ACURA RL KA9 1996 Service Repair Manual

Troubleshooting
DTC 98 : Differen t Mode l (cont'd )
(From pag e 19-265 )PCM CONNECTO R E (26P )
Chec k th e PCM :1. Connec t th e PC M connecto r E(26P) .2. Tur n th e ignitio n switc h O N (II) .
3 . Measur e th e voltag e betwee n
th e PC M connecto r E (26P )
termina l No . 2 0 an d bod y
ground .
Wire sid e o f femal e terminal s
Is ther e abou t 10V ? Replac
e th e PCM . (Th e PC M is
no t fo r thi s vehicl e model , o r
PC M failure. )
Is DT C 98 indicated ?Replace th e VS A converte r unit .
Chec k fo r loos e terminal s o f th e
VS A contro l uni t connector . I f
necessary , substitut e a known -
goo d VS A modulator-contro l
uni t an d recheck .
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Steering Angl e Senso r
Replacemen t
CAUTION: D o no t damag e o r dro p th e steerin g angl e senso r a s it i s sensitive .
1 . Remov e th e combinatio n switc h (se e sectio n 17 ).
2 . Remov e th e circli p an d screw , the n remov e th e steerin g angl e senso r fro m th e combinatio n switch .
3 . Instal l i n th e revers e orde r o f removal .
CAUTION : D o no t appl y an y greas e o r oi l t o th e steerin g angl e sensor .
4 . Perfor m th e steerin g angl e senso r neutra l positio n memorizin g procedur e (se e pag e 19-268 ).
SCREW S
STEERIN G ANGL E SENSO R
COMBINATIO N SWITC H
CANCEL CA M
WAV E WASHE R
SPRIN G
JOINTLOWE R COVE R
CIRCLI P
NOTE: Whe n reassembling , align the tab s o f th e join t an dcance l ca m to th e sli t o f th e steerin g angl e sensor .
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Steering Angl e Senso r
Neutral Positio n Chec k an d Memorizin g
Check
1. Connec t th e SC S servic e connecto r t o th e servic e chec k connecto r (2P ) unde r th e glov e box .
2 . Tur n th e ignitio n switc h O N (II) . Th e VS A activatio n indicato r come s o n the n goe s off .
3 . Pres s th e VS A of f switc h on e tim e befor e th e VS A activatio n indicato r come s o n again .
4 . Chec k tha t th e VS A activatio n indicato r come s o n whe n th e steerin g whee l i s i n th e straigh t ahea d positio n (neutra l
position) , an d th e indicato r goe s of f whe n th e steerin g whee l turn s t o th e righ t o r lef t mor e tha n 2. 5 degrees .
5 . I f th e VS A activatio n indicato r doe s no t com e o n o r g o off , perfor m th e neutra l positio n memorizin g procedure .
Memorizin g
1 . Connec t th e SC S servic e connecto r t o th e servic e chec k connecto r (2P ) unde r th e glov e box .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Pres s th e VS A of f switc h twic e befor e th e VS A activatio n indicato r come s o n again .
4 . Th e VS A activatio n indicato r come s o n fo r 0. 3 seconds , the n th e indicato r goe s of f 0. 2 second s an d come s on .
5. Tur n th e steerin g whee l fro m th e straigh t ahea d positio n to th e righ t unti l th e VS A activatio n indicato r goe s of f withi n 8
second s afte r th e VS A activatio n indicato r come s on .
6 . Tur n th e steerin g whee l fro m th e straigh t ahea d positio n the n t o th e lef t unti l th e VS A activatio n indicato r goe s of f
withi n 8 second s afte r performin g ste p 5 .
7 . Tur n th e steerin g whee l t o th e straigh t ahea d positio n an d press the VS A of f switc h withi n 1 2 second s afte r performin g
ste p 6 . Th e VS A activatio n indicato r goe s of f fo r 0. 3 seconds , the n th e VS A syste m shift s t o th e neutra l positio n chec k
mode .
8 . Chec k tha t th e VS A activatio n indicato r come s o n whe n th e steerin g whee l i s i n th e straigh t ahea d positio n (neutra l
position) , an d th e indicato r goe s of f whe n th e steerin g whee l turn s t o th e righ t o r lef t mor e tha n 2. 5 degrees .
9. Pres s th e VS A of f switch . Th e VS A activatio n indicato r wil l blink . I f th e indicato r doe s no t blink , repea t th e neutra l posi -
tion memorizin g procedure .
Push th e switc h twice .
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VSA Modulator-Control Unit

Removal/Installation

NOTE:

Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid does contact the paint, wash it off imme-

diately with water.

