1996 ACURA RL KA9 Service Repair Manual

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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From pag e 23-206
Steerin g Colum n Positio n Senso r
(Extend-retract) :Check 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 fully-extende d positio n
and 2. 5 V or les s wit h th e steerin gcolumn in fully-retracte d 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 extend-retrac t moto r t o
mov e th e steerin g colum n t o th e fully -extende d an d fully-retracte d position s(see pag e 23-226 ).
Ar e voltage s a s specified ? •
Ope n o r shor t i n th e PN K o r BR Nwire s• Fault y extend-retrac t positio nsensor
NO
YE S
NOTE : I f necessary , appl y powe r an d
groun d to th e tilt moto r to mov e thesteerin g colum n t o th e fully-u p an d
fully-dow n position s (se e pag e 23-226 ).
Steerin
g Colum n Positio n Senso r
(Tilt) :
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 fully-u p positio n an d
2. 5 V or les s wit h th e steerin g
column in fully-dow n 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 BL U o r BR Nwire s• Fault y til t positio n senso r
Extend-retrac t Moto r (Extend) :
Chec k fo r voltag e betwee n th e
extend-retrac t moto r 2 P connec -
to r No . 2 termina l an d bod y
ground . Ther e shoul d b e 1 2 V
wit h th e exten d switc h pushe d
an d n o voltag e wit h th e exten d
switch released .
Are voltage s a s specified ? •
Ope n o r shor t i n th e PNK/BL K
wir e
• Fault y exten d switc hNO
YE S
Extend-retrac t Moto r (Retract) :
Chec k fo r voltag e betwee n th e
extend-retrac t moto r 2 P connec -tor No . 1 termina l an d bod y
ground . Ther e shoul d b e 1 2 V
wit h th e retrac t switc h pushe d
an d n o voltag e wit h th e retrac t
switc h released .
Ar e voltage s a s specified ?
NO• Ope n o r shor t i n th e GRY/RE Dwire• Fault y retrac t switc h
T o pag e 23-208YE S(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 R
2P CONNECTO R
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