1998 ACURA INTEGRA low beam

ECM CONNECTOR D (16P}
Wire side of female terminals
ECM CONNECTOR D (16P1NOTE| Standard battery voltage is 12 V.
TerminalnumberWirecolorT6rminal nameDoscriptionSignal
1RED/BLKTPS (THROTTLE POSITIONSENSOR)Detects TP sensor s;gnal.With throttle fully open: about 4.5 VWith throttle fully closed: about 0.5 V
2REDAr'r'HTECT (ENGINE COOLANTTEMPERATUBE SENSOB}Detects ECT sensor signal.With ignition switch ON (ll)r about0.1 - 4.8 V (depending on engine coolanttemperalure)
3WHT//ELMAP {MANIFOLD AESOLUTEPBESSURE SENSOR)Detects MAP sensor signal.With ignition switch ON (ll)iabout 3 VAt idle: about 1.0 V {depending on enginespeeol
4YELA/VHTvccl{SENSOR VOLTAGE)Power source for MAP sensor,With ignition switch ON (ll): about 5 V
5GRNAVHTBKSW (BRAKE SWITCH)Detects brake switch signal.With brake pedal released: 0 VWith brake pedal depressed: batteryvoltage
6*!RED/BLUKS (KNOCK SENSOR}Detects KS signal.With engine running: pulses
lPHO2S (PRIMARY HEATEDOXYGEN GENSOR)Detects primary oxygen sensorsignal.With throttle fully opened, fully warmed upengine: above 0.6 VWith throttle quickly closed: below 0.4 V
8RED/VEL
IAT (INTAKE AIRTEMPERATURE SENSOR)Detects IAT sensor signal.With ignition switch ON {ll): about0.1 - 4.8 V (depending on intake airtemperature)
10YEL/BLUvcc2(SENSOB VOLTAGE)Provides sensor voltage,With ignition switch ON (ll): about 5 VWith ignition switch OFF: 0 V
1lGRN/8LUSG2 (SENSOR GROUND}Sensor ground.Less than 1.0 V at all times.
GFNA/VHT(SENSOR GROUND}Ground tor MAP sensor.Less than 1.0 V at all times.
OBN/BLUSHO2S GND (SECONDARY
HEATED OXYGEN SENSORGROUND)
Ground for secondary heatedoxygen sensor,Less than 1.0 V at alltimes.
148LU/REDSH02S (SECONDARY
HEATED OXYGEN SENSOR}Detects secondary oxygensensor srgnal.With throttle fully opened. fully warmed upengine: above 0,6 VWith throttle quickly closed: below 0.4 V
LT GRNPTANK (FUEL TANK PRESSURE SENSOR)Detects fueltank pressure sensor.With luel fill cap opened: about 2-5 V
GRN/RED
EL (ELOiDetects ELD signal.With parking lights turned on at idle: about2.5 -3.5 VWith low beam headlights turned on at idle:about 1.5 - 2.5 V*1:USA*2: 818C1 engine"3:A"/T*4: B18C'1, 818C5 engines
11-41

Operational Check
Set the parking brake and block the rear wheels.
Raise the front of the vehicle, and support it with
safety stands in the proper locations (see section 1).
With the engine off, shift the transmission into lstgear,
Rotate either front wheel bv hand and check that
the other wheel rotates in the opposite direction.
lf the opposite tront wheel does not rotste, or if voucannot spin the front wheels at all, the limited slip
differential is faulty and should be roplaced.
Rotating Torque Check
Setting parking brake and block the rear wheels.
Raise the front of the vehicle, and support it with
safety stands in proper locations (see section 1).
With the engine off, shift the transmission into
Neutral.
Measure the rotating torque with a beam-type
torquo wrench in the direction shown, Rotate the
torque wrench morg than two complete turns and
take the maximum reading.
Shift the transmission into 1st gear and measure
the rotating torque again.
Calculate the rotating torque:
Service Limit:
Measur€ment from steD 5
Measurementfrom step 4 =--
For example:
7.8 N.m (0.8 kgf.m)
zg N"ll (03 kgf'ntl = z'ot > z''
Repeat step 3 through 6 for the other wheel.
Replace the limited slip differential assembly if the
rotsting lorque is lower than the service limit.
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15-23

