ACURA TL 1995 Service Repair Manual

Ignition Switc h
Test
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
SR S (sectio n 24 ) befor e performin g repair s o r service .
1 . Remov e th e dashboar d lowe r cove r an d kne e bolster .
KNEEBOLSTE R
DASHBOAR D LOWE R COVE R
2. Remov e th e lef t fron t doo r sil l moldin g an d th e lef t
kic k panel .
3 . Disconnec t th e switc h harnes s 7 P connecto r fro m th e
under-das h fuse/rela y box .
7P CONNECTO R
LEF T KIC K PANE L
4. 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 .
7P CONNECTO R
WIR E SID E O F
FEMAL E TERMINAL S
5. I f th e continuit y check s d o no t agre e wit h th e table ,
chec k fo r a ba d connectio n betwee n th e switc h an d
switc h harness .
I f th e connectio n is OK , replac e th e switch .
I f th e connectio n isn' t OK , repai r a s necessary ,
an d recheck . I f continuit y check s stil l d o no t agre e
wit h th e table , replac e th e switch .
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Steering Loc k Replacemen t
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
SR S (sectio n 24 ) befor e performin g repair s o r service .
Removal :
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
then writ e dow n th e frequencie s fo r th e radio' s pre -
set buttons .
2. Disconnec t th e batter y negativ e cable , the n disconnec t
th e positiv e cable , an d wai t a t leas t thre e minutes .
3 . Remov e th e dashboar d lowe r cove r an d kne e bolster .
KNEEBOLSTE R
DASHBOARD LOWE R COVE R
4. Remov e th e steerin g colum n covers .
STEERIN G COLUM NUPPER COVE R
STEERIN GCOLUMNLOWERCOVER
5. Disconnec t th e connector s fro m th e switch .
SWITCH
HARNES S
IGNITIO N SWITC H
7 P CONNECTO R7
P CONNECTO R
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Ignition Switch

Steering Lock Replacement (cont'd)

6. Remove the column holder mounting bolts and nuts.

16 N-m

(1.6 kgf-m, 12 Ibf-ft)

COLUMN

HOLDER
38 N-m

(3.9 kgf-m, 28 Ibf-ft)

7. Lower the steering column assembly.

8. Center-punch each of the two shear bolts, and drill

their heads off with a 5 mm (3/16 in) drill bit.

CAUTION: Do not damage the switch body when

removing the shear bolts.

9. Remove the shear bolts from the switch body, then

remove the steering lock assembly.
Installation:

1. Install the new ignition switch without the key

inserted.

2. Loosely tighten the new shear bolts.

3. Insert the ignition key, and check for proper opera-

tion of the steering wheel lock and that the ignition

key turns freely.

