1996 ACURA RL KA9 Service Repair Manual

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Page 1233 of 1954

ACURA RL KA9 1996 Service Repair Manual Special Tool s
Ref. No .Too l Numbe r DescriptionQtyPag e Referenc e
07PAZ-001010 0 SC S Servic e Connecto r 19-20 6
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Page 1234 of 1954

ACURA RL KA9 1996 Service Repair Manual
Component Locations

SERVICE CHECK CONNECTOR (2P)

RIGHT-REAR WHEEL SENSOR

VSA CONVERTER UNIT

VSA MODULATOR

CONTROL UNIT

TCS CONTROL

VALVE SENSOR

RIGHT-FRONT

WHEEL SENSOR
PRECHARGE

PUMP MOTO

Page 1235 of 1954

ACURA RL KA9 1996 Service Repair Manual Terminal Arrangemen t
VSA CONTRO L UNI T 42 P CONNECTO R
Wire sid e o f femal e terminal s
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Page 1236 of 1954

ACURA RL KA9 1996 Service Repair Manual Terminal
number
23
2 4
25
2 6
27
2 8
2 9
30
3 1
3 2
33
3 6
38
39
4 0
4 1
42
Wir e
colo r
YEL/BL K
WHT
YEL
BLU
WHT/BL K
GRN/BLU
GRY
BLU/YE L
GRN/YE L
GRN/WH T
LT GRN /
RED
GRN/WH T
GRN/RED
YEL
PNK
BLK

Page 1237 of 1954

ACURA RL KA9 1996 Service Repair Manual
Terminal Arrangement

VSA CONVERTER UNIT 26P CONNECTOR

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Page 1238 of 1954

ACURA RL KA9 1996 Service Repair Manual
Terminal

number
Wire

color
Terminal

sign
Description
Measurement (With the VSA converter unit 26P

connector connected)

Terminals
Conditions
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Page 1239 of 1954

ACURA RL KA9 1996 Service Repair Manual Troubleshooting Precaution s
System Indicator s
If th e syste m is OK , th e AB S indicato r goe s of f onc e afte r turnin g th e ignitio n switc h O N (II ) withou t startin g th e engine ,
an d th

Troubleshooting Precaution s
System Indicator s
If th e syste m is OK , th e AB S indicato r goe s of f onc e afte r turnin g th e ignitio n switc h O N (II ) withou t startin g th e engine ,
an d the n com e o n agai n an d g o of f severa l second s late r afte r startin g th e engine . Thi s occur s becaus e th e VS A contro l
uni t i s turne d o n b y th e IG 2 powe r source .
Th e AB S indicato r o r VS A syste m indicato r come s o n whe n th e VS A contro l uni t detect s a proble m in th e system .
Th e AB S indicato r o r VS A syste m indicato r wil l als o com e o n unde r thes e conditions , eve n thoug h th e syste m is oper -
atin g properly :
— Th e vehicl e goe s int o a spi n
— Th e AB S continue s t o operat e fo r a lon g tim e
— Th e vehicl e is subjecte d to a n electrica l signa l disturbanc e
I f ther e is a faul t i n th e PGM-F I system , onl y th e VS A syste m indicato r come s on .
Th e VS A Activatio n Indicato r wil l flas h whe n onl y th e driv e wheel s rotat e o r on e o f th e driv e wheel s is stuck . Whe n thi s
occurs , th e AB S indicato r an d VS A syste m indicato r d o no t com e on .
T o determin e th e actua l caus e o f th e problem , questio n th e custome r abou t th e problem , takin g thes e condition s int o con -
sideration .
Whe n a proble m is detecte d an d th e AB S o r VS A indicato r come s on , ther e ar e case s whe n th e indicato r stay s o n unti l
th e ignitio n switc h i s turne d OFF , an d case s whe n th e indicato r goe s of f automaticall y whe n th e syste m return s t o nor -
mal . Fo r DT C 6 1 an d 62 , th e indicato r goe s of f automaticall y whe n th e syste m return s t o normal . Fo r al l othe r codes ,
th e indicato r stay s o n unti l th e ignitio n switc h is turne d OFF .
Fo r DTC s 12 , 14 , 16 , 18 , 51 , 52 , 53 , 66 , 6 8 an d 84 , th e AB S indicato r goe s of f whe n th e vehicl e is drive n agai n an d th e
syste m is O K afte r th e ignitio n switc h is turne d fro m OF F to O N (II) . However , i f th e DT C is cleared , th e CP U reset s an d
th e indicato r goe s of f righ t afte r th e engin e is starte d if th e syste m is OK .
Th e AB S is no t operationa l whe n th e AB S indicato r i s ON ; th e VS A is no t operationa l whe n th e VS A indicato r i s ON .
Whe n th e VS A indicato r an d MI L ar e bot h ON , troubleshoo t th e PGM-F I syste m first .
Diagnosti c Troubl e Cod e (DTC )
Th e memor y ca n hol d an y numbe r o f DTCs . However , whe n th e sam e DT C is detecte d mor e tha n once , th e mor e recen t
DT C is writte n ove r th e earlie r one . Therefore , whe n th e sam e proble m is detecte d repeatedly , i t i s memorize d a s a sin -
gle DTC .
The DTC s ar e indicate d in ascendin g numbe r order , no t i n th e orde r the y occur .
Th e DTC s ar e memorize d in th e EEPRO M (non-volatil e memory) . Therefore , th e memorize d DTC s canno t b e cancele d
b y disconnectin g th e battery . Perfor m th e specifie d procedure s to clea r th e DTCs .
Self-diagnosi s
Self-diagnosis can be classifie d int o tw o categories :
— Initia l diagnosis : Performe d righ t afte r th e engin e start s an d unti l th e AB S o r VS A indicato r goe s off .
— Regula r diagnosis : Performe d righ t afte r th e initia l diagnosi s unti l th e ignitio n switc h is turne d OFF .
When a proble m is detecte d b y self-diagnosis , th e VS A contro l uni t shift s to fail-saf e mode .
Kickbac k
The pum p moto r operate s whe n th e AB S is functioning , an d th e flui d in th e reservoi r i s force d ou t t o th e maste r cylinder ,
causing kickbac k a t th e brak e pedal .
Pum p Moto r
Th e pum p moto r operate s whe n th e AB S is functioning .
The VS A contro l uni t check s th e pum p moto r operatio n durin g initia l diagnosi s whe n th e vehicl e is started .
You ma y hea r th e moto r operat e a t thi s time , bu t i t i s normal .
Brak e Flui d Replacement/Ai r Bleedin g
Brak e flui d replacemen t an d ai r bleedin g procedure s ar e identica l t o th e procedure s us e o n vehicle s no t equippe d wit h
VSA . T o eas e bleeding , star t wit h th e fron t wheels .
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Page 1240 of 1954

ACURA RL KA9 1996 Service Repair Manual Troubleshooting
The troubleshootin g flowchar t procedure s assum e tha t th e caus e o f th e proble m is stil l presen t an d th e AB S indicato r
and/o r VS A syste m indicato r i s stil l on . Fo

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