1995 ACURA TL fuse box

Precautions/Procedures
Wiring Precaution s
• Neve r attemp t t o modify , splic e o r repai r SR S wiring .
NOTE : SR S wirin g ca n b e identifie d b y specia l yello w
oute r covering .
• B e sur e to instal l th e harnes s wire s s o tha t the y ar e no t
pinche d o r interferin g wit h othe r parts .
Mak e sur e al l SR S groun d location s ar e clea n an d
ground s ar e securel y fastene d fo r optimu m metal-to -
meta l contact . Poo r groundin g ca n caus e intermitten t
problems tha t ar e difficul t t o diagnose .
Disconnectin g th e SR S Connecto r a t th e Under-das h
Fuse/Relay Box :
CAUTION : Avoi d breakin g th e connector ; it' s double -
locked.
1. Firs t lif t th e connecto r li d wit h a thi n screwdriver , the n
pres s th e connecto r ta b down , an d pul l th e connecto r
out.
UNDER-DAS H FUSE/RELA Y BO X
SRSMAI NHARNES S
TAB
2. T o reinstal l th e connector , pus h it int o positio n unti l i t
clicks , the n clos e it s lid .
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Engine Removal/Installation

Removal (cont'd)

7. Remove the battery cables from the under-hood fuse/

relay box.

BATTERY

CABLES

8.

9.
UNDER-HOOD

FUSE/RELAY BOX

Disconnect the engine wire harness connector on

the right (passenger's) side of the engine compart-

ment.

Remove the battery cable from the under-hood ABS

fuse/relay box.

BATTERY

CABLE

ENGINE WIRE

HARNESS

UNDER-HOOD ABS

FUSE/RELAY BOX
10. Remove the intake air duct and vacuum hose.

INTAKE AIR

DUCT

11.
VACUUM

HOSE

Remove the adjusting bolt, locknut and mounting

bolt, then remove the power steering (P/S) pump

belt and pump.

MOUNTING BOLT

10 x
1.25
mm

49 N-m (5.0 kgf-m, 36 Ibf-ft)

ADJUSTING

BOLT

P/S PUMP

BELT

LOCKNUT

8 x
1.25
mm

22 N-m (2.2 kgf-m,

16 Ibf-ft)ProCarManuals.com

II. Engine Control Module (ECM) Reset Procedure

Either of the following actions will reset the ECM.

• Use the OBD II scan tool or Honda PGM Tester to clear the ECM's memory.

NOTE: See the OBD II scan tool or Honda PGM Tester user's manuals for specific operating instructions.

• Turn the ignition switch OFF. Remove the BACK UP RADIO (10 A) fuse from the under-hood fuse/relay box for

10 seconds.

BACK UP RADIO

(10 A) FUSE

UNDER-HOOD

FUSE/RELAY

BOX

III. Final Procedure (this procedure must be done after any troubleshooting)

1. Remove the SCS Service Connector if it is connected.

NOTE: If the SCS service connector is connected and there are no DTCs stored in the ECM, the MIL will stay

on when the ignition switch is turned ON (II).

