1996 ACURA RL KA9 Service Repair Manual

Ignition Syste m
Componen t Locatio n Inde x
IGNITIO N COIL STest, pag e 4-2 1
SPAR K PLUG S
Inspection , pag e 4-2 2
NOIS E CONDENSE R
Test , pag e 4-1 9
IGNITION CONTRO L MODUL E (ICM )
Input Test , pag e 4-2 0
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Ignition Syste m
Ignition Timin g Inspectio n
SRS component s ar e locate d in thi s area . Revie w th e SR S
componen t locations , precautions , an d procedure s i n th e
SR S (sectio n 24 ) befor e performin g repair s o r service .
1 . Star t th e engine . Hol d th e engin e a t 3,00 0 rp m wit h
no loa d (shif t leve r i n o r position ) unti l th e
radiato r fa n come s on , the n le t i t idle .
2 . Pul l ou t th e servic e chec k connecto r locate d unde r
th e glov e box . Connec t th e GRN/BL K an d RE D wir e
terminal s wit h th e specia l tool .
SERVIC E CHEC K CONNECTO R (2P )
NOTE : Locate d unde r th e glov e bo x
SC S SERVIC E CONNECTO R
(07PAZ-0010100 )
3. Chec k th e idl e spee d (se e pag e 4-19 ).
4 . Remov e th e engin e cove r (se e sectio n 5 ).
5 . Connec t a timin g ligh t t o th e No . 1 ignitio n coi l wires ;
while th e engin e idles , poin t th e timin g ligh t towar d
the pointe r o n th e timin g bel t cover .
No. 1 IGNITIO NCOIL WIRE S
TIMING LIGH T
CRANKSHAF T PULLE Y
6. Inspec t ignitio n timin g a t idl e speed .
Ignitio n Timing :
1 5 ± 2° BTD C (RED ) a t 65 0 ± 5 0 rp m wit h shif t leve r
in o r positio n an d electrica l system s turne d
off.
WHIT E MAR K
POINTER
CRANKSHAF T PULLE Y
RED MAR K
7. I f th e ignitio n timin g i s incorrect , replac e th e PC M
(ther e i s n o wa y t o adjus t ignitio n timing) .
8 . Disconnec t th e specia l too l fro m th e servic e chec k
connecto r (2P) .
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Idle Spee d Chec k
1. Star t th e engine . Hol d th e engin e a t 3,00 0 rp m wit h
no loa d (shif t leve r i n o r ) unti l th e radiato r fa n
come s on , the n le t i t idle .
2 . Connec t a tachomete r t o th e tes t tachomete r connec -
tor.
TES T TACHOMETE R CONNECTO R
BATTERY
Idle speed : 65 0 ± 50 rp m wit h shif t leve r i n positio n
or an d electrica l system s turne d off .
3 . Adjus t th e idl e spee d if necessar y (se e sectio n 11 ).
Nois e Condense r Capacit y Tes t
1. Us e a commerciall y availabl e condense r tester . Con -
nec t th e condense r teste r probes , an d measur e th e
condense r capacity .
Condense r capacity : 0.4 7 ± 0.0 9 microfarad s ( F )
POSITIV E TERMINA L
BOD Y GROUN D
(Negative )
NOTE: Th e nois e condense r i s intende d t o reduc e
ignitio n noise . However , condense r failur e ma y caus e
th e engin e t o sto p running .
2 . I f no t withi n th e specifications , replac e th e nois e con -
denser .CLIP
TACHOMETE R
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Ignition Syste m
Ignition Contro l Modul e (ICM ) Inpu t Tes t
NOTE : Se e sectio n 1 1 i f th e malfunctio n indicator lamp (MIL ) blinks . Disconnec t th e 8 P connecto r fro m th e ignitio n contro l
modul e (ICM) . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
I f an y terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
— If an y tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , th e IC M mus t b e faulty ; replac e it .
Wir e sid e o ffemal e terminal s
ICM
8P CONNECTO R
TrmlWire Tes
t conditio n Test: Desire d resul t Possibl
e caus e if resul t i s no t obtaine d
2
7
4
3
1
8
6
5
BLK3
BLK4
WHT1
WHT/GR N
WHT/BLK
WHT/BLU
RED/GR N
WHT/RED
Under al l
condition s
Ignitio n switc h O N
(ID
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 . •
Poo r groun d (G151 )
• A n ope n in th e wir e
• Blow n 3 0 A fus e in th e under-das h
fuse/rela y bo x
• Fault y ignitio n coi l
• A n ope n i n th e wir e
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