4. Tighten the shear bolts until the hex heads twist off.

SHEAR BOLT

TWIST-OFF PORTION

5. Install in the reverse order of removal.

6. Enter the anti-theft code for the radio, then enter the

customer's radio station presets.ProCarManuals.com

Electrical Switc h Replacemen t
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 .
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 batter y negativ e cable , the n discon -
nec t th e positiv e cable , an d wai t a t leas t thre e min -
utes .
3 . Remov e th e dashboar d lowe r cove r an d kne e bolste r
(se e pag e 23-67 ).
4 . Remov e th e steerin g colum n cover s (se e pag e 23-67 ).
5 . Disconnec t th e connector s fro m th e switch .
SWITCHHARNES S
IGNITION SWITC H7PCONNECTO R
7 P CONNECTO R
6. Remov e th e colum n holde r mountin g bolt s an d nut s
(se e pag e 23-68 ).
7 . Lower the steerin g colum n assembly .
8 . Center-punc h eac h o f th e tw o shea r bolts , an d dril l
their head s of f wit h a 5 mm (3/1 6 in ) dril l bi t (se e
pag e 23-68 ).
CAUTION : D o no t damag e th e switc h bod y whe n
removin g th e shea r bolts .
9 . Remov e th e shea r bolt s fro m th e switc h body , the n
remov e th e steerin g loc k assembly .
10 . Remov e th e thre e screws , an d replac e th e electrica l
switch .
ELECTRICA LSWITCH
11. Instal l i n th e revers e orde r o f remova l (se e pag e
23-6 8 fo r steerin g loc k installation) .
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Starting Syste m
Componen t Locatio n Inde x
CRUIS E CONTRO LUNIT
SECURIT Y CONTRO L UNI T
(Locate d behin d glov e box )
Inpu t Test , pag e 23-28 3
BATTER YTest, pag e 23-6 0
STARTE R CU TRELA YWire colors :
BLK/GRN , BLK/WH T
YEL/GR N an d BLK/GR N
Test , pag e 23-6 3
A/ T GEA R POSITIO N SWITC H
Test , pag e 23-14 6
Replacement , sectio n 1 4
STARTE RTest, pag e 23-7 2
Solenoi d Test , pag e 23-7 3
Replacement , pag e 23-7 4
Overhaul , pag e 23-7 5
Reassembly , pag e 23-7 9
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Starting Syste m
Starter Tes t
NOTE : Th e ai r temperatur e mus t b e betwee n 5 9 an d
100° F (1 5 an d 38°C ) befor e testing .
Recommende d Procedure :
Use a starte r syste m tester .
Connec t an d operat e th e equipmen t i n accordanc e
wit h th e manufacturer' s instructions .
Tes t an d troubleshoo t a s described .
Alternate Procedure :
Use followin g equipment :
— Ammeter , 0 - 400 A
— Voltmeter , 0 - 20 V (accurat e withi n 0. 1 volt )
— Tachometer , 0 - 1,20 0 rp m
Hoo k u p a voltmete r an d ammete r a s shown .
NEGATIV ETERMINA L
NOTE: Afte r thi s test , o r an y subsequen t repair , rese t
th e EC M to clea r an y code s (se e sectio n 11 ).
Chec k th e Starte r Engagemen t
1 . Disconnec t th e 4 P connecto r fro m th e ignitio n coil .
IGNITIO N COI L
4P CONNECTO R
2. Wit h th e shif t leve r i n o r , turn th e ignitio n
switch to STAR T (III) .
Th e starte r shoul d cran k th e engine . I f th e starte r
doe s no t cran k th e engine , g o to ste p 3 .
I f i t crank s th e engin e erraticall y o r to o slowly , g o
t o "Chec k fo r Wea r an d Damage " o n th e nex t
page .
3. Chec k th e battery , batter y positiv e cable , ground ,
starte r cu t relay , securit y contro l unit , an d th e wir e
connection s fo r loosenes s an d corrosion . Tes t again . I f
th e starte r stil l doe s no t cran k th e engine , g o to ste p 4 .
4 . Unplu g th e connecto r (BLK/WH T wir e an d solenoi d
terminal ) fro m th e starter . Mak e sur e th e shif t leve r
is i n o r , then connec t a jumpe r wir e fro m th e
batter y positiv e (+ ) termina l t o th e solenoi d termi -
nal . Th e starte r shoul d cran k th e engine .
I f th e starte r stil l doe s no t cran k th e engine , remov e
it , an d diagnos e it s interna l problem .
I f th e starte r crank s th e engine , g o t o ste p 5 an d
continu e th e test .
5 . Chec k th e ignitio n switc h (se e pag e 23-66 ).
6 . Chec k th e starte r cu t rela y (se e pag e 23-63 ).
7 . Chec k th e A/ T gea r positio n switc h (se e pag e 23-146 ).
8 . Chec k th e securit y contro l uni t (se e pag e 23-283 ).
9 . Chec k fo r a n ope n in th e BLK/GR N wir e betwee n th e
ignitio n switc h an d starte r cu t relay , an d chec k fo r
a n ope n i n th e BLK/WH T wir e betwee n th e starte r
cu t rela y an d starter .
SOLENOI DTERMINA LWIRE
BLK/WH TWIRE
S (SOLENOID ) TERMINA L
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Check for Wear and Damage

The starter should crank the engine smoothly and steadily.

If the starter engages, but cranks the engine erratically,

remove it, and inspect the starter drive gear and torque

converter ring gear for damage.

