battery ACURA RL KA9 1996 Service Service Manual

DTC 11, 13, 15, 17: Wheel Sensor (Open/Short to Body Ground/Short to Power)

Check for a short to power in the

wheel sensor circuit:

1. Disconnect the VSA control

unit 42P connector.

2. Start the engine.

3. Measure the voltage between

the VSA control unit 42P con-

nector appropriate wheel sen-

sor (+) circuit terminal and

body ground (see table).
DTC

11 (Right-front)

13 (Left-front)

15 (Right-rear)

17 (Left-rear)
Appropriate Terminal

(+) Side

No. 16:FRS(+)

No. 28:FLS(+)

No. 31: RRS (+)

No.14: RLS(+)
(-) Side

No. 15: FRS(-)

No. 13:FLS (-)

No. 30:
RRS
(-)

No. 29: RLS (-)
VSA CONTROL UNIT 42P CONNECTOR

Is there battery voltage?
Repair short to power in the {+)

or (-) circuit wire between the

VSA control unit and appropriate

wheel sensor.
Wire side of female terminals

Check for a short to body ground

in the wheel sensor circuit:

1. Turn the ignition switch OFF.

2. Check for continuity between

the VSA control unit 42P con-

nector appropriate wheel sen-

sor (+) circuit terminal and

body ground (see table).

Is there continuity?
Repair short to body ground in

the (+) or (-) circuit wire between

the VSA control unit and the

appropriate wheel sensor.

Replace the appropriate wheel

sensor.

Check for an open in the wheel

sensor circuit:

Measure the resistance between

the VSA control unit 42P connector

appropriate wheel sensor (+) and

(-) circuit terminals (see table).

Is the resistance between

450 - 2,000 at 68°F?
• Repair open in the (+) or (-) cir-

cuit wire between the VSA con-

trol unit and the appropriate

wheel sensor.

• Replace the appropriate wheel

sensor.

Check for loose terminals in the

VSA control unit 42P connector.

If necessary, substitute a known-

good VSA modulator-control

unit, and recheck.ProCarManuals.com

Troubleshooting
DTC 27: Steering Angle Sensor
Perform the steering angle sen-
sor neutral position check proce-
dure (see page 19-268).
Is it OK?
Check the steering angle sensor
installation.
Is it correct?
Check for a short to power in the CAN circuit:
1. Disconnect the VSA control unit 42P connector, the steer-
ing angle sensor 4P connector
and the VSA converter unit
26P connector.2. Turn the ignition switch ON (II).
3. Measure the voltage between body ground and the VSA con-
trol unit 42P connector terminalNo. 24 and 40 individually.
Is there battery voltage?
Is there continuity?
Check for an open in the YRSA
YU circuit:
Check for continuity between the
VSA control unit 42P connector
terminal No. 39 and the steering angle sensor 4P connector termi-
nal No. 4.
Is there continuity?
(To page 19-229)
Perform the steering angle sen-
sor neutral position memorizing
procedure (see page 19-268).
Install the steering angle sensorcorrectly.
VSA CONTROL UNIT 42P CONNECTOR
Repair short to power in the wire
between the steering angle sen-
sor and the VSA control unit.
Wire side of female terminals
Repair short to body ground in
the wire between the steeringangle sensor and the VSA con-trol unit.
Repair open in the wire between
the steering angle sensor and the VSA control unit.STEERING ANGLE SENSOR4P CONNECTOR
Wire side of female terminals
Check for a short to body ground
in the CAN circuit:1. Turn the ignition switch OFF.
2. Check for continuity between body ground and the VSA con-
trol unit 42P connector terminal
No. 24 and 40 individually.
(RED/BLU)
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DTC 68: Brake Pedal Position Switch

Is there battery voltage?

Check for an open in the STOP

circuit:

Measure the voltage between the

VSA control unit 42P connector

terminal No. 32 and body ground

when the brake pedal is pressed.

Is there battery voltage?
Replace the brake pedal position

switch.

VSA CONTROL UNIT 42P CONNECTOR

Repair short to power in the wire

between the brake pedal position

switch and the VSA control unit.
Terminal side of female terminals

Repair open in the wire between

the brake pedal position switch

and the VSA control unit.

Check for loose terminals in the

VSA control unit 42P connector.

