1996 HONDA CIVIC IAC

Connector ldentification and WireHarness Routing
Engine Wire Harness (D15Y? engine): ,99 - OO models
c101
c102
cl03
c't04
c 104
c 105
cr 06
0107
c108
c109
c't 10
c11 r
c112
c113
c114
c115
c116
c117
cl18
c119
c120
c121
c122
c123
c124
c124
c125
c127
c128
c129
c 130
c 131
c134
c135
10
3
'I
3
?
2
3?
2
14
14
3
2
8
1
Left side of engine compartment
Middle of engine
fvliddle of engine
Left side of engine compartment
Left side of engine companment
Middle of engine
Middle of engine
Middlr ol sngins
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Right side of engine compartment
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Right side ot engine compartment
Behind right kick panel
Under right side of dashBehind right kick panel
Behind right kick panel
Behind right kick panel
Main wire harness (C303)
Crankshaft speed fluctuation (CKF)
sensor
Engine oil pressure switch
Alternator
AlternatOr
No. l fuel injector
No.2 fuel injector
No. I fual itjecto,
No.4 fuel injector
IAC valve
Throttle position (TP) sensor
Manifold absolute pressure {MAp) sensorIntake air temperature 0AT) sensorPower steering pressure (PSp) switchEVAP purge control solenoid valveJunction connector
Junction connector
Vehicle speed sensor (VSS)
Countershaft speed sensor
Engine coolant temperature {ECT)switch A
Distributor
Engine coolant temperature (ECT)
sending unit
Engine coolant temperature (ECT) sensor
Primary HO2S (sensor 1)
Back-up light switch
Lock-up control solenoid valveSecondary HO2S (sensor 2)Mainshaft speed sensor
Linear solenoid valve
Shift control solenoid valve
Starter solenoid
Junction Connector
Main wire harness (C446)
ECM/PCM
ECM/PCM
PCM
USA
Canada
M/T
Atr
Atr
Alr
Al-|.
Left side of engine compartment
Right side of engine compartment
Middle of engineEngine ground, via engine wire harness
23-24

Connector ldentification and WireHarness Routing
Engine Wire Harness {81642 engine}: .99 - 00 models
c 101
c102
cl03
c104
c 104
c'105
c106
cl01
c108
c110
cl11
cl12
c1'13
c114
c115
c117
cl19
c120
c121
c122
c123
c124
c129
c130
c l31
c133
c134
c137
c 138
c139
c140
Left side of engine companment
Middle of engine
Middle of engine
Left side of engine compartment
Left side of engine compartmentlvliddle of engine
Middle ot engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle ot engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine compartment
Middle of engine
Middle of engine
Middle of engine
lMiddle of engine
Middle of engine
Middle of engine
Right side of engine compartment
Behind right kick panel
Under right side of dash
Behind right kick panel
Behind right kick panel
Middle of engine
Middle ot engine
lMiddle of engine
Middle of engine
10
2
,]
4
3
2
2
2
2
3
3
2
2
2
14
14
3
2
'10
'I
2
4
2
1
20
22
25
31
2
2
I
Main wire harness (C303)
Crankshaft speed fluctuation (CKF)
sensor
Engine oil pressure switch
Alternator
Alternator
No. 1 fuel injector
No. 2 tuel injector
No. 3 fuel injector
No. 4 fuel injector
Throttle position (TP) sensor
Manifold absolute pressure (MAP) sensorIntake air temperature (lAT) sensorPower steering pressure (PSP) swjtchEVAP purge control solenoid valve
Junction connector
Junction connector
Vehicle speed sensor (VSS)
Engine coolant temperature (ECT)
switch A
Distributor
Engine coolant temperature (ECT)
sending unit
Engine coolant temperature {ECT) sensorPrimary HO2S (sensor 1)
Back-up light switch
Starter solenoid
Junction connector
Main wire harness (C446)
ECM
ECtvl
Knock Sensor {KS)IAC valve
VTEC solenoid valve
VTEC pressure switch
USA
Canada
Left side of engine companment
Right side of engine compartment
Engine ground, via engine wire harness

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*',
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I
016Y5/D16Y8 D16,
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,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 -----=-------------=--:
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23-1

