vss ACURA INTEGRA 1998 Service Owner's Guide

).1
Contents
How to Use This l\.4anual 1Circuit Schematics (see Circuit Index)Fuse/Relaylnformation 6ComponentLocation Photographs 201
Connector Cavity Numbers 202Connectorldentification 203
Ground-to-Components Index 6-6Wire Harness Routing 203Circuit ldentification lor ln-Line and Fuse Box Connectors
Circuit Index
Air conditionerAir delivery 61Blower controls 60Compressor controls 62Fans 63Anti-lock brake system (ABS) 44A/T gear position indicator 89Automatic transmission controls'98199 models 39'00 models 39-4Back-up lightsHatchback 110Sedan 110- 1Brake system indicator light
USA 71Canada 71-1Brake lightsHatchback 110-6Sedan 110-7Cargo area light (Hatchback) 114-3Ceiling light 114-2Charging system 22Cigarette lighter 155
Clock 154Condenser fan 63Console lights 114Cruise control 34Dash lights 1 14Daytime running lights 110-8Door open indicator 114-2Engine coolant temperature gauge 81Engine oil pressure indicator light 72Fog lights 110-14Front parking lights 110-11Front side marker lights 110-11Fuel gauge 81Fuse/relay boxUnder-dash 6Under-hood 6-3Under-hood ABS 6-5Gauges 81Glove box light 114Ground distribution 14Ground-to-Componentsindex 6-6Hatch open indicator '114-3
Hatch opener '134
Hazard warning lightsHatchback 'l l0-2Sedan 110-4Headlights 1'10-8Headlight switch 100HeaterAir delivery 61Blower controls 60Fanswith A,/C 63without A,/C 63-2Horns 40lgnilion key reminder 73lgnition system 20
204
lmmobilizer system ('00 model) 132lndicators 80Integrated control unit 70Interlock system'98199 models 138'00 models 138-1License plate lightsHatchback 110-12Sedan 110-13Lights-on reminder 73Low fuel indicator light 74l\,4aintenance reminder light 83l\iloonroof 122Odometer 81-1Power antenna 151Power distributionBattery to ignilion switch, fuses, and relays
Fuses to relays and components 10-2Power door locksHatchback '130
Sedan 130-2Power mirrorsHatchback 141Sedan 141-1Power windowsHatchback 120Sedan 120-2Programmed fuel injection system (PGM-Fl)'98199 models 23'00 models 24Radiator fanwith tuC 63without A,/C 63-2Rear parking lightsHatchback 110-12Sedan 110- 13Rear window defogger 64Seat belt reminder 73Security system 133Speedometer Il-1Spotlights 114-2Starting syslemAutomalictransmission 21l\.4anualtransmission 21-1Stereo sound system 150Supplemental restraint system (SRS) 47Tachometer 81- 1TaillightsHatchback 110-12Sedan 110-13Trailer lighting conneclor 118Trunk lid open indicator 114-3Trunk light (Sedan) 114-3Turn signal lightsHatchback 110-2Sedan 110-4Vehicle speed sensor (VSS) 33Wiper/washerFront 91Rear 92
10
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12Fg oAmerican Honda Motor Co., Inc. - All Rights Reserved Service Communications 275 pages

How To Use This Manual
Component Locations
To see where a component or connector is located on the car, look up its photo number in the
Component Location section in the back of the book. The photo will also tell you the color of
the connector. and how manv cavities it has.
VEHICLESPEEDSENSOR (VSS)
ENGINECONTROLUNIT (ECMPHOIO 8A
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To see where
connectors and parts
are located, look up
their photos in the
Component
Location section.
r -.I GAUGE
| | ASSEMBLY I
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ll
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il"l,*.I CRUISE
I CoNTROL
i"u,t',:..
lf there is no photo number below or beside a connector, ground, or terminal number, look up
that connector, ground, or terminal number in the appropriate Connector ldentification Chart.
The chart will tell you the color of a connector, how many cavities it has, where it's located,
and what component or harness it connects to. On the page opposite that chart you'll find an
illustration of the related harness.
Connector ld6nlillcallon and Wire Harness Rouling tconrd)
SEAT WIFEHAFNESS
c712lf a connector on a
schematic has no
photo number, look it
up in the Connector
ldentification chart.
c297
203-15203-14
t-