Take care not to damage or deform the brake lines during removal and installation.

To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent material.

Removal

1. Disconnect the pressure sensor 3P connector.

2. Pull the locking lever of the VSA control unit 42P connec-

tor up, then disconnect the connector.

3. Disconnect the six brake lines.

4. Remove the two 8 mm nuts.

5. Remove the VSA modulator-control unit.

Installation

1. Install the VSA modulator-control unit, then tighten the

two 8 mm nuts.

2. Align the connecting surfaces of the VSA control unit 42P

connector.

3. Push the locking lever of the VSA control unit 42P connec-

tor down until you hear a click.

4. Connect the pressure sensor 3P connector.

5. Connect the six brake lines.

6. Perform the precharge brake line bleeding (see page 19-

271).

7. Bleed the brake system, starting with the front wheels.

8. Start the engine, and check that the ABS indicator goes

off.

9. Test-drive the vehicle, and check that the ABS indicator

does not come on.

To right-rear

To left-rear

PRESSURE SENSOR

3P CONNECTOR

VSA MODULATOR

CONTROL UNIT
LOCKING LEVER

VSA CONTROL UNIT

42P CONNECTOR

To right-front

To left-front

FLARE NUT

15 N-m (1.5 kgf-m, 11 Ibf-ft)

MOUNTING BOLT

VSA CONTROL UNIT 42P CONNECTOR

8 mm BOLT

22 N-m (2.2 kgf-m, 16 Ibf-ft)
8 mm NUT

9 N-m (0.9 kgf-m, 7 Ibf-ft)

RUBBER MOUNT

BRACKETProCarManuals.com

Precharge Pum p Moto r
Removal/Installatio n
NOTE:
Do no t spil l brak e flui d o n th e vehicle ; i t ma y damag e th e paint ; i f brak e flui d doe s contac t th e paint , was h it of f imme -
diatel y wit h water .
Tak e car e no t t o damag e o r defor m th e brak e line s durin g remova l an d installation .
T o preven t th e brak e flui d fro m flowing , plu g an d cove r th e hos e end s an d joint s wit h a sho p towe l o r equivalen t material .
Remova l
1. Disconnec t th e precharg e pum p moto r 2 P connector .
2 . Disconnec t th e brak e lin e an d th e brak e hos e fro m th e precharg e pum p motor .
3 . Remov e th e thre e 6 m m bolt s fro m th e precharg e pum p motor , the n remov e th e precharg e pum p moto r wit h bracket .
4 . Remov e th e tw o 6 m m bolt s an d 8 m m nut , the n remov e th e precharg e pum p motor .
Installatio n
1. Instal l th e precharg e pum p moto r o n th e bracket , the n tighte n th e tw o 6 m m bolt s an d th e 8 m m nut .
2 . Instal l th e precharg e pum p moto r wit h bracket , the n tighte n th e thre e 6 m m bolts .
3 . Connec t th e brak e lin e an d th e brak e hos e o n th e precharg e pum p motor .
4 . Perfor m th e precharg e brak e lin e bleedin g (se e pag e 19-271 ).
5 . Blee d th e brak e system , startin g wit h th e fron t wheels .
6 . Star t th e engine , an d chec k tha t th e AB S indicato r goe s off .
7 . Test-driv e th e vehicle , an d chec k tha t th e AB S indicato r doe s no t com e on .
6 m m BOL T
9. 8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
BRAKE HOS E
8 m m NU T13 N- m (1. 3 kgf-m , 9. 4 Ibf-ft )
BRAKE LIN E
FLAR E NU T
1 5 N- m 11. 5 kgf-m , 1 1 Ibf-ft )
PRECHARG E PUM P MOTO R
RUBBE R MOUN T
MOUNTIN G BOL T
PRECHARG E PUM P MOTO R2P CONNECTO R
BRACKET
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Precharge Brake Line Bleeding

