1996 ACURA RL KA9 Service Repair Manual

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Page 1465 of 1954

ACURA RL KA9 1996 Service Repair Manual Troubleshooting
Compressor (cont'd )
From pag e 22-4 9
Chec k fo r a n ope n in th e wire :
1 . Disconnec t th e jumpe r wire .
2. Disconnec t th e compresso rclutch 1 P connector .
3 . Chec k fo

Page 1466 of 1954

ACURA RL KA9 1996 Service Repair Manual From pag e 22-4 9
Chec k th e PC M (AC C an d AC S
lines) :1. Tur n th e ignitio n switc h OFF ,then reinstal l th e compresso r
clutc h relay .
2 . Disconnec t th e fa n contro l
uni t 12 P connector

Page 1467 of 1954

ACURA RL KA9 1996 Service Repair Manual Troubleshooting
Compressor (cont'd )
From pag e 22-5 1
Chec k fo r a n ope n in th e wire :
1 . Tur n th e ignitio n switc h OFF ,
the n disconnec t th e jumpe r
wire .
2 . Mak e sur e th e A/ C

Page 1468 of 1954

ACURA RL KA9 1996 Service Repair Manual A/C Syste m
Both fan s an d compresso r d o no t
wor k a t all .
Chec k th e No . 3 (7. 5 A ) fus e i n
th e under-das h fuse/rela y box .
I s th e fus e OK ?
Chec k fo r a n ope n in th e wire :
1

A/C Syste m
Both fan s an d compresso r d o no t
wor k a t all .
Chec k th e No . 3 (7. 5 A ) fus e i n
th e under-das h fuse/rela y box .
I s th e fus e OK ?
Chec k fo r a n ope n in th e wire :
1 . Disconnec t th e fa n contro l
uni t 12 P connector .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Measur e th e voltag e betwee n
th e No . 7 termina l an d bod y
ground .
I s ther e batter y voltage ?
Chec k fo r a n ope n in th e wire :
1 . Tur n th e ignitio n switc h OFF .
2 . Chec k fo r continuit y betwee n
th e No . 3 termina l o f th e fa n
contro l uni t an d bod y ground .
I s ther e continuity ?
YES
Chec k fo r a n ope n in th e wire :
1 . Reconnec t th e fa n contro l uni t
12P connector .2. Disconnec t th e A/ C pressur e
switc h 4 P connector .
3 . Tur n th e ignitio n switc h O N (II) .
4 . Measur e th e voltag e betwee n
th e No . 4 termina l an d bod y
ground .
I s ther e batter y voltage ?
Chec k th e fa n contro l unit :
Measur e th e voltag e betwee n th e
No . 4 termina l o f th e fa n contro l
uni t 12 P connecto r an d bod y
groun d wit h th e fa n contro l uni t
12 P connecto r connected .
I s ther e batter y voltage ?
Chec k fo r loos e wire s o r poo r
connection s a t th e fa n contro l
uni t 12 P connector . I f th e con -
nection s ar e good , substitut e a
known-goo d fa n contro l unit ,
an d recheck . I f th e symptom /
indicatio n goe s away , replac e
th e origina l fa n contro l unit . Replac
e th e fuse , an d recheck .
FAN CONTRO L UNI T 12 P CONNECTO R
Repai r ope n i n th e wir e betwee n
th e No . 3 fus e an d th e fa n con -
tro l uni t Wir
e sid e o f femal e terminal s
Chec k fo r a n ope n i n th e wir e
betwee n th e fa n contro l uni t an d
bod y ground . I f th e wir e i s OK ,
chec k fo r poo r groun d a t G40 1
an d G402 .
A/C PRESSUR E SWITC H 4P CONNECTO R
T o pag e 22-5 4
Wire sid e o f femal e terminal s
Repai r ope n i n th e wir e betwee n
th e A/ C pressur e switc h an d th e
fa n contro l unit .
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Page 1469 of 1954

