1997 HONDA CIVIC ECM

lgnition System
- All '96-'98 Models except Dl685; '99-'00 Dl6Y5 with M/T
NOTE: For Service Check Connector details, see page 23-3.
@
CKP CYPsensor sensorinput input(CKPP) (CYPP)
X,*.,
rDcsensorInpur(IDCP)
POWERTRAINor ENGINECONTROLMODULE(PCM or ECM)
POWERTRAINor ENGINECONTROLMODULE(PCM or ECM)
xr*"
BLKI/EL
I
I
BLK/YEL
I See Power
H Distribution,
J__99'"'_
I
I
I
I
I
I
UNOER-OASHFUSE/RELAYBOX
"a*,telfi
u I """%t'3.
,rrrr.iFiFx".-,''ril'fi :T-DASH ll pagelo-1.FUSE/ I( FUSE 9
F.itl, Lq::---
".:lo63
10
BLK,YEL
10
c101
vlEW28
c'120
vlEW29
BLK
c14
c120
vlEW29
rIDcM) IGKPM) (CYPM)Sensor Sensor Sensolground ground ground
L-- - - -- -----J PHora 36
L-----------J
:L_1__I,
! iii:?ifq"l
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*-"*,t";'
= PHO|O 33PHOTO 123ICW)
Secondary
ti <..-/4 i t
iLi:"_gl_i iL-----1!-----r
96- 97 models I 98- 00 modets
20
Spark Plugs

, r -.-- .l TBANSMTSS|ON
I igF"![E#'
:. lr-ri";l:';9""
POWERTRAINor ENGINECONTROL MODULE(PCM or ECM)PHO|O 86
lgoitionoutEltofl-
YEUGFN
c'l20
TESTTACHOMETEBCONNECTOR
DISTRIBUTOR
.I GAUGEI ASSEMBLY
iw,tr?,'
I
IJ
BIU
9
ALU
BLU
c120
vtEw 29
c101
vtEw 28
'. Y F,fl}l.BLU I viEw 60
cel
i i:*bi
rA*oxErEn
irlg:lL----- ----
20-1

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

POWEBTRAINor ENGINECONTROL MODULE(PCM or ECM)
vtEw 70
lgnitionoulputsignatflcM)
I
YEUGBN
c'120
vtEw 29
DISTRIBUTOR
D1685 -------,
BLU
_9-
BLU
8
9LU
:'!'\?- - -
c101
vtEw 2a
----------<- c442
I frerminals 1-4]a|-u a olo'25 |I vlEw 54
19 g C411a PHOTA 60aru I vtrw ool,cBA- -.t GAUGF
i f#f rAcHoirErER ift?i,?""i
liitr" i !I L--J IL ---- - --- -J
TESTTACHOMETERcor.rNEcToRPHO|O2l
lgniiionnrpur Fh^ih-signal "p_il;Ground output
PrimaryoutPutcontsol
20-3

NOT-E: Fu^se.31 is HO-f-with lgnition Switch in START (tD and clutch pedat depressed orA"iT Gear Selector in PARK (P) or NEUTRAL (N), see Siarting Systeni, page 2i or 21-2.
See Int€oratedControl Jnit.page 70.
UNDER-OASHFUSE/RELAYBOXPHOTO 58
c420
vtEw 53
PGM-FIMAINRELAY
vtEW 18
|- flrn*',
""-"'l
""^"*l *L
I
016Y5/D16Y8 D16,
;-ensnewrh",r-t :--*f 3l3yi:131ffi,-'' ---
I H;[h- N
i ii jt
lilT:{xsl I
ffifi:iil:"'"" il
-UTtl
i ryffi$il: i i ffifrffi ,,1 _,_:_____r,"*,
,A124 , , A14A, A13A ' 416A C6APOWERTRAIN, , ,^lAcy) (iAcvP) (rAcv N) | crnt $rs): I rAurr'arve , i r--.-, : Fuel pump control Start input ! :rNGtNFi , nt;*Y:l"" , i r--r I Fuel pump conkol Stan input | ;'NG|NElr 'uv"nv' : , IAC valve controt ' ICONTROL\I , I MODULE
t'----- ':------------i l(PcMorEcM)
I t';[?,i?"*L------ ---J
(cont'd)
---l-lf -----=-------------=--:
i
"au*", IzI
23-1

POWERTRAINotENGINECONTROLMODULE(PCM or ECM)
85
ee ABS,RS, A/Trontrots (cw)
vlEw 59
See ABSSRS, MControls
Y
I
-rJ
i-
i ,r.^ sewice ili\, see,ence 3!13o, sensor *ii!o* ru
i oft,lo n[%!t?o oi8",,lo Glitid "oll,??9, ilffs, n,&l]o 'no$., a:;&------ --J vlE
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Se€ GroundDis ibution,page 14-5.
Y
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lt
L___l-: G402See GroundDistribution,page 14.
(cont'd)
23-3
LF
PHO|O 123 (C\.t)

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

: , See ly'C ' See, See ' Compressor : Charging' Fans : Controls ; System
'YI Y:Y
:l: ll:[
il: l:l
i*"1 i "*"."1 : o"",".o1
, r | : -^*l
ili I i Ii. *, I i rrz.l, ; ot. I'.--..--r-
/i**fffi'* I r,rcffi"oro, i e.St*I ; cornrd ' clulcfi rday ' nput
| .-,---;---l COntrOl
\'
\;t ' Altsrnqtor! Nc Altemator : conrol
/, u.1;lf* roqrsr rnpd FRfrgd ; tSJ",
&rrr:rr
SeeCharornoSystein - :
Y:
!i
u".o I i
i:
o,. .!, iPOWERTRAIN
l*.]["n i 13'"',1+?3.': I MODULE; | (PcM or EcM)
i lw,t?'"
Altornstor ; Iconrol i I
$:--lJ
"''I
',n,-
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See VehicleSpeed Sensorryss)
*[
".,^."
!
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t
See NCCompressorControls
.r_l
See Charging Sysetm
(cont'd)
23-7