1. Connect the SCS service connector to the service check connector (2P) under the glove box.

2. Press the parking brake pedal.

3. Press the VSA off switch, and hold it.

4. Turn the ignition switch ON (II).

5. Release the VSA off switch after the VSA activation indicator goes off twice.

6. Press the VSA off switch after the VSA activation indicator comes on.

7. Release the VSA off switch after the VSA activation indicator goes off.

8. Press the VSA off switch after the VSA activation indicator starts blinking.

9. Release the VSA off switch after the VSA activation indicator stops blinking.

10. Turn the ignition switch OFF, then repeat steps 2 through 10 for 4 times.ProCarManuals.com

TCS Contro l Valv e Assembl y
Replacemen t
CAUTION: B e carefu l no t t o damag e th e TC S contro l valv e whe n handlin g th e TC S contro l valv e assembly .
1 . Disconnec t th e vacuu m tube , breathe r pipe , an d ai r hos e fro m th e intak e ai r duct .
2. Loose n th e intak e ai r duc t ban d screws , the n remov e th e intak e ai r duct .
BREATHE R PIP E
AIR HOS E
NOTE : Whe n installin g th e duct ,
alig n th e marks . NOTE
: Whe n installin g th e duct ,
alig n th e cutou t wit h th e mark .
VACUU M TUB E
INTAK E AI R DUC T
BAND SCRE W
INTAKE AI R DUC T
3. Disconnec t th e TC S contro l valv e angl e senso r connecto r an d actuato r connector .
4 . Remov e th e TC S contro l valv e assembl y an d bracket .
5 . Instal l th e TC S contro l valv e assembl y in th e revers e orde r o f removal .
TCS CONTROL VALVE ANGLE
SENSOR CONNECTOR
6 x 1. 0 m m BOL T12 N- m (1. 2 kgf-m , 9 Ibf-ft )
TCS CONTRO L VALV EACTUATO R CONNECTO R
TCS CONTRO L VALV EASSEMBL Y
8 x 1.2 5 mm NU T22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
BRACKE T8 x 1.2 5 m m BOL T22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
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VSA Off Switch

VSA Converter Unit

Test

1. Remove the VSA off switch from the switch panel.

VSA OFF SWITCH

2. Check for continuity between terminal No. 1 and

No. 2 (illumination light circuit) and between termi-

nal No. 3 and No. 4 (switch circuit).

There should be continuity when the switch is

pushed, and there should be no continuity when the

switch is released.

VSA OFF SWITCH

6P CONNECTOR

Terminal side of male terminals
Removal/Installation

1. Remove the glove box.

2. Remove the glove box back cover.

3. Remove the right front door trim.

4. Remove the right kick panel.

5. Lift up the floor mat.

6. Remove the PCM cover.

7. Remove the connectors inside of the right kick

panel.

8. Remove the harness clip A from the VSA converter

unit, then remove the bolt on the lower side of the

VSA converter unit.

9. Remove the multiplex control unit (passenger's).

10. Remove the harness clip B and C.

11. Remove the bolt at the rear of the VSA converter

unit, then pull out the VSA converter unit.

HARNESS CLIP B

VSA CONVERTER UNIT
CONNECTORS

(Inside the

right kick panel.)

HARNESS

CLIP A

HARNESS CLIP C

MULTIPLEX CONTROL

UNIT
(PASSENGER'S)

12. Install the VSA converter unit in the reverse order of

removal.ProCarManuals.com

Yaw Rate/Latera l
Acceleration Senso r
Pulsers /
Wheel Sensor s
Removal/Installatio n
CAUTION: D o no t damag e o r dro p th e ya w rate/latera l
acceleratio n senso r a s it i s sensitive .
1 . Remov e th e trun k fron t tri m an d th e spar e tir e li d
(se e sectio n 20 ).
2 . Remov e th e senso r cover .
3. Remov e th e ya w rate/latera l acceleratio n sensor .
4. Instal l th e senso r i n th e revers e orde r o f removal .
6 m m NU T9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
6 m m BOL T
9. 8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
YAW RATE/LATERA LACCELERATION SENSO R
SENSO R COVE R
Inspectio n
1. Chec k th e fron t an d rea r pulse r fo r chippe d o r dam -
aged teeth .
2 . Measur e th e ai r ga p betwee n th e whee l senso r an d
pulse r al l th e wa y aroun d whil e rotatin g th e pulser .
If th e ga p exceed s 1. 0 m m (0.0 4 in) , chec k fo r a ben t
suspensio n arm .
Standard :
Front/Rear : 0. 4 - 1. 0 m m (0.0 2 - 0.0 4 in )
Fron t
0.4-1. 0 m m(0.0 2 - 0.04 in)
Rea r
Remov e th e rea r brak e dis c t o inspec t th e rea r whee l
senso r ai r gap .
0.4-1. 0 mm(0.0 2 - 0.04 in)
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Wheel Senso r Replacemen t
Install th e sensor s carefull y to avoi d twistin g wires .
Front
6 m m BOL T
9. 8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
WHEE L SENSO R
Rear
6 m m BOL T
9. 8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
WHEE L SENSO R
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