Tune up HONDA CIVIC 1998 6.G User Guide

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

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

A/T
"ar"r"f
-L
I
I
\
FUSE 14(cRu€€ colrTnol)((Ef[rss)1,9'A
c501PHO|O 60vtEw 55
UNDER.DASHFUSE/RELAYBOXPHOfO 58
2 | cssl
FUSE 19BACX UPLtGxTSi7,5A
c4t9
vtEw 49
FUSE 23tsns)
'8YC4l9 , 12' lI P/rOrO 63 |
I BIK/YEL
ll
(Not l0
Used)
c801
.--t
YEL/REOGBY (17)or GFN
* = '99-'00 models except 016Y5
M/T
I
I
"ar"ao I
I
,::, * g;%,,'." I v/Er,v 5e
ll,*'
o""'":f.,
tl
ll
BACK.UPLIGHTswlTcHPage 110or 110-1
?
I
Ill:L-.J
KEYLESS :DOOR LOCK ,CONTROLUNITPage 130-12 :PHOTO 134vtEw 75
- '99-'OO models . .:with KeylessEntry
CRUISECONTROLMAINswrTcHPage 34
ll
STEREORADIOTUNERPage 130-2
vlEw68
'96-'98
- - USA| LX, -EX, andHX
ll
A/T GEARPOSITIONswtrcHPage 110or 1 10-1
snsUNITPage 47
(cont'd)
10-3
'86

cs01 c928l.l!9!9-e ofi|oNCONNECTORPHO|O 62
'99.'00
modals
A42A
tl
tl
AUDIOUNITPage 150
COMBINATIONACCESSORYPOWERSOCKET
tl
tl
STEREORAOIOTUNERPage 150
vlEw 6a
WIPERswtTcHPage 91
vlEv\/ 65
WINDSHIELDWIPERMOTOR
(cont'd)
10-7

* = '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

cRutsECONTROLMAINswrTcHPage 34
tl
ll
1Y
. - -' accessory
: security system :
i secun,rY ;
: SYSTEMi coNNEcroR :' (oPTroN)' Page |33
: '. rg;'3,, :, I vrfl,v 58
ili; . ----+
REARWINDOW DASH LIGHTSDEFOGGER BBIGHTNESSSWITCH CONTROLLER
:93' :gl"' Goug:*:FTi\" f3$??'o"'
llll bi:8d;fttie-i:9-9{EJ
aaal ,"|;fl9,,ff%;"
:f :1'L;,:;;-;__:_:::J
i:ir .:,;,-rr-E:
f
,-T,-"T-'-.
[_j,I=
,
lii
f ::'* ,I., l, I -l*,.Oerminals l '6)
'96-'98 modelspr+wi.ed tor
'99'00 modelspre-wired lor-_----accessory, security system
I srcunrw sEcunrrY :, SYSTEM SYSTEM ;i CONNECTOR CONi{ECTOR '' (oPTroN)
: Page 133-4
PHO|O136'
I- ABS -.
.-- USA: LX. -' .-' vo-Jl --', EX, and ilx mooers
vtEw 56
MOONROOF
!!P:',t MooN.
i*:r?, 33,o+"
'iii?,;) i??3;?'
' STEREO' RADTO TUNER ' ' DASH LIGHTS ,' P.da11o-, ' ' BRIGHTNESS '', ,;;;;- - : : coNTRoLLER '', v,iw;;" i i eage tte.t :, r-1 ,r r-1
: | | ::l I I
: | | ':l I. L-J . L-J
i"'r ii'I i
MOON-ROOFOPENRELAYPage 122ot 122-1
vtEw 15
ll
ll
'+--a ---'-*-'O
c50tPHOIO 60vtEw 55
r-1 r-1
tttl
lttlL-J L-J
,l
POWENwrNDowNELAYPage 120?HOm 59
ll
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.LIJ
14-7

_t
89c559
Wrth. - - MilrorFUEL , DetoggerTANKUNIT ' RIGHTpaoes 74 ; POWERanj sr -r , MIBRORPHofo 103 | Page 141-2
i-l : i-l
I ltl I
,,:l'it{;
FUELTANKFUEL INTERNALPUMP SOLENOIDPaqe 23-1 VALVEor1q: Page 25-1PHOTO 103 PHOTO 145
r-.| r-'r
tttl
tttlL-J L-J'l
:l'a,t,
- G501 and G502
'9&'98
m@els
NOTE: Wires shown without color codes are black.
DRIVER'SSEATBELTSWITCHPage 73
tl
tl
STEREORADIO AUDIOTUNER UNITPage 150-1 Page 150-1PHOTO 73 PHOTO 137vtEw 6a vlEw 74
F-.|F-.1
ttll
trtlL-J L-J-.I 'I
93'c557
vtEW 62
'99'00
modelexceprDl685
14
G501
14-9
!-6ssz

