ACURA TL 1995 Service Repair Manual

Fuel Gaug e
Gauge Tes t
1. Chec k th e No . 1 (1 0 A ) fus e in th e under-das h fuse /
rela y bo x befor e testing .
2 . Remov e th e acces s pane l fro m th e floor .
3 . Disconnec t th e 3 P connecto r fro m th e fue l gaug e
sendin g unit .
ACCES S PANE L
3P CONNECTO R
WIRE SID E O F FEMAL E TERMINAL S
4. Connec t th e voltmete r positiv e prob e t o th e No . 2
termina l an d th e negativ e prob e t o th e No . 1 termi -
nal , the n tur n th e ignitio n switc h O N (II) .
Ther e shoul d b e betwee n 5 an d 8 V .
I f th e voltag e is a s specified , g o to ste p 5 .
I f th e voltag e is no t a s specified , chec k for :
— an ope n in th e YEL/BL U o r BL K wire .
— poo r groun d (G701) . 5
. Tur n th e ignitio n switc h OFF .
6 . Attac h a jumpe r wir e betwee n th e No . 1 an d No . 2
terminals , the n tur n th e ignitio n switc h O N (II) .
7 . Chec k tha t th e pointe r o f th e fue l gaug e start s mov -
in g towar d th e "F " mark .
CAUTION : Tur n th e ignitio n switc h OF F befor e th e
pointe r reache s "F " o n th e gaug e dial . Failur e to d o
s o ma y damag e th e fue l gauge .
NOTE : Th e fue l gaug e is a bobbi n (cross-coil ) type ,
henc e th e fue l leve l i s continuousl y indicate d eve n
when th e ignitio n switc h i s OFF , an d th e pointe r
moves mor e slowl y tha n tha t o f a bimeta l type .
I f th e pointe r o f th e fue l gaug e doe s no t mov e a t
all , replac e th e gauge .
I f th e gaug e i s OK , inspec t th e fue l gaug e send -
ing unit .
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Fuel Gaug e
Sendin g Uni t Tes t
Do no t smok e whil e workin g o n th e fue l
system . Kee p ope n flam e awa y fro m you r wor k area .
1. Remov e th e rea r seat , trun k fron t trim , an d carpe t
(see sectio n 20 ).
2 . Remov e th e fue l tan k acces s panel .
3. Wit h th e ignitio n switc h OFF , disconnec t th e 3 P con -
necto r fro m th e fue l gaug e sendin g unit .
5. Measur e th e resistanc e betwee n th e No . 1 an d No . 2
terminal s a t E (EMPTY) , 1/ 2 (HAL F FULL ) an d F
(FULL ) b y movin g th e float .
If yo u d o no t ge t th e abov e readings , replac e th e
fue l gaug e sendin g unit .
4
. Remov e th e fue l gaug e sendin g uni t usin g th e spe -
cia l too l a s shown .
FUEL SENDE R WRENC H07GAC - SE0020A
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Low Fue l Indicato r Syste m
Indicato r Ligh t Tes t
1. Chec k th e No . 1 (1 0 A ) fus e i n th e under-das h fuse /
rela y bo x befor e testing .
2 . Par k th e ca r o n leve l ground .
D o no t smok e whil e workin g o n th e
fue l system . Kee p ope n flam e awa y fro m th e wor k
area . Drai n fue l onl y int o a n approve d container .
3 . Drai n th e fue l int o a n approve d container . The n
instal l th e drai n bol t wit h a ne w washer .
4. Ad d les s tha n 8. 5 (2. 2 U.S.Gal , 1. 8 Imp . Gal ) o f fuel ,
and tur n th e ignitio n switc h O N (II) . Th e low fuel
indicato r ligh t shoul d com e o n withi n fou r minutes .
LOW FUE L INDICATO R LIGH T
If th e ligh t come s o n withi n fou r minutes , g o t o
ste p 7 .
I f th e ligh t doe s no t com e o n withi n fou r min -
utes , g o t o ste p 5 .
5.
6.
Remov e th e fue l tan k acces s pane l fro m th e floor ,
an d disconnec t th e 3 P connecto r fro m th e fue l
gaug e sendin g unit .
Connec t th e No . 1 an d No . 3 terminal s wit h a
jumpe r wire .
If th e ligh t come s on , chec k th e sendin g unit .
If th e ligh t doe s no t com e on , chec k for :
— an ope n i n th e L T GRN/RE D wir e betwee n th e
fue l uni t an d fue l gaug e assembly .
— blow n bulb .
— poo r groun d (G701) .
ACCESS PANE L
©
3P CONNECTO R
7.
L T GRN/RE D
WIR E SID E O F FEMAL E TERMINAL S
Add 4 o f fue l (1. 1 U.S . Gal , 0. 9 Imp.Gal) . Th e ligh t
shoul d g o of f withi n fou r minutes .
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Engine Coolan t Temperatur e (ECT ) Gaug e
Gauge Tes t
1. Chec k th e No . 1 (1 0 A ) fus e in th e under-das h fuse /
rela y bo x befor e testing .
2 . Mak e sur e th e ignitio n switc h i s OFF , the n discon -
nec t th e YEL/GR N wir e fro m th e EC T sendin g unit ,
and groun d it wit h a jumpe r wire .
3.
YEL/GR N WIR E
EC T SENDIN G UNI T
Turn th e ignitio n switc h O N (II) . Chec k tha t th e
pointe r o f th e EC T gaug e start s movin g towar d th e
"H " mark .
CAUTION : Tur n th e ignitio n switc h OF F befor e th e
pointe r reache s "H " o n th e gaug e dial . Failur e t o d o
s o ma y damag e th e gauge .
I f th e pointe r o f th e gaug e doe s no t mov e a t all ,
chec k fo r a n ope n in th e YEL/GR N wire .
I f th e wire s ar e OK , replac e th e EC T gauge .
I f th e EC T gaug e works , tes t th e EC T sendin g
unit.
ECT Sendin g Uni t Tes t
1. Disconnec t th e YEL/GR N wir e fro m th e EC T sendin g
unit .
ECT SENDIN G UNI TYEL/GR N WIR E
2.
POSITIV E TERMINA L
Using a n ohmmeter , measur e th e chang e i n resis -
tanc e betwee n th e positiv e termina l an d th e engin e
(ground ) wit h th e engin e col d an d wit h th e engin e
at operatin g temperature .
3. I f th e obtaine d reading s ar e substantiall y differen t
from th e specification s above , inspec t th e coolan t
leve l an d th e coolin g system . I f th e coolin g syste m
i s OK , replac e th e sendin g unit .
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Brake System Indicator

