1998 HONDA CIVIC Integra

Integrated Gontrol Unit
Input Test (cont'dl
A8--------.--all
Key-in/Seat Belt R€mind€r, Lights-on Reminder Systom:
Cavity WireTest condhion
Bulb Check System (Brako System Light):
Cavity WireTest condilion
Tost: D€sirod r€guh
T6st: Dosirad result
Possible cause if result is not obtained
Possibls cause if rasuft b not obtainod
A8
Combination light
switch ON
Check for voltage to ground;
There should be battery voltage.
Blown No.30 (7.5 A)fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
B7RED/BLU
lgnition switch ON (ll),
and driver's seat belt
switch unbuckled
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G552)
Faulty seat belt switch
An open in the wire
B9GRNDriver's door openCheck for voltage to ground:
There should be 1 V or less.
. Faulty driver's door switch. An open in the wire
Bl0BLU/RED
lgnition key inserted
into the ignition key
switch
Check for voltage to ground:
There should be 1 V or less.
Poor ground (G401. G402)
Faulty ignition key switch
An open in the wire
A4GRN/RED
lgnition switch ON {ll),
brake fluid reservoir
full, and parking brake
tever oown
Connect to ground: Brake system
light should come on.
Blown No.25 (7.5 Alfuse in the
under-dash fuse/relay box
Blown brake system light bulb
An open in the wire
A13BLUA/1r'HT
lgnition switch at
START (III)Check for voltage to ground:
There should be battery voltage.
Blown No.31 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty starter cut relay
An open in the wire
23-160

Wipers/Washers
Component Location Index
SBS components are located in this area, Review the SRS component locations, precautions, and procedures in the SRSsection (241 betore performing repairs or service.
WIPER/WASHER SWITCHTest, page 23-215REAR WINDOW WIPERMOTOR lHatchback)Test, page 23'216WINDSHIELD WIPER ARMS/BLADES
WINDSHIELD WIPER MOTORTest, page 23-215
WASHER FLUIDRESERVOIR
WASHER MOTOR {Hatchback)Test, page 23'216
INTERMITTENT WIPER RELAYCIRCUIT (ln the integratedcontrol unit)
t_l
Iilr
i
T
23-214

Contents
How to Use This Manual ICircuit Schematics (see Circuit Index)Fuse/Relaylnformation 6Ground-to-Componentslndex 6-6ComponentLocationPhotooraohs 201Conriector Views 202
Circuit Index
Accessory power socket 155Air conditionerAir delivery'96198 models 61'99-'00 models 61-2Blower controls'96198 models 60'99100 models 60-1Compressor controls 62Fans 63Anti-lock brake system (ABS) 44A/T gear position indicatorCVT 89All except CVT 89-1Automatic transmission controlsAll '96-'98 models except CVT and GX 39All '99100 models except CVT 39-8All GX models 39-8'96-'98 CVT 39-4'99100 cw 39-12Back-up lightsCoupe and Sedan 110Hatchback l'10-1Brake lightsAll Coupes and'96-'98 Sedans 110-15'99-'00 Sedans 110-16Hatchback 110-17Brake system indicator light'96198 models 7'1'99100 models 71-1Ceiling light 114-3Charging system 22Condenser fan 63Console lights 114Cruise control 34Dash lights 114Daytime running lights 110- 13Engine coolant temperature gauge 81-1Fog lights 110-10Front parking lights 110-2Fuel gauge 81-1Fuse/relay boxUnder-dash 6Under-hood 6-4Underhood ABS 6-3Gauges 81Ground distribution 14Ground-to-Componentslndex 6-6Hazard warning lightsAll except '99100 Sedans 110-6'99100 Sedans 110-8Headlights 110-12Headlight switch 100Heater - See Air ConditionerHorn'96197 models 40'98 model 40-1'99100 models 40-2lgnition key reminder 73lgnition systemAll '96198 models except Dl685 20All '99100 models except D16Y5 with Mn 2O-2All D1685 engines 20-2'99-'00 D 16Y5 with M/T 20
lndicators 80Integrated control unit 70lnterlock systemAll except'96J98 CVT 138'96198CVT 138-1License plate lightsAll Coupes and '96-'98 Sedans I l0-3'99100 Sedans 1 10-4Hatchback 110-5Low fuel indicator light 74Moonrool'96197 models |22'98-'00 models 122-1Odometer 81Oil pressure indicator light 80-3Power distributionBattery to ignition switch, fuses, and relaysFuses to relays and components 10-2Power door locksAll models without keyless entry 130'96-'98 models with keyless entry 130-2'99100 models with keyless entry 130-12Power mirrorsWithout detogger 141With defogger '141-2
Power windows 120Programmed fuel injection system (PGNr-Fl)All '96-98 models except D1685 23All '99-'00 models except D16Y5with M/T and D1685 24All D1685 engines 25'99100 D16Y5 with M/T 23Radiator fan 63Rear window defogger'96-,98 models 64'99100 models 64-1Seat belt reminder 73Security system'96.'98 USA HX, LX, EX 133'96-'98 Canada EX, Si 133'99TOO USA HX, LX, EX, DX.V Si 133-4'99100 Canada EX, Si 133-4All CX and DX models 133-8Speedometer 81Starting systemA./T (All except Dl685) 21A"/r (D16Bs) 21-1Manualtransmission 21-2Slereo sound system 150Supplemental rastraint system (SRS) 47Tachometer 81TailliqhtsAllboupes and'96-'98 Sedans 110-3'99100 Sedans 1 10-4Hatchback 110-5Trunk light 114-3Turn signal lightsAll except'99100 Sedans 110-6'99-'00 Sedans 1 10-8Vehicle speed sensor (VSS) 33Wiper/washerFront 91Rear 92
10

