1995 ACURA TL lock

Diagnostic
Troubl e Cod e
(DTC) *
P1794
(13)
P178 6
(14)
P071 5
(15)
P176 8
(16)
P178 7
(18)
P074 0
(none )
P0730
(none )
Indicato r
Light
Blink s
Blinks
'95, '96 , '97
model s
OFF
'98 mode l
Blink s
Blinks
OFF
OF F
OFF
Sympto m
• N o specifi c sympto m appears .
• Transmissio n jerk s har d whe n
shifting .
• Transmissio n jerk s har d whe n
shifting .
• Lock-u p clutc h doe s no t engage .
• Fail s t o shif t (stuc k in 4t h gear) .
• Lock-u p clutc h doe s no t engage .
• Lock-u p clutc h doe s no t hav e
duty operatio n (O N OFF )
• Lock-u p clutc h doe s no t engage .
• Fail s t o shif t (betwee n 1s t -2nd,
1s t - 2n d - 3rd , 1st - 2nd - 4th , 1st
- 3r d - 4th , 2n d - 3r d - 4t h gear s
only) .
• Fail s t o shif t (stuc k in 1s t gear) .
Possibl e Caus e
• Shor t o r ope n in BARO S S (RED/BLU )
wir e betwee n B 2 termina l an d EC M
• Fault y barometri c pressur e (BARO )
sensor
NOTE : BAR O senso r i s buil t int o ECM .
• Shor t o r ope n in FA S (PNK ) wir e
betwee n B1 9 termina l an d EC M
• Fault y EC M
• Disconnecte d mainshaf t spee d senso r
connecto r
• Shor t o r ope n in mainshaf t spee d sen -
so r wir e
• Fault y mainshaf t spee d senso r
• Disconnecte d linea r solenoi d connecto r
• Shor t o r ope n in linea r solenoi d wir e
• Fault y linea r solenoi d
• Disconnecte d o r loose d P G termina l
• Shor t o r ope n in FF S (RED/GRN ) wir e
betwee n A2 4 termina l an d EC M
• Fault y EC M
• Fault y TC M
• Fault y lock-u p contro l syste m
• Fault y shif t contro l syste m
Refer t o
Pag e
14-7 6
14-77
14-7 9
14-8 1
14-8 3
14-8 4
14-8 5
(DTC)* : Th e DTC s i n parenthese s ar e th e code s o f th e indicato r ligh t indicate s whe n th e servic e chec k connecto r i s con -
necte d t o 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 a n inspectio n accordin g t o th e tabl e below .
Sympto m
indicator ligh t doe s no t com e o n fo r tw o second s afte r ignitio n
switc h i s firs t turne d o n (II) .
indicato r ligh t i s o n constantl y (no t blinking ) wheneve r th e ignitio n
switch i s o n (II) .
Shif t leve r canno t b e move d fro m positio n wit h th e brak e peda l
depressed . Inspectio
n
Chec k brak e switc h signal . Ref
. pag e
14-86
14-8 8
14-8 9
NOTE :
If a custome r describe s th e sympto m fo r cod e P179 0 (3) , bu 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 t o recreat e th e sympto m b y test-driving , the n rechec k 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 , repai r
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 BAC K U P RADI O 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 .
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Lock-up Contro l Solenoi d Valv e A/ B
Tes t
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 . Disconnec t th e transmissio n sub-harnes s connecto r
(14P).
2.Measur e th e resistanc e betwee n th e No . 1 termina l
(solenoi d valv e A ) o f th e transmissio n sub-harnes s
connecto r an d bod y ground , an d betwee n th e No . 3
termina l (solenoi d valv e B ) an d bod y ground .
STANDARD : 1 2 - 2 5
TRANSMISSIO N
SUB-HARNES S
CONNECTO R TRANSMISSIO
N SUB-HARNES S
CONNECTO R (14P )
TERMINA L SID E
O F MAL E
TERMINAL S
3. I f th e resistanc e i s ou t of specification , disconnec t
th e 2 P connecto r fro m th e lock-u p contro l solenoi d
valv e A/B .
4. Measur e th e resistanc e betwee n th e No . 1 termina l
(solenoi d valv e A ) of the lock-u p contro l solenoi d
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 .
STANDARD : 1 2 - 2 5
LOCK-U P CONTRO L
SOLENOI D VALV E
ASSEMBL Y LOCK-U
P CONTRO L
SOLENOI D CONNECTO R
WIR E SID E O F
FEMAL E TERMINAL S
5.
6.
7 .
If th e resistanc e i s OK , replac e th e transmissio n
sub-harness.
