ACURA TL 1995 Service Repair Manual

Power Relay s
Relay Tes t
NOTE : Refe r t o page 23-62 in the '9 5 - 9 6 Acur a 2.5T L
Service Manual, P/ N 61SW500 , fo r th e item s no t shown
in this sub-section .
Normally-ope n type :
1 . Chec k fo r continuit y betwee n th e terminals .
• Ther e shoul d b e continuit y betwee n th e No . 1 an d
No . 3 terminal s whe n powe r an d groun d ar e con -
necte d to th e No . 2 an d No . 4 terminals .
• Ther e shoul d b e n o continuit y betwee n th e No . 1
an d No . 3 terminal s whe n powe r i s disconnected .
• Powe r windo w rela y
• Blowe r moto r rela y
• Windshiel d wipe r rela y
• Tailligh t rela y •
A/ T revers e rela y
• Sea t heate r rela y
• TC S fail-saf e rela y
• Fo g ligh t rela y
ProCarManuals.com

Normally-closed Type :
1 . Chec k fo r continuit y betwee n th e terminals .
• Ther e shoul d b e n o continuit y betwee n th e No . 1
an d No . 3 terminal s whe n powe r an d groun d ar e
connecte d to th e No . 2 an d No . 4 terminals .
• Ther e shoul d b e continuit y betwee n th e No . 1 an d
No . 3 terminal s whe n powe r i s disconnected .
• Lo w bea m cu t rela y (Canada )
23-59
ProCarManuals.com

Starting Syste m
Componen t Locatio n Inde x
SECURIT Y CONTRO L UNI T
(Locate d behin d glov e box )
Inpu t Test , pag e 23-15 1
A/T GEA R POSITIO N SWITC H
Test , pag e 23-10 9
BATTER YTest, pag e 23-5 6
STARTE RTest, pag e 23-6 2
Solenoi d Test , pag e 23-6 3
Replacement , pag e 23-6 4
Overhaul , pag e 23-6 5
Reassembly , pag e 23-6 9
Test
, pag e 23- 63
ProCarManuals.com

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 :
• Us e 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 .
Alternat e Procedure :
• Us e followin g equipment :
Ammeter, 0 -40 0 A
Voltmeter , 0 -2 0 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 .
NOTE : Afte r thi s test , o r an y subsequen t repair , rese t
th e PC 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 8 P an d 6 P connecto r fro m th e ICM .
2. Wit h th e shif t leve r i n tur n th e ignitio n
switch t o 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 the n 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 switch .
6. Chec k th e starte r cu t relay .
7 . Chec k th e A/ T gea r positio n switc h (se e pag e 23-109 ).
8 . Chec k th e securit y contro l unit .
9. Chec k fo r a n ope n i n th e WHT/RE D 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 .
ProCarManuals.com

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 8.0 volts.

Current draw should be no more than 450 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 or , turn the ignition switch to

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

gear should disengage from the flywheel ring gear when

you release the key.

If the drive gear hangs upon the flywheel 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.

PULL-IN COIL HOLD-IN COILProCarManuals.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 lef t driv e shaft .
4 . Remov e th e exhaus t pip e A .
5 . 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 . 6
. Remov e th e tw o bolt s holdin g th e starter , the n
remov e th e starter .
7 . 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 .
8 . Connec t th e batter y positiv e cabl e an d negativ e cabl e
t o th e battery .
9 . 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 .
ProCarManuals.com

Starter Overhau l
CAUTION: Befor e removin g th e starter , disconnec t th e
negativ e cabl e fro m th e battery .
BRUSH HOLDE R
Test , pag e 23-6 8
BRUSH
Inspection , pag e 23-6 8
OVERRUNNIN G CLUTC H ASSEMBL Y
Inspection , pag e 23-6 9
ARMATUR
E
Inspection an d Test ,page 23-6 6
ProCarManuals.com

Starting Syste m
Armatur e Inspectio n an d Tes t
1. Inspec t th e armatur e fo r wea r o r damag e du e to con -
tact wit h th e permanen t magnet . I f ther e i s wea r o r
damage , replac e th e armature .
2 . Chec k commutato r surfac e an d diameter .
• I f th e surfac e is dirt y o r burnt , resurfac e wit h emer y
clot h o r a lath e withi n th e followin g specifications ,
o r reconditio n wit h #50 0 o r #60 0 sandpaper .
• I f commutato r diamete r i s belo w th e servic e limit ,
replac e th e armature .
3 . Measur e th e commutato r runout .
• I f th e commutato r runou t i s withi n th e servic e
limit , chec k th e commutato r fo r carbo n dus t o r
bras s chip s betwee n th e segments .
• I f th e commutato r runou t i s no t withi n th e ser -
vic e limit , replac e th e armature .
ProCarManuals.com

4. Chec k fo r mic a depth . I f necessary , undercu t th e mic a
wit h a hacksa w blad e t o achiev e prope r depth . I f th e
servic e limi t canno t b e maintained , replac e th e arma -
ture . 6
. Plac e th e armatur e o n a n armatur e tester . Hol d a
hacksa w blad e o n th e armatur e core . I f th e blad e is
attracte d t o th e cor e o r vibrate s whil e th e cor e i s
turned , th e armatur e is shorted . Replac e th e arma -
ture.
7. Chec k wit h a n ohmmete r tha t n o continuit y exist s
betwee n th e commutato r an d armatur e coi l core ,
an d betwee n th e commutato r an d armatur e shaft . I f
continuit y exists , replac e th e armature .
5
. Chec k fo r continuit y betwee n th e segment s o f th e
commutator . I f a n ope n circui t exist s betwee n an y
segments , replac e th e armature .
ProCarManuals.com