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
)

I
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FUSE 14(cFUlsEcorrEoLl
FUSE 15alTEaxAron8P SEt{904?.54
UNDER.DASHFUSE/RELAYBOX
\
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8
BLl(YEI
c504
C551 (Not 18
floro used)c551 12PHOfO 58
c560
GAUGEASSEMBLYPages 22-1and 80-2
c440
:l
c410
c440 '12
PHO|O 625A
BLK/WH'
c417 I l' C555
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llL--J L--JCRUISE CRUISECONTROL CONTROLUNIT MAINPage 34 SWITCHPHaro s5 Page 34
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BLK I 8lK lt Y pHoto5l ,YEL I YEL I -..-",-. I
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BLK/^YEL
12 g c301
c127
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ALTERNATORPage 22
,I
SECONDARYHEATED OXYGENSENSOR (H02S)Page 23 5 ('97-98)or 24-5 ('00)
I er-xi, YEL
9 4 C421
4 g c510
":'.!.^--^ I : I :"1'I^-^- i""! ",",. ;i
"".%',3,. ! : I :'f,,"#5."1 !;I; ;i
i.,II i :l',JI .1',IT :i'Ll ! :1,T.1 r"'Ll i V | :i
c7s3 ,l"rro i ,4"'.0 ' ,,1[s112 izsrz [ ^---:lf :f^--:]r A czgs zlczzq i zAcrgq ' 2Ac1't2 ' 25 X- -':-A c420:' | 1Ac2r8
[l i--l ii--l ii--l ii-----l ii!i'--l| | r | :t | ' I I :t ! ':l!
| | | | rl l:l | :l l:;alL--i L--.r I L--j , !--r : L-----r ,i i r-=l ,EVAPORATIVE EVAPORATIVE ' IHTAXC : VEHICLE : TRANSMISSION :; ; EIEqTRICAL
EMISSION EMISSION , AtR ; SPEED ' CONTROL :' ! !o49 -: BypASS , SENSOR ' MODULE fiCM):'! !%9
ie.vfD- F!Afl,-. ; iiiirss : 9F,lIioR ' l|oDtllEficM) ;:l LTl9.r.?f
I
bvpads aoNThoL i rAat- ' (vss) ' Pase 3s 1 ': i (ELD)-uNlr
soLENolD caNlsTER ; bor.!n.o1 ' Page 33 ', euo,o,, :: I l.?^s_"^l?VALVE VENTSHUT , SOLENOTD , pHora 26 , :,4 Ptloro 23 |Paoe 23-5 VALVE ' VALVE ;' L--- - J(96-99) Page23-5 i paqe 24-5 | : 'IUNDER-HOODor24-5(00) f98- 99) , pdato t32 : : ':FUSE/RELAYorz+-3(uul (Yo-w/ | pHaro 132 :, FusPHoro 136 or 24 5 ('00) : , BOXu,.eJ\vv/PHOfO 139 | ,t PHOTO21
l--33. -j :-- ee-ss lvodels --:l---.usA ---
Model
:lrt I
; POWER-, TRAIN' CONTROL' MODULE
: (PCM), Page 39-5
, '00
, Model'- with -.,lo
10-3