Parking Brake Switch Test

1. Remove the center console, and disconnect the con-

nector from the switch.

2. Check for continuity between the terminal and body

ground in each switch position according to the table.

BRAKE LEVER

BODY

GROUND

POSITIVE

TERMINAL

NOTE (Canada): If the parking brake switch is OK,

but the brake system indicator does not function,

perform the input test for the daytime running

lights control unit.
Brake Fluid Level Switch Test

1. Remove the reservoir cap. Check that the float

moves up and down freely; if it doesn't, replace the

reservoir cap assembly.

2. Check for continuity between the terminals in each

switch position according to the table.

RESERVOIR CAP

FLOAT

Switch contacts closed

when float drops.

Switch contacts open at

proper fluid level.
UP POSITION
MAGNET
DOWN POSITION

DOWN
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Interlock Syste m
Componen t Locatio n Inde x
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 in th e SR S
(sectio n 24 ) befor e performin g repair s o r service .
A/T GEA R POSITIO N INDICATO R
Se e pag e 23-11 5
A/ T GEA R POSITIO N SWITC H
Test , pag e 23-14 6
INTERLOC KCONTROLUNITInpu t Test , pag e 23-13 0 KE
Y INTERLOC K SOLENOI D
an d KE Y INTERLOC K SWITC H
(I n th e steerin g loc k assembly )
Test , pag e 23-13 2
SHIF T LOC K SOLENOI D
Test , pag e 23-13 2
Replacement , pag e 23-13 3
PARKING PI N SWITC H
Test , pag e 23-13 4
Replacement , pag e 23-13 4
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Description

The car is equipped with the following devices to prevent inadvertent shifting:

Key cylinder with interlocked ignition key (Key Interlock System)

Shift lever with shift lock (Shift Lock System)

Key Interlock System:

When the shift lever is in any other position than or is not securely locked in (parking pin switch is ON), a solenoid is

activated, making it impossible to remove the ignition key from the ignition switch.

To be able to remove the key, the shift lever must be in and must be securely locked in this position (parking pin switch

must be turned off by the lock pin).

INTERLOCK LEVER

KEY

INTERLOCK

SOLENOID

ON: LOCK

OFF: UNLOCK
PUSH

KEY

INTERLOCK

SWITCH

The shift lever is in any other position than , and the parking pin switch is ON:

LOCK

SOLENOID

(ON)

The shift lever is in , and the parking pin switch is OFF.