Replace th e lock-u p contro l solenoi d valv e assem -
bly if th e resistanc e is ou t o f specification .
If 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 .
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Replacement
1. Remov e th e mountin g bolt s an d lock-u p contro l
solenoi d valv e assembly .
NOTE : B e sur e t o remov e o r replac e th e lock-u p
contro l solenoi d valv e A an d B as a n assembly .
2 . Chec k th e lock-u p contro l solenoi d valv e flui d pas -
sage s fo r dus t o r dirt , an d replac e a s a n assembly , i f
necessary .
6 x 1. 0 m m12 N- m(1.2 kgf-m , 8. 7 Ibf-ft )
LOCK-U P CONTRO LSOLENOID VALV EASSEMBL Y
3.
4 .
FILTER/GASKE T
Replace.
Clean mountin g surfac eand flui d passages .
Clean th e mountin g surfac e an d flui d passage s o f th e
lock-u p contro l solenoi d valv e assembly , an d instal l a
ne w lock-u p contro l solenoi d valv e A/ B wit h a ne w
filter/gasket .
Chec k connecto r fo r rust , dir t o r oil , an d reconnec t i t
securely .
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Linear Solenoi d
Test
1. Disconnec t th e transmissio n sub-harnes s connecto r
(HP).
2. Measur e th e resistanc e betwee n th e No . 8 an d No . 9
terminal s o f th e transmissio n sub-harness .
STANDARD: 5. 0 - 5. 6 (a t 70°F , 20°C )
TRANSMISSIO NSUB-HARNESSCONNECTOR TRANSMISSIO
N SUB-HARNES S
CONNECTO R (14P )
TERMINA L SID E
O F MAL E
TERMINAL S
3. I f th e resistanc e is ou t o f specification , disconnec t th e
transmissio n sub-harnes s fro m th e linea r solenoi d
harness.
4. Measur e th e resistanc e betwee n th e No . 1 an d No . 2
terminal s of the linea r solenoi d harness .
STANDARD : 5. 0 - 5. 6 (a t 70°F , 20°C )
LINEA R SOLENOI DCONNECTO R
WIRE SID E O F
FEMAL E TERMINAL S LOCK-U
P CONTRO L
SOLENOI D VALV E
ASSEMBL Y
LINEA R SOLENOI D
HARNESSCONNECTO R
5. Replac e th e transmissio n sub-harnes s i f th e resis -
tanc e i s withi n specification .
6 . Replac e th e linea r solenoi d i f th e resistanc e is ou t o f
specification .
7 . I f th e resistanc e i s withi n th e standard , connec t th e
No . 2 termina l o f th e linea r solenoi d connecto r t o
th e batter y positiv e termina l an d connec t th e No . 1
termina l t o th e batter y negativ e terminal . A clickin g
soun d shoul d b e heard . I f n o clickin g soun d i s
heard , replac e th e linea r solenoi d an d throttl e valv e
bod y a s a n assembly .
NOTE : I f th e linea r solenoi d replacemen t i s required ,
se e Throttl e Valv e Body/Linea r Solenoi d Replacemen t
(se e pag e 14-147 ).
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Pressure Testin g
While testing , b e carefu l o f th e rotatin g fron t wheels .
Mak e sur e lifts , jack s an d safet y stand s ar e place d
properl y (se e sectio n 1 ).
CAUTION :
Befor e testing , b e sur e th e transmissio n flui d is fille d
t o th e prope r level .
War m u p th e engin e befor e testing .
1. Rais e th e fron t o f th e vehicle , an d suppor t i t wit h
safet y stand s (se e sectio n 1 ).
2 . Se t th e parkin g brake , an d bloc k bot h rea r wheel s
securely .
3. Allo w th e fron t wheel s t o rotat e freely .
4 . War m u p th e engin e (th e radiato r fa n come s on) ,
the n sto p an d connec t a tachometer .
5 . Connec t th e specia l too l t o eac h inspectio n hole .
TORQUE : 1 8 N- m (1. 8 kgf-m , 1 3 Ibf-ft )
CAUTION : Connec t th e oi l pressur e gaug e securely ,
b e sur e no t t o allo w dus t an d othe r foreig n particle s
t o ente r th e inspectio n hole .
A/T PRESSUR E GAUG E
SE T W/PANE L
07406-002040 0
A/T LO W PRESSUR E
GAUG E W/PANE L
0740 6 - 007030 0
A/ T PRESSUR E HOSE ,
2210 mm07MAJ-PY4011 A
( 4 Required )
A/ T PRESSUR E HOS E
ADAPTE R07MAJ - PY4012 0
( 4 Required )
NOTE: Us e th e A/ T Pressur e Gaug e Se t (0740 6 -
