1998 ACURA INTEGRA Engine

Circuit ldentification for In'Line and Fuse Box Connectors
tuse the chart (on page 204, sample below) to help diagnose multiple symptoms in separate
circuits which could be caused by a single problem in a connect,oishared by those circuits'
Here's how that chart could help you find such a problem:
1. Pick one of the multiple symptoms and look up the schematic for that circuit'
2. Make a list of all in-lrne and fuse box connectors in that schematic (include page numbers).
3. Then, in the chart, look up each connector on your list to see if circuits related to the other
symptoms run through one of them. lf they do, inspect that connector for the problem.
Example: The horn, A,/C, and the right headlight don't work. List all in-line and fuse box
connectors in the horn circuit and then check the chart (sample below). You find that C211 is
common to the A,/C circuit and the headlight circuit, so you inspect c211 and find the problem:
bent terminals.
)Connector
(6 or more
cavities)
Numbel of
Cavities - Color
1O-GRY
I 12-GRY
I
Wire
Harnesses
I Main/ | ComP er 'ror c.ntrols,
I Dashboard I
Circuits
Ant!lock brake system (ABS), Cruise control,
Programmed {uel injection system (PGM-FD
!ngrnei
lvlain
lgnition system
Antilock brake system (ABS), BIower controls, Fans,
Wiper/washer
lgnition system, Starting system
Blower controls, Compressor controls, Headlights'
Horns, Vehicle speed sensor (VSS), Wiper/washer
Programmed fuel injection system (PGM-Fl)'
Starting system
Engine/ |Main I
)

How To Use This Manual
Test Equipment
lf, in addition, you need to know exactly how
much resistance there is between two ooints.
use a digital volVohmmeter (DVOM).
In the "oHMS" range, the DVOM will show
resistance between two points along a circuit.
Low resistance means good continuity.
Diodes and solid-state devices in a circuit can
make a DVOM give a false reading. To check
a reading, reverse the leads, and take a
second reading. lf the readings differ, the
component is affecting the measurement.
Jumper Wire
Use a jumper wire to bypass an open circuit.
A jumper wire is made up of an in-line f use
holder connected to a set of test leads. lt
should have a tive ampere fuse. Never
connect a jumper wire across a short circuit.
The direct battery short will blow the fuse.
Short Finder (Short Circuit Locater)
Shoft linders are available to locate shorts to
ground. The short finder creates a pulsing
magnetic field in the shorted circuit which you
can follow to the location of the short. lts use
is explained on page 15.
SHORT FINDER
To order any test equipment shown above,
contact your local tool supplier. For a list of
suppliers and tool numbers, refer to Acura
Required Special Tools and Equipment
Service Bulletin.
Troubleshooting Precautions
Before Troubleshooting
1. Check the main fuse and the fuse box.
2. Check the battery for damage. state of
charge, and clean and tight connections.
CAUTION:
. Do not quick-charge a battery unless
the battery ground cable has been
disconnected, or you will damage the
alternator diodes.
. Do not attempt to crank the engine with
the ground cable disconnected or you
will severely damage the wiring.
While You're Working
1. Make sure connectors are clean, and have
no loose terminals or receotacles.
2. Make sure multiple terminal connectors are
packed with dielectric (silicone) grease.
Part Number: 08798-9001 .
Pack with dielectric (silicone) grease
When connecting a connector, push it until it
clicks into olace.
Do not pull on the wires when
disconnecting a connector. Pull
only on the connector housings.
Most circuits include solid-state
devices. Test the voltages in these
circuits only with a 1o-megaohm or
higher impedance digital multimeter.
Never use a test light or analog meter
on circuits that contain solid-state
devices. Damage to the devices
may result.
Qr(
l"(

- Under-hood Fuse/Relay Box
Front View
T102Oo engine wire harness)
*: Not Used
Rear View
c2l5To main wire harness
T1[ro battery)
c905[ro F/Ccompressor)clutch relay)
c2t8[fo main wire harness)Oo main
(cont'd)
D3
tr
tr
[J
r'1
IJ
r-t
IJ
r'151
LI
r-156
IJ
r"l57
LI
Llowire harness)
6-3