2. Do the ECM Reset Procedure.

3. Turn the ignition switch OFF.

4. Disconnect the OBD II scan tool or Honda PGM Tester from the Data Link Connector (16P).ProCarManuals.com

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

PGM-FI Syste m
Engine Contro l Modul e (ECM ) (cont'd )
(From pag e 11-53 )
Chec k fo r a shor t i n th e wir e (MI L
line) :1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e EC M connec -
to r A (26P) .
3. Tur n th e ignitio n switc h O N (II) .
Is th e MI L ON ?Repai r shor t t o bod y groun d i n
th e wir e betwee n th e EC M (A7 )
and MIL .
Substitut e a known-goo d EC M
an d recheck . I f symptom/indica -
tio n goe s away , replac e th e origi -
nal ECM .
(From pag e 11-53 )
I s th e fus e OK ? Repai
r shor t i n th e wir e
betwee n EC U (ECM ) (1 5 A )
fus e an d PGM-F I mai n relay .
Replac e EC U (ECM ) (1 5 A ) fuse .
Inspec t No . 2 FUE L PUM P (1 5 A )
fus e i n th e under-das h fuse/rela y
box.
Is th e fus e OK ? Repai
r shor t i n th e wir e
betwee n No . 2 FUE L PUM P
(1 5 A ) fus e an d PGM-F I mai nrelay .Replac e No . 2 FUE L PUM P(15A) fuse.
Chec k fo r a shor t i n a sensor :
1. Tur n th e ignitio n switc h ON .2. Disconnec t th e 3 P connecto r
o f eac h senso r on e a t time :
• T P senso r
• EG R valv e lif t senso r
• Fue l tan k pressur e senso r
('97-98 models )
(To pag e 11-55 )
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Starter Switc h Signa l
This signal s th e EC M whe n th e engin e is cranking .
NOTE: Transmissio n in o r position .
A (26P)ECM CONNECTOR S
Wir e sid e o t femal e terminal s
I s ther e batter y voltage ?
Is th e fus e OK ? Repai
r shor t i n th e wir e be -
twee n th e EC M (B5 ) an d th eNo . 9 STARTE R SIGNA L (7. 5
A ) fus e o r th e PGM-F I mai n
relay .Replac e th e No . 9 STARTE R
SIGNA L (7. 5 A ) fuse .
B (16P )
Inspectio n o f Starte r Switc h Sig -nal.
Chec k fo r a n ope n o r shor t i n th e
wir e (ST S line) :
Measur e voltag e betwee n EC M
connecto r terminal s B 5 an d A2 6on th e EC M connector s wit h th e
ignitio n switc h i n th e star t posi -
tion (III) .
Starte r switc h signa l i s OK . Inspec
t th e No . 9 STARTE R SIG -
NA L (7. 5 A ) fus e in th e under-das h
fuse/rela y box .
Repai r ope n in th e wir e betwee n
the EC M (B5 ) and th e No . 9STARTE R SIGNA L (7. 5 A ) fuse .
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Fuel Suppl y Syste m
PGM-F I Mai n Rela y (cont'd )
Troubleshootin g
Engine wil l no t start .
Inspectio n o f PGM-F I mai n
rela y an d rela y harness .
Chec k fo r a n ope n i n th e wir e
(GN D line) :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e PGM-F I mai n
rela y 7 P connector .
3 . Chec k fo r continuit y betwee n
th e PGM-F I mai n rela y 7 P con -
necto r termina l No . 3 an d bod y
ground .
I s ther e continuity ?
Chec k fo r a n ope n o r shor t i n th e
wir e (BA T line) :
Measur e voltag e betwee n th e
PGM-F I mai n rela y 7 P connecto r
termina l No . 7 an d bod y ground .
I s ther e batter y voltage ?
Chec k fo r a n ope n o r shor t i n th e
wir e (IG 1 line) :
1 . Tur n th e ignitio n switc h O N (II) .
2 . Measur e th e voltag e betwee n
th e PGM-F I mai n rela y 7 P con -
necto r termina l No . 5 an d bod y
ground .
I s ther e batter y voltage ?
Chec k fo r a n ope n o r shor t i n th e
wir e (ST S line) :
1. Tur n th e ignitio n switc h to th eSTAR T (III ) position .NOTE: Transmissio n i n o rposition .2. Measur e th e voltag e betwee n
th e PGM-F I mai n rela y 7 P con -
necto r termina l No . 2 an d bod y
ground .
(T o pag e 11-133 ) PGM-F
I MAI N RELA Y 7 P CONNECTO R (C417 )
Wir e sid e o f femal e terminal s
Repai r ope n in th e wir e betwee n
th e PGM-F I mai n rela y an d G101 .
Replac e th e EC U (ECM ) (1 5 A )
fus e i n th e under-hoo d fuse /
relay box .Repai r ope n o r shor t i n th e
wir e betwee n th e PGM-F I
mai n rela y an d th e EC U (ECM )
(1 5 A ) fuse .
Replac e th e No . 2 FUE L PUM P
(1 5 A ) fus e in th e under-das h
fuse/rela y box .
Repai r ope n o r shor t i n th e
wir e betwee n th e PGM-F I mai n
rela y an d th e No . 2 FUE L
PUM P (1 5 A ) fuse .
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(From pag e 11-132 )
I s ther e 1. 0 V or less ?
Replac e th e No . 9 STARTE RSIGNAL (7. 5 A ) fus e i n th e
under-das h fuse/rela y box .
Repai r ope n o r shor t i n th ewir e betwee n th e PGM-F I mai n
rela y an d th e No . 9 STARTE R
SIGNA L (7. 5 A ) fuse . PGM-F
I MAI N RELA Y 7 P CONNECTO R (C417 )
Wir e sid e o f femal e terminal s
Repai r ope n i n th e wir e betwee n
th e EC M (A4 ) an d th e PGM-F I
mai n relay .
ECM CONNECTOR S
Wir e sid e o f femal e terminal s
Repai r ope n i n th e wir e bet -
wee n th e EC M (A13 , B1 ) an d
th e PGM-F I mai n relay .
Replac e th e PGM-F I mai n relay .
ECM CONNECTO R A (26P )
Wir e sid e o f femal e terminal s
Substitut e a known-goo d EC M
an d recheck . I f prescribe d voltag e
i s no w available , replac e th e orig -
ina l ECM .
Chec k th e PGM-F I mai n rela y
(se e pag e 11-131 ).
Chec
k fo r a n ope n in th e ECM :
1. Tur n th e ignitio n switc h OFF .2. Measur e voltag e betwee n EC M
connecto r terminal s A 4 an d
A12 whe n th e ignitio n switc his firs t turne d O N (II ) fo r tw o
seconds .
I
s ther e batter y voltage ?
Chec
k fo r a n ope n i n th e wire s
(IGP1 , IGP 2 lines) :
1 . Reconnec t th e EC M connecto r
A (26P) .2. Reconnec t th e PGM-F I mai n
rela y connector .
3 . Tur n th e ignitio n switc h O N (II) .
4 . Measur e voltag e betwee n EC M
connecto r terminal s A1 2 an d
A13 , an d betwee n A1 2 an d B1 .
I
s ther e continuity ? EC
M CONNECTO R A (26P )
B (16P)A (26P )
Wire sid e o f femal e terminal s
Chec
k fo r a n ope n i n th e wir e
(FL R line) :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e EC M connec -
tor A (26P) .3. Chec k fo r continuit y betwee n
th e PGM-F I mai n rela y 7 P con -
necto r termina l NO . 1 an d EC M
connecto r termina l A4 .
Is ther e batter y voltage ?
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