0020003 ) o r A/ T Lo w Pressur e Gaug e (0740 6 -
0070000) , an d th e A/ T pressur e gaug e hose s an d
adapter s show n above . 6
. Disconnec t th e 2 P connecto r fro m th e linea r solenoi d
connector .
7 . Star t th e engine , an d ru n i t a s follows :
A t 2,00 0 rp m fo r lin e pressur e an d clutc h pressur e
measurement .
A t 2,00 0 rp m fo r throttl e B pressur e measurement .
8 . Shif t t o th e respectiv e shif t leve r positio n a s i n th e
table , an d measur e eac h pressur e a t th e fully-opene d
throttle conditio n accordin g to th e table .
NOTE : Whil e testin g fo r lin e pressur e measurement ,
highe r pressur e ma y b e indicate d i f measurement s
are mad e i n shif t leve r position s othe r tha n o r
position .
9. Connec t batter y voltag e t o th e linea r solenoi d con -
necto r terminals .
LINEAR SOLENOI D HARNES S CONNECTO R
WIR E SID E O F
FEMAL E TERMINAL S
LINEA R SOLENOI D
HARNES S
CONNECTO R LOCK-U
P CONTRO L
SOLENOI D VALV E
ASSEMBL Y
10. Shif t t o th e respectiv e shif t leve r positio n a s i n th e
table , an d measur e eac h pressur e a t th e fully-close d
throttle condition .
11. Disconnec t th e specia l tool , an d connec t th e linea r
solenoi d connector .
12 . Instal l th e sealin g bol t wit h a ne w sealin g washe r i n
th e inspectio n hole , an d tighte n t o th e specifie d
torque.
TORQUE : 1 8 N- m (1. 8 kgf-m , 1 3 Ibf-ft )
NOTE : D o no t reus e ol d sealin g washers ; alway s
replac e washers .
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Transmission
Removal (cont'd )
16. Shif t th e transmissio n int o th e position .
17. Remov e th e 3 3 m m sealin g bolt .
18. Remov e th e extensio n shaf t fro m th e differentia l usin g
th e specia l too l a s shown .
33 m mSEALIN G BOL T
EXTENSIO N SHAF T
EXTENSIO N SHAF T
PULLE R
07LAC-PW5010 1
19. Remov e th e tw o bolt s fro m th e exhaus t pip e A stay .
20 . Remov e th e exhaus t pip e A an d exhaus t manifol d
brackets .
GASKET
Replace .
EXHAUS T MANIFOL D
BRACKETS
EXHAUST
PIP E A
GASKE T
Replace .
21. Remov e th e shif t cabl e cover .
22. Remov e th e shif t cabl e holde r fro m th e transmissio n
rear cover .
23 . Remov e th e contro l leve r fro m th e contro l shaft , the n
remov e th e shif t cable .
CAUTION : Tak e car e no t t o ben d th e shif t cable .
SHIFT CABL EHOLDE RSHIFT CABL E
COVE R BRACKE T
SHIF T CABL E COVE R
FLOATIN G
WASHER S
LOCK WASHE R
Replace . CONTRO
L SHAF T
CONTRO L LEVE R
24. Disconnec t th e A/ T gea r positio n switc h connector ,
the n remov e th e harnes s bracket .
HARNES S BRACKE T
A/ T GEA R POSITIO N
SWITC H CONNECTO R
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REAR COVE R
1ST CLUTC H FEE D PIP E
O-RING S Replace .
FEE D PIP E GUID E
BAL L BEARIN G
SNAP RIN G
REA R COVE R GASKE T Replace .
DOWE L PI N
1ST-HOL D CLUTC H FEE D PIP E
O-RING S Replace .
FEE D PIP E GUID E
SNA P RIN G
AT F FEE D PIPE S
MAINSHAF T LOCKNUT , 2 4 x 1.2 5 m m (Flang e nut ) Replace .
CONICA L SPRIN G WASHE R Replace .
1S T CLUTC H ASSEMBL Y
O-RING S Replace .
THRUS T WASHE R
THRUS T NEEDL E BEARIN G
NEEDL E BEARIN G
MAINSHAF T 1S T GEA R
THRUS T WASHE R
MAINSHAF T 1S T GEA R COLLA R
COUNTERSHAF T LOCKNUT , 2 4 x 1.2 5 m m (Flang e nut ) Replace .
CONICA L SPRIN G WASHE R Replace .
1ST-HOL D CLUTC H ASSEMBL Y
O-RING S Replace .
THRUS T WASHE R
THRUS T NEEDL E BEARIN G
1ST-HOL D CLUTC H HU B
COUNTERSHAF T 1S T GEA R
ONE-WA Y CLUTC H
NEEDL E BEARING S
COUNTERSHAF T 1S T GEA R COLLA R
PARKIN G GEA R
PARKIN G BRAK E PAW L SHAF T
PARKIN G BRAK E PAW L SPRIN G
PARKIN G BRAK E PAW L
PARKIN G BRAK E PAW L STOPPE R
A/ T GEA R POSITIO N SWITC H HARNES S
AT F DIPSTIC K
TORQU E SPECIFICATION S
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Rear Cover

