1998 HONDA CIVIC egr

lgnition System
- All Dl685 engines; All '99-'00 Models except Dl6Y5 with M/T
NOTE: For Service Check Connector details, see page 24-4 (except D1685) or 25-4 (D1685).
STEERINGLOCKPOWERTRAIN
lm- sii.- s*- iffffiEgr
I '8f", '3#n '3#n | (Pcn' or EcM)
L------ -----J Wro 86
',L_I__J,
!l---+--l !
'i---
j----i'
fl '","?siii,xl
I I I
i*n"'."
-"1 "-l '-l *"-^lr";J
I I I ='i.{i31i",,-
All except D1685D1685
gLK.Yer t
u l9f#'
fi
"*1,[
F,*';.,
!'T-f*-'i"i! {F+ Distdbution,
LJ_gg'n'_
i.x,r
9'x*"
-.t
iF--Hs-,mT-l
ll pase lGi. I
l( FUsEe I
!Lig::___J
.I UNDER-I DASH
a FUSE/
! RELAY- BOX
1 Y C419 UNDER-^,ol',lill,l?"u' rlir?IA) RELAYBOX
.t0
BLKI/EL
10(D16Y7/D16Y8 s)
c101
PHO|O 142 lA1685)vlEw 2a
c120
vtEw 29OFN/ALULT BLU orALU/GRN
BLU,^VEL
c120
vtEw 29
ELKWHT/BLU
7
FED
c21c9
ALK
c30
;;--;;---o;;;lSensor Sonsor Sensor I
POWERTRAINor ENGINECONTROLMODULE(PCM or ECM)
ground ground gtound
L ------ -----J PHoro 36
Sec!l|dary
Sparh Plugs
20-2

- Automatic Transmission (All except Dl685)
NOTE: For cars equipped with optional security system, see Security System, page 133-3, .133-7, or 133-12
for starting system circuit schomatic.
Starting System
c3s2PHO|O IvlEw 27
ftxiE "2E1404
WHT/BLK
I
lta":
c415
=-mF,Uf.
--l
9,lLT i ld;f,,"-
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It
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I
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I
I
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pag€ 10.
slan?(ll)
c415
I
Ji.I ELECTRICALI roAoI DETECTOR
I Gt ol ulra Ptfifo I
IJ
BLKAIVHT1
ELK./YEL
au(|vEL
BL'(4I/HT
4
c416PHOTO 53
c4t 6PHO|O 53PHO|O 56 f98 'oo)vtEw t2
c433
Vehiclss pre-wired foraccessory securaty system(Not Used)
R'SE 4IlA??tNY,olALXAVHY'10
Allsxcsptow aLKlvHrcwSoe Pow6r IDistibution, !page 10. a- ----JT1PHOTO 9
BATTERY
BLKAVHT
7
L-----L---JBLKFED
13:;-1ifl;ft?R
!-
)2 'lPHoto tg
a
BLI(RED
1I
ELIVBED
ALKNED
c433PHOTO 76
Soe PowrDslributbn,Pa€o 10.
9 a c101
er.xiwxr I ffo,rtfl't
c4rIPHO|O 63
Ft gg 3r5? F En 3E ^r7.94
4
r'STARTERPHO|O 34UNDER.DASHFUSE/RELAYBOX
A13
tl
II{TEGRATEDco|{TnoLUT{ITPHOfOUvtEw 67,--==--J
Sso PGM-FI, page&1 ot 24-1.
21
lGl

- 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

PGM-FI (All '9G'98 Models except Dl685; '99r0O D16y5 with M/T)
TRANSMISSIONCONTROLMODULE (TCM)
llEv/ 69
ECM ECMcontrol controlReference data datavollage inDutNREF) OMA}:q{.J
(VREF) OMA) OMB)Reference ECM ECMcontroldatajnput
EGRcontrol shift' I solenoid
i
-l
"""'"x :i1",'
sofenoid lock Pa(klvave Circult neutr; I vave circuit neutral| | control control inPut, ! (EsOLr {sru, (A}FNP):L------
voltag€ controldataoutput
I
{
ta
i;;;;';;
."
*
'i\,
' circuit neutral Reverse D4 D3 2 indtcator, ;' control input input input input input control | -,| (sLU) rAlPNPr TATPFI {ATpO4i dlPD3) tAfPzr rDa rNDl | /
[J=:ITTIT'{t
' Interlock See Automatrc: Svstem Transmission Controls I
i i controt
i
"'J;:;;,.,"^,
!
l1l
"lL
:1,.
i
".f:;;,.,"^, 1.,."n,
: I lt ti.."stEBkTJBi ""il*l"*
: | /" I SOLENOTD VALVE
i \J PHaro 12a I
i
t'i!",,,
Bi"ifit**1
';
i l ;;;a ',, pase 14 !'#$tl ii{"Ff*,
i
*-1.
---f !.gg1mr..
' 4 cror| - PHAfO 123
23-6