Fuse/Relay Information
- Under-dash Fuse/Relay Box
Front View
c712(To moonroof wire harness)
. : Canadai : Not UsedO : C926 loprion (+B)l
@ : C927 loption (dash lights)]
O : C928 [Option (ACC]I
@ : C929 loption (lc2)l
Rear View
css2
c421(To main wire harness)
c801CI-o SRS main harness)
c501(To dashboard wire harness)
^ : Not used ('96-'97 models)
c913(To ignition switch)
INTEGRATEDCONTROL UNITCONNECTOR A
c419Oo main wire harness)
REAR WINDOWDEFOGGER RELAY
TURN SIGNAUHAZARD RELAY
c423(To main wire harness)
co
c422(To main wire harness)
POWERwtNDowRELAY
c551flo lloor wire harness)c439 f96.'97 MODELSand ALL GX MOOELS)(To main wire harness)
T1 T-t T"l T"t r-r r-'l T1 F n r-l r-l r'123 24 25 26 27 28 29 30 31 32 33I-J I.J I.J IJ IJ IJ LJ IJ IJ I.J I.J I-I
r"1 r-t r-t T-l r"l r-r Fl r:1 n rJ n -12 13 14 t5 16 17 t8 19 2A 2t 22LI I.J L! LI tJ LJ (J LI IJ IJ T-I I.J
n r:l rj.l |-l T"l Tl r:t n r-l |;.l r-r r-l1 2 3 4 5 6 7 I 9 10 11LI LI IJ LJ LJ I,J T-I I.J TJ IJ I.-I tJ
c420(To main wire harness)
6
(To floor wire harness)

- Under-dash Fuse/Relay Box (cont'd)
Fuse/Relay I nformation
Fuse
NumberFuse NameAmps
(P/W RELAY)
(S/R RELAY)
FR WIPER
FR WASHER
LO
Page
10-7 |
I
Component or Clrcuit Protected
i Power window relay, Moonrool
Front wioer/washer
CIGARETTE
LIGHTER
ACC SOCKET
10-7Accessory power socket
I RAD|O CLOCK
I
110 115)l
tl
1O-7 |
I
Stereo radio tuner ('96198 models), Audio unit ('99100
model)
Not used
i 7.5i 114 iDash & console lights
I srnnrensrorunl | 7.slzl , zt -t , ! eCU-n main retay, PCM/ECM, Integrated controt unit
I ot 21-2 t
I LICENSE LIGHTS I 7.5
I rerr uesls I
Parking lights, License plate lights, Tail lights| 1oo-1 |
tl
| (f NTERLOCK UNIT) | 7.5 | 10-12 I Interlock system
* = '98 models
6-2

Ground-to-Components I ndex
f.,lONOTE: All ground wires are BLK unless otherwise noted.
GroundPageComponents or Circuit Grounded
Battery (BLKYEL)
Steering pump bracket
t+-rg ITransmission housing
l
G101
(-1)
G101
(-2)
14-2
and
14-3
ano
14-1
Powertrain or engine control module (PG1 and pG2 are BLK: LG1 and LG2 are
BRN/BLK), EGR control solenoid valve (CW, EGR valve and lift sensor (Dt6yS enginewith M,/T), Engine coolant temperature switch, pGM-Fl main relay, power steeringpressure switch (USA), Primary HO2S (D16Y5 engine with l\/,/T), Vehicle speed sensor,VTEC pressure switch (D16Y5/D16Y8 engines), CKF sensor (BRN/BLK), Transmission
control module (CYf) (Pc1 is BLK: LG1 is BRN/BLK)
Shielding betvveen the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor. Primary and secondary heated oxygen sensors.
Knock sensor (CWDl6YB engine), Mainshaft speed sensor (AiT except CVT),
I Countershaft speed sensor (A/T except CVf)
Shielding between the TCM and these components (CVT) (all have BRN/BLK wires):
Drive pulley speed sensor, Driven pulley speed sensor, Secondary gear shaft
speed sensor
Powertrain or engine control module (PG1 and pG2 are BLK; LG1 and LGz are
BRN/BLK), EGR control solenoid valve (D16Y5 engine), EGR valve (Dt685), Engine
coolant temperature switch, Fuel pressure regulator shut-off solenoid valve (D1685),
PGM-FI main relay, Power steering pressure switch (USA), Vehicle speed sensor, VTECpressure switch (All except D16Y7 engine), CKF sensor (A

