1998 HONDA CIVIC egr

!t
USA:
UNDER,DASH FUSEi RELAY BOX
COMEINATONLIGHT SWITCH
No.48 (304)FUSE/Frcm page \\23{8 /
No.a8 G0A)FUSE/Frcm page \\23-72 )
lo
I ' to"'to
RED/BLU _
BED/GRN _
FEO/GRN -
REDMHT -
REo/{EL -
Figltl h6adlighl (High beam)
High beam indi€tor light
Lefl headlighl (High beam)
Right headlighl (Low beam)
Letl headlighl (Low beam)
(Fuse/relay box socl(el)
(Fuss/relay box sockel)
FEo/BLK t
RED/BLK t
optioml @nn6clor loash hghls)
InEgraled control unil
Hazard waming sMch ligldGaugelighlsAudio unilnear wndow delog0er swild lighlCruiso main switdr lighlctuis€ndrcalot .. ]crmminocircu,tA/ | qsar posrrcn nor@Ior JDash lighls brighhess mnlroller
l'/T gea. pGilion console lighlHeald conlrol panel ligtn
::: I lronl oarkino liohlHqm,
n-'i6 J *t"' t"itt'9t'6
n-,sh j inn"t u'll'gl't'
:: 1 | hcense Dlale liohtsHgnr i
(cont'd)
23-73

Ground Distribution
Circuit ldentification
(To
I 8an6ry ground cable
: Engine ground caue A
Primary HO2S (M/I) IEGR valve (,tffT) | {Ot6y5 engtne)EGB conrol Isllenoid va ve (vT) lwEc flessure switdr (Bl6A2engine)
vss
PSP swtch
Baaery
BLK -* bqiu"trl'ff lso",ilE o;l?f ;".,L ur,u" "ou.,,r,oo, "*'n",
Trlnsmission ho!gng
BLK
BLK
BLK
BRN/BLK
I
I
Vp?oe 23-76, 77)
'96-98 models'99-00 models 816A2, D16Y7 engines
99-00 modors D16Y5, D16Y8 engines
s,-( -i-t;lBL(- pcM Frman reray' E ) tc" 't*' tn''n''*t'''
wEC pressurc sMch(016Y5, D16Y8 engines : 98-00 models)
@
E
Efal
i Engine grcund cable B
: Engrne wire hamess
(cont'd)
23-75
El , M"in ttire hatn"."

t
'96-98 models:
BLK -..1 |-|d BLIJ/REo - Horn
8LK
J
G402/ To page 23,81
6L^ --...........-- Munn'un' 5.nLi
?_ Moofrootooen retayL MOOnTOOI dose relay
B-(- Dash hghls bfrqrlless co 'oel
l- ftyess door to* mnlror Lnil-llerX + Seorriry @rl'ol Jn :
JUndonconnedor
BLK
BLK
BLK
Cnrise main swilch lighlCruise indicalor dirnming orcuilRed window deloggel swilch lighlA/T gear posilion indicalor dimming cilo./il
Accessory power sockelSRS indicalor lighl circlil
Cauges end indicatols
ABS indicalor lighl cirq)rl
Gauge lights
El : Engine companmenl wire harness
E , M"in *it" h"n"..
E : oashboatd w€ haness
@ : Moonrool w re harness
UNOEB,DASHFUSE/RELAY BOX
EL^ - YY'iisnEo 'F€ "'v'u'- Bfale llJ d levetswlci
qq.-_
E I Dah Inl col"eclot 'D-cl
Windshield w perhvasher swildr
--l ,o ,? '.da.
Rear window wip€r^vasher swtch
'''"_- -- , rA/Tll_ paa pirswilcF t-,l- Clulcf nlel ock sw lcr rVT)
Cruise conlrol unil
8LK - Da,'lm€ runnrng lrghts conltol unil (CanaJa)
(Fuserelay box sockel)
(Flserelay bor sockel)
(Fuse/relay box socke0
(Fuse/relay box sockel)
BLK-
(M/T wilh cruise conlfol or lor D16Y5 erEine)
Bear window delogger relay
Lnlegrated conlrol unil
Turn signal/hazad @lay
(cont'd)
23-79
oot