Ground-to-Components I ndex
NOTE: All ground wires are BLK unless otherwise noted.
GroundPageComponents or Circuit Grounded
Battery (BLIVYEL)
--t'I Valve cover (BRN)
G101t.+
and
14-1
Daia link connector (BRN/BLK), Engine or powertrain controt module (pct and pG2
are BLK; LG1 and LG2 are BRN/BLR, IAB controt solenoid valve (GS-B),
lmmobilizer receiver unit ('00 Model) (BRN/BLR, PGM-Ft main retay, Radiator fan
switch, Transmission control module ('98.99 Models with MD (2 BRN/BLK wires),
Vehicle speed sensor, WEC pressure switch (GS-R, Type-R)
Shielding between the ECM or PCM and these components (all have BRAIDED wires):
CKF sensor, Primary and secondary heated oxygen sensors, Knock sensor (GS-R,
Type-R), TDC/CKP/CYP sensor
Shielding between the TCM ('98-'99 Models) or PCM ('00 Model) and these components(all have BRAIDED wires): Countershaft speed sensor, Mainshaft speed sensor
G1s1 ii Condenser fan motor
Brake fluid level switch, Cruise control actuator, Left front parking/turn signal light, Left
front side marker light, Left headlight, Power steering pressure switch (USA), Rear
window washer motor (Hatchback), Windshield washer motor, Windshield wiper motor
14-3
Blower motor relay, ELD unit, Badiator fan motor, Right front parking/turn signal light,
Right front side marker light, Right headlight.....plus everything grounded through G401
ABS fail-safe relay, ABS pump motor
G40114-4
ano
l4-c
A,/T gear position switch, Cigarette lighter, Clutch switch (M,/T), Ctock, Ctutch interlock
switch (MfD, Combination wiper switch (2 wires), Cruise control main switch, Cruise
control unit, Dash lights brightness controller, Data link connector, Daytime running
lights control unit (Canada), Front passenger's door key cylinder switch, Frontpassenger's door lock switch, Gauge assembly (2 wires), Glove box light, Heater
control panel, Heater tan switch, lgnition key switch, Integrated control unit, Interlock
control unit (AfI), Maintenance reminder unit, Mode control motor, Moonroof relay,
Moonroof switch, Parking pin switch (AfD, Power window relay, Rear window defogger
switch, Service check connector, Turn signal/hazard relay.....plus everything grounded
throuoh G201
Driver's door key cylinder switch, Driver's door lock actuator, Drivels door lock switch,Driver's seat belt switch, Fuel pump (BLI(/WHT), Fuel tank unit (BLI(/WHT), power doorlock control unit, Power mirror switch, Power window master switch (2 wires)
Hatch key cylinder switch, Hatch latch switch, Hatch opener actuator, Hatch ooener
switch, Left and right back-up lights, Left and right brake light/taillights, Lett and right
rear parking lights, Left and right rear turn signal lights, License plate lights, power
antenna motor, Trailer lighting connector..... plus everything grounded through G751
6-6
'14-8G503
(Sedan)
High mount brake light, Left and right back-up lights, Lett and right inner brake tighv
taillights, Left and right outer brake light/taittights, Left and right rear parking tights, Leftand right rear turn signal lights, License plate lights, Rear window detogger, Trailer
lighting connector, Trunk latch switch

Power Distribution
- From Fuses to Relays and Components (cont'd)
r'l'l
FUSE 48 \HEAruCHT \{la \
II-------Jc216c217
::]:I
-'..
'3
ir
:l
:!, I tFUSE20, : (BUNNTNG, I I u_qHrc)
'LJ___
. - All except USA RS - r
SECURITYSYSTEMCONNECTOR(oPTroN)
' BLU
,SECURITY SECURITY :.SYSTEM SYSTEM: CONNECTOR CONNECTOR ,
, (oPTroN) (oPTtoN) :I PHA|A 124 PHA|A 48 ,
UNDER-DASHFUSE/RELAYBOX
il
:l
i_J_
li:
tl
i [--., COMBI.. NATION
: LIGHT; swrTcF, Page 101
-- 18JF#
T
tn"r,o"" I
i
'*9,'ot,
"*r,o"" I
rrr
1l
tl
STEERINGLOCKPage 138('98- 99) or138,1 f00)
--'- Nr --
c452 wHr/BLU
'00 Model
: 16 r--
WHT/BLU
I(RS 7)
WHT/ALU
I Y€L
' 2 lt c415
i i--t't I
:l I
i olwrme, RUNNING, LIGHTSI CONTROL
: uNrT, Page 1'10-9
:. - . Canada
'98-'99
N,4odels
BLU
4 A C566
lt
ll
STEREO
Page
4 A C56(
lt
ll
STEREORADIO/CASSETTEPLAYERPaqe 150
ztlr7l!Ntl
ittaru f wnlalu I wrrier-u I
o,[ "uu' ,,, .!, "ou, ,o .!, "oo,r--1r--.|r--1
trtttl
tttttlL--J t--J t--JCLOCK POWERTRAIN ENGINEPage 154 or ENGINE CONTROLCONTROL MODULEMOOULE (ECM)(PCM or ECM) Paqe 23Pages 24 pr6ro ,,and 39-4PHO|O 14A
1 A C568
tl
tl
MAINTENANCEREMINDERUNITPage 83
10-8

