2000 HONDA CIVIC heater

Fuse
NumberFuse NameAmpsPage
BATTERY
Component or Circult Protected
Power distribution
lgnition switch
INTERIOR LIGHT | 7.5 | 10-10 | DLC, Ceiling light, Trunk light
FI E/M15 i(20 GX) i
i PGM-FI main relay, Fuel injection relay (GX)
Not used
POWER WINDOW| 10-10 | Power window relay
BACK UPStereo radio iuner ('9G'98 mod€ls), Audio unit ('99100
models), Heater control panel, PCM/ECM, TCM (9e'98
cvr)
HEADLIGHT
REAR DEFROSTER I
DOOR LOCK UNIT,
ROOF
i 10-12i Headlights
Not used
Rear window defogger relay
Power door lock control unit (all except '99-'00 models
with keyless), Keyless door lock control unit ('99-'00
models with keyless), Moonroof
i HORN, SrOP Lri 10-13i Horn relay, Brake switch
HAZARDHazard warning switch
OPTIONI 10-13I Security system (option)
i HEATER MOTOR Ii 10-1 i Blower motor relay
(CONDENSER FAN)
COOLING FANl1o-1
Condenser Jan relay, A'lC compressor clutch relay
Radiator tan relay
&5

Ground
G402
Components or Clrcult Grounded
Arr gear position switch, ABS control unit (3 wires), Blower motor high relay ('99-'00
models), Blower motor relay, ELD unit, Heater Jan switch ('96-'98 models), Heater
control panel, Mode control motor ('96.98 models), Power transistor ('99-'00 models),
Service check connector....plus everything grounded through G401
| 14-13 | ABS pump motor
1l-9 i Stereo radio tuner ('96-'98 models), Audio unit ('99-'00 models)
Drivsr's door lock actuator, Driver's door lock switch, Drivefs window motor' Left mirror
defogger, Pow€r window master switch (2 wires), Power door lock control unit (all
except '99-'00 with keyless), Power mirror switch
G55214-9 i Driver's s€at belt switch, Fuel pump, Fuel tank unit, Right mkror defogger
G601
(Hatch-
back)
14-12 iLeft and right back-up lights, Left and right brake lighvtail lights, Lefl and right rear
turn signal lights, Left and right tail lights....plus eveMhing grounded through G761
G601 I 14-10
(All Coupesl
ano
(96198
S6dans)
High mount brake light, Left and right back-up lights, Left and right inner brake lighv
taiilights, Lett and right license plale lights, Lett and right outer brak€ lighvtail lights'
Left and right rear turn signal lights, Rear window deJogger, Trunk latch switch
G601
(99-'oo
Sedans)
G602
('ss-'00
Sedans)
G761
(Hatch-
back)
G771
(Hatch-
back)
14-11
14-12 i
High mount brake light, Left and right back-up lights, Left and right brake lighvouter
taillights, Left and right inner taillight, Left and right rear turn signal light' Rear window
deJogger (GX), Trunk latch switch
Window antenna coil
Hatch latch switch ('98-'00 models), High mount brake light' Left and right license plate
lights, Rear window wiper motor...plus everything grounded through G601
Rear window defogger
14-13 i SRS unit (2 wires)
*1 = All '96-98 models €xcept Dl685, '99100 D16Y5 with M/T*2 = '98 D1685, all '99-'00 models except Dl6Y5 with M/T
e7

I
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-- a---
i
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MOOECONTROLMOTORPage 61-1' o( 61-2
a
r--1 PowER| | utnnon ;| | swrrcH ;L--J Page l4l 'vtEw 33
- - - '96-'98 models --rand all GXmooers
FUSE 17H€ATENI,/C FEI,AY7,5A
16
c420
vtEw 53
c3s2
r::'l
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BLOWERMOTORRELAYPage 60or 60-1PHO|O9 '.a-4.1
I uorr I
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A,/C
CLUTCHNELAYPage 62
UNOER-DASHFUSE/RELAYBOX
ia;ij
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NAD|ATOR
\
\
I
(NotUsed)
BLK,YEL
't6
BLI(YEL
c440
vlEw 45
BLK/ryEL
'96198
models
'9$'00
mod€ls
I
c?23
vtEw 57 '
ALKTYEL
c723
vlEW 57
atK
2^
1l
ll
HEATERCONTROLPANELPages 61,62-1, and63-1
H EATERCONTROLPANEL
60-1,61-2,62 2,63 2,and 64- 1
TION A/CTHERMOSTATPages 62-1,62-2,63-1,and 63 2PAO|O 82 f96- 98)
NELAYPage 63
UNDER.HOODFUSE/RELAYBOX
ssgj
lTlA/cI I I DIODE
l+,PHoro1t.lEf
Y
r::'r
I uorr I
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CONDENSENFANRELAYPage 63
COMPRESSON FAN
-.i--. :
:t:
:l:
:l:
: l,T.il i
:l:
: ,Jl i, r--'t '
:l l:,t t:. L-.J ;; BLOWEn ,, MOTOR. HIGH' RELAY :: Page 60-1 ,, (See S/l\, 'I page 21-3) '
1_ 'ss,'oo lmooets
r--1
tl
ll
RECIRCULATI(CONTROLMOTORPage 61 or 61,2
10-9

