ACURA RL KA9 1996 Service Repair Manual

Control Uni t Inpu t Tes t
1. Remov e th e righ t rea r pilla r tri m (se e sectio n 20 ).
2 . Disconnec t th e moonroo f harnes s 3 P connecto r fro m
th e righ t sid e wir e harness .
3 . Mak e th e followin g inpu t test s a t th e righ t sid e wir e
harnes s 3 P connector .
• I f an y tes t indicate s a problem , fin d an d correc t
th e cause , the n rechec k th e system .
• I f al l th e inpu t test s prov e OK , g o to ste p 4 .
3P CONNECTO R
Wire sid e o ffemal e terminal s
RIGHT SID E WIR EHARNES S
Cavity Wir e Test conditio n Test: Desire d result s Possible caus e if resul t i s no t obtaine d
BLU
RE D
YEL/GRN*1
YEL*2Ignitio n switc h O N (II )
Ignitio n switc h O N (II )
Ignitio n switc h O N (II )
Ignitio n 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 voltag e to ground :
Ther e shoul d b e batter y voltage .
Attac
h t o ground :
Th e moonroo f moto r shoul d ru n
(open) .
Attach to ground :
The moonroo f moto r shoul d ru n
(close) .
• Blow n No . 5 1 (3 0 A ) fus e in th e
under-hoo d fuse/rela y bo x
• Blow n No . 2 3 (1 0 A ) o r No . 1 3 (7. 5 A )
fus e in th e under-das h fuse/rela y
box
• Fault y moonroo f ope n rela y
• Fault y moonroo f clos e rela y
• Fault y moonroo f moto r
• Poo r groun d (G602 )
• A n ope n in th e wir e
• Blow n No . 2 3 (1 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 . 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
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Control Uni t Inpu t Tes t (cont'd )
4. Connec t th e moonroo f 3 P connecto r t o th e righ t
sid e wir e harness .
5 . Disconnec t th e 10 P connecto r fro m th e contro l unit .
6 . Mak e th e followin g inpu t test s a t th e 10 P connector .
• I f an y tes t indicate s a problem , fin d an d correc t
th e cause , the n rechec k th e system .
• I f 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 .
Moonroo f
10P CONNECTO R
MOONROOF CONTRO L UNI T
Possibl e caus e if resul t i s no t obtaine d
Test : Desire d resul t
Tes
t conditio n
Wir eCavit y
Wire sid e o f femal e terminal s
BLU
GR N
BLK
YEL/BL U
Under al l condition s
Ignition switc h O N (II )
Unde r al l condition s
Ignition switc h O N (II )
Ope n switc h O N
(pressed) ,
ignition switc h OFF .
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 wit h th e limi t switc h 4 ON .
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 wit h th e limi t switc h 2 ON .
Chec k fo r voltag e t o ground :
Ther e shoul d b e les s tha n 2 V
wit h th e limi t switc h 3 ON .
• Poo r groun d
• Fault y moonroo f switc h
• A n ope n in th e wir e
•
Fault y limi t switc h 4
• A n ope n in th e wir e
•
Poo r groun d
• A n ope n in th e wir e
• Fault y limi t switc h 2
• A n ope n in th e wir e
•
Fault y limi t switc h 3
• A n ope n in th e wir e
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YEL/RED
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained

Ignition switch ON (II)

Close switch ON

Open switch (manual)

ON

RED/WHT

YEL
Auto open switch ON

Ignition switch ON (II)

YEL/GRN

or YEL

NOTE: The limit switches are switched in the moonroof positions as shown below:
Check for voltage to ground:

There should be battery voltage

with the limit switch 1 ON.

Check for voltage to ground:

There should be less than 2 V.

Check for voltage to ground:

There should be less than 2 V

with the limit switch 1 OFF,

and the limit switch 4 ON.

Check for voltage to ground:

There should be less than 3 V.

Check for voltage to ground:

There should be battery voltage.
• Faulty limit switch 1

• An open in the wire

• Poor ground

• Faulty moonroof switch

• An open in the wire

• Poor ground

• Faulty limit switch 1

• Faulty limit switch 4

• Faulty moonroof switch

• An open in the wire

• Poor ground

• Faulty moonroof switch

• An open in the wire

• An open in the wire

Tilt up Fully-closed Auto stop Fully-open

The moonroof stops automatically only when moving from open to closed when the limit switch 3 is turned ON.
Limit

