1996 ACURA RL KA9 Service Repair Manual

PGM-FI Syste m
Manifol d Absolut e Pressur e (MAP ) Senso r (cont'd )
(From pag e 11-69 ) (Fro
m pag e 11-69 )
Chec k fo r poo r response :
1 . Star t th e engine . Hol d th e
engin e a t 3,00 0 rp m wit h trans -
missio n i n Par k o r neutra l unti l
th e radiato r fa n come s on , the n
sto p th e engine .
2 . Star t th e engine .
3 . Chec k th e MA P wit h th e sca n
tool.
Is a MA P o f 40. 0 kP a (30 0 mmHg ,
12. 0 in.Hg ) o r les s indicate d withi n
1 secon d afte r startin g th e engine ? Replac
e th e MA P sensor .
Replac e th e MA P sensor . Chec
k fo r poo r response :
1 . Star t th e engine . Hol d th e
engin e a t 3,00 0 rp m wit h trans -
missio n i n Par k o r neutra l unti l
th e radiato r fa n come s on , the n
sto p th e engine .
2 . Star t th e engine .
3 . Chec k th e MA P wit h th e sca n
tool.
Is a MA P of 40. 0 kP a (30 0 mmHg ,12.0 in.Hg ) o r les s indicate d withi n
1 secon d afte r startin g th e engine ?
YES
Substitut e a known-goo d PC Mand rechec k (se e pag e 11-42 fo r
immobilize r information) . I f
symptom/indicatio n goe s away ,
replac e th e origina l PCM .
Th
e MA P senso r i s O K a t thi s time .
YES
NO
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The sca n too l indicates Diagnosti c Troubl e Cod e (DTC ) P0107 : A lo w voltag e (hig h vacuum ) proble m in th e
Manifol d Absolut e Pressur e (MAP) sensor .
— Th e MI L ha s bee n reporte d on .
— DT C P010 7 is stored .
Proble m verification :
1 . Tur n th e ignitio n switc h O N (II) .
2 . Chec k th e MA P wit h th e sca n
tool .
I s approx . 0 kP a ( 0 mmHg , 0 in.Hg )
indicated ?
YES
Chec k fo r a n ope n o r shor t i n th e
MA P sensor :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e MA P senso r
connector .
3 . Tur n th e ignitio n switc h O N (II) .
4 . Chec k th e MA P wit h th e sca n
tool.
Is approx . 0 kP a ( 0 mmHg , 0 in.Hg )indicated ?
YES
Chec k fo r a n ope n in wir e (VCC 1line):Measur e voltag e betwee n th e
MA P senso r connecto r No . 1 ter -
mina l an d No . 2 terminal .
I s ther e abou t 5 V ?
YE S
Chec k fo r a shor t i n th e wir e
(MA P line) :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e PC M connec -
tor D (22P) .3. Chec k fo r continuit y betwee n
MA P senso r connecto r No . 3 ter -
mina l an d bod y ground .
I s ther e continuity ?
NO
Substitut e a known-goo d PC M
an d rechec k (se e pag e 11-42 fo r
immobilize r information) . I f nor -
ma l MA P is indicated , replac e th e
origina l PCM . Intermitten
t failure , syste m is O K
a t thi s time . Chec k fo r poo r con -
nection s o r loos e wire s a t C252 ,
C25 4 (locate d a t lef t shoc k tower) ,
C111 (MA P sensor ) an d PCM .
Replac e th e MA P sensor .MAP SENSO R 3 P CONNECTO R (C111 )
Repair ope n i n th e wir e betwee nPCM (D10 ) an d MA P sensor .Wire sid e o f femal e terminal s
Repai r shor t i n th e wir e betwee n
PCM (D9 ) an d MA P sensor .
NO
N
O
N
O
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PGM-FI System
Manifol d Absolut e Pressur e (MAP ) Senso r (cont'd )
The sca n too l indicate s Diagnosti c Troubl e Cod e (DTC ) P0108 : A hig h voltag e (lo w vacuum ) proble m in th e
Manifol d Absolut e Pressur e (MAP ) sensor .
— Th e MI L ha s bee n reporte d on .
— DT C P010 8 is stored .
Proble m verification :
1 . Star t th e engine . Hol d th e
engin e a t 3,00 0 rp m wit h n o
loa d i n Par k o r neutra l unti l
th e radiato r fa n come s on , the n
let i t idle .2. Chec k th e MA P wit h th e sca ntool.
Chec k fo r a n ope n i n th e MA Psensor :1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e MA P senso r
3 P connector .
3 . Instal l a junipe r wir e betwee n
th e MA P senso r 3 P connecto r
terminal s No . 3 an d No . 2 .
4 . Tur n th e ignitio n switc h O N (II) .
5 . Chec k th e MA P wit h th e sca n
tool.
Is 10 1 kP a (76 0 mmHg , 30. 0 in.Hg )
o r highe r indicated ?
Chec k fo r a n ope n in wir e (SG 1
line):1. Remov e the jumpe r wire.
2 . Measur e voltag e betwee n th e
MA P senso r 3 P connecto r ter -
minal s No . 1 an d No . 2 .
I s ther e abou t 5 V ?
Chec k fo r a n ope n i n th e wir e
(MA P line) :
1. Tur n th e ignitio n switc h OFF .2. Instal l a jumpe r wir e o n th ePC M connector s betwee n D 9and D11.3. Tur n th e ignitio n switc h O N (II) .4. Chec k th e MA P wit h th e sca ntool.
/ Is 10 1 kP a (76 0 mmHg , 30. 0 in.Hg )\ or highe r indicated ?
Substitut e a known-goo d PC M
an d
rechec k (see pag e 11-42 for
immobilize r information) . I f nor -
ma l MA P is indicated , replac e th e
origina l PCM .
Intermitten t failure, system is O Kat thi s time . Chec k fo r poo r con -
nection s o r loos e wire s a t C252 ,
C254 (locate d a t lef t shoc k tower) ,C111 (MA P sensor ) an d PCM .
MAP SENSO R 3 P CONNECTO R (C111)
SG1(GRN/WHT )MAP(RED/GRN )
JUMPER WIR E
Wire sid e o f femal e terminal s
Replac e th e MA P sensor .
VCC1(YEL/RED )
Repair ope n in th e wir e betwee nPCM (D11) an d MA P sensor .
SG1(GRN/WHT )
Wire sid e o f femal e terminal s
Repai r ope n in th e wire s betwee n
PCM (D9 ) an d MA P sensor .
Is 10 1 kP a (76 0 mmHg , 30.0 in.Hg )
o r highe r indicated ?
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