UNLOCK

SOLENOID

(OFF)
PARKING PIN

SWITCH

ARM

PARKING PIN SWITCH

(ON)

PARKING PIN

SWITCH

ARM

PARKING PIN SWITCH

(OFF)
SHIFT LEVER

Shift lever pushed

to the right

SHIFT LEVER

(Shift lever released)

KEY CYLINDERProCarManuals.com

Interlock System

Description (cont'd)

Shift Lock System:

The shift lock system prevents the shift lever from moving to another position than [P] unless you step on the brake pedal

and the accelerator is in its rest position.

NOTE:

The shift lever cannot be shifted when the brake pedal and the accelerator are depressed at the same time.

In case of system malfunction, the shift lever can be released by pushing a key into the release slot near the shift lever.

SHIFT LEVER
SHIFT LEVER

SHIFT LOCK SOLENOID

(OFF: LOCK)
SHIFT LOCK SOLENOID

(ON: UNLOCK)

SHIFT LOCK STOP LEVER
SHIFT LOCK STOP LEVER

KEY

RELEASE LEVER

SHIFT LOCK STOP LEVERProCarManuals.com

Interlock Syste m
Contro l Uni t Inpu t Tes 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 service .
1 . Disconnec t th e 8 P connecto r fro m th e interloc k contro l unit .
2 . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
I f th e terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
— If a tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , substitut e a known-goo d contro l unit , an d rechec k th e system . I f th e chec k i s OK ,
th e contro l uni t mus t b e faulty ; replac e it .
NOTE : I f th e shif t loc k solenoi d click s whe n th e ignitio n switc h i s turne d O N (II ) an d yo u ste p o n th e brak e peda l (wit h
the shif t leve r i n ) , th e shif t loc k syste m is electronicall y normal ; i f th e shif t leve r canno t b e shifte d fro m , test th e
A/ T gea r positio n switc h a s describe d o n pag e 23-146 , an d se e sectio n 14 .
INTERLOC K CONTRO L UNI T
8P CONNECTO R
WIRE SID E O FFEMAL E TERMINAL S
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WIRE SID E O F FEMAL E TERMINAL S
Shift Loc k Syste m
Trm l Wir e Test conditio n Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
2
3
6
WHT/GR N
GRN
BLK/BL U
Ignition switc h O N (II )
Brak e peda l pushe d
Ignitio n switc h O N (II )
Brak e peda l an d
accelerato r pushe d a t th e
sam e tim e
Ignitio n switc h O N (II )
Shif t leve r i n Chec
k fo r voltag e t o ground :
Ther e shoul d b e abou t 1 2 V .
Chec k fo r voltag e t o ground :
Ther e shoul d b e 1 V or less .
Chec k fo r voltag e t o ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity . •
Blow n No . 3 0 (2 0 A ) fus e in th e
under-hoo d fuse/rela y bo x
• Fault y TC M
• Fault y brak e switc h (se e pag e
23-184 )
• Fault y throttl e positio n (TP ) senso r
(se e sectio n 11 )
• A n ope n i n th e wir e
• Blow n No . 1 (1 0 A ) fus e in th e
under-das h fuse/rela y bo x
• Fault y shif t loc k solenoi d
• A n ope n i n th e wir e
• Fault y A/ T gea r positio n switc h
• Poo r groun d
• A n ope n i n th e wir e
Ke y Interloc k Syste m
Trm l Wir e Tes t conditio n Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
1
5
4
6
8
WHT/RE D
WHT/BLU
BLK
BLK/BL U
WHT/BL K
Ignition switc h turne d
to AC C (I ) an d ke y
pushe d i n
Unde r al l condition s
Shift leve r i n
Shif t leve r i n an d
pushed to th e righ t
Shift leve r i n an d
release d
Check fo r voltag e t o ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r continuit y t o ground :
Ther e shoul d b e n o continuity .•
Blow n No . 3 0 (2 0 A ) fus e in th e
under-hoo d fuse/rela y bo x
• Fault y steerin g loc k assembl y (ke y
interloc k solenoid )
• A n ope n i n th e wir e
• Poo r groun d (G401 , G404 )
• A n ope n i n th e wir e
• Fault y A/ T gea r positio n switc h
• Poo r groun d
• A n ope n i n th e wir e
• Fault y parkin g pi n switc h
• Poo r groun d (G401 , G404 )
• A n ope n in th e wir e
• Fault y parkin g pi n switc h
• Shor t t o groun d
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