1996 ACURA RL KA9 Service Repair Manual

Electrical Troubleshootin g
Troubleshooting Flowchar t — Shif t Contro l Syste m
• OB D II Sca n Too l indicate s Cod eP0730 .• Self-diagnosi s indicato r
ligh t indicate s Cod e 41 .
Chec k fo r Anothe r Code :
Chec k whethe r th e OB D I I sca n
tool o r th e indicato r ligh tindicate s anothe r code .
Doe s th e OB D II sca n too l o r th e
indicato r ligh t indicat e anothe rcode?
Test 1st , 2nd , 3rd , an d 4t h Clutc h
Pressure :
Measur e th e 1st , 2nd , 3rd , an d
4t h clutc h pressur e (se e pag e
14-10 9 thr u 14-111 ).
I s eac h clutc h pressur e within
th e servic e limit ?
Replac e th e Shif t Solenoi d Valve s
A an d B an d th e A/ T Clutc hPressur e Contro l Solenoi d Valve ,
the n Recheck :
1 . Replac e th e shif t solenoi d
valve s A an d B (se e pag e
14-115 ).2 . Replac e th e A/ T clutc h pres -
sur e contro l solenoi d valv e
(se e pag e 14-114 ).
3 . Tur n th e ignitio n switc h OF Fand rese t th e PC M memor y
b y removin g th e BAC K UP ,
RADI O fus e i n th e under-hoo d
fuse/rela y bo x fo r mor e tha n
1 0 seconds .
4. Driv e th e vehicl e a t ove r 1 2mp h (2 0 km/h ) in 1st , 2nd , 3rdand 4t h gea r fo r mor e tha n 3 0second s in position .
5 . Rechec k fo r cod e P073 0 (41) .
Doe s th e OB D II sca n too l o r th e
indicato r ligh t indicat e cod e
P073 0 (41) ? Possibl
e Caus e
Fault y shif t contro l syste m
Perfor m th e Troubleshootin g
Flowchar t fo r th e indicate d
Code(s) . Rechec k fo r cod e P073 0
(41 ) afte r troubleshooting .
NOTE : D o no t continu e wit h thi s trou -
bleshootin g unti l th e cause s o f an y
othe r DTC s hav e bee n corrected .
Repai r th e hydrauli c syste m a s
necessar y (se e pag e 14-11 0 an d
14-111 ).
Th e syste m is O K a t thi s time .
Replac e th e transmission .
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Troubleshooting Flowchar t — Indicato r Ligh t Doe s No t Com e O n
Is th e specia l too l (SC S Servic e
Connector ) connecte d t o th e
servic e chec k connector ?
Check th e Indicato r Light :Shift t o position .
Does th e indicato r ligh t
com e on ?
Chec k th e Groun d Circuit :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e A (26P ) an d B(16P ) connector s fro m th ePCM .3. Chec k fo r continuit y betwee nthe A2 6 termina l an d bod ygroun d an d th e B 9 termina land bod y ground .
Is ther e continuity ?
Measur e Powe r Suppl y Circui t
Voltage :
1 . Tur n th e ignitio n switc h O N (II) .
2 . Measur e th e voltag e betwee n
terminal s A1 3 an d A2 6 an d
betwee n terminal s B 1 an d B9 .
I s ther e batter y voltage ?
T o pag e 14-8 0 Disconnec
t th e specia l too l fro m
th e servic e chec k connecto r an d
recheck .
Check fo r loos e PC M connectors .
I f necessary , substitut e a known -
goo d PC M an d recheck .
PCM CONNECTOR S
Wir e sid e o f femal e terminal s
Repai r ope n i n th e wire s betwee n
th e A2 6 o r B 9 terminal s an d G101 .
Repai r ope n o r shor t i n th e wir e
betwee n th e A1 3 and/o r B 1 termi -
nals , th e PGM-F I mai n relay , an d
th e fus e box .
The indicato r ligh t doe s no t
com e o n whe n th e ignitio n switc h
i s firs t turne d O N (II) . (I t shoul d
com e o n fo r abou t 2 seconds. )
Chec k th e Servic e Chec k Con -
nector :
Mak e sur e th e specia l too l (SC S
Servic e Connector ) i s no t con -
necte d t o th e servic e chec k con -
nector .
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Electrical Troubleshootin g
Troubleshooting Flowchar t — Indicato r Ligh t Doe s No t Com e O n (cont'd )
Measure D 4 IN D Voltage :
1 . Tur n th e ignitio n switc h OFF .
2 . Connec t th e A (26P ) an d
B (16P ) connector s to th e PCM .
3. Connec t a digita l multimete rto th e E2 3 an d A2 6 terminals .4. Tur n th e ignitio n switc h O N (II )an d mak e sur e tha t th e voltag e
i s availabl e fo r 2 seconds .
I s ther e voltage ?
Chec k D 4 IN D fo r a Ope n Circuit :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e E (26P ) con -
necto r fro m th e PCM .
3 . Chec k fo r continuit y betwee n
the E2 3 termina l an d th e B2 7termina l o f th e gaug e assembl yB (30P ) connector .
Is ther e continuity ?
Chec k D 4 IN D fo r a Shor t Circuit :
Chec k fo r continuit y betwee n th e
E2 3 termina l an d bod y ground .
I s ther e continuity ? PC
M CONNECTOR S
Chec k fo r ope n i n th e wir e
betwee n th e E2 3 termina l an d th egaug e assembly . I f wir e i s OK ,chec k fo r a fault y indicato r
ligh t bul b o r a fault y gaug e assem -
bl y printe d circui t board . Wir
e sid e o f femal e terminal s
PC M CONNECTO R E (26P )
GAUG E ASSEMBL Y CONNECTO R B (30P )
Repai r shor t i n th e wir e betwee n
th e E2 3 termina l an d th e gaug e
assembly .
Fro
m pag e 14-7 9
Chec k fo r loos e PC M connectors .
Chec k th e transmissio n rang e
switch . I f necessary , substitut e a
known-goo d PC M an d recheck . Wir
e sid e o f femal e terminal s
Repai
r ope n i n th e wir e betwee n
th e E2 3 termina l an d th e gaug e
assembly .
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