1998 HONDA CIVIC speed

Ground-to-Components I ndex
f.,lONOTE: All ground wires are BLK unless otherwise noted.
GroundPageComponents or Circuit Grounded
Battery (BLKYEL)
Steering pump bracket
t+-rg ITransmission housing
l
G101
(-1)
G101
(-2)
14-2
and
14-3
ano
14-1
Powertrain or engine control module (PG1 and pG2 are BLK: LG1 and LG2 are
BRN/BLK), EGR control solenoid valve (CW, EGR valve and lift sensor (Dt6yS enginewith M,/T), Engine coolant temperature switch, pGM-Fl main relay, power steeringpressure switch (USA), Primary HO2S (D16Y5 engine with l\/,/T), Vehicle speed sensor,VTEC pressure switch (D16Y5/D16Y8 engines), CKF sensor (BRN/BLK), Transmission
control module (CYf) (Pc1 is BLK: LG1 is BRN/BLK)
Shielding betvveen the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor. Primary and secondary heated oxygen sensors.
Knock sensor (CWDl6YB engine), Mainshaft speed sensor (AiT except CVT),
I Countershaft speed sensor (A/T except CVf)
Shielding between the TCM and these components (CVT) (all have BRN/BLK wires):
Drive pulley speed sensor, Driven pulley speed sensor, Secondary gear shaft
speed sensor
Powertrain or engine control module (PG1 and pG2 are BLK; LG1 and LGz are
BRN/BLK), EGR control solenoid valve (D16Y5 engine), EGR valve (Dt685), Engine
coolant temperature switch, Fuel pressure regulator shut-off solenoid valve (D1685),
PGM-FI main relay, Power steering pressure switch (USA), Vehicle speed sensor, VTECpressure switch (All except D16Y7 engine), CKF sensor (A

except 81642) (BRN/BLK)
Shielding between the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor, Primary and secondary heated oxygen sensors,
Knock sensor (All except D16Y7 engine), i/ainshaft speed sensor (Arf except CW),
Countershaft speed sensor (A,/T except CVf), Drive pulley speed sensor (CW), Drivenpulley speed sensor (CVT), Secondary gear shaft speed sensor (CVf)
I Badiator fan motor, Right front parking/turn signat tight, Right headtight
G20214-4I Cruise control actuator, Left front parking/turn signal lights, Left headlight, Rear window
I washer motor, Windshield washer motor, Washer fluid level switch (,99-'00 Canada)
G401| +-o
and
14-7
Accessory power socket, Brake fluid level switch, Clutch interlock switch (M/T), Clutchswitch (lillT with cruise/D16Y5 engine with MfD, Combination wiper switch (Z wires),
Cruise control main switch, Cruise control unit, Dash lights brightness controller, Data
link connector, Daytime running lights control unit (Canada), Gauge assembly, Horn('96-'97 models), Integrated control unit, Interlock control unit (ArI), Keyless door lock
control unit ('99-'00 models with keyless), Moonroof close and open relays, Moonroof
switch, Park pin switch (A/r), Power window relay, Rear window defogger relay, Rear
window defogger switch ('96-'98 models), Steering lock, Stereo radio tuner (,96-,98
USA: LX, EX, and HX), Turn signal/hazard relay, Windshield wiper motor.....plus
everything grounded through G402
6-6

----" A/T -----t
DRIVEN PULLEY , ^.,.
;iftTBilis'".f l5Ftr,.""_
co'rinienixnn '. Pase 23'2
SPEED SENSOR ; .'-\.SHIELD 'F--.1
TDC/CKP/CYPSENSORSHIELDPage 20
ll
r_:.-i
23-13
t1
23- l4
tl
PRIMARY SECONDARYHO2S HO2SSHIELD SHIELDPages 23-8, Pages 23-9,23-10. and 23-11. and
--- CW ----.
TRANSMISSION ;CONTROLMODULE(TCM) ,Page 39-5 :PHO|O 121vlEw 69r____1 ,
tt:
tt:L----J,
. D16Y8engine
SECONDARY .
HO2S :SHIELD ;Page 23-11
l. - -..1 ;
tt:(D16Y/i D15Y8)Page 39-1
l.--.1
1l
r:--iBFN/BLKARN/BLK
A4
6FN/BLK' EFN/BI
i i srco"oo"t :' I GEAR SHAFT
I I Or MAtN!'tAt I. II SPEED SENSOR '
CW. - D16Y8 -, engine: N SENSoR SHTELD ,
i !i?il3li*u,, i
CWSHIELD :Page39-4,
CRANK-SHAFTSPEEDFLUCTU-ATION(cKF)SENSORPage 23-2
tl
ll
;I;..
26
i xNocx' SENSOR, (KS)' SHIELD
, Fage zJ-5
: F--.1
:ll
iilr-:i
----:.--------:
c442(Terminals 18-20)
c10.1 PHofo 125\HOTO 21 VIEW 54vtEw 29
'----- cw ----'
DRIVE
BFN/BLK
PULLEY :SPEEDSENSORSHIELDPage 39-4 :
1.---{ :I t;
cl30Oermlnal8'l-10)
vtEw 52
14-',