except 81642) (BRN/BLK)
Shielding between the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor, Primary and secondary heated oxygen sensors,
Knock sensor (All except D16Y7 engine), i/ainshaft speed sensor (Arf except CW),
Countershaft speed sensor (A,/T except CVf), Drive pulley speed sensor (CW), Drivenpulley speed sensor (CVT), Secondary gear shaft speed sensor (CVf)
I Badiator fan motor, Right front parking/turn signat tight, Right headtight
G20214-4I Cruise control actuator, Left front parking/turn signal lights, Left headlight, Rear window
I washer motor, Windshield washer motor, Washer fluid level switch (,99-'00 Canada)
G401| +-o
and
14-7
Accessory power socket, Brake fluid level switch, Clutch interlock switch (M/T), Clutchswitch (lillT with cruise/D16Y5 engine with MfD, Combination wiper switch (Z wires),
Cruise control main switch, Cruise control unit, Dash lights brightness controller, Data
link connector, Daytime running lights control unit (Canada), Gauge assembly, Horn('96-'97 models), Integrated control unit, Interlock control unit (ArI), Keyless door lock
control unit ('99-'00 models with keyless), Moonroof close and open relays, Moonroof
switch, Park pin switch (A/r), Power window relay, Rear window defogger relay, Rear
window defogger switch ('96-'98 models), Steering lock, Stereo radio tuner (,96-,98
USA: LX, EX, and HX), Turn signal/hazard relay, Windshield wiper motor.....plus
everything grounded through G402
6-6

- Manual Transmission
NOTE: For cars equipped with optional security system, see Security System, page 133-3, or 133-7, or 133-12
for starting system circuit schematic.
Starting System
c3s2PHOTA 8vtEw 27
WHT/BLKc415
FUSE 42to!a0a
UNDER-HOODFUSE/RELAYBOXI
I
I
_l
IELECTBICALIOADDETECTOR(ELO) UN|TPtloro I
Sae Po'/Y€rDislibution,pag€ 10.------JT1
Se6 GroundDislribution,page 14-6.
BATTERY
STARTERCUTRELAY
PHO|A 129198)PllO|O r35 f99 00)
a
BLK/FED
9
BLKAVHT
ct01
vlEW 2A
c4't9
vtEw 49
FUSE 31STAATER SICIIAL7.5A
STARTER
4
Sse PGM-FI,page 231ot 2+1.
UNDER-DASHFUSE/RELAYBOX
At3
tl
tl
INTEGRATEDcol{tRoLut{llPHO|O U
r.------T-------------=;-*^:-lsrEERtNG
I i 1'----> R*.|?xf: iiiliffi' t"t%?I,,I Distribulion.1j;cx y' page 10.(0)
it-jtr'tl i
j
r---_-_€rx^,:jF;f
;-;:.==:t A r,+lo'tii:,J?"""
;--;*;.-f -- ^.:---.---1--
,'rr-'OO .o0"," 3,rffiEj,
---;;;;i[
cLUrcH TNTERLOCK tClosed wrlh clutch pedal Ifully depressed. llPHoro 1ra I"**"
!
Se€ PowerDistibution,page 10.
4('98100 models 3)ALU/BLK
f2 lE--r.---?q_l srAFrEn
21-2
I- G1

Integrated Control Unit
NOTE: Fuse 31 is hot with lgnition Switch in START (lll) and clutch pedal depressed or A,/T Gear Selector in
PARK (P) or NEUTRAL (N), see Starting System, page 21,21-1, ot 21-2.
See BrakeSystemlndicatorli^hl
FUSE 3IstaaTEaSIGI{AT7AAI
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I
\
\
\
\
\
\
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S€s SiarlingSyslsm, pago 21,21-1. or 21'2.
SEs BrakeSystemlndicetorLight A6
SsaClharSrrESystom
Eog GoundDistlbution,page l,l-7.
L------3c420PHO|O 63vtEw 53
--r-r..r'
FED/BLU
SeeCeilingLightSee Seat Beltand lgnitionKey Remind€rs
t@
i'l-;;,-lH8B'r*| rrmn1gn I FUSEI
i f t*" ig8f"LJr____J PHOTO 7
u'lf tf,%,
S vtEw 3a
wHr/FED
| 3fl3,n'"n
wHr,FED I sYsteh
<--=- !t
,r"r,".0 | ,n"r,".u I
| .l B*?r:"" ,.!,.*,