1999 HONDA CIVIC Page 10-5

Power Distribution Schematics
Power Distribution schematics show how power is supplied from the positive battery terminal to
various circuits in the car. Refer to the Power Distribution section to get a more detailed picture
of how power is supplied to the circuit you're working on.
From Battery to lgnition Switch, Fuses, and Relays
Individual circuit schematics begin with a fuse. The first half of Power Distribution, however,
shows the wiring "upstream" between the battery and the fuses.
CYLINDERBLOCK
tl
tlL.lt J
",-* f ]fo,o
i BATTERY
IIII
-
----------------Y-?-
ruse so I ruse as I ruse ga | ' ,s. ,a I =u. - srl ruse aai ruse qr I ruse so I ruse sr i ruse iapowEF csw FUsE Bc, \F,.n .;,cren ooon \coounc cor,r. \sun noor powrnw'NDowf50a {* .i1-;.*"1liT""fi3f* f5# fffi'*"f'* fS?'*
- - -L - - -. ... Ji - -.J.- - - -e- - -l. - - -La - J- - - I - - -
"";%,, Y rtr,' .9 l' -%,t",,vtEw47 I ! See Power Dastribution,w - vH-,alr. lt - pages 10,10and 10-11.
' I ---il 9,1?-l--4F--?-
i I
t.urr, 'rrr.,
t i!?'.,,?"" t::=. l ty::.1----.-
-
i
a I r(op-B) .{Noru3€d) J$ifl#ii Jtocl }3fo**."".o'
t -L - - -L - - -: rJ:e'- - -Ei s+s-r -.Fl-J-Jrr.-.
It-STARTER | !Pase 21 ! t FUSE 31I "rn*i
I f
*
i.Jr;-t
i L_i***'" iL-------J
ilr------!
FUSE /I4 ' FUSE 47 ' FUSE 5{' ' FUSE 51' FUSE 52
rlr
OOOB \COOLING CON. \SUN BOOF FOWER
t3f* f5# fffi*" f'* fs?'*
See Power Dastribution,pages 10'10 and 10-11.
T101
34
ALK
4
GAN
I
I
I
I
I\
\I
I
I
FUSE 8DF POWEF SEAT204
FUSE 6ECU204
FUSE 5A/C CLUICH(FN HEATEDSEAD204
C901 C921 {NotPHoro zz OPTION Used)v/EW22 CONNECTOBSee Power Distnbution, page 10-2.
1
FUSE 4
FADIO104
c901
vlEw22
FUSE 12(BUltNrrGLIGHT)
FUSE 19R/C MIRROF
YEL
7
i-f,r-- 't PowERI uon- I Wlt{DOWi racrs i RELAY. t P^da 1tL-J P;dr1ii-
FUSE 3CONOENSEF FAN RELAYCOOLING FAN RELAY
To Fuses 17, 18, 21,and 24, for details,see Power Windowspage 120.a
ll
ll
ALTER-NATORPage 22
f102
c330
See Power Distribution, pages 10-4 and 10-5.

Ground Distribution (cont'd)
- G601 (Hatchback) and G761 (Hatchback)
NOTE: Wires shown without color codes are black.
LEFTREARTURNSIGNALLIGHTPage 110-7
LEFTTAILLIGHTPage 110-5
LEFTERAKELIGHT/TAIL LIGHTPages 110-5and 110-17
()
LEFTBACK.UPLIGHTPage 1 10-1
RIGHTREARTUNN FIGHTSIGNAL TAILLIGHT LIGHTPage 110-7 Page 110-5
RIGHTBRAKELIGHTiTAILLIGHTPages 110-5and 110-17
()
: HATCH; LATCH, swrTcH' Page 80-2' PHO|O 11A
:l I;l I
. BLU/I BLK
i2
'98-'00
models ' :
:t I
i L-J
czsa izlczszPHO|O 126
LEFT RIGHTLICENSE LICENSEPLATE PLATELIGHT LIGHTPage 110-5 Page 110-5
/-.t r-t\_,, \_,,I(98-'00mooets2)
G761PHOTO 109PHO|O 132(98i00
RIGHTBACK.UPLIGHTPage 1 10- l
c605
vlEw a
HIGHMOUNTBRAKELIGHTPage110- t7
G601
: REAR; wlNDow. WIPER, MOTOR' Page 92
r-t lr-t\_, \_,,
II
ll
l-y-
14-12
'.!

