1996 ACURA RL KA9 sensor

Driving Positio n Memor y Syste m (DPMS )
Troubleshootin g (cont'd )
From pag e 23-211
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 -tor B 8 an d B1 6 terminals .
Is ther e 5 V ?NO• Ope n o r shor t i n th e RED/BL K o rBRN/WH T wir e
• Fault y powe r mirro r positio n
sensorYES
Righ t Powe r Mirro r Positio n Sen -
so r (Horizontal) :
Chec k fo r voltag e betwee n th e
mirro r control unit 16 P connecto r
B 7 an d B 8 terminals . A s th e mir -
ror tilt s fro m sid e to side , voltag echange s fro m abou t 1 V to 3 V .
• Ope n o r shor t i n th e RED/BL K o rGR N wir e
• Fault y righ t powe r mirro r posi -
tion senso r
Are voltage s a s specified ?NO
YE S
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 B 8
an d B1 5 terminals . A s th e mirro r
swing s fro m u p t o down , voltag e
change s fro m abou t 3 V to 1 V .
Ar e voltage s a s specified ?
• Ope n o r shor t i n th e RED/BL K o rGR Y wir e
- Fault y lef t powe r mirro r posi -
tio n senso rNO
YE S
Lef t Powe r Mirro r Positio n Sen -sor (Horizontal) :Check fo r voltag e betwee n th e
mirro r contro l uni t 16 P connecto r
B 6 an d B 8 terminals . A s th e mir -
ro r tilt s fro m u p t o down , voltag e
change s fro m abou t 1 V to 3 V .
Ar e voltage s a s specified ?
NO• Ope n o r shor t i n th e RED/BL K o rGRN/WH T wir e
• Fault y lef t powe r mirro r posi -
tion senso rYES
To pag e 23-213 NOTE
: Al l connecto r view s ar e fro m wir e
sid e o f femal e terminals .
MIRROR CONTRO L UNI T16P CONNECTO R "B "
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• Ope n o r shor t i n th e wire s
• Fault y fron t up-dow n positio n
sensor• Fault y sea t contro l uni t
Substitut e a known-goo d sea t
contro l unit , an d recheck . I f th e
system s no w wor k OK , replac e
th e origina l sea t contro l unit .
Doe
s th e voltag e puls e betwee n
1 V or les s an d 5 V or mor e wit hthe fron t up-dow n moto r running ?
YES
NO
Chec k fo r voltag e betwee n th e sea t
contro l uni t 16 P connecto r B 1 ter -
mina l an d 12 P connecto r A 4 termi -
nal whil e operatin g th e fron t up -dow n moto r upwar d an d down -ward.
NOTE : Al l DPM S connector s mus t
b e connected .
Doe
s th e moto r ru n smoothl y
an d withou t noise ?
YES
NO• Ope n o r shor t i n th e OR N o r
BRN/WH T wir e betwee n moto r
an d th e 2 P connector .
• Fault y fron t up-dow n moto r
Tes
t th e driver' s powe r sea t fron t
up-dow n moto r (se e pag e 23-228 ). •
Ope n o r shor t i n th e wire s
• Fault y fron t up-dow n switc h
• Fault y sea t contro l uni t
NOAr e voltage s a s specified ?
YES
Powe r Sea t Fron t Up-dow n Motor :
Disconnec t th e 2 P connecto r fro m
th e driver' s powe r sea t fron t up -
dow n motor . Chec k fo r voltag e
betwee n th e driver' s powe r sea t
fron t up-dow n moto r 2 P connecto r
No. 1 termina l an d bod y groun dwith th e fron t up-dow n switc hpushe d up . Chec k fo r voltag e
betwee n th e driver' s powe r sea t
fron t up-dow n moto r 2 P connecto r
No. 2 an d bod y groun d wit h th efron t up-dow n switc h pushe ddown. Ther e shoul d b e 1 0 V or
mor e wit h th e switc h pushe d an d O
V wit h th e switc h in th e neutra lposition . •
Ope n o r shor t i n th e wire s
• Fault y fron t up-dow n switc h
• Fault y sea t contro l uni t
NO
YE S
Are voltage s a s specified ?
Powe
r Sea t Fron t Up-dow n
Switch :
Chec k fo r voltag e betwee n th e
sea t contro l uni t 16 P connecto r B 4
an d B1 6 terminal s wit h th e fron tup-dow n switc h pushe d up . Chec k
fo r voltag e betwee n th e sea t con -
trol uni t 16 P connecto r B1 2 an dB16 terminal s wit h th e fron t up -dow n switc h pushe d down .
Ther e shoul d b e 1 V or les s wit h
th e switc h pushe d an d 4 V or mor e
wit h th e switc h i n th e neutra l posi -
tion.
Flowchar t No . 5
Troubleshootin g (cont'd )
Driving Positio n Memor y Syste m (DPMS )
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 "
DRIVER' S POWE R SEA T
FRON T UP-DOW N MOTO R
2 P CONNECTO R
SEA T CONTRO L UNI T
12 P CONNECTO R "A "
SEA T CONTRO L UNI T
16 P CONNECTOR"B "
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Flowchart No . 6
Powe r Sea t Rea r Up-dow n Switch :
Chec k fo r voltag e betwee n th e sea t
contro l uni t 16 P connecto r B 3 an d
B1 6 terminal s wit h th e rea r up -
dow n switc h pushe d up . Chec k fo r
voltag e betwee n th e sea t contro l
uni t 16 P connecto r B1 1 an d B1 6
terminal s wit h th e rea r up-dow n
switc h pushe d down .
Ther e shoul d b e 1 V or les s wit h
th e switc h pushe d an d 4 V or mor e
wit h th e switc h i n th e neutra l posi -
tion.
Are voltage s a s specified ?NO• Ope n o r shor t i n th e wire s
• Fault y rea r up-dow n switc h
• Fault y sea t contro l uni t
YES
Powe r Sea t Rea r Up-dow n Motor :
Disconnec t th e 2 P connecto r fro m
th e driver' s powe r sea t rea r up -
dow n motor . Chec k fo r voltag e
between th e driver' s powe r sea trear up-dow n moto r 2 P connecto r
No . 1 termina l an d bod y groun d
with th e rea r up-dow n switc hpushed up . Chec k fo r voltag ebetwee n th e driver' s powe r sea t
rea r up-dow n moto r 2 P connecto r
No. 2 an d bod y groun d wit h th erea r up-dow n switc h pushe ddown. Ther e shoul d b e 1 0 V or
mor e wit h th e switc h pushe d an d
O V wit h th e switc h i n th e neutra l
position.
Are voltage s a s specified ?NO• Ope n o r shor t i n th e wire s
• Fault y rea r up-dow n switc h
• Fault y sea t contro l uni t
Tes t th e driver' s powe r sea t rea r
up-dow n moto r (se e pag e 23-228 ).
Doe s th e moto r ru n smoothl y
an d withou t noise ? •
Ope n o r shor t i n th e GR N o r
BRU/GR N wir e betwee n moto r
an d th e 2 P connector .
• Fault y rea r up-dow n moto r
NO
YE S
Chec k fo r voltag e betwee n th e
sea t contro l uni t 16 P connecto r
B 9 termina l an d 12 P connecto r
A4 termina l whil e operatin g th erea r up-dow n moto r upwar d an d
downward .
NOTE : Al l DPM S connector s mus t
b e connected .
• Ope n o r shor t i n th e wire s
• Fault y rea r up-dow n positio n
sensor• Fault y sea t contro l uni t
NODoe s th e voltag e puls e betwee n1 V or les s an d 5 V or mor e wit h
th e rea r up-dow n moto r running ?
YES
Substitut e a known-goo d sea t
contro l unit , an d recheck . I f th e
system s no w wor k OK , replac e
th e origina l sea t contro l unit . SEA
T CONTRO L UNI T
16 P CONNECTO R "B "
SEA
T CONTRO L UNI T
12 P CONNECTO R "A "
NOTE : Al l connecto r view s ar e fro m wir e sid eof femal e terminals .
SEA T CONTRO L UNI T
16 P CONNECTO R "B "
DRIVER' S POWE R SEA T
REA R UP-DOW N MOTO R
2 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 )
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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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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Driver's Powe r Sea t Positio n Senso r Tes t
CAUTION : B e carefu l no t t o damag e th e seat , interio r
tri m o r body .
1 . Remov e th e driver' s sea t (se e sectio n 20 ).
2 . Disconnec t th e connecto r fro m eac h powe r sea t
memor y senso r an d motor .
RECLIN EPOSITIO NSENSOR
REARUP-DOW NPOSITIONSENSOR
FRONT
UP-DOW N
POSITIO N
SENSOR
SLIDEPOSITIO NSENSOR
NOTE: I f a moto r doe s no t run , revers e powe r an d
ground . I f th e moto r stil l doe s no t run , replac e th e
motor .
3. Tes t th e senso r b y connectin g powe r an d groun d t o
th e motor , an d connec t a n analo g ohmmete r tes t
lead s t o th e senso r connector .
Th e needl e i n th e ohmmete r shoul d mov e fro m lef t
to right .
CAUTION : Whe n a moto r stop s running , discon -
nec t powe r immediately .
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Cavity Wire
Test condition

