1997 ACURA NSX Service Repair Manual

Troubleshooting Procedure s
Checking th e Diagnosti c Troubl e Cod e (DTC )
wit h a n OB D II Sca n Too l o r th e Hond a PG M Teste r
When th e TC M sense s a n abnormalit y i n th e inpu t o r outpu t systems , th e indicato r ligh t i n th e gaug e assembl y wil l
blink . Whe n th e 16 P Dat a Lin k Connecto r (DLC ) (locate d t o th e lowe r lef t o f th e glov e compartment ) i s connecte d t o th e
OB D II Sca n Too l o r Hond a PG M Teste r a s shown , th e sca n too l o r teste r wil l indicat e th e Diagnosti c Troubl e Cod e (DTC )
whe n th e ignitio n switc h i s turne d O N (II) .
Whe n th e indicato r ligh t ha s bee n reporte d on , connec t th e OB D II Sca n Too l conformin g t o SA E J197 8 o r Hond a PG M
Teste r t o th e DL C (16P ) a t th e lowe r lef t o f th e glov e compartment . Tur n th e ignitio n switc h O N (II) , an d observ e th e DT C
o n th e scree n o f th e OB D II Sca n Too l o r Hond a PG M Tester . Afte r determinin g th e DTC , refe r t o th e electrica l syste m
Symptom-to-Componen t Char t o n page s 14- 8 an d 14-9 .
NOTE : Se e th e OB D II Sca n Too l o r Hond a PG M Teste r user' s manua l fo r specifi c instructions .
OBD II SCA N TOO L o r
HOND A PG M TESTE R
DATA LIN K CONNECTO R (16P )
Some PGM-F I problem s wil l als o mak e th e indicato r ligh t com e on . Afte r repairin g th e PGM-F I system , disconnec t th e
CLOC K fus e (7. 5 A ) i n th e under-hoo d fuse/rela y bo x fo r mor e tha n 1 0 second s t o rese t th e TC M memory , the n recheck .
NOTE : Disconnectin g th e CLOC K fus e als o cancel s th e radi o prese t station s an d th e cloc k setting . Mak e not e o f th e radi o
preset s befor e removin g th e fus e s o yo u ca n rese t them .
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Checking th e Diagnosti c Troubl e Cod e (DTC )
wit h th e Servic e Chec k Connecto r an d Specia l Too l
Whe n th e TC M sense s a n abnormalit y i n th e inpu t o r outpu t systems , th e indicato r ligh t i n th e gaug e assembl y wil l
blink .
Whe n th e Servic e Chec k Connecto r (2P ) (locate d to th e lowe r righ t o f th e glov e compartment ) i s connecte d wit h th e specia l
tool a s shown , th e indicato r ligh t wil l blin k th e Diagnosti c Troubl e Cod e (DTC ) whe n th e ignitio n switc h i s turne d O N (II) .
Whe n th e indicato r ligh t ha s bee n reporte d on , connec t th e Servic e Chec k Connecto r (2P ) t o th e specia l tool .
Then tur n th e ignitio n switc h O N (II ) an d observ e th e indicato r light .
INDICATO R
LIGH T
SCS SERVIC E CONNECTO R
07PA Z - 001010 0
SERVIC E CHEC KCONNECTO R (2P )
Code s 1 throug h 9 ar e indicate d b y individua l shor t blinks , code s 1 0 throug h 2 0 ar e indicate d b y a serie s o f lon g an d shor t
blinks . On e lon g blin k equal s 1 0 shor t blinks . Ad d th e lon g an d shor t blink s togethe r t o determin e th e code . Afte r deter -
minin g th e code , refe r t o th e electrica l syste m Symptom-to-Componen t Char t o n page s 14-8 an d 14-9 .
Som e PGM-F I problem s wil l als o mak e th e indicato r ligh t com e on . Afte r repairin g th e PGM-F I system , disconnec t th e
CLOC K fus e (7. 5 A ) i n th e under-hoo d fuse/rela y bo x fo r mor e tha n 1 0 second s t o rese t th e TC M memory , the n recheck .
NOTE : Disconnectin g th e CLOC K fus e als o cancel s th e radi o prese t station s an d th e cloc k setting .
Mak e not e o f th e radi o preset s befor e removin g th e fus e s o yo u ca n rese t them .
