ACURA RL KA9 1996 Service Repair Manual

Driving Positio n Memor y Syste m (DPMS )
Troubleshootin g (cont'd )
Flowchar t No . 7
Steerin g Colum n Switc h (Tilt) :Chec k fo r voltag e betwee n th e
colum n contro l uni t 16 P connec -
to r B 6 an d B1 6 terminal s wit h th e
tilt-u p switc h pushed . Chec k forvoltag e betwee n th e colum n con -
tro l uni t 16 P connecto r B1 4 an d
B1 6 terminal s wit h th e tilt-dow n
switc h pushed . Ther e shoul d b e 1
V o r les s wit h th e switc h pushe d
an d 4 V or mor e wit h th e switc h in
th e neutra l position .
Ar e voltage s a s specified ?
NO• Ope n o r shor t i n th e wire s
• Fault y steerin g colum n switc h
• Fault y colum n contro l uni t
Til t Motor :
Disconnec t th e 3 P connecto r fro m
the steerin g colum n til t motor .Check for voltag e betwee n the tiltmoto r 3 P connecto r No . 3 termi -nal an d bod y groun d wit h th e tilt -up switc h pushed . Chec k fo r volt -age betwee n th e til t moto r 3 Pconnecto r No . 1 termina l an d
bod y groun d wit h th e tilt-dow n
switc h pushed . Ther e shoul d b e
10 V or mor e wit h th e switc hpushed an d 1 V or les s wit h th eswitc h in th e neutra l position .
Ar e voltage s a s specified ?
NO• Ope n o r shor t i n th e wire s
• Fault y steerin g colum n switc h
• Fault y colum n contro l uni t
YES
Tes t th e steerin g colum n til t moto r(see pag e 23-226 ).
Doe s th e moto r ru n smoothl y
an d withou t noise ? Replac
e th e steerin g colum n til tmotor .
NO
YE S
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r B 1
an d B1 0 terminals . Ther e shoul d
b e 2. 5 V or mor e wit h th e steerin g
colum n i n th e fully-u p positio n
an d 2. 5 V or les s wit h th e steerin g
colum n i n th e fully-dow n position .
NOTE : Al l colum n contro l uni t con -
nector s mus t b e connected . NOTE
: I f necessary , appl y powe r an d
groun d t o th e til t moto r t o mov e th e col -
um n t o th e fully-u p an d fully-dow n posi -
tion s (se e pag e 23-226 ).
• Ope n o r shor t i n th e BL U o r BR Nwire s• Fault y til t positio n senso r
• Fault y colum n contro l uni t
NO
Substitut e a known-goo d colum ncontrol unit , an d recheck . I f th esystem s no w wor k OK , replac e
th e origina l colum n contro l unit .
Ar
e voltage s a s specified ?
YES
COLUM N CONTRO L UNI T
16 P CONNECTO R "B "
NOTE
: Al l connecto r view s ar e fro m wir e sid e
of femal e terminals .
COLUMN CONTRO L UNI T
16 P CONNECTO R "B "
TIL T MOTO R 3 P CONNECTO R
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Flowchart No . 8
Steerin g Colum n Switc h (Extend -
retract )
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r
B1 3 an d B1 6 terminal s wit h th e
exten d switc h pushed .
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r B 5
an d B1 6 terminal s wit h th e retrac tswitch pushed . Ther e shoul d b e 1
V o r les s wit h th e switc h pushe d
an d 4 V or mor e wit h th e switc h in
th e neutra l position .
• Ope n o r shor t i n th e wire s
• Fault y steerin g colum n switc h
• Fault y colum n contro l uni t
NOAr e voltage s a s specified ?
YES
Extend-retrac t Motor :Disconnec t th e 2 P connecto r fro m
th e steerin g colum n extend-retrac t
motor.Chec k fo r voltag e betwee n th e
extend-retrac t moto r 2 P connecto r
No . 2 termina l an d bod y groun d
with th e exten d switc h pushed .Check fo r voltag e betwee n th e
extend-retrac t moto r 2 P connecto r
No . 1 termina l an d bod y groun d
wit h th e retrac t switc h pushed .