* = '96-98 models except D1685,'99100 D16Y5 with lVl/T
UNDER-HOODFUSE/RELAYBOX
'98CW - -.
, r--1
:ll:,tt:
: r--J ;, TRANSMISSION ,. CONTROL' MODULE OCM) :' Page 3g-4 ;I PHOIO 121I vlEW 69
I
I
\FUS€ 47aAcx uP
c351
WHT/BLIJ
WHT/BLU
WHT/BLU
18c4'l t
vlEw 60
WHT/ALU
WHT/ALU
11c440
WHT/BLU
10
' WHT/BLU
, 423
c131
vtEw 59
WHT/BITJ
'96-'98
models
I
tl
tl
STEREORADIOTUNERPage 150
'99-'m
modelsmodeB
'99-'00
models
c723c723
vtEw 57
wHr/atu
810B21cc10)
tl
ll
HEATERCONTROLPANELPages 60-1,61-2,62-2,and 63-2
vtEw 76
tl
tl
POWERTRAIN oTENGINE CONTROLMODULE(PCM or ECM)
Page 23, 24, ot 25
AUDIOUNITPage 150
tl
HEATERCONTROLPANELPages 62-1and 63'1
10-1 1

- G402
NOTES:
. Wires shown without color codes are black.
. On '97-'00 models, G402 may be represented by the use of a junction connector or ring terminals.
with ABS - - - - - I
. ABS CONTROL I' ultt '
HEATERCONTROL HEATER HEATER
iili, BB-'fi",. Eiff* 5fi::g PowER i,8;g'"'
;;; ;;; MoroR ;il--"'. ;;1-;; rRAN- H|GH
!if,6f1- ease ot-t Ino b5-.t ' fi i *- slsroR FELAY- ,pHaTa t3z pHoro 70 photoT. iioro ^ Page 60-1 Page 60-1vtEw 76 vlEW 17 V|EW 44 V|EW11 PHOTO139 PHOTO 83
r-1r-.!r-1r-1r-.|r-1
| | | | | | rl I lll
| | | | | | I ll ll IL-J L-J L-J L.J L-J L-J
Page 44PHOTO 85vtEW 63
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i , m cean; I POStflON, : swrrcH :' , Pages 34-3, 39-3, :' | 39-7,39-11,39-15,;: ' 89, 89-1, 138, and ,
; : 138-1| | PHO|OIA :' , F-'t .
'99-'00
mooel
'96-'98
moo€ts
'9G'S
mod6ls
'99-'00
modol
a
12c440
vtEw 45
FromG401on page14-6.
v
l-
SERVICECHECKCONNECTORPages 23-3,24-3,25-3,39, 39-4, 39-8,39-12,44-1,afid 47
c402
I
I
3 cass
l;l:,12,
li
rc i UNDER-HOOD, FUSE/RELAYBOXPHAfa 7
I elecrRrca- |I LOAD BLOWER I: DETECTOR MOTOR iI (ELD) RELAY II UNlf Paoe 60 |
a W.': :;ffil iI r-r F-'r I
tt | | | |
tr | | | |I L-J L-J I
i 'r Y iL--+---J--J
I
'I&%,14.,I
14-5