* = '98-'99 L4odelsPOWERTRAIN or ENGINECONTROL MOOULE(PCM or ECM)Paqes 23-2 and 23'3 ('98-'99)- or 24-2 and 24-3 ('00)
PHOTO // f98 99 Models)
'98' 99 l\4odels
TRANSMISSIONCONTROLMODULE (TCM)Page 39-1PBA|O 51
--".-- A/T.--,
PHA|A 144 100 Made )
rl\lI&------ ---------J
26' I c4s7
L----J
c102PHO|O20
MAINSHAFTanoCOUNTER.SHAFTSPEEDSENSORSHIELDPage 39-1('98-'gs) or39-s [oo)
COUNTER-SHAFTSPEEDSENSORSHIELDPage 39-1('98-'sg) or3e-5 f00)
BBN/BLK
PRIMARY SECONDARYHEATEO HEATEOOXYGEN OXYGENSENSOR SENSOR(HO2S) (HO2S)SHIELD SHIELDPage 23-4 Page 23-5('98-'99) or ('98-'99) or24-4 ('00) 24-5 f00)
AFN/BLK
PBIMARY 'l
HEATEDOXYGENSENSOR TDC/(HO2S) CKP/SHIELD CYPPaqe 23-4 SENSOR('96- 99) or SHIELD24 4 ('00) Page 20
BRN/BLK
CRANK- ne_FSHAFT . - ii'pilp -i
SPEEDFLUCTUA-
CKP/CYPSENSORSHIELOPage 20
l1
ll
k::!
T|ON 'KNOCK
(cKF} : SENSORSENSoR . (KS)SHTELD , SHIELDpaoe 23-2 ' Page 23'6(96- 99) or ' (98-99) or
24 2 (OOt : 24-6 ('00)
r::)f::l i(::)
l::i iL:l
r::)
tt
tl
(- ,:o
BRATDED IWIFE I
lltl
k--'a
illBFAIDEOWIBEBFAIDEDWIRE
AFCRANKSHAFTSPEEDFLUCTUATION(cKF) SENSORSHIELDPage 23-2 (98-99)ot 24-2 (00)
. KNOCK, SENSOR,(Ks),SHIELD
| 1se:'ss; or, 24,6 ('00)
ir::)
MAINSHAFTSPEEDSENSORSHIELDPage 39-1('s8-'99)or3e-s ('00)c:) r::)
I
I
k:::
ll
tl
.k
(::)
ll
tl
kIt::
I
I
a
(::)
tl
ll
(::::BRAIOEOBFN/BLKBNAIDEO
:l I;l I
BNAIDED
:kll::
' BFAIDEO
i: (::)
::l I,' I I
iiffil
.---a--,--o
I""","j-.!,
"oo.
DATA LINKcoNNECTOR (DLCIPage 23-7 ('S8-'99)or 24-7 ('00)
(DLC)
BFAIDEDWIFE
14-1

lgnition System
INorE: For service check connector details, see page 23-6 ('98-99 Models) or 2zl-6 ('00 Model).
POWERTRAINI a oielcirs '-"
rDc cKp cyp i coNTRoLsensor sensor sensor ! MODULEinout inout intu,t | /PCM.ri! input input inDut | (pCM or ECM)I g"oc et !cj

:!--_j I
u"n,"." ! ----t
:jl--Jt---r-4,*"
"""*-Lf;
'':[:-==1-I=-==g=,-
u-{:::::L:::::+=i--- ""^".:-I'
.rr. s::3-.-:
;f:===-l_=* -=-f,*,,'fT
L-f--====E=--==i.l ""'"'"*'"'
=="=-'!---.!
I
-A 2r .|--___-OFNi 8LU II LT 8LU orI BLU/GRN
----o A c';;? F;o''","i:- F,to,l.,
Plug Wires
- - - -"-'lg- - - - - -^11 ct og
Spark Plugs
' Y-----rV-
- - - - ;V t#'",.
WHT.BLU ll BLU,"YEL I wHT
,. ?1, L--rrl:-,!-__,. ?Ll.oo,
cr3 c12 - - -.,,--a POWERTRATN(Dc Mr rckp M) icrb 6 | or ENGINEuensor Sensor Sensor i coNTRoLground ground grouno !laODuLi
20

UNDER-DASHFUSE/RELAYBOX
c301
c126
POWERTRAINor ENGINE
F,ltffi lialEE:;hfui | (PcM or EcM)
alcM) | PHaraTT lga 99)| 420 | PHA|A t4A t00i
(98 s9 20) Y (C408 98- s9)13 ll c457
YEUGFN
o
'98-'99 Models
BL{J
7
ALU
c103
cl 09
DISTRIBUTORASSEMBLY
c418(Terminals 18-20)
c452
cl27
BU'
9.
BLU
7BLU
'd
c301
JI
'"'fil
TESTr-]i.I GAUGE
lraiii'o l3,sseqarv
lmerer | --TACHOMETERCONNECTOR
IGNITIONcolLPower lgnition inputslgnalPrimaryoutout Enqine soeedcoritrol cround ouiaut (RPM)
20-.,l