.J
5.
6.
7.
8.
Remove the dashboard (see section 2O).
Remove the heater duct (see page 21 20) or the
evaporator lsee page 22-261.
Remove the two bolts, the nut and the passenger's
SRS beam.
PASSENGER'SSRS BEAM
Disconnect the mode control motor connector. and
remove the wire harness clip from the heater unit.
Remove the two mounting nuts and the heater unit.
6 x 1.0 mm9.8 N.m (1.0 kgf.m, 7.2 lbf.ftl
I r 1.25 mm22 N.m 12.2 kgf.m, 16 lbf'ft)
Il
I
I
lnstall in the reverse order of removal. Make note of
these items:
. Apply sealant to the grommets
. Do not interchange the inlet and outlet hoses.
Make sure that the hose clamps are secure.
. Loosen the bleed bolt on the engine and refill the
radiator and coolant reservoir with the proper
engine coolant minure (see section 10).
Tighten the bleed bolt when all the trapped air
has escaped and engine coolant begins to flow
from it (see section 10).
. Connect all cables and make sure they are prop-
erly adjusted (see page 2'l-271.
;!
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21-23

Connector ldentification and Wire Harness Routing
Engine Compartment Wire Halness
nll
Connectoa ot
Terminal
Number of
CavitiesLocationConnects toNotes
c301
c302
c 302
c303
c304
c306
c307
c308
c309
c310
c3l 1
c312
c314
c316
c317
c318
c319
c320
20
't8
1
14
2
3
5
1
1
2
2
4
2
2
1
2
2
2
3
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Lett side of engine compartment
Lett side of engine companment
Lett side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Middle of engine compartment
Lett side of engine companment
Left side of engine compartment
Behind left headlight
Behind left headlight
Behind left headlight
Behind left corner of front
DUmper
Behind left corner ol front
bumper
Behind lett corner of front
bumper
Behind left co.ner of lront
bumper
Main wire harness (C423)
Main wire harness {C424)
N4ain wire harness (C424)
Front fog light system
Engine wire harness (C126)
Engine wire harness (C'127)
Test tachometer connector
Daytime running lights resistor
Windshield wiper motor
Brake f luid level switch (+ )
Brake f luid level switch ( - )
Power steering pressure (PSP) switch
Lett front wheel sensor
Cruise control actuator
LeIt headlight (Low beam)
Lett headlight {High beam)
Front fog light system
Windshield washer motor
Rear window washer motor
Left front side marker light
Left front turn signal/parking lights
Option
Canada
USA
ABS
Option
G301Lelt side of engine compartmentBody ground, via engine compart-
ment wire harness
23-20

Connector ldentification and Wire Harness Routing
Main Wire Harness (Under-hood branchl
Conneqtor or
Terminal
Number ol
CavitiesLocationConnests toNotes
c201
c202
c203
c204
c205
c206
c207
c208
c210
c211
c213
c215
c216
c211
c218
c2r 9
c220
c220
c221
c222
c223
1
2
2
2
2
8
2
10
5
9'11
3
2
3
6
10
14
Behind right side of front bumper
Behind right corner of front
bumper
Behind right corner of front
DUmper
Behind right headlight
Behind right headlight
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side ot engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side oI engine companment
Right side ot engine compartment
Right side ot engine compartment
Right side of engine compartment
norn
Right front side marker light
Right front turn signaUparking
lig ht
Right headlight (Low beam)
Right headlight (High beam)
Radiator lan motor
A"/C wire harness (C151)
ABS front fail safe relay
ABS pump motor
ABS modulator unit (C151)
Under-hood ABS fuse/relay box(c901)
Under-hood ABS fuse/relay box
{c902}
Under-hood fuse/relay box (C909)
Under-hood fuse/relay box (C910)
Underhood fuse/relay box (C908)
Under-hood fuse/relay box (C911)
Right front wheel sensor
Engine wire harness {C104)
Engine wire harness (C104)
Engine wire harness (C101)
Engine wire harness {C102)
Engine wire harness (C103)
*1
ABS
G201
G202
Right side of engine compartment
Right side of engine compartment
Body ground. via main wire
narness
Body ground, via main wire
harness
ABS
+1:With ELD unit*2: B18C't, 818C5 engine*3: 81881 engine (A,/T)
23-22