If necessary, substitute a known-

good VSA modulator-control

unit, and recheck.ProCarManuals.com

Removal
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
Restraint s ( sectio n 24 ) befor e preformin g repair s o r ser -
vice .
NOTE :
• A n assistan t i s helpfu l whe n removin g an d installin g
th e dashboard .
• Tak e car e no t t o scratc h th e dashboard , body , an d
relate d parts .
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e
radio , the n writ e dow n th e frequencie s fo r th e
radio' s prese t buttons .
2 . Disconnec t th e negativ e cabl e fro m th e battery .
3 . Remove :
• Consol e pane l an d rea r console , '9 6 - 9 8 model s
(se e pag e 20-48 )
• Consol e pane l an d rea r console , '9 9 - 0 1 model s
(se e pag e 20-49 )
• Cente r ai r vent , '9 6 - 9 8 model s (se e pag e 20-51 )
• Climat e contro l uni t an d audi o unit , '9 6 - 9 8 model s
(se e pag e 20-51 )
• Climat e contro l unit , audi o unit , an d cente r ai r vent ,
'99 - 0 1 model s (se e pag e 20-52 )
• Dashboar d lowe r cove r (passenger's) , glov e bo x
an d glov e bo x bac k cove r (se e pag e 20-53 )
• Consol e lowe r carpe t (se e pag e 20-47 )
• Dashboar d lowe r cove r (driver's ) (se e pag e 20-50 )
• Kic k pane l (se e pag e 20-43 )
4 . Lowe r th e steerin g colum n (se e sectio n 17 ).
T o avoi d accidenta l deploymen t an d
possibl e injury / alway s disconnec t th e driver' s airba g
connecto r befor e lowerin g th e steerin g colum n (se e
sectio n 24 ).
NOTE : T o preven t damag e to th e steerin g column , wra p it
wit h a sho p towel .
5. Remove the front passenger's airbag (see
section 24 ).
T o avoi d accidenta l deploymen t an d
possibl e injury , alway s disconnec t th e fron t passen -
ger' s airba g connecto r whe n th e SR S mai n harnes s
i s disconnecte d (se e sectio n 24 ).
Dashboar d
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Both Fans Low Speed and Radiator Fan High Speed

Both fans do not run at low speed,

and radiator fan does not run at

high speed (but condenser fan

runs at high speed).

Check for an open in the wire:

1. Disconnect the radiator fan 2P

connector.

2. Turn the ignition switch ON (II)

and the A/C system on to

MAX COOL.

3. Measure the voltage between

the No. 2 terminal and body

ground.
RADIATOR FAN 2P CONNECTOR

Wire side of female terminals

Is there battery voltage?
Repair open in the wire between

the radiator fan relay, the radia-

tor fan main relay and the radia-

tor
fan.

Is there continuity?
Check for an open in the wire

between the radiator fan and

body ground. If the wire is OK,

check for poor ground at G302.
Check for an open in the wire:

1. Turn the ignition switch OFF.

2. Check for continuity between

the No. 1 terminal of the radi-

ator fan 2P connector and

body ground.