Test: Desired result
Possible cause if result is not obtained

C2

•

C7

C5

•

C6
BRN

•

LT GRN

GRY/RED

•

PNK/BLK
Connect C3 to the C2

terminal, and C7 termi-

nal to the C1 terminal

momentarily.

Connect C3 to the C3

terminal, and C2 termi-

nal to the C1 terminal

momentarily.

Connect C3 to the C5

terminal, and C6 termi-

nal to the C1 terminal

momentarily.

Connect C3 to the C6

terminal, and C5 termi-

nal to the C1 terminal

momentarily.
Check
the
tilt
motor operation:

The steering column should tilt up.

Check
the
tilt
motor operation:

The steering column should tilt

down.

Check the extend-retract motor

operation:

The steering column should

retract.

Check the extend-retract motor

operation:

The steering column should

extend.
• Faulty tilt motor

• An open in the wire

• Faulty tilt motor

• An open in the wire

• Faulty extend-retract motor

• An open in the wire

• Faulty extend-retract motor

• An open in the wire

Reconnect all connectors to the steering column control unit.

Cavity Wire
Test condition
Test: Desired result
Possible cause if result is not obtained

B2

•

B10

B9

•

B10

B1

•

B10
GRY

•

BRN

PNK

*

BRN

BLU

•

BRN
Under all conditions

with all steering

column control unit

connectors connected.

Under all conditions

with all steering

column control unit

connectors connected.

Under all conditions

with all steering

column control unit

connectors connected.
Check for voltage between the

B2 and B10 terminals:

There should be 5 V.

Check for voltage between the

B9 and B10 terminals:

There should be about 2.5 V or

more with the steering column in

the fully-extended position, and

about 2.5 V or less in the

fully-retracted position.

Check for voltage between the

B1 and B10 terminals:

There should be about 2.5 V or

more with the steering column in

the fully-up position, and about 2.5

V or less in the fully-down posi-

tion.
• Faulty steering column position

sensors

• An open in the wire

• Faulty steering column position

sensors

• An open in the wire

• Faulty steering column position

sensors

• An open in the wireProCarManuals.com