GAUG E ASSEMBL Y
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Troubleshooting Procedure s
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 in th e SR S
sectio n 24 befor e performin g repair s o r service .
1 . Remov e th e sea t bac k panel s (se e sectio n 20 ).
2 . Remov e th e connecto r holde r fro m th e TC S contro l unit , an d disconnec t th e antenn a lead .
3 . Remov e th e TC S contro l unit .
NOTE : D o no t disconnec t th e connector s fro m th e TC S contro l unit .
TCS CONTRO L UNI T
ANTENN A LEA D6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
CONNECTO R HOLDE R
4. Disconnec t th e B (22P ) connecto r fro m th e TCM , the n remov e th e TCM .
NOTE : D o no t disconnec t th e A (26P ) connecto r fro m th e TC M whil e removin g th e TCM .
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
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5. Inspec t th e circui t o n th e TC M accordin g t o th e troubleshootin g flowchar t wit h th e specia l tool s an d a digita l multime -
te r a s shown .
Ho w to us e th e Backprob e Se t
Connec t th e backprob e adapter s t o th e stackin g patc h cords , an d connec t th e cord s t o a multimeter . Usin g th e wir e
insulatio n a s a guid e fo r th e contoure d ti p o f th e backprob e adapter , gentl y slid e th e ti p int o th e connecto r fro m th e
wire sid e unti l i t come s in contac t wit h th e termina l en d o f th e wire .
DIGITA L MULTIMETE R(Commerciall y available )KS-AHM-32-003 .or equivalen t
TCM
BACKPROB E ADAPTE R
BACKPROB E SE T07SA Z-001000 A(Two required )
STACKIN G PATC H COR D
TCM Rese t Procedur e
1. Tur n th e ignitio n switc h OFF .
2. Remov e th e No . 3 3 CLOC K fus e (7. 5 A ) fro m th e under-hoo d fuse/rela y bo x fo r 1 0 second s t o rese t th e TCM .
NOTE :
• Disconnectin g th e No . 3 3 CLOC K fus e als o cancel s th e radi o prese t station s an d cloc k setting . Mak e not e o f th e
radi o preset s befor e removin g th e fus e s o yo u ca n rese t them .
• Th e TC M memor y canno t b e cleare d b y usin g th e OB D II sca n Too l o r Hond a PG M Tester ; b e sur e t o remov e th e
CLOC K fus e to rese t th e TCM .
CLOC K (7. 5 A )FUS E
UNDER-HOO DFUSE/RELAY BO X
Fina l Procedur e
NOTE : Thi s procedur e mus t b e don e afte r an y troubleshooting .
1. Tur n th e ignitio n switc h OFF .
2. Rese t th e TCM .
3. Disconnec t th e OB D II Sca n Too l o r Hond a PG M Teste r fro m th e Dat a Lin k Connector , o r remov e th e specia l too l fro m
th e Servic e Chec k Connector .
4 . Tur n th e ignitio n switc h O N (II) , an d se t th e radi o preset s an d cloc k setting .
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Symptom-to-Component Char t
Electrica l Syste m
14-10
14-1 2
14-60
14-6 1
14-62
14-6 4
14-1 4
14-16
14-7 0
14-71
14-7 2
(DTC)* : Th e DTC s i n th e parenthese s ar e th e number s th e indicato r ligh t indicate s whe n th e servic e chec k connecto r i s
connecte d to th e specia l too l (SC S servic e connector) .
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(DTC)*: The DTC s in th e parenthese s ar e th e number s th e indicato r ligh t indicate s whe n th e servic e chec k connecto r i s
connecte d to th e specia l too l (SC S servic e connector) .
If th e self-diagnosti c indicato r ligh t doe s no t blink , perfor m an inspectio n accordin g to th e tabl e below .
NOTE:
• I f a custome r describe s th e sympto m fo r cod e P179 0 (3) , ye t th e indicato r ligh t i s no t blinking , P170 6 (6) , o r P072 5
(11), i t wil l b e necessar y to recreat e th e sympto m by test-driving , the n recheckin g th e DTC .