Replace the radiator fan motor.ProCarManuals.com

Heater Uni t
Replacemen t
SRS component s ar e locate d i n 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 ser -
vice.
1. Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
the n writ e dow n th e frequencie s fo r th e radio' s pre -
set buttons .
2. Disconnec t th e negativ e cabl e fro m th e battery .
3 . Ope n th e cabl e clamp , the n disconnec t th e heate r
valv e cabl e fro m th e heate r valv e arm . Tur n th e heate r
valv e ar m to th e full y opene d positio n a s shown .
HEATE R VALV E AR M
CABL E CLAM P
HEATER VALV E CABL E
4. Whe n th e engin e i s cool , drai n th e engin e coolan t
fro m th e radiato r (se e sectio n 10 ).
D o no t remov e th e radiato r ca p whe n
th e engin e i s hot ; th e engin e coolan t i s unde r pres -
sur e an d coul d severel y scal d you . 5
. Disconnec t th e heate r hose s fro m th e heate r unit .
CAUTION : Engin e coolan t wil l damag e paint . Quickl y
rins e an y spille d engin e coolan t fro m painte d sur -
faces .
NOTE : Engin e coolan t wil l ru n ou t whe n th e hose s
ar e disconnected ; drai n it int o a clea n dri p pan .
HEATE R HOS E(INLE T SIDE )
CLAMP S
HEATE R HOS E
(OUTLE T SIDE )
6. Remov e th e dashboar d (se e sectio n 20 ).
7 . Remov e th e mountin g bolt s fro m th e lef t sid e o f
steerin g hange r beam .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
STEERIN G HANGE R BEA M
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Compressor
Replacemen t
1. I f th e compresso r i s marginall y operable , ru n th e
engin e a t idl e speed , an d le t th e ai r conditione r
wor k fo r a fe w minutes , the n shu t th e engine off.
2 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
the n writ e dow n th e frequencie s fo r th e radio' s pre -
se t buttons .
3 . Disconnec t th e negativ e cabl e fro m th e battery .
4 . Recove r th e refrigeran t wit h a recovery/recycling /
chargin g statio n (se e pag e 22-75 ).
5 . Loose n th e A/ C compresso r bel t (se e pag e 22-85 ).
A/ C COMPRESSO R BEL T
6. Remov e th e nuts , the n disconnec t th e suctio n lin e
an d th e discharg e lin e fro m th e compressor .
NOTE : Plu g o r ca p th e line s immediatel y afte r dis -
connectin g the m to avoi d moistur e an d dus t con -
tamination .
SUCTION LIN E
DISCHARG E LIN E
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m ,
7 Ibf-ft )
7. Remov e th e mountin g bolt s an d th e compressor .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
8. Remov e th e bolt s an d th e suctio n servic e valv e
fro m th e compressor .
25.5 N- m (2. 6 kgf-m , 18. 8 Ibf-ft )
SUCTIO N SERVIC E
VALV E
O-RIN G
Replace .
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Ignition Switc h
Test
SRS component s ar e locate d i n 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 .
NOTE: Th e PC M memor y mus t b e rese t afte r reconnectin g
th e batter y (se e sectio n 11 ).
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radi o
an d th e navigatio n system , the n writ e dow n th e fre -
quencie s fo r th e radio' s prese t buttons .
2 . Disconnec t th e batter y negativ e cable .
3 . Remov e th e dashboar d lowe r cove r (se e sectio n 20 ).
4 . Disconnec t th e 7 P connecto r fro m th e under-das h
fuse/rela y box .
7P CONNECTO R
Wire sid e o f
femal e terminal s
WHTBLK/YE L
YEL
WHT/RE D
BLK/WH T
5. Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h positio n accordin g t o th e table .
6 . I f th e continuit y check s d o no t agre e wit h th e table ,
replac e th e electrica l switch .
7. Afte r reconnectin g th e battery , ente r th e anti-thef t
cod e fo r th e radi o an d th e navigatio n system , the n
ente r th e customer' s radi o statio n presets .
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8. Afte r reconnectin g th e battery , ente r th e anti-thef t
cod e fo r th e radi o an d th e navigatio n system , the n
ente r th e customer' s radi o statio n presets .
SWITCH
LOCK CYLINDE R
Electrical Switc h Replacemen t
SRS component s ar e locate d i n thi s area . Review the
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 .
NOTE: Th e PC M memor y mus t b e rese t afte r reconnectin g
th e batter y (se e sectio n 11 ).
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radi o
an d th e navigatio n system , the n writ e dow n th e fre -
quencie s fo r th e radio' s prese t buttons .
2 . Disconnec t th e batter y negativ e cable .
3 . Remov e th e dashboar d lowe r cove r (se e sectio n 20 ).
4 . Disconnec t th e 7 P connecto r fro m th e under-das h
fuse/rela y box .
5 . Remov e th e steerin g colum n cover s (se e sectio n 17 ).
6 . Inser t th e ignitio n key , an d tur n it t o "0" .
7 . Remov e th e tw o screw s an d th e electrica l switc h
fro m th e steerin g lock .
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Battery
Test
• Batter y flui d (electrolyte ) contain s sulfuri c acid . I t ma y caus e sever e burn s if i t get s o n you r ski n o r i n you r eyes . Wea r
protectiv e clothin g an d a fac e shield .
— If electrolyt e get s o n you r ski n o r clothes , rins e it of f wit h wate r immediately .
— If electrolyt e get s in you r eyes , flus h it ou t b y splashin g wate r i n you r eye s fo r a t leas t 1 5 minutes ; cal l a physicia n
immediately .
• A batter y give s of f hydroge n gas . I f ignited , th e hydroge n wil l explod e an d coul d crac k th e batter y cas e an d splatte r
aci d o n you . Kee p sparks , flames , an d cigarette s awa y fro m th e battery .
• Overchargin g wil l rais e th e temperatur e o f th e electrolyte . Thi s ma y forc e electrolyt e to spra y ou t o f th e batter y vents .
Follo w th e charge r manufacturer' s instructions , an d charg e th e batter y a t a prope r rate .
NOTE : Th e PC M memor y mus t b e rese t afte r reconnectin g th e batter y (se e sectio n 11 ).
Us e eithe r a JC I o r Bea r ARBS T tester , an d follo w th e manufacturer' s procedures . I f yo u don' t hav e on e o f thes e
computerize d testers , follo w thi s conventiona l tes t procedure :
T o ge t accurat e results , th e temperatur e o f th e electrolyt e mus t b e betwee n 70° F (21°C ) an d 100° F (38°C) .
Stay s abov e 9. 6 volts ;
batter y i s OK . Drop
s belo w 9. 6 volts .
•
Appl y 30 0 am p loa d fo r 1 5 second s t o remov e
surfac e charge .
• Allo w 1 5 second s recover y period .
• Appl y tes t loa d (se e Tes t Loa d Chart) .
• Recor d voltag e a t th e en d o f 1 5 seconds .
Tes
t Loa d Capacit y (#1 )
EY
E Indicate s O K
I
f th e indicato r show s lo w electrolyte , ad d distille d
wate r i f possible .
EYE Indicate s LO W
CHARG E
Check Indicato r EY E Colo r
I
f th e cas e is cracke d o r th e post s ar e loose , replac e
the battery .
Check Fo r Damag e
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