Removal

NOTE:

Clean all parts thoroughly in solvent or carburetor cleaner, and dry with compressed air.

Blow out all passages.

When removing the rear cover, replace the following:

O-rings

Mainshaft and countershaft locknuts

Conical spring washers

LOCKNUTS

Replace.

Mainshaft locknut has left-hand threads.
CONICAL SPRING

WASHER

Replace.

1ST-HOLD CLUTCH

ASSEMBLY

THRUST WASHER

THRUST NEEDLE

BEARING

1 ST-HOLD CLUTCH

HUB

1ST GEAR

ONE-WAY CLUTCH

NEEDLE BEARINGS

1ST GEAR COLLAR

PARKING GEAR

COUNTERSHAFT

MAINSHAFT
CONICAL SPRING

WASHER

Replace.

1ST CLUTCH

ASSEMBLY

THRUST WASHER

•THRUST NEEDLE

BEARING

NEEDLE BEARING

1ST GEAR

THRUST WASHER

1ST GEAR COLLAR
6 x 1.0 mm Bolt

8 Bolts

REAR COVER

DOWEL PINS

REAR COVER

GASKET

Replace.

ATF FEED PIPES, 4
A/T GEAR POSITION

SWITCH HARNESS
6 x 1.0 mm BoltProCarManuals.com