T
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1
J)
Fuso NumberWire ColorComponent{s} or Circuit(rl ftqt6cted
't210AYEUBLKTurn signal/hazard relay
15 AYEUGRNPGM-Fl main relay
GRN or REDSRS unit (VA)
147.5 ABLK/WHTCruise control system
15BLK/YE LAlternator, VSS, ELD unit (USA), TCM, charging system light
't67.5 ABLVBLUABS control unit, rear window defogger relay (Via switch)
117.5 ABLK//ELAVC system, heater system, power marror
187.5 AYEUBLKDaytime running lights relay (Canada)
197.5 AYELEack-up lights
2010 AWHT/YELDaytime running lights control unit (Canada)
2110 ARED/WHTRight headlight (low beam)
2210 ARE D|YE LLett headlight (low beam)
2310 AGRN or PNKSRS unit (VB)
247.5 AGRN/ORNMoonroof relays
Power window relay
7.5 AYEUBLUClock, gauge and indicator lights
Integrated control unit
2620AGRN/BLKWindshield wiper motor, windshield washer motor
10AYEUGRNCigarette lighter
2810AYEUREDAudio unit connector
29Integrated control unit
30RED/BLKDash lights, clock
Integrated control unit
317.5 A8LU/WHTECM. PGM-Fl main relav
10ARE D/BLKFront parking lights, taillights, license plate lights
7.5 AWHT/GRNInterlock control unit, key interlock solenoid
23-49

Power Distribution
Circuit ldentification (cont'd)
RED/BLU -
RED/GRN -
REOMHT -
Righl headlighl (High beam)
High beam indicalo. light
Lelt headlighl (High beam)
Righl headlighl (Low beam)
Letl headlighr (Low beam)
Inlegraled conlrol unn
Optional conneclor (Dash lighls)
Inleglaled conlrol unh
(Flsorelay box so*el)
(Flssrelay bot sock€l)
(Fuse/relay box sodet)
COMBINATIONLIGHT SW TCH
lo| | PAsslNGto
BEo/BLK -- Healor conlrol panel hghl- Mgear posrton consote tighl
Cigarcfl 6 lighter/ashtray lightsGauge lighlsAudio unit connsclorR€ar window delogg€r swnch tbhtClockHazard wanlng swilci lighlGlove box lightOash lights bnghhess conlroller
Leit II
I lronlparkifC lighl
FighlJ
h",J'n') '"",.*
l"fn' ) 'nn., '.', 'nnt {r"o"n)
23-60
Letl L.Rgh I rrense Prale lrgnl

Ground Distribution
Circuit ldentification (cont'd)
Condenser laf molor
8LK
BLK
BLK
Righl headlighl (High beam)
Righl headlighl (Low beam)
Badiator lan molor
'LK ------
li;li fil Hi l'iff il"1"'"'
ELD unit (USA)
UNDER.HOODFUSE/RELAY BOX
: {Fuse/relayboxsockel)Blower molor relay
, (Fuseirelayborsochel)iear wnoow oerogger reray
G201
"--l-
VG401(To page 23-63)
AgS pump motor
ABS lailsale relay
@ , ac,nir" n",n"..
U Malnwire harness
23-62