NOTE: Fuse 3l 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 or 21-2.
FUSE 31SIAilEfi SIGT{AL7.fi
UNDER.DASHFUSE/RELAYBOXPHOTO 58See ldeoratodControl Unit,page 70.
1110c420
vtEv,/ 53
PGM-FIMAINRELAY
vlEW 18
-:f]'" l;;;,b"YEUG8N
I
vtEw 40
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i*"1 l:"'l I :
: I i: I I :
iazsA ii eoA ers|' , ltol lcql.I POWERTRAIN,a1F--X-lo"i"r t, "u*t : (FLF)
! , lAcvatve I i rq;.,.-...,; : Fu€r pump controt s"liii'p", ! EHc,le:;w, ruEr PqrrPlJtrIulI , connot :; IAC vatve controt , ! CONTROL
(cont'd)
24-1

Programmed Fuel Injection System (PGM-F|) (D1685)
NOTE: Fuse 31 is HOT with lgnition Switch in START (lll) and A'/T Gear Selector in PARK (P) or NEUTRAL (N),
see Starting System, page 21-1 .
@
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y#*i[HtF{,iiH.frIHHi Jiffi" !['.iF{,$SNALr5a Y 7.54| - See Inleqrat€dSse Pow€r | --+ ffii;l'i; -- | Phoro 58i ffi ffi:- |EHF? i I
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25
BIU

A/T Controls (All '96-'98 Models except CW and GX) (cont'o;
t(
E!@----.!powERTRAtN FT-------.tuNDER_DASHI rp Fcr ; coiir-noi-" '
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L__lo=--H: G401
c136
vtEw 2a
,il'f,*u,*.
1
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POWERTRAINCONTROLMODULE (PCM)
*l = '96 016Y8 enginei All Coupes'97 D16Y7 enoine: CaliforniaCoupe, Calitoinia Sedan LX'97 D16Y8 enorne: AllCouoes.Calrtornia Sed-an'98 model: All
*2 = '96 016Y8 enoine: AllexceotCoupes'97 D16Y7 enqrne: AllexceolCalrfornia Coupe and Califdf-nia Sedan LX'97 D16Y8 enqtne. A

exceotCoupes and ealrfornra Sed;n
a
39-2

85'[ru*,, 'l*u,*
wiz-"ln*"
-a
I
le
.il
c131
vtEW 59
----sgr
c410
vlEw 35
LT GFN
12
LT GFN
-----1 A/T GOrr
GAUGE ASSEMBLYPHOTO 6/vlEw 71
I Posttlon
i Indlcator
I
I
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I
I
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IJ
14
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I
II
A
I
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1
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S€e A,/TGearPositionIndicator
c4t0
vlEvl 35
'96 D16Y8 enqine: All Coupes'97 016Y7 engine: Calilornia Coupe,California Sedan LX'97 D16Yg engine: AllCoupes,California Sedan'98 model: All
'96 D16Y8 enqrne: All exceot CouDes'97 D16Y7 en6tne: All except CaliiorniaCoupe and Caftfornia Sedan LX'97 Dl6Y8 enginei All except Coupesand California Sedan
See A/TGearPositionlndicator
*"r I
-
----s+----+="1--'-scFN/AlU ll GRNryEL ll vEwar_----F----*-r nr cenn| | | POSITION| ; swlrcHt I oTo78
I
see cruise control I
{GBN/RED N'---1;'
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39-3

\lr
POWERoooR LocKCONTROL UNITPHOfO90vtEw37
UnlocULock lock Unlockinput control ot lputLockourpur
YEUBED
1YEUFED
r
c557PHO|Q93vlEw 62
c654
FRONT .PASSENGER'S 'DOOR LOCK , 6
ACTUATORvlEW 6
c664
DooR LocK iACTUATOR ,
DOORKEY
4
BLU/
WHT/RED
cA14iu-o16ez wHT/FEO
DRIVER'SDOOR 4
LOCKACTUATOR
c634FED
LEFT REAR .DOOR LOCKACTUATORPHA|O 95 WHT/REO
WHT/FEO
FED
I YEL/
c654PHO|A 921YEUBED
c67 4
c570
vlEW 5
YEURED
BLK
BLK
WHT/BEO, WHT/FED
I wHT/REo
c664
c571
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130-1