Ther e shoul d b e 1 0 V or mor e
wit h th e switc h pushe d an d 1 V or
les s wit h th e switc h in th e neutra lposition .
Ar e voltage s a s specified ?
NO• Ope n o r shor t i n th e wire s
• Fault y steerin g colum n switc h
• Fault y colum n contro l uni t
YES
Tes t th e steerin g colum n extend -
retrac t moto r (se e pag e 23-226 ).
Replace th e steerin g colum n
extend-retrac t motor .
Doe
s th e moto r ru n smoothl y
an d withou t noise ?
YES
NO
NOTE : I f necessary , appl y powe r an dgroun d t o th e extend-retrac t moto r t omov e th e colum n t o th e fully-extende d
an d fully-retracte d positio n (se e pag e
23-226 ).
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r B 9
an d B1 0 terminals . Ther e shoul d
b e 2. 5 V or mor e wit h th e steerin g
colum n i n full y extende d positio n
an d 2. 5 V or les s wit h th e steerin g
colum n in full y retracte d position .
NOTE : Al l colum n contro l uni t con -
nector s mus t b e connected .
Ar e voltage s a s specified ?
NO• Ope n o r shor t i n th e PN K o r BR Nwire s• Fault y extend-retrac t positio nsensor• Fault y colum n contro l uni t
Substitut e a known-goo d colum n
contro l unit , an d recheck . I f th e
system s no w wor k OK , replac e
th e origina l colum n contro l unit .YES
COLUM N CONTRO L UNI T
16 P CONNECTO R "B "
(cont'd )
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
16 P CONNECTO R "B "
EXTEND-RETRAC T MOTO R2P CONNECTO R
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Driving Positio n Memor y Syste m (DPMS )
Troubleshootin g (cont'd )
Flowchar t No . 9
MEM O Button :
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r B 8
an d B1 6 terminals . Ther e shoul d
b e 1 V or les s wit h th e MEM O but -
to n pushe d an d 5 V or mor e wit h
th e MEM O butto n released .
Ar e voltage s a s specified ?
YES
Positio n Butto n 1 :
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r B 7
an d B1 6 terminals . Ther e shoul d b e
1 V or les s wit h th e positio n butto n
1 pushe d an d 5 V or mor e wit h th e
positio n butto n 1 released .
Ar e voltage s a s specified ?
YES
Positio n Butto n 2 :
Chec k fo r voltag e betwee n th e
colum n contro l uni t 16 P connec -tor B1 5 an d B1 6 terminals . Ther e
shoul d b e 1 V or les s wit h th e
positio n butto n 2 pushe d an d 5 V
or mor e wit h th e positio n butto n2 released .
Ar e voltage s a s specified ?
YES
Communicatio n Lines :
Chec k fo r continuit y betwee n th e
colum n contro l uni t 12 P connecto r
A 1 termina l an d sea t contro l uni t
12 P connecto r A 1 terminal . Chec k
fo r continuit y betwee n th e colum n
contro l uni t 12 P connecto r A 7 ter -
mina l an d sea t contro l uni t 12 P
connecto r A 7 terminal .
I s ther e continuity ?
YES
Communicatio n Lines :
Chec k fo r continuit y betwee n th e
colum n contro l uni t 12 P connec -
to r A 1 termina l an d mirro r contro l
unit 12 P connecto r A 1 terminal .Check fo r continuit y betwee n th e
colum n contro l uni t 12 P connec -
to r A 7 termina l an d mirro r contro l
uni t 12 P connecto r A 7 terminal .
I s ther e continuity ?