-
Wire side offemale terminals
LtwHT/8LUl
ALTERNATOR 3P CONNECTOR
lCanada)
Wire side oftemale terminals
LIWHT/BLUI
L
{W}IT/BLU)
.+1lr l2l
l3T.l-l-
ir/
(WHT/BLUI
(cont'd)
23-115
{From previous page)
Check tor an open in tho L cir'
cuit-1:1. Turn the ignition switch OFF
2. Disconnect the 4P [3Pl con-
nector from the alternator.
3. Ground the No. 3 terminal of
the 4P l3Plconnector.4. Turn the ignition switch ON (ll)
Turn the ignition swhch OFF, and
rep.ir tho open in tho wHT/
BLU wire.
Does the charging system
light come on?
Check for an open in the L cir-
cuit-2:Disconnect the No 3 terminal o{
the 4P [3PI connector from theground.
Does the charging system
light go off.r
Turn lhe ignition 3whch OFF, and
.epair the 3hort to gtound in the
wHT/Bl-U wire.
ALTERNATOR 4P CONNECTOR(USAI
r?-rl1l2l
FFI
]--
I
I l: canada

Integrated Control Unit
UNDER,DASH FUS€/RELAY 8OX
IGNITION SWITCH
I wNDSHTELD II wrPEtuwAsHEF II swrTcH I
i Y **i,,*I wHT,tsLK II t_+
JV
Circuit Diagram
INTEGRATED CONTROL UNIT
8LK
G40tG402
WINOSHIELD WIPER/WASHER S-W|iCI.] ,
OFF/INT INT
f7 Y7
IIlltl
ttBLU/BLK YEUELU
ELUMHT
I
I
WINDSHIELDWIPEBMOTOH(As)
* 1 : Wilh mmbrned wiper washer operalion*2 : 96-98 models
UNDES H@O FUSE/RELAY BOX
6
,8-q
INTEEMITTENTWIPER RELAYCIRCUIT
"J COMBINEOWIPER.WASHENctncutT
WINOSHIELDWASHERMOTOR
23-156

Integrated Control Unit
Input Test
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRSsection {24) before performing repairs or service.
1. Remove the driver's dashboard lower cover and knee bolster (see section 20),
2. Disconnect the 10P connector from the integrated control unit.
3. Remove the integrated control unit from the under,dash fuse/relay box.
4. lnspect the connector and socket terminals to be sure they are all makjng good contact.
. lf the terminals are bent, loose or corroded, repair them as necessary, and recheck the system..lftheterminalslookOK,makethefollowinginputtestsattheconnectorandthefuse/relayboxsocket.
- lf any test indicates a problem, find and correct the cause, then recheck the system.- lf all the input tests prove OK, the control unit must be faulty; replace it.
INTEGRATED CONTROL UNIT
lOP CONNECTOR
Wire side otfemale terminals
23-158

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

Lighting System
Circuit Diagram (Canada)
UNDER.HOOD FUSEi RELAY BOXBATTERY
BFAKE SYSTEMLIGHTNTEGRATEDCONTROL UNIT
f-7
I
IFED/GRN
REDiGFN
II
o
Yro*, ,,r'oI LEVEL SW TCH
t |
lclosed : Floal downl
BLK
I
-L..
G401G402
T
.:
BLK
n:
G40lG402
BLK
I
G201
RED/GRN RED/GBN
| .+_
ttL
| | las*,
| \_i-f
Alr
Y,o" r.o" I
liiqff'- |BLK BLK
tl
dT--
G401 G202G402
l\------tr -1
d,$,E" T d
RED/BLU RED/REDiGEN
UNDEF DASH FUSE/RELAY BOX
I
)) N0.20tl0Al)'
No.1g(7.5A)No.50 0A)
, ll-l
llltti /i[ii i,II
ll
llri, zll",ll iu"x
TT
FEDiGRN R€D
tl
!-tl--l
ttuLj
il]-
YEL REDTWHT FED/BLU FED/8LK RED/ BLK
tt++
IIVV| | .DASF L.GHTS . oAB(^rG -TGHTSI I .DAS-LGH'S.TALL'GCTS
| | 33''9+il4[','o L.ENSEoLATELTG'TS
I l-,ro,u,rffl,
^-^^-.*^,{*"'"0-
tlI qsnlq,rr DAYT'ME qUNNINGLIGHTS FES STOF
nd--f)
irt* | | Trt* Iorr Itt I---J \---J-------J
-rGHr
lt*"','
I
I
YEL/BLK
DAYTIMERUNNING LIGHTSCONTROL UNIT
RED/GHN R
I
5
[i.mi:-",,,