Horn
- '96-'97 Models
UNDER.HOODFUSE/RELAYBOX
c353PHOTOs
See PowerOistribution,pag610-13.""^T.!,-
HORNRELAYPHA|O 58
c214
vtEw21
BLU/FEO
1
VHT/qRN
I1
WHT/qRN
: :i-I:::--li i ! !'-'! fevtess
! a;fi."*
,,lr--J I::.-------J. , STEREO RAOIO TUNER
| | vtEw 68
HORN
l
h: c4o1PHQ|A 57
c430
Sse CruiseControl
Vehicles pre-wired ---lor accessorysecurity system
BLU
GBY
------- J
- -.! STEERINGWHEEL
6 g c411
| _vtEw 60
a,---li
cnv I
18 A C516
sEcuRtwSYSTEMCONNECTOR(oPTroN)PHO|O 73VEW 5A
40

rlr
*='96-98 models
\c50?(Iermlnals 11-16)PHOTO 51vtEw 56
DASH LIGHTSBRIGHTNESSCONTBOLLER4.I HAZARDI WARNING
i swrTcHa vtEw 32
I
I
IJ
3mllnput I
Olmsignalinput
BLK
Ia3)
r;
t;
lir
Lr2)'t9(,A
\
1 cRUrsEI CoNTROLi MAINI swrTcH
.l REAR ;I wrNDow ,
: DEFOG. .
I GER :
I swrrcH ,
STEREORADIOTUNERc96,'98models)
vlEW 68orAUDIOUNIT(99-'00models)
S€€ GroundDistributjon,page 1.{-7.I
I
IJ
""[__
ffermlnals 7-lo) : G401iHorost P4ofo 57
I
lr
I
I
f
i$9Y
114-1

Power Door Locks
- '96-'98 Models With Keyless Entry
(NotUsed)
c562(Ssdan 5)
lOY,laEntcalYatrt oil
SeeCeiling
"*. IPHaTo 611
""#!
__ It
Seenorns
,J:l
ffi
!l*1'*
Rf,Ltr: a ?'* seePower IU6il'
il"d!rui' i.^h::Eii:,_J"'"'ou
t 12 't( 9_s!-1 .
",.*.*,.
1 ".*..1 i#??'o
sYsrEM coNNEcroR (oPTroN) -?
1 UNDER-FUAE 14I t rusE r4: Grul8E COirIFOL)I / 0(Enr38)See Power i ? 7.1 c.. o.Di8tributlon. ! | X;i*:
I DASHI FUSE/I RELAY
STEREO RADIOTUNERPHOTO 73vlEW 68
cs03
css6
;f,;z3,'9,*-
14n 22
BLU/ N WHT/ II YEUWHTI ALK I ALU
B11l'B12l.B13
'I tF;?,'
-xlru
c5l6
86 |' 83
''tl
*, **
t"
[ro**:"[fi*'
""i,
;: I;"il"."'Y' o-ft 3[tnlt$ro" Fi:a
I "* |
F,%',3,, (o"''on)
ir?rt,:*,"." I """,,":
See lgnitionKey Reminder
door ooen. ' pHoro s7 .------- Sa.lan -
f - | csre iofiib$'-" "c,s;rg,_ !
'
| ! "* I
"i3tr9"" 'LU,RED I GnNioR,.
!=4 ,. L----- --,1"n,,'.
-'-l i
i*-i---- ll}gii I
*,*"1
I r7r------'t TNTEGMTED I RELAY I Irrlll,l.I INTECru$ED I RELAY| * s€€ | cotlrRol lBox
LJaBIEIIL i9,Fis," ieHo'osa
BLU/HEO
2
Btu/,|\mr
C415 STEERINGPHOTO 60LOCK
I
I
I
BLUAIIXT
Hffirp;,ruml*-*i E;ffi*,ru
4
ALK
-- ---- J
c415
YtEw 14 sss G,g{rndarr< Olstrlhdion,
RIGHTREARDOORswrTcHClosed withdoor open.
""L___J
G401
130-2