1995 ACURA TL jump start

Powertrain Control Module (PCM)

NOTE: If this symptom is intermittent, check for a loose fuse No. 1 (BACK UP

LIGHTS, METER LIGHTS, 10 A) in the under-dash fuse/relay box, a poor con-

nection at PCM terminal A7, or an intermittent open in the GRN/RED wire

between the PCM (A7) and the gauge assembly.

Is the low oil pressure light on?

Try to start the engine.

Does the engine start?

Check for an open in the wire or

bulb (MIL line):

1. Turn the ignition switch OFF.

2. Connect the PCM connector ter-

minal A7 to body ground with a

jumper wire.

3. Turn the ignition switch ON (II).

Is the MIL on?

Substitute a known-good PCM,

and recheck. If symptom/indica-

tion goes away, replace the origi-

nal
PCM.
— Repair short or open in the

wire between NO. 1 (BACK-UP

LIGHTS, METER LIGHTS) (10

A) fuse and gauge assembly.

— Replace No. 1 (BACK-UP

LIGHTS, METER LIGHTS) (10 A)

fuse.

PCM CONNECTOR A (26P)

Check for an open in the wires

(PG1, PG2 lines):

1. Turn the ignition switch ON (II).

2. Measure voltage between

body ground and PCM con-

nector terminals A12 and A25

individually.
Wire side of female terminals

Is there less than 1.0 V?
Repair open in the wire(s)

between PCM and G101 (located

at intake manifold) that had

more than 1.0 V.

PCM CONNECTOR A (26P)

JUMPER WIRE

Wire side of female terminals
Repair open in the wires

between PCM (A7) and gauge

assembly.

Replace the MIL bulb.
Substitute a known-good PCM

and recheck. If symptom/indica-

tion goes away, replace the origi-

nal
PCM.
Turn the ignition switch ON (II).
The Malfunction Indicator Lamp

(MIL) never comes on (even for

two seconds) after ignition is

turned on (II).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 .
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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 i n th e under-das h fuse /
rela y bo x befor e testing .
2 . Remov e th e engin e cover .
3 . 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 .
4. Tur n 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 to 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.
4. I f th e obtaine d reading s ar e substantiall y differen t
fro m 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 .
3
. Usin g 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 engine
(ground ) wit h th e engin e col d an d wit h th e engin e
a t operatin g temperature .
ECT Sendin g Uni t Tes t
1. Remov e th e engin e cover .
2 . Disconnec t th e YEL/GR N wir e fro m th e EC T sendin g
unit.
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PGM-FI System

Engine Control Module (ECM)

Is the low oil pressure light on?

Try to start the engine.

Does the engine start?

Check for an open in the wire or

bulb (MIL line):

1. Turn the ignition switch OFF.

2. Connect the ECM connector ter-

minal A7 to body ground with a

jumper wire.

3. Turn the ignition switch ON (II).
NOTE: If this symptom is intermittent, check for a loose fuse No. 1 (BACK UP

LIGHTS, METER LIGHTS, 10 A) in the under-dash fuse/relay box, a poor con-

nection at ECM terminal A7, or an intermittent open in the GRN/RED wire

between the ECM (A7) and the gauge assembly.

Is the MIL on?

Substitute a known-good ECM

and recheck. If symptom/indica-

tion goes away, replace the origi-

nal
ECM.
— Repair short in the wire

between NO. 1 (BACK-UP

LIGHTS, METER LIGHTS) (10

A) fuse and gauge assembly.

— Replace No. 1 (BACK-UP

LIGHTS, METER LIGHTS) (10 A)

fuse.

Check for an open in the wires

(PG1, PG2 lines):

1. Turn the ignition switch ON (II).

2. Measure voltage between

body ground and ECM con-

nector terminals A12 and A25

individually.

Is there less than 1.0 V?

Repair open in the wires

between ECM (A7) and gauge

assembly.

Replace the MIL bulb.
ECM CONNECTOR A (26P)

Wire side of female terminals

Repair open in the wire(s)

between ECM and G101 (located

at left side of engine) that had

more than 1.0 V.

ECM CONNECTOR A (26P)

Wire side of female terminals
The Malfunction Indicator Lamp

(MIL) never comes on (even for

two seconds) after ignition is

turned on.

Turn the ignition switch ON (II).

JUMPER WIREProCarManuals.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 :
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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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 .
ProCarManuals.com

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 .
ProCarManuals.com