PGM-FI (All '9e'98 Models except D16B5; '99-'00 D16y5 with M/T)
- D16Y7 Engine
' I pressure Ret€rence sensor ECT IAT primary I' i sensor input , voltag€ input sensor rnput sensor inDut HO2S inout I| ! praNKi ' OCc2) irpsr (Ecr)' ,tAr) ' l"no)si- I, r (Pr^Nn, \wtz) {rPs) iEcr} (AT) {PHozs)lL-------J----- --_-__J: Dis y j oro y ory D2 y D8y D7y
i.--1*.".ffi,"[
',[
]ilBLKryEL
l='i$d""-""---ffi][.[
.l
I ul,
I
Iffiry I IH;
iw| irT_nHBRrfrnEBsi+lrplffii.;t
llffit!$il
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phu Laa
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: 13 V"*3J
iclll ! 'e""
2Y lY LrGRN
'll---o19;.?:.,,GFN/
it io-rb as ; BtK I GFN BLX I GFN.BLK ll cRN BLk
(Termi-rl, lt nals, '97 model: I 8-14)r - - - California Coupe, ll PHoro 46Calitornia Sedan LX I I,E, J8'98 model: all
r (suzl lPo2sHrc) I! Sensor inmary'| 6rl1d Ho2s \
a - heater \
t control I,L------- -----J'
23-8

PGM-FI (All '9e'98 Models except D1685; '99-'00 D16YS with M/T)
- D16Y8 Engine
I
I
-t---"",t ;
ii hffi- i ffis* #""r, i"[' | (PTAN6 , gCC2l fips)'L-------4-----
i -:l i ,,,rt[
"'[ D2
lllHd,..--"ffi[il
iffi;',::l-l' anv ll '97 model: allCoubes, I' au I calitornia Sedan I
i n":, *t,*%,nof
'o0"" "",
lf1 fr3::fj* |
:"*iu,.'o ' lJ l;'F#F. I
id[fr?4;" i
'[ i
i +l L'i':----i ---I- - - - - -::'
iko,*o* [U!3v'0" I
rrar) ' lniczdt I
6i?----i''-v------J
BEO/^YEL
sensor nput(ECo
NTsensol lnpdlnqrr
BA /BLK).l
.a
II
t
k
PRIMARYHEATEDOXYGENSENSOR(H02S)
c123
cr23PHOTO 42
_1
ALX
ALK
-i
INTAKEAIRTEMPER.ATUREOAT)SENSORPHOTO 15
E33"ln'*' l-1-l
g.:;'$;lfj
H
t
,{
LT GA
2
GNN/BLK
8!(7YEL
c 5(Terml-nala8n4)
vtEw 38
GRN/BIK
Dll
BLI(AVHT
a ' sSfl, *SffT3,. {
I grourd heater'clntrot r\
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23-10

FED/YEL! il'Jlilli:Distribulon,
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Fromnext page.FI
t
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INTAKE '
AIR ;TEMPER. .ATURE(rAr)SENSOR 'PHO|O 4s i 4
BRN/BLK
c123PHO|O 40vlEw 19c123
PRIMARYHEATEDOXYGENSENSOR(HO2S)
PRIMARYHEATEDOXYGENSENSOR(H02S)
-- -.-g c123,7 ,t1":.," I :: ' t---o} "",'"?",vtEw 19ErKl i:: ll [ .________i
leggtqe"d! ll:: I | :Distribution. I I ,; ll ll :
ffi31i1'1 ! lii i l:i ioty I er-rcrwr | :
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i
F -tt-*i - I - - - -(-Po"GFil PowERTRAIN
i sdltGr i irimari' ' I oR ENGINE
! ;il;n i nciis' 'lcortnor
hear.r 'l MODULE| , haat.. .tMvuuLE
I ; ;;ii;r i | (PcM oR EcM)
I | ------riPHOfOS6L ------ - ------J vtae al
(cont'd)
. I OR ENGINE' HOzS Primary i CONTROLI fruzs Fflmary a c(JNIHor Label VS celt Dumo HOzS' ' , primary | MOOULE
i l"dqanc6 vohags Befe{ence bell . heater i : !-1029 | (p-Q!/| OB: red$snce voltag€ Beftrence c€ll heater ' : HOzS | (PCM OB: insJt input voltage control control ; ; inpul I ECM), (rABELt Ms+) tlP-.vs-) (rp+) (Po2sHrc) ; , l"Y_ j r;!J?.*----i---
i
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I'*l*'l
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i iillirlr I
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: I annar-x | :
: I I see Grourd
23-13