ACURA RL KA9 1996 Service Repair Manual Troubleshooting
A/C Syste m (cont'd )
From pag e 22-5 3
Chec k th e A/ C pressur e switch :
1 . Tur n th e ignitio n switc h OFF .
2 . Chec k fo r continuit y betwee n
th e No . 1 an d No . 4 te

Troubleshooting
A/C Syste m (cont'd )
From pag e 22-5 3
Chec k th e A/ C pressur e switch :
1 . Tur n th e ignitio n switc h OFF .
2 . Chec k fo r continuit y betwee n
th e No . 1 an d No . 4 terminal s
o f th e A/ C pressur e switch .
I s ther e continuity ?
Chec k fo r a n ope n in th e wire :
1 . Reconnec t th e A/ C pressur e
switc h 4 P connector .
2 . Remov e th e climat e contro l
uni t (se e pag e 22-55 ), an d dis -
connec t th e 8 P an d 20 P con -
nectors .
3 . Tur n th e ignitio n switc h O N (II) .
4 . Measur e th e voltag e betwee n
the No . 1 2 termina l o f th e 20 Pconnecto r an d bod y ground .
I s ther e batter y voltage ?
Chec k fo r a n ope n in th e wire :
Measur e th e voltag e betwee n th e
No . 1 termina l o f th e climat e con -
tro l uni t 8 P connecto r an d bod y
ground .
Is ther e batter y voltage ?
Chec k fo r a n ope n in th e wire :
1 . Tur n th e ignitio n switc h OFF .
2 . Chec k fo r continuit y betwee n
th e No . 7 termina l o f th e cli -
mat e control unit 8 P connec -
to r an d bod y groun d
I s ther e continuity ?
Chec k fo r loos e wire s o r poo r con -
nection s a t th e climat e contro l
uni t 8 P an d 20 P connectors . I f th e
connection s ar e good , substitut e a
known-goo d climat e contro l unit ,
an d recheck . I f th e symptom/indi -
catio n goe s away , replac e th e
origina l climat e contro l unit .
A/C PRESSUR E SWITC H
Is th e pressur e withi n specifi -cations?Repair th e A/ C pressur e prob -lem.
CLIMAT E CONTRO L UNI T 20 P CONNECTO R
Repai r ope n in th e wir e betwee n
th e A/ C pressur e switc h an d th e
climat e contro l unit .
Wire sid e o f femal e terminal s
CLIMAT E CONTRO L UNI T 8 P CONNECTO R
Repai r ope n in th e wir e betwee n
th e No . 3 fus e an d th e climat e
contro l unit .
Wire sid e o f femal e terminal s
Chec k fo r a n ope n i n th e wir e
betwee n th e climat e contro l uni t
an d bod y ground . I f th e wir e i s
OK , chec k fo r poo r groun d a t
G40 1 an d G402 .
Replac
e th e A/ C pressur e switch .
Chec
k fo r A/ C syste m pressure .
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Page 1470 of 1954

ACURA RL KA9 1996 Service Repair Manual Climate Contro l Uni t
Replacemen t Bul b Replacemen t
1. Remov e th e cente r ai r ven t an d cente r consol e tri m
(se e sectio n 20 ).
2 . Remov e th e bolt s an d th e climat e contro l uni t
to

Page 1471 of 1954

ACURA RL KA9 1996 Service Repair Manual Climate Contro l Uni t
Face Panel/Butto n Replacemen t
CAUTION:
Before replacin g fac e pane l o r buttons , discharg e th e
stati c electricit y (whic h accumulate d o n yo u whe n
yo u remove d th e

Page 1472 of 1954

ACURA RL KA9 1996 Service Repair Manual Air Mi x Contro l Moto r
Replacemen tTest
1. Remov e th e glov e bo x (se e sectio n 20 ).
2 . Remov e th e glov e bo x bac k cove r an d th e blowe r
unde r cove r togethe r wit h th e glov e bo x fr

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