TRANSMISSION
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PGM-FIMAIN RELAYPage 23 ('98-'99)or 24 ( 00)
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* : '98-'99 Models
i---------\L---------J(- 10) r-- -;-;.11, (c408.)(- 23)10
'98- 99.. GS.R' l/odel
inrrarerrn i
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.-- GS-R. TYPE.R
VEHICLESPEEDSENSORRADIATOBFAN SWITCH
and 63 2
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(vss)Page
PHATO 6IIITJ
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33
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10
Ground Distribution
NOTE: Wires shown without color codes are black.
VALVECOVER
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- G1, G2, G3, and G101
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BATTERYPage 10
r-'r
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14

UNDER-HOODFUSE/RELAYBOX
, F------ | Ventcte Aa
i i ^fffl" ^ff" oPSo F;3 "oF8.. ,E?, i ! : 33::$ 3ligf*, 3i:,""1*n'ni | -r# Shitt Baromettic +svolt I ii i^m^
i!'-i
i | -# shitt Baromettic +svolt I ll : i,l':Y' "-''-.
, a UpshrfvDownshitt acknowledge pressur€ reterence I I, : comparal've inpul sensor ; N: ! signaloutput input ! I'L------ - --95-. s"" e.,r
i-l;.--l
L_H:_:_i
*"'"if
T,ff;*,,
f, o"e" toz
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8^c4o9 , 16 rac410 274--!----i-./r c4og P4oro 77
/' r'r#",.0, 1-1 Sal9lsgic I rPlSr ,,ffi'", : ,l;3' I
i oit" ortiut | 15f;#.1* ' ELD unit inpLrt Fan : A/c comrossof Icutrol ; clutch r6lay it,-----'l Upshift/Downshift Barometrb .-------.|l. comparalive pressure "- ------: Altsmator I Altemator ,l
:\Aff Ft signal input Shfi sensor +svolt P Uneukal ; VSS Iy'C on FR ' output ,l
' I data lin€ acknowledge outpul ref€rence input , input input signal ' signal : I
i 7 ,^i;gn (ffi,er ,AFsAr' {.As' {BAo2oun ,El ,ot"p' i %?3 'fut, ,tTf : ,tL" i !'4------ r-----r- --_?_::=-.^:r-
;[-1I{T-=TL: ilT:TW-
DATA LINK CONNECTOR (DLC}
-- Shift Baromettic +5 VoltUpshifvDownshitt acknowledgepressuro reteren(
ocM)
, (vss)
- -t-*-"stiG.-"- -,,
".", ? :< a;;;'"
CONTROL MODULE -' -;:'; II
3 V c43o--_ A/r _" LTGRN/I PBoro 63
I ar-x ll, 3l cs58' f -.f .l GAUGE
: I Pail7 lSJl^EllBLY
: llSl'il?l--: L=":J
23-7

Vehicle Speed Sensor (VSS)
FUSE 15
.t UNDER.DASH
! SBiE/RELAY
'--- 98 99 models with A,rT ----
1
5
J^r""'See Groundarr< Diskibulion,
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"'*l I
!r::'-'
c438
".,,::.x
POWERTRAIN '| ,,--,^,- | or ENGINEI l:li.:" a coNrRoLi ::J:" : MODULE :
i
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i!""""9;li"S, j
L---J pHaral&(oo)
ll
Vehiclespeedinput
c30t
CRUISECONTROLUNITtl
! y::g" II i,ifi- |L---J
-ir""'
MAINTENANCEREMINDERUNIT
(98-'9918) y. C409
c452
12
I BLK/. YEL
, BLK/I YEL
BLK'YEL
-'oomodel GS'R-----.
See Powera4 Distribution,
I
ease 1o-3.
x-----
l
c127
c1't2VEHICLESPEEOSENSOF(vss)PHOfO 26
lgnitioninputVehiclespoed output
Ground
33

- How the Circuit Works
With the ignition switch in ON (ll) or START (lll),
battery voltage is supplied through fuse 15 and the
BLK//EL wire to the vehicle speed sensor (VSS).
The sensor is grounded by the BLK wire to G101.
The speedometer and other control units in the
circuit supply about 5 volts to the ORN wire. The
vehicle speed sensor (VSS) intermittently grounds
the ORN wire which generates a pulsed signal in it.
The number of pulses per minute increases/
decreases with the speed of the car
Refer to the Service Manual (Section 23, Electrical)
for specific tests or troubleshooting procedures.
33-1