Charging System
See PowerDistribution,pag6 10.
UNDER-HOODFUSE/RELAYBOX
FUSE 15ALT€IIIAIONsP SEII|SOF7.5A
I
t
USA
' BLKAVHTBLKI"VI/HT
-)l,------J
vtEw 50
See PowerDistribution,page 10-5.
* = 96-98rAllmodelsexcept 01685'99 '00: D16Y5 withi.4/T** = '96'98: All models'99r00: D16Y5 witht\4/T, D1685
BATTERY
ALTERNATOR
See PowerDiskibution,page 10.
FUSE 41BATTEFY804
T101
L-----
ELECTFICALLOADDETECTOR(ELO) UNIT
'l
;l
:l
:l;l
:l
tl,l
:l
:l
G1!
- -I POWER-I -. ^ "'.1 , I rnlrn or
(.A1e)Y '(' C17)c2[ : cs
i ELD unit input i ietCrHe! ' ! coNrRoLI I MODULEI Art€rnator : lllerlato.r I (PCM or
i controrsrsnar i t",fl?il"' a:"^y]L- ----,1- - - - J Pq_oro 3'
*. B,'"',1; :.i
i:1E15_'_
_. i
GFN/FED
r i6
GFN/RED
A30
f D16)WHT/REO*Fi
See Ground IDistribution, Ipage 14-5. I
YT
L]
' ""- PHA|O
,.^;?f, :('c;3)T BLXYEL
I i 'r", ".o II'HT/ ll ' U,zscnrl :-' oi .l
, L : (c'r9ill-_- 'c11" 2)u
l9nitionrnput
LOaO
Ground ourpur
22

t)
POWERTRAINorENGINECONTROLMODULE(PCM or ECM)
BLKryVHT
fFUSE 15AL1EA|{A]OAsP sExsoa7.54See PowerDistribution,page 10-5.
UNDER.DASHFUSE/RELAYBOX
t\-I Secondary! HO2S input, (sf,o2sl-------
- ,.-"., -^,o"::.f=_
rtl
ll er-x'wnr
g A crer
""",".--*'i-"fj*"
c432
c7a2
-l--
:
$i
see Power
SECOND- F rl EVAPORATIVE ' f-tl-l EVAPORA- ;ARY I I I EMISSION 'I I ITIVE
8iiE,R I ltt l !'JiiABi*"'il ltt l Et,i"'J""sENsoR I Jll I soleHoro 'l )ll I i9x1661
!t"93:t IJJ vs!:", iLLl !Ailf*'",,
: I 'l"u.t
".*,^,'"rf I ,----j I l';i";?'*
2 J:--;t, C432 ll 96 model: all Coupesptlofo /6 i 97 model a

coupes,
BLKI"V!/HT
--1"r", 'Y :t f iiiv!3 Y iiol-o ao
onr.r wxr I I ll catrfornra Sedan ll 9 g c49 !s8 mocJr, iri I a il!9.!a^5?
""""._l**t' ,L-
r I i,,o"n,n",l "f,",ul,,
-"-.1,=l
;^[::Ttn*- I i I
""1
,
+ g:%,, *"[
il I :D13 A A5A A15 A , A2gA 428 |'-----=,-- -=-7-tsHo2sc) tso2sHTci {Pcs) | {vs!,) (2wBs)Sensor Secondary EVAP purge ' EVAP control EVAP bypassground HO2S hedter controisolenoid : canister vent solenoidt control valve control , shut valve valve controlt , conkglttb------
BLKAA/HT
BLKAVHT
1
c401
c568
BLKTIVHT
BIK
FED1
Distribution, '
page 10-5. :
, BLK' YEL
SHUT BLU
(Terminals 1-10)
vtEw 52
! Ii{:',+'i":
II
23-11

PGM-FI (All '96-'98 Models except D1685; 'g$.'00 D16y5 with M/T)
- D16Y5 engine (cont'd)
r-------1POWERTRAINOJENGINECONTROLMODULE(PCM or ECM)
c125
---------1
FUSE 15
$t"t!ilS8" see Powert.5A - Distribution,page 10-5.
UNDER-DASHFUSE/RELAYBOXSecondaryH02Sanput(sH02s)
D14 I'
,n"r,"ao I
rtr
lt I
I
i,tjclt5(Ierminals'1-7]T I 1
vtEw 3a
HI
lffiq,m
,.ul
- '' :
3A-3uA---g'A--i--**----f'I :(sro2sc) (so2sHrc) (pcs) , ryse -"-*"i - l! 39Y.E!:
;:m AA8r"y- rvffi's" i euo8S:noo' E\"L'Yssl 'iH;in';'
hearer sorenoid : :ill*',":* ;:fl'".t"* iiF!ii"te'-control valv6 control I controt ___-- ll?|Et",".,:
T
$
See Pow6rDistribution,page 10-5.
BLK,/li!/HT
BLK,\II/HT
1
c401
c568
EVAPORATIVE :EM|SSTON ;(EVAP) PUBGE .CONTROLSOLENOIDVALVEPHOfO 38
EVAPORA.TIVEEMISSION(EVAP)CONTROLCANISTEFVENTSHUTVALVE
EVAPORA-TIVEEMtSStON(EVAP)BYPASSSOLENOIDVALVE
(See S/Mpage | 1-9for'99-'00models)
'98-'00
mooets
c568
c4o1 :
PHO|A A5vlEW 59
11 g Ct31
See GroundDistribution,pag€ 14-1.
Y
I
anver.x
b9^
23-14