i--I,*.;----l
I I ffl* s€€ Pow€' I
!---h=js:q-l
r'1ltii*",
! il"Jiisa"
;ll
i-[*-*"".""--l
! @ffi[+[ffI. !
! Ir6rer i
L--L-,sr@lc5Y
UNDER.DASHFUSE/RELAYBOXPHO|O 58
GAUGEASSEMBLY
;------- USA -------,
see ly'c i S"" :Compressor , See Charging ;Controts , Fans System , POWERTRAIN-
li*t*rr,, ".o^.of, i """f """,tr' i tff'$fit!
Tl,!,
"0o -;;l
i ;;l ^*l i
n"""j.F,rH;
Irs I A17 A :A2oA moA :
,'-----ri;)---7ol------T-;;l----,il--i-----'r,' r',lrr- di-ritror lvc "orip-E""or : Fa; ;;iror eldiinit : II clutci relay conlrcl InPd I\tri---"---i t!9--. i-;ter";--I i{r,*+-i 1s"'*.'lr I t'lc : EGR control : : Atternator I A[emator ]'. I KS : requ6st ; solenoid ; VSS ' control , FR Ia , inDut : inout , \iave control , inpul , sional ' sianal I, , (Ks) i i*"1 , (Esor, _jt,__.j-_JgL-.j__ ,^:_j3------- --- --- -- -.4- -- -- -,1-- - -
i"fiti".,ff:l i"111 iffilifili"F"l
i*l i + i I i
"+
i-"1 :''"1T'See LiC , I ' See vehicle t--'---'-'
ComOressor , 2 ^C142 : SpeedContiofs | | PHoro124 i Sensor
i ft> i :"::l
' ".o
|
",o,o,,0
i lisi: 3i&S**n,"n
i Lti-t i i rh;ry,'s;3+r"" i
: I ""n,".*l iiltll lS'"",.?^8"'$lli'til ""n'"'*! iil-il]J5ff#f."ruuu
i ll.,*'o.* ! *o,o,no i i l'.lT- seecround
: FflSI8$" i Btr"lifiiJ}': i i *i[ Bi,i"EL'""
; f lJffi""' !**;' i i":-lei'u!,7,,"
ws{u'
(cont'd)
24-5

I -.. t
iecnuaruerirt Rererence rp iiftii* l"*o, $'n"o.
t
.i sensor Input voltaqe sensor input inpul input inp"r II TEGFL' rvca?r Opsl rFirir.rxt rECn i,ari tL------- _______.J
PGM-FI (All '99-'00 Models except D16Y5 with M/T and D16B5) (cont,d)
- D16Y5 Engine
BLK
c131PHOTOssvtEW 59
ENGINECOOLANTTEMPER.ATURE(ECr)SENSORPBO|A 32
c130Oerminals 18-20)
vtEW 52
YEUALU
20
YEUALU
YEUALU
YEUBLU
1
YEUBLU
ALU
LT GFN
EXHAUST GASRECIRCULATION(EGR) VALVELIFT SENSORPHO|O 36
TEMPER.
tllfrtr'l
I J tffiT,.:'
""",:I
1r:{
Slt or
lr;: H
H#*iiff''I
fi[ffi,''""."'.1
"_
[;,l;,+. N
:{I
c1t5(ferminals 8-14)
vtEw38
n"","*[
"raI
r -,^^:.I POWERTRAIN| "ji""il, I corrnor
lu'"t !H"3fii:'L __ J V|EW 7a
24-6

PGM-FI (D1685) (cont'd)
EGRvdvo Fuer ia ( tEGR In pres$uro \valvs s€mor nd*6nc6 lP i.snsor h.tsl lank tenF, Icont ol inDut volt|ce s8fi8of inDul inbut ssnsof ifix, I: control inDln voltac€ s€{tlor input inout sonsol ingJl ;I G.€GF} GGf,q N@a fiPg' .(PFoJ fiFO) ,L------- ------J
j
c2887
c150PHOTO 112
C'ro1PHO|O sl
c575
vtEw 7i
(FUELTA}IKTEMPEB.ATURESENSOR
H1Y
FUEL TANKPRESSURESENSOnPHOTO 116
THROTTLEPOSrT|0NCIP)SENSOR
EXHAUSTGAS RECIR.CULATION(EGR) VALVEand LIFTSENSORPHOfO 36
"""r":x
o
GRI{/BLK
4
GNN/BLK
GNN/gLK
c575
c401PHOfO 57vtEw 40
2
GRN/BL(
cls0
a
POWERTBAINCONTROLMOOULE(PCM)PHOfO 86
I
I
IJ
n"*r"a^[
'rcai/BLX llcre Ar--?
lsJiH,
I ground
I
25-6

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
I
\
\
\
\
\
\
I
I
I
I
I
I
/
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:"" ,.!,.*,