r fo r 5 to 1 0 seconds , the n reconnec t th e SC S servic e connector ,
an d th e functio n goe s fro m mod e 1 to mod e 2 .
Norma l condition s (Ignitio nswitch OFF )
Connec t th e SC S servic e connec -tor t o th e multiple x contro l inspec -tion connecto r fo r mor e tha n 5seconds .
The syste m is OK .NO*Doe s th e ignitio n ke y ligh t an dbuzze r com e ON?
YE S
MULTIPLE X CONTRO LINSPECTIO N CONNECTO R
Go to self-diagnosi s functio n mod e1 (se e pag e 23-248 ).
NOTE : I f n o DTC s ar e indicated , bu t yo u kno w th e syste m is abnormal , chec k thes e items :
• I f th e ligh t doe s no t com e o n an d th e buzze r doe s no t beep , chec k th e continuit y betwee n th e BL K wir e o f th e multiple x
contro l inspectio n connecto r an d bod y ground .
• I f eithe r th e ligh t o r th e bee p indicate s th e DTC(s) , chec k th e continuit y betwee n th e PNK/BL K wir e o f th e multiple x
contro l inspectio n connecto r an d multiple x contro l unit s (driver' s an d passenger's) .
Diagnosti c Troubl e Cod e (DTC ) Tabl e
NOTE : Th e number s in th e tabl e sho w th e troubleshootin g sequence .
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