• Sometime s th e indicato r ligh t an d th e Malfunctio n Indicato r Lam p (MIL ) ma y com e o n simultaneously . I f so , chec k
th e PGM-F I syste m accordin g t o th e DTC , the n rese t th e memor y b y removin g th e CLOC K fus e i n th e under-das h
fuse/rela y bo x fo r mor e tha n 1 0 seconds . Driv e th e vehicl e fo r severa l minute s a t a spee d ove r 3 0 mp h (5 0 km/h) , the n
rechec k th e DTC .
14-73
14-7 4
14-18
14-7 7
14-79
14-19
14-2 0
14-84
14-8 6
14-87
14-8 8
14-8 9
14-91
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Lock-up Contro l Solenoi d Valv e A/ B
Replacemen t
1. Disconnec t th e 2 P connecto r fro m th e lock-u p con -
tro l solenoi d valv e assembly .
2 . Measur e th e resistanc e betwee n th e No . 2 termina l
(solenoid valv e A ) o f th e lock-u p contro l solenoi d
valve connecto r an d bod y ground , an d betwee n th e
No . 1 termina l (solenoi d valv e B ) an d bod y ground .
LOCK-U P CONTRO L
SOLENOI D VALV E
ASSEMBL Y
TERMINAL SID E O FMAL E TERMINAL S
3. Replac e th e lock-u p contro l solenoi d valv e assem -
bl y if th e resistanc e is ou t o f specification .
4 . I f th e resistanc e i s withi n th e standard , connec t th e
No . 1 termina l o f th e lock-u p contro l solenoi d valv e
connecto r t o th e batter y positiv e terminal . A clickin g
soun d shoul d b e heard . Connec t th e No . 2 termina l t o
th e batter y positiv e terminal . A clickin g soun d shoul d
b e heard . Replac e th e lock-u p contro l solenoi d valv e
assembl y if n o clickin g soun d is heard . NOTE
: Lock-u p contro l solenoi d valve s A an d B mus t b e
removed/replace d a s a n assembly .
1 . Remov e th e mountin g bolt s an d lock-u p contro l
solenoi d valv e assembly .
Clean mountin g surfac e
an d flui d passages . LOCK-U
P CONTRO L
SOLENOI D VALV E
ASSEMBL Y
FILTER/GASKE TReplace.
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
2. Clea n th e mountin g surfac e an d flui d passages ,
the n instal l a ne w lock-u p contro l solenoi d valv e
assembl y wit h a ne w filter/gasket .
3 . Chec k th e connecto r fo r rust , dirt , o r oi l the n recon -
nec t i t securely .
Test
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Shift Contro l Solenoi d Valv e A/ B
Tes t
1. Disconnec t th e 2 P connecto r fro m th e shif t contro l
solenoi d valv e assembly .
2 . Measur e th e resistanc e betwee n th e No . 1 termina l
(solenoi d valv e A ) o f th e shif t contro l solenoi d valv e
connecto r an d bod y ground , an d betwee n th e No . 2
termina l (solenoi d valv e B ) an d bod y ground .
SHIFT CONTRO L
SOLENOI D VALV E
ASSEMBL Y
TERMINAL SID E O F
MAL E TERMINAL S
3. Replac e th e shif t contro l solenoi d valv e assembl y if
th e resistanc e is ou t o f specification .
4 . I f th e resistanc e is withi n standard , connec t th e No .
1 termina l o f th e shif t contro l solenoi d valv e con -
necto r t o th e batter y positiv e terminal . A clickin g
soun d shoul d b e heard . Connec t th e No . 2 termina l
t o th e batter y positiv e terminal . A clickin g soun d
shoul d b e heard . Replac e th e shif t contro l solenoi d
valv e assembl y if n o clickin g soun d is heard .
Replacemen t
NOTE: Shif t contro l solenoi d valve s A an d B mus t b e
removed/replace d a s a n assembly .
1 . Remov e th e mountin g bolt s an d shif t contro l sole -
noi d valv e assembly .
SHIFT CONTRO L
SOLENOI D VALV E
ASSEMBL Y
FILTER/GASKE T
Replace .Clean mountin gsurface an d flui dpassages .
6 x 1. 0 m m12 N- m11. 2 kgf-m , 8. 7 Ibf-ft )
2. Clea n th e mountin g surfac e an d flui d passages ,
the n instal l a ne w shif t contro l solenoi d valv e
assembl y wit h a ne w filter/gasket .
3 . Chec k th e connecto r fo r rust , dirt , o r oil , the n recon -
nec t i t securely .
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