YES
Substitut e a known-goo d colum n
contro l unit , an d recheck . I f th e
system s no w wor k OK , replac e
th e origina l colum n contro l unit . 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
16 P CONNECTO R "B "
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 COLUM
N CONTRO L UNI T
12 P CONNECTO R "A "
Ope n in th e L T GRN/RE D o r BLK /
WH T wire s SEA
T CONTRO L UNI T
12 P CONNECTO R "A "
COLUM N CONTRO L UNI T
12 P CONNECTO R "A "
Ope n in th e L T GRN/RE D o r BLK /
WH T wire s
MIRROR CONTRO L UNI T
12 P CONNECTO R "A "
NO
NO
N O
NO
N O
Ope n o r shor t i n th e YEL/WH T o r
YEL/BL U wire s
Fault y drivin g positio n memor y
switc h
Ope n o r shor t i n th e BLU/WH T o r
YEL/BL U wire sFault y drivin g positio n memor y
switc h
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Flowchart No . 1 0
Powe r Mirro r Switch :
Tur n th e ignitio n switc h O N (II) .
Chec k fo r voltag e betwee n th e
powe r mirro r switc h connecto r A 6
an d A 7 terminals .
I s ther e batter y voltage ?
NO• Ope n o r shor t i n th e YEL/BL K
wir e
• Ope n in th e BL K wir e
• Fault y powe r mirro r switc h
Powe r Mirro r Switch :
Chec k fo r voltag e betwee n th e mir -
ro r contro l uni t 12 P connecto r A 5
an d A1 2 terminal s wit h th e mirro r
switc h presse d toward UP.
• Ope n o r shor t i n th e RED/WH T
wire• Fault y powe r mirro r switc h
NOIs ther e batter y voltage ?
YES
Powe r Mirro r Switc h (Righ t Mir -ror):1. Mov e th e selecto r switc h t oRIGHT .2. Chec k fo r voltag e betwee n th emirro r contro l uni t 12 P con -necto r A 3 an d A1 2 terminal s
wit h th e mirro r switc h presse d
towar d RIGHT .
• Ope n o r shor t i n th e BLU/GR N
wir e
• Fault y powe r mirro r switc h
NOIs ther e batter y voltage ?
YES
Powe r Mirro r Switc h (Righ t Mir -ror):Chec k fo r voltag e betwee n th e mir -
ro r contro l uni t 12 P connecto r A 4
an d A1 2 terminal s wit h th e mirro r
switc h presse d towar d LEF T o r
DOWN .
Is ther e batter y voltage ? •
Ope n o r shor t i n th e BLU/OR N
wir e
• Fault y powe r mirro r switc h
YES
NO
Powe r Mirro r Switc h (Lef t Mirror) :
Chec k fo r voltag e betwee n th e mir -
ro r contro l uni t 12 P connecto r A1 0
an d A1 2 terminal s wit h th e mirro r
switch presse d towar d LEF T o rDOWN .
To pag e 23-222
YE S
NOIs ther e batter y voltage ? •
Ope n o r shor t i n th e YE L wir e
• Fault y powe r mirro r switc h
NOTE: Al l connecto r view s ar e fro m wir e sid eof femal e terminals .
MIRRO R CONTRO L UNI T
12 P CONNECTO R "A "
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Driving Positio n Memor y Syste m (DPMS )
Troubleshootin g (cont'd )
From pag e 23-221
I s ther e batter y voltage ?
NO• Ope n o r shor t i n th e BL U wir e
• Fault y powe r mirro r switc h
YES
Powe r Mirro r Actuato r (Righ t Mir -ror) :NOTE : Al l mirro r contro l uni t con -
nector s mus t b e disconnected .
1 . Disconnec t th e mirro r contro l
uni t 12 P an d 16 P connectors .
2 . Connec t th e mirro r contro l
uni t 12 P connecto r A1 1 termi -
nal t o th e mirro r contro l uni t16P connecto r B 3 terminal .
3 . Connec t th e mirro r contro l uni t
16 P connecto r B 4 o r [B12 ] ter -
mina l t o ground . NOTE
: Al l connecto r view s ar e fro m wir e sid e
o f femal e terminals .
MIRRO R CONTRO L UNI T
12 P CONNECTO R "A "
MIRRO R CONTRO L UNI T
16 P CONNECTO R "B "
• Ope n o r shor t i n th e BRN , YE L o r
[BLU ] wire s
• Fault y righ t mirro r actuato r
Doe
s th e righ t mirro r swin g lef t
or [til t down]?