Check the drive gear overrunning clutch for binding or

slipping when the armature is rotated with the drive

gear held. If the clutch is damaged, replace the clutch

assembly.

Check Cranking Voltage and Current Draw

Cranking voltage should be no less than 8.5 volts.

Current draw should be no more than 380 amperes.

If cranking voltage is too low, or current draw too high,

check for:

Dead or low battery

Open circuit in starter armature commutator segments

Starter armature dragging

Shorted armature winding

Excessive drag in engine

Check Cranking rpm

Engine speed during cranking should be above 100 rpm.

If speed is too low, check for:

Loose battery or starter terminals

Excessively worn starter brushes

Open circuit in commutator segments

Dirty or damaged helical spline or drive gear

Defective drive gear overrunning clutch

Check Starter Disengagement

With the shift lever in turn the ignition switch to

"START (III)", and release to "ON (II)". The starter drive

gear should disengage from the drive plate/ring gear

when you release the key.

If the drive gear hangs up on the drive plate/ring gear,

check for:

• Solenoid plunger and switch malfunction

• Dirty drive gear assembly or damaged overrunning

clutchProCarManuals.com

Starter Solenoid Test

1. Make sure you have the anti-theft code for the

radio, then write down the frequencies for the

radio's preset buttons.

2. Disconnect the battery negative cable, then discon-

nect the positive cable.

3. Check the hold-in coil for continuity between the S

terminal and the armature housing (ground). The

coil is OK if there is continuity.

4. Check the pull-in coil for continuity between the S and

M terminals. The coil is OK if there is continuity.ProCarManuals.com

Starting Syste m
Starter Replacemen t
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 batter y negativ e cable , the n disconnec t
th e positiv e cable .
3 . Remov e th e rea r intak e manifol d bracket .
4 . Disconnec t th e starte r cabl e fro m th e B termina l o n
th e solenoid , the n disconnec t th e BLK/WH T wir e
fro m th e S (SOLENOID ) termina l wire .
UPPE R MOUNTIN G BOL T
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
BLK/WHT WIR E
B TERMINA L
MOUNTING NU T
S (SOLENOID ) TERMINA LWIRE
B TERMINA L
LOWER MOUNTIN G
STARTER BOL T
CABL E 6 4 N- m
(6. 5 kgf-m , 4 7 Ibf-ft )
REAR INTAK E
MANIFOL DBRACKET
5. Remov e th e tw o bolt s holdin g th e starter , the n
remov e th e starter .
6 . Instal l i n th e revers e orde r o f removal .
NOTE : Whe n installin g th e starte r cable , mak e sur e
tha t th e crimpe d sid e o f th e rin g termina l i s facin g out .
Crimpe d sid e o f rin gtermina l
NUT
TERMINA L
7. Connec t th e batter y positiv e cabl e an d negativ e cabl e
t o th e battery .
8 . Ente r th e anti-thef t cod e fo r th e radio , the n ente r th e
customer' s radi o statio n presets .
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Starter Overhau l
CAUTION: Befor e removin g th e starter , disconnec t th e
negativ e cabl e fro m th e battery .
STARTE R
SOLENOI D
SOLENOI D
LEVER
STARTE RSOLENOI DTest, pag e 23-7 3
OVERRUNNIN GCLUTCH ASSEMBL Y
RUBBE R SEA L
MOLYBDENU M
DISULFID E
TERMINA L COVE R
BRUSH HOLDE R
Test , pag e 23-7 8
ARMATUR EInspection an d
Test , pag e 23-7 6
ARMATUR E HOUSIN G
wit h PERMANEN T
MAGNET
GEAR HOUSIN G
VEN T
TUBE
S TERMINA L WIR E
GEAR HOUSIN G
COVER
OVERRUNNIN GCLUTCH ASSEMBL YInspection, pag e 23-7 9
GASKE
T
BRUSH HOLDE R
ARMATUR E
SOLENOIDLEVER
BRUS HInspection ,
pag e 23-7 8
BRACKE T
END COVE R
MOLYBDENU MDISULFIDE
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