Cruise Control (cont'd)
- How the Circuit Works
The cruise control system uses mechanical and
electrical devices to maintain the car's soeed at a
setting selected by the driver.
System Description
The cruise control unit receives command signals
from the cruise control main switch and the cruise
control SevBesume switch. With the ignition switch
in ON (ll) or START (lll), voltage is provided to the
cruise control main switch. When you push the
switch to on, power is provided to the cruise control
unit and the brake switch.
The cruise control unit receives information about
operating conditions from the brake switch, the
ignition control module (lCM), the vehicle speed
sensor (VSS), and the clutch switch (manual
transmission) or the A,/T gear positton switch
(automatic transmission). The cruise control unit
then sends signals to the cruise conirol actuator
which regulates the throttle position to maintain the
selected speed. The control unit compares the
aclual speed of the car to the selected speed. The
control unit then uses the result of that comoarison
to oDen or close the throttle.
The brake switch releases the system's control of
the throttle at the instant you press on the brakepedal. The switch sends a signal to the control unit
by removing power from the normally closed brake
input (GRY wire), and providing power at the
normally open brake input (GRNMHT wire). The
control unit responds by allowing the throttle to
close. The clutch switch or the A/T gear position
switch sends a "disengage" signal to the control unit
that also allows the throttle to close.
The cruise control system will set and automatically
maintain any speed above 25 mph (40 km/h). To set
it, make sure the main switch is on and the switch
indicator is on. Then, after reaching the desired
speed, press the set switch. This sends a "set"
signal to the cruise control unit which, in turn,
controls the cruise control actuator to maintain the
set soeed.
When you push the SET switch and the cruise
control system is on, the "cruise control" ON
indicator lights up.
34-4
You can cancel the cruise control system by
turning the main switch off. This removes power to
the control unit and erases the set sDeed from
memory. lf the system is disengaged temporarily
by the brake switch, or clutch switch, and the car's
speed is still above 25 mph, press the RESUME
switch: the car will automatically return to the
previously set speed.
For gradual acceleration without pressing the
accelerator pedal, push the RESUME switch and
hold it there. This will send an "acceleration" signal
to the control unit. When you release the switch, the
system will be reprogrammed tor the new speed. To
slow the car down, push the SET switch in and hold
it there. This sends a "deceleration" signal to the
control unit, causing the car to coast. When the
desired speed is reached, release the SET switch.
This reprograms the system for the new speed.
Reter to the Service Manual (Section 23, Electrical)
for specific tests or troubleshooting procedures.

Automatic Transmission Controls
- '00 Model
47n
24
FUSE 4AACX UE(8ADrO)
c2't7
'r,

Ir.g
l
See PowerDistribution,pag€ 1G9.
FUSE 52HOBfl, SIOP204
UNDER-HOODFUSE/BELAYBOX
c418Oerminals 15.17)
8
WHT/AIU
aa+See PowerDistfibution,page 10"8.
I
$See ABS,Brake Lights,Cruise Control
. B2t 432r--rsrbFswlIBattery back-up Btake switch input i
Shift lock Shilt conkol solenoid Lock-up control solenoid Linear solenoid \Vehicte JirCuif ly'C on valve control valve control valve eontrol Isoeed inDut control inDut !speed input control inputlvss) {rLUl tacoLl {SH B, rSH A' {LC A) (LC B) {L.s+J (LS ) Ic23 A2A At7 02 D7 Dl D3 817 8a -'c23 A28 A17 02 D7 D1 D3 817 88
T-lF$ffiT-il:
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iy:[*i xFEf"* llrTril ilfinpl -l-
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39-4