1996 ACURA RL KA9 Service Repair Manual

Troubleshooting
DTC 82 : Whee l Spee d Interna l Circui t
Is DT C 8 2 indicated ? Intermitten
t failure ; th e vehicl e is
O K at thi s time .
Proble m verification :1. Clea r th e DTC .2. Test drive the vehicle.3. Verif y th e DTC .
Replac e th e VS A modulator -control unit .
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DTC 83 : VS A Inhibitio n
Is DT C 3 5 o r 3 6 indicated ?
To pag e 19-24 8 whe n th e DT C 3 5is indicated .
T o pag e 19-25 0 whe n th e DT C 3 6
i s indicated .
NOTE : Perfor m th e PGM-F I troubleshootin g whe n a
PGM-F I DT C othe r tha n 3 5 an d 3 6 indicated .
Check th e PC M (T C STB) :1. Tur n th e ignitio n switc h O N (II) .
2 . Measur e th e voltag e betwee n
th e PC M connecto r C (12P ) ter -
mina l No . 1 2 an d bod y ground . PC
M CONNECTO R C (12P )
I s ther e abou t 5 V ?
Replac e th e PCM .Wire sid e o f femal e terminal s
Check th e PC M (T C FC) :Measur e th e voltag e betwee n th e
PC M connecto r C (12P ) termina l
No . 1 0 an d bod y ground .
I s ther e abou t 2. 5 V ?
Replac e th e PCM .
Check fo r loos e terminal s in th e
VS A converte r uni t 26 P connec -
tor . I f necessary , substitut e a
known-goo d VS A converte r unit ,
and recheck .
Check fo r a PGM-F I DT C (se e sectio n 11 ).
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Troubleshooting
DTC 83 : VS A Inhibitio n (cont'd )
(With DT C 35 fro m pag e 19-247 )
Check fo r a shor t t o bod y groun din th e T C ST B circuit :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e PC M connec -
tor C (12P ) and th e VS A con -verte r uni t 26 P connector .
3 . Chec k fo r continuit y betwee n
th e VS A converte r uni t 26 P
connecto r termina l No . 2 4an d bod y ground .
I s ther e continuity ?
Check fo r a shor t t o bod y groun din th e T C F C circuit :
Chec k fo r continuit y betwee n th e
VS A converte r uni t 26 P connecto rterminal No . 2 2 an d bod y ground .
I s ther e continuity ?
Chec k the VSA converte r uni t
(TC STB) :1. Connec t th e VS A converte runit 26 P connecto r an d th ePC M connecto r C (12P) .2. Rais e th e fron t o f th e vehicle ,
an d suppor t i t wit h safet y
stands.3. Star t th e engine .
4 . Measur e th e voltag e betwee n
th e VS A converte r uni t 26 P
connecto r termina l No . 2 4
an d bod y ground .
I s th e voltag e a s specified ?
— VS A is functioning : abou t O V
— VS A is no t functioning : abou t5V
(T o pag e 19-249 )
VSA CONVERTE R UNI T 26 P CONNECTO R
Wire sid e o f femal e terminal s
Repair shor t t o bod y groun d i nth e wir e betwee n th e PC M an d
th e VS A converte r unit .
Repai r shor t t o bod y groun d i nth e wir e betwee n th e PC M an d
th e VS A converte r unit .
Chec k fo r loos e terminal s i n th eVS A converte r uni t 26 P connec -
tor . I f necessary , substitut e a
known-goo d VS A converte r unit ,
and recheck .
NOTE: Sto p th e wheel s b y pressin g th e
brak e peda l lightly .
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(From pag e 19-248 )
Check th e VS A converte r uni t(TC FC) :Measur e th e voltag e betwee n th e
VS A converte r uni t 26 P connecto r
terminal No . 2 2 an d bod y ground .
NOTE: Us e th e 1 0 V rang e o r a simila r
rang e in a n analo g tester .
VSA IS NO T VS A ISFUNCTIONIN G FUNCTIONIN G
VS A CONVERTE R UNI T 26 P CONNECTO R
I s th e voltag e a s specified ?
— VS A is functionin g (maximum) :
abou t 1.5 V
— VS A is no t functioning : abou t
4.5V
Chec k fo r loos e terminal s i n th eVSA converte r uni t 26 P connec -
tor . I f necessary , substitut e a
known-goo d VS A converte r unit ,
and recheck .
NOTE: Sto p th e wheel s b y pressin g th e
brak e peda l lightly .
Check fo r a n ope n i n th e T C ST Bcircuit :Measur e th e voltag e betwee n th e
PC M connecto r C (12P ) termina l
No . 1 2 an d bod y ground . Wir
e sid e o f femal e terminal s
PCM CONNECTO R C (12P )
Is ther e abou t 5 V whe n
VS A is no t functioning ? Repai
r ope n in th e wir e betwee n
th e VS A converte r uni t an d th e
PCM .
Wire sid e o f femal e terminal s
Chec k fo r a n ope n in th e T C F C
circuit :Measur e th e voltag e betwee n th e
PC M connecto r C (12P ) termina l
No . 1 0 an d bod y ground . NOTE
: Us e th e 1 0 V rang e o r a simila r rang e
i n a n analo g tester .
VSA IS NO T VS A ISFUNCTIONIN G FUNCTIONIN G
I s ther e abou t 4. 5 V whe n
VS A is no t functioning ? Repai
r ope n in th e wir e betwee n
th e VS A converte r uni t an d th e
PCM .
Chec k fo r loos e terminal s i n th e
PC M connectors . I f necessary ,
substitut e a known-goo d PCM ,
and recheck .
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