Ground Distribution
- Gl01 ('98 Dl685;All '99-'00 models except D16YS with M/T)
NOTE: Wires shown without color codes are black.
01685/_ D16Y5/ -.016Y8engrnes
.__-;,#'-_,--', engrne ;
, wEc: PRESSURE '
, swtTcH :I Page24-4 iI PHOTO 150: r -'l
:t | :
:l | :,L-J.
FUELPRESSUREREGULATOR ENGINESHUT.OFF COOLANTSOLENOID TEMPERATUREVALVE SWTTCHPage 25-1 Page 63PHOIO 143 PHOTA 33r-1F-.|
llll
lltlL-J L-J
POWERTRAIN olENGINE CONTROLMODULE (PCM or ECM)Page 24-3 ot 25-3PHOTO 86
----:y4
tl
tl
PGi,|.FIMAINRELAYPage 24ol 25
vlEw 18
tl
tl
3Y'I'I
excaptD1685
VEHICLESPEEDSENSOR(vss)Page 336FN/ELKERll/EIKcl01PHOTO 21PHOTO 142(o1685)vtEw 28
ct16Cferml-nals8n 4)
FltaFt( vttw 39t- .''iiti ' " D1685/D16Y5 engrnes ---'
t2
. ENGINE : :
i 933'?il-; i 5"T,Yf,*' 33i,"o, i
i lgfft" i I S.ir1".l^ soL€NorD :' Pase 63 : : ;;;;; - pase 24.i :' PHOTO 63 | | VtEWlO pHOIa124 ;, r-1 | , F-.t r-.r
:l | ;:l | ! | :;t | :,t | | | ;
j,f
ii T.__.,|,,,,,.
j
--
----- --l i otoas I Dr6y5 :
:------.1.--------.
14-2
o-----J

PRIMARYH02SSHIELDPage 24-7 ,24-8, ol24 10
tl
r_i
.--- D1685engine --.
' TNJECTOR I: CoNTROL ;; MoDULE ,, Page 25-1 ,t PHO\O 1aa :I vtEw 77
i r-- --r I,ll:
ill;
816l€I.--- D16Y8I englnes i. SECONDARYI Ho2s SHTELD :, Pages 23-11 I' and 24-11
I z-r; l.--.1 :
c131
(c101 D16Bs)
. ORIVE PULLEY
: SPEED sENsoR I. SHIELD ,' Page 39-12
l---:
: 1.--,1 ;
:l | :
c102
CKFSENSORSHIELDPage 24 2
tl
\..
BFN/BLK
------_I
SECONDARYGEAR SHAFT :SENSOR SHIELD ;(D16Y5)P.^a 'lO,1 ,oifu-alisirrrSPEED SENSOR :SHIELD :(016Y7/D16Y8)Page 39-9
F--.1
tl
rJii
t
rDc/cKP/CYPSENSORSHIELDPage 2O-2
tl
\,.
T
""","a* |
i
___r_
14-3

: , 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,-
I
I
See VehicleSpeed Sensorryss)
*[
".,^."
!
I
t
See NCCompressorControls
.r_l
See Charging Sysetm
(cont'd)
23-7

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

@----t UNDER.
I t FUSE 2s I p.4:!
| ) Iff" ses Power | ;"Eiii
I l------+ 3l'i:?'J:" tF,%.,L--*----il--l-J -
'o Y F;%.YELI v/Ew 55
f
--- - - - - - - - - - -;f '-iminats tz'zo1
I c+ lv'rwto
Y r--'1r-:-----'l GAUGE
see Power ! f* l"?i*,".. ! f,s";"ty"ttDisiribution, I , | vtEwTlpass10'6
i @$eFH,t* i
! T16r I
see see !y'c see I I
-ruil |See Startrnq ComDressor Charorno L--V---J----JFans System Conliols Syste-m - C5 y
I I I I
"".11-lro,..
| | | | o"no"n!f[?iSuo
GUN
I
BLUVHT
I
BLKnEo
I
GRNFED
f sVC131
*o I o, .1. o', ,l o.o .l
o"*o*l i[?1o"*
,r---U,a"i---strF-*-*"r"tr8*i-#%,.----;w;,---lneffi [it^'" tan control control ciutch reiay control Input | (pCM) -._ | puoroear AJc Atternaror Atternator l. iir*.i VSS rsquest FR controt I
i '[g3l i"R8!, ",gl,1o "'11'%, IrL------ --------Jc23 ll, l27Y "ur "rX
tlllBtUw}rI
I
BLU,FEo
I
w8r RED I wxr onr I
IIIIYYYY
See Vehicle See A,/C -'-dSpeedSensor Compressor(vss) contiot 3i:,""I"'n'"n
(cont'd)
25-5
I

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