Vehicle Speed Sensor (VSS)
il';;---lI ALTENNATOA I
I I""::,",,", !
Lr_f1l_i
".*,1,[ 9#":1"
\.(
UNDER-DASHFUSE/RELAYBOXPHO|O 5a
I v"ni"t"
l:g9qd
iineilt i
12
CRUISECONTROLUNIT
vtEw 43
I v"ni"p I
l:p"gd I
I'T$, I
TRANS.MtsstoNCONTROLMODULE
FCM)
vtEw 69
! !iio',6T""f
EtuwHr|
!y:ll*!Bb'^i1?'J.'
! so""oo- ! iffiilr*J l;6';irtE!;i#:*! il il iiTs'l, iipEr',r"L---J I I L - J D.^..1*B11 Y [ [ (-C18) Y vtLNTo
l;i"i;'! [ [ l'ffi, liib-r,ro,ecu1
See Power Distribution,page 10-5.(
lgnitjonVohielespeeoouptn
Ground
Y' """-' Oerminats 1.t-13)
vlEw 52
VEHICLESPEEDSENSOR(VSS)PHATA 35
= '96- 98: Allmodels except D1685'99 00: D 1 6Y5 w th Lr/T= '96-'98: All models'99-'00: D16Y5 with M/I D1685
.i,
a33

A/T Controls (All GX and All '99-'00 Models except CVI)
a
i-l-;;;
-rffi;----t
H*B'""i
! l r*-* i iflsln- :eepower ii|iii '
L_l____ _-i"utuiF#'i8 Y 93-s_1 SY C3s2 :""'".u I i,i?lol *"'o"n I iffl,1of
ll see eower ll wxrcnl - see power :
@
c131
vlEw 59
See GroundDistribulion,page 14-5. 1
["*
t*,t*;,,
;ffi i-
iilnirir,
Distribution,page 10-5.
,D5
, ry8 SOr)I Power source
BLI(YEL
il
10
WHT/BLU
821
(VBU)
Banery input
Servicecheck Vehicls Linear sol€noidconneclor speednput
' for solenoid valve ; \
Lock-up controlsolenoid valve (valve control circuitShift lock \
c'124
a
inpulinput
{8KSW)Brake switchInput
Shilt control solenoidvalve control
:::l
",:::[""::
. | .ir:Til**'
''lizll:l,,' i*'";l'-.----.'
O rr<( !!e"A65,
""il
SERVICE CHECKCONNECTOR
c12A
LTGRN/
I
SH IFTCONTROLSOLENOIDVALVES
LOCK.UPCONTROLSOLENOIDVALVESL__l+: G402a
il*-
except GX
See Powerr?F.| BRAKE SWTTCH
| | Closed with brake
| 1-I | !;€ja oeo'"""o
39-8

See Wiper,ryVasher
@
FUSE 30l|lslFl,|tEl{luotfT3
UNDER-DASHFUSE/RELAYBOX
I
t
I
I
I
.1 1
-t
\
\\
Sea PowerDistfibution,pag€ 10-5. iz
FUSE 15ALTEi}IATORsP 8S$80n?.54
A8
7'5A soe Headtight sss Power- Switch, Distibution,page 100-t. pags 1G7. foINTEGRATEDCONTNOLUNIT
vEw af
\
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t
I
,
I
I
I
a-------
FUSE 26FR \I/IP€gFi WASTIEF204
Ught8.ONnemhderCircrti
lfllsnl|literWip6r RelayCircuit
Combin€dl,Ylper/WarhotCireuit
*I "'r
II
II
-----[---t-----
""r,".* I ".u-"r l
tt\--
See WiperMasher
70-1