N O
YE S
Powe r Mirro r Actuato r (Lef t Mir -ror):NOTE : Al l mirro r contro l uni t con -
nector s mus t b e disconnected .
1 . Connec t th e mirro r contro l uni t
12 P connecto r A1 1 termina l t o
th e mirro r contro l uni t 16 P con -
necto r B1 1 terminal .
2. Connec t th e mirro r contro l uni t16P connecto r B 2 o r [B10 ] ter -
mina l t o ground .
Doe s th e lef t mirro r swin g
left o r [til t down] ?
• Ope n o r shor t i n th e BRN , YE L o r
[BLU ] wire s
• Fault y lef t mirro r actuato rNO
YE S
Powe r Mirro r Positio n Senso r(Common) :1. Connec t th e al l mirro r contro l
uni t connectors .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Chec k fo r voltag e betwee n th e
mirro r contro l uni t 16 P connec -
to r B 8 an d B1 6 terminals .
• Ope n o r shor t i n th e RED/BL K o r
BRN/WH T wire s
• Fault y powe r mirro r positio n
sensor• Fault y mirro r contro l uni t
NOIs ther e 5V ?
YES
To pag e 23-223
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Substitute a known-goo d mirro r
contro l unit , an d recheck . I f th e
system s no w wor k OK , replac e
th e origina l mirro r contro l unit . •
Ope n o r shor t i n th e GR Y o r
BRN/WH T wire s
• Fault y lef t powe r mirro r posi -
tio n senso r
• Fault y mirro r contro l uni t
NOAr e voltage s a s specified ?
YES
Lef t Powe r Mirro r Positio n Sen -sor (Vertical) :
Chec k fo r voltag e betwee n th e mir -
ro r contro l uni t 16 P connecto r B1 4
and B1 6 terminals . A s th e mirro rtilts fro m up to down , th e voltag eshould chang e fro m abou t 1 V to3V .
YES
Are voltage s a s specified ?NO
• Ope n o r shor t i n th e GRN/WH T
o r BRN/WH T wire s
• Fault y lef t powe r mirro r posi -
tio n senso r
• Fault y mirro r contro l uni t
Lef
t Powe r Mirro r Positio n Sen -
so r (Horizontal) :
Chec k fo r voltag e betwee n th e
mirro r contro l uni t 16 P connecto r
B6 an d B1 6 terminals . A s th e mir -ror swing s fro m lef t t o right , th evoltag e shoul d chang e fro m
abou t 3 V to 1 V .
YE S
Are voltages as specified ?NO
• Ope n o r shor t i n th e GR Y o r
BRN/WH T wire s
• Fault y righ t powe r mirro r posi -
tion senso r• Fault y mirro r contro l uni t
Righ
t Powe r Mirro r Positio n Sen -
so r (Vertical) :
Chec k fo r voltag e betwee n th e mir -
ro r contro l uni t 16 P connecto r B1 5
and B1 6 terminals . A s th e mirro rtilts u p t o down , th e voltag eshould chang e fro m abou t 1 V to 3V .
YE S
Are voltages as specified ?
• Ope n o r shor t i n th e GR N o rBRN/WH T wire s
• Fault y righ t powe r mirro r posi -
tio n senso r
• Fault y mirro r contro l uni tNO
Righ t Powe r Mirro r Positio n Sen -
so r (Horizontal) :
Chec k fo r voltag e betwee n th e mir -
ror contro l uni t 16 P connecto r B 7an d B1 6 terminals . A s th e mirro rswings fro m righ t t o left , th e volt -
ag e shoul d chang e fro m abou t
3Vto 1 V .
Fro
m pag e 23-222
NOTE: Al l connecto r view s ar e fro m wir e sid e
of femal e terminals .