switch 1

Limit

switch 2

Limit

switch 3

Limit

switch 4
ON

OFF

ON

OFF

ON

OFF

ON

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Moonroof
Motor Tes t
1. Remov e th e righ t rea r pilla r tri m (se e sectio n 20 ).
2 . Disconnec t th e moonroo f harnes s 2 P connecto r
fro m th e righ t sid e wir e harness .
Terminal sid e o f
mal e terminal s
2P CONNECTO R
4. Carefull y remov e th e headline r (se e sectio n 20 ).
5 . Disconnec t th e 2 P connecto r fro m th e moonroo f
motor .
MOONROO F MOTO R 2 P CONNECTO R
Termina l sid e o f
mal e terminal s
6. Tes t th e moto r b y connectin g powe r an d groun d
accordin g to th e table .
• I f th e moto r run s smoothly , repai r th e moonroo f
wir e harness .
• I f th e moto r fail s t o ru n o r doe s no t ru n smoothly ,
replac e th e moto r (se e sectio n 20 ).
NOTE : Se e closin g forc e chec k i n sectio n 2 0 fo r
moto r clutc h test .
If th e moto r fail s t o ru n o r doe s no t ru n smoothly ,
g o to ste p 4 .
3
. Tes t th e moto r b y connectin g powe r an d groun d
accordin g to th e table .
RIGH T SID E
WIR E HARNES S
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Switch Tes t
1. Carefull y pr y th e switc h out , an d disconnec t th e 5 P
connecto r fro m th e switch .
5P CONNECTO R
2. 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 .
Termina l sid e o fmal e terminal s
MOONROO
F
SWITC H
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Description
Two heater s ar e provide d i n eac h fron t seat ; on e i n th e sea t cushio n an d anothe r i n th e seat-back . I n norma l use ,
temperatur e i s automaticall y controlle d b y th e thermosta t [OF F abov e 122° F (50°C) ] buil t int o eac h sea t cushio n heater . A
breake r [OF F 109° F (43°C) ] cut s of f th e circui t t o preven t abnorma l temperatur e rise .
SEA T HEATE RRELAY*2
Test, pag e 23-6 9
UNDER-HOOD RELA Y BO X C
SEA
T HEATE R RELAY*
3
Test , pag e 23-67
DRIVER'
S SEA T HEATE R SWITC H
Test/Replacement , pag e 23-17 6
DRIVER'
S SEA T CUSHIO N
HEATERTest, pag e 23-17 6
DRIVER'
S SEA T
BAC K HEATE R
Test , pag e 23-17 6
FRON
T PASSENGER' S SEA T HEATE R
SWITCHTest/Replacement , pag e 23-17 6
FRON
T PASSENGER' S
SEAT CUSHIO N HEATER*4
Test , pag e 23-17 6
FRON T PASSENGER' S
SEA T CUSHIO N HEATE R
Test , pag e 23-17 6
UNDER-HOO
D
RELA Y BO X B
SEA
T HEATE R RELAY*
1
Test , pag e 23-67
*1 : '9 6 -9 7 model s*2: '9 8 mode l*3:'99-0 1 model s*4: '9 6 - 9 8 model s
Componen t Locatio n Inde x
Seat Heater s
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Seat Heater s
Switch Test/Replacement
1. Remov e th e A/T gea r positio n indicato r tri m (se e
sectio n 20 ).
2 . Disconnec t th e 6 P connecto r fro m th e switch , an d
remov e th e switc h fro m th e A/ T gea r positio n
indicator trim .
DRIVER' S SEA T
HEATE R SWITC H BULB
S (0.5 6 W x 3)
6 P CONNECTO R
FRON T PASSENGER' S
SEA T HEATE R 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 .
2. Chec k fo r continuit y betwee n th e No . 1 an d No . 4
terminals , an d No . 3 an d No . 4 terminals .
There shoul d b e continuity .
Heater Tes t
1. Carefull y remov e th e driver' s an d fron t passenger' s
sea t (se e sectio n 20 ).
Driver' s seat :
Fron t passenger' s seat :
Termina l sid e o f
mal e terminal s
Termina l sid e o f
mal e terminal s
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Automatic Insid e Dimmin g Mirro r
Componen t Locatio n Inde x
AUTOMATI C INSID E DIMMIN G MIRRO R
Test , pag e 23-17 8
Replacement , pag e 23-17 8
AUTOMATI C INSID E DIMMIN G MIRRO R SWITC H
Descriptio n
The automati c dimmin g ha s a front-facin g lu x leve l sensor , a rear-facin g lu x leve l sensor , an d a contro l unit . Th e contro l
uni t receive s signal s fro m eac h sensor . Base d o n th e differenc e betwee n th e tw o lu x level s (th e ligh t outsid e th e vehicl e an d
th e ligh t fro m th e headlight s o f th e othe r vehicle , etc.) , th e contro l uni t control s th e elector-chromi c ge l t o reduc e th e glare .
Thi s dimmin g functio n is cancele d whe n th e transmissio n is in reverse , o r whe n th e automati c insid e dimmin g mirro r switc h
i s turne d OFF .
BACKWAR D LU XLEVE L SENSO R
SWITC H
FORWAR D LU XLEVE L SENSO R
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Automatic Insid e Dimmin g Mirro r
Test/Replacemen t
NOTE: Befor e testing , chec k th e No . 1 3 (7. 5 A ) fuse .
1 . Remov e th e fron t ceilin g ligh t (se e pag e 23-262 ).
2 . Disconnec t th e 3 P connecto r fro m th e mirror .
Wire sid e o ffemal e terminal s
3P CONNECTO R
3. Chec k fo r voltag e betwee n th e No . 3 termina l an d
bod y groun d wit h th e ignitio n switc h O N (II) .
• I f ther e is batter y voltage , g o t o ste p 4 .
• I f ther e is n o voltage , chec k for :
a n ope n in th e wire , o r
poo r groun d (G401 , G402) .
4 . Chec k fo r voltag e betwee n th e No . 2 termina l an d
bod y groun d wit h th e ignitio n switc h O N (II ) an d
A/T gea r positio n in
• I f ther e i s batter y voltage , replac e th e mirro r b y
removin g thre e screws .
• I f ther e is n o voltage , chec k for :
a n ope n in th e wire , o r
fault y revers e relay , o r
fault y transmissio n rang e switch , o r
fault y diode .
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Front Passenger' s Powe r Sea t
Componen t Locatio n Inde x
FRON T PASSENGER' S SEA T
RECLIN E MOTO R
Test , pag e 23-18 1
Replacement , sectio n 2 0
SLIDE MOTO R
Test , pag e 23-18 1
Replacement , sectio n 2 0
SLID E SWITC H
ADJUSTMEN TSWITCH
Test/Replacement , pag e 23-18 1
RECLIN
E SWITC H
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