MIRROR CONTRO L UNI T
16 P CONNECTO R "B "
(cont'd )
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Driving Positio n Memor y Syste m (DPMS )
Troubleshootin g (cont'd )
Flowchar t No . 1 1
MEM O Button :
Chec k fo r voltag e betwee n th e col -
um n contro l uni t 16 P connecto r B 8
an d B1 6 terminals . Ther e shoul d
b e 1 V or les s wit h th e MEM O but -
to n pushe d an d 5 V or mor e wit h
th e MEM O butto n released . 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
16 P CONNECTO R "B "
• Ope n o r shor t i n th e YEL/WH T o r
YEL/BL U wire s
• Fault y drivin g positio n memor y
switc h
NOAr e voltage s a s specified ?
YES
Indicato r 1 :
1 . Disconnec t th e colum n con -
trol uni t 12 P connecto r "A" .2. Attac h th e colum n contro l uni t12P connecto r A 3 termina l (har -ness side ) t o ground .
Doe s indicato r 1 com e on ?
NO
• Ope n o r shor t i n th e WHT/YE L o r
RED/GR N wire s
• Fault y indicato r 1 (LED )
• Fault y drivin g positio n memor y
switc h
YES
Indicato r 2 :
Attac h th e colum n contro l uni t 12 P
connecto r A 9 termina l (harnes s
side ) t o ground .
• Ope n o r shor t i n th e WHT/YE L o r
RE D wire s
• Fault y indicato r 2 (LED )
• Fault y drivin g positio n memor y
switc h
Doe
s indicato r 2 com e on ?NO
YE S
Substitut e a known-goo d colum n
contro l unit , an d recheck . I f th e
system s no w wor k OK , replac e
th e origina l colum n contro l unit .
COLUM N CONTRO L UNI T12P CONNECTO R "A "
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Driving Positio n Memor y
Switc h Tes t
1. Remov e th e driver' s doo r pane l (se e sectio n 20 ).
2 . Disconnec t th e 10 P connecto r fro m th e memor y
switch .
MEMO BUTTO N
INDICATOR S(LED)
Termina l sid e o fmal e terminal s
POSITIONBUTTON S
3. Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h positio n accordin g t o th e table .
3. Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h positio n accordin g t o th e table .
Steerin g Colum n Switc h Tes t
1. Remove the steering column covers (see
section 20 ).
2 . Disconnec t th e 7 P connecto r fro m th e switch , the n
remov e th e switc h fro m th e steerin g colum n lowe r
cover .
STEERIN G COLUM N SWITC H
STEERIN G COLUM NLOWER COVE R
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Driving Positio n Memor y Syste m (DPMS )
Tilt/Extend-retrac t Moto r Tes t
1. Remove the steering column covers (see
section 20 ).
2 . Disconnec t th e connecto r fro m eac h motor .
EXTEND -RETRAC TMOTOR
EXTEND-RETRAC T MOTO R TIL T MOTO R
2 P CONNECTO R 3 P CONNECTO R
3. Tes t th e motor s accordin g t o th e table :
Tilt Motor :
Extend-retrac t Motor :
CAUTION : Whe n a moto r stop s running , disconnec t
batter y powe r immediately .
Tilt/Extend-retrac t Positio n Senso r
Test
1. Remove the steering column covers (see
section 20 ).
2 . Disconnec t th e 4 P connecto r fro m th e sensor .
EXTEND -RETRAC TPOSITION
SENSO R
4 P CONNECTO R
Termina l sid e o f
mal e terminal s
3. Measur e resistanc e betwee n th e terminal s i n eac h
positio n accordin g t o th e table .
Positio nTermina lResistanc e
Terminal sid e o fmal e terminal s
TIL
T
MOTO R
TILT
POSITIO N
SENSO R
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2. Disconnec t th e 10 P connecto r fro m th e switch , the n
remov e th e switc h fro m th e cove r b y removin g it s
tw o mountin g screws .
Driver's Powe r Sea t Switc h Tes t
1. Remov e th e adjustmen t switc h cover , an d pul l of f
th e adjustmen t switc h kno b (se e sectio n 20 ).
DRIVER' S POWE R SEA TADJUSTMEN T SWITC H
3. Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h positio n accordin g to th e table .
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