HO2S HONDA CIVIC 1999 6.G Manual PDF

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

Connector ldentification and Wire Harness Routing
Rear Heatod Oxygen Sensor Sub-harness
Connector or
Terminal
Number of
CavhiesLocationConnects toNotes
c7a1
c782
Under middle of dash
Under middle of dash
Main wire harness (C432)
Secondary heated oxygen sensor(Secondarv HO2S)
Fuel Tank Pressure Sensor Sub-harness
Connector or
Terminal
Number of
CavitiesLocationCono€cts toNotes
c791
c192
c793
6Middle of floor
Left side of fuel tank
Left side of fuel tank
Floor wire harness (C568: Coupe/
Hatchback, C574; Sedan)
Fuel tank pressure sensor
EVAP two way valve
FUEL TANK PRESSURE SENSOR
23-60

Power Distribution
Circuit ldentification (cont'd)
IGN|T 0N SWTTCH (ACo)lFrom page 23-69)
*3 (or PNn -
Anernal0rVSS
HO2SEVAP conlrol canister vent shr,,l vafoeEVAP Flrge conrol so enord valveECM/PCM"
Back-!p lighls
SRS unri (VB)
i.1 :'96,98 modesr.2 : 99 mode*3 :GRY ('96-97 models):GRN (98'00 models)
sLrwHT+ Ft"t:itJY;i
BLI{WHT -}rcutcwt.,
BLKr'r{HT - Chargir! syslem trghl
InteEalei conLol unft
Shin lock soenod I r!/r\lnleiock mnlrol un I J '- '
Galge ass€mblySRS indicalor lighlABS indicrtor lghlA/Igear posilion nd€lorl d,mmino qrcu,luru6e notcaoa ) -
Inlegraled conlrcl un t
Windshield wiper molor
GRN,B-< ........- ImeEaleo cortolull| (viawndshieLd wi9el swllci)- wrrdsi erd washer .nolor(Via swrn)
Accessory power sockel (ACC)
oplioial conneclor (Acc)
Audio unil
UNDEF.DASH FUSE/REtAY BOX
No 1s (7 sA)
POWERWINDOW RELAY(To page 23-71 )
N0.25 (7.5A)
GBN/OF -- Moolroolopel relay- MOOlrOOldOSe relav
(Fusoirelay box sockel)
YEL-
(Fuse/relay box socl€l)
Y_ *,n,,*
23-70

Ground Distribution
Circuit ldentification
(To
I 8an6ry ground cable
: Engine ground caue A
Primary HO2S (M/I) IEGR valve (,tffT) | {Ot6y5 engtne)EGB conrol Isllenoid va ve (vT) lwEc flessure switdr (Bl6A2engine)
vss
PSP swtch
Baaery
BLK -* bqiu"trl'ff lso",ilE o;l?f ;".,L ur,u" "ou.,,r,oo, "*'n",
Trlnsmission ho!gng
BLK
BLK
BLK
BRN/BLK
I
I
Vp?oe 23-76, 77)
'96-98 models'99-00 models 816A2, D16Y7 engines
99-00 modors D16Y5, D16Y8 engines
s,-( -i-t;lBL(- pcM Frman reray' E ) tc" 't*' tn''n''*t'''
wEC pressurc sMch(016Y5, D16Y8 engines : 98-00 models)
@
E
Efal
i Engine grcund cable B
: Engrne wire hamess
(cont'd)
23-75
El , M"in ttire hatn"."

rt
'99-00 models:
(5i%ease)E>4 BRNiBLK
i.,.,].',,-
ERNi BtK
BRIVBLK
BFN/BLK
BRN/BLK
BRN]BLK
BRIl/8LK
BFN/BLK
r * s r;l ao^r,qt r
CKF s€nsor 1t -1ll ELU/FEU
Knoq( sonsor (r15J '-l !l r{EUl6LU
P maryHo2s*?H wHT
Mainshafl speeo ssnsor -1ll fiEU
Coutershall sp€ed sensor -+F ] BLU) ..",r.u,.0n
016Y7, Dl6Y5 (CW) ongines
;;=-"r,i,-l
Ly"::::::::
I Secondary Ho2s :{ WHT/RED-;'4:v-..1
RED/BLU - I
wHT - f rau,rru (an )
pgTpse- J
*1i016Y5, Dl6Y8engines *4:016Y7, Bl6AzerEines lcont'd)*2: Excepl DI6YSengino ([VT) *5: D16Y5, D16Y7, D16Y8Bngines* 3:Dl6Y5 sngine ([VT) *6:B16M, D16Y8,016Y5 (CW)engines
015Y5 (LVT) sngine
41-.1
Dfiv6 prirEy speeo sonsot -1l l hEL,bLU
Driven gr ley sp€ed sensor -- F I WHT
Secondary gea sian sp€ed sensor .-ll WHT/RED
E : Engine w re harness E : Rear h€al6d orygen sensor sLlb harness
IIJ : Main wire harnsss ------ shielding
816A2, Dl6Ygengiftes
23-77

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

'1 = '96 D16Y8 engine: All coupes'97 D16Y7 engine: California Coupe, California Sedan LX'97 D16YB engine: All coupes, California Sedan'98100 models: All except D1685-.t UNDER-DASHI
I
\
'--1 $NEGRATED
| !s$il:'Ptlofo avtEw 67
c42'lPHO|O 63vlEW 50
ct01
vtEw28
FUSE/RELAYBOX
\
I
T
D16Y8
13
c568
ELKAYTIT
BLKAVHT
1
143
EVAP BYPASS : :SOLENOIDVALVE . ,Page 23-9,23-11,23-14,24-7,' '
24-9, ot 24-11
H02SPage 23-11ot 24-11pHoTolo4 ; ; PHoTo 43(See S/lV page 11-9lor'99-'00 models) ,
i1[
":"[-lT:T
l+Tli'::f;:r i"'{' l;;;]fip;:
I Fs'[
**,
I il i I ii !-l s];$:i i Ii t--l
i ! i'*[ iEi.;*Ti lii
'fl*-i
i li itqii-*
i l il[l?ti
lii iiii;:" i:li
i trr i I i.r^.:.'.'.'i::::;j i !' i
: i i , I i ,+e;::"," i : ! i
itI
i! | i | :".*lfigi3li;ts's"";:tg;u'u^.i : ! :
iv7"-- : rA : *'I i i osl :
; CoNTBOL , r--1
i liiit- i i_j i i_j #s,{;'i' i [__j
ffnih'*'
i 23:11,23-t4, , EVAP PURGE I pRtMARy Ho2s : ' powERTRAtN :| 24-7,24-9, ' CONTFOL ; Page 23-8, 23'10, 23'13, , ; CONTROL ,' ot 24-11 ' SOLENOIO , 24-7 .24-8. 24-10. ot 25-8 ' , MOOULE (PCM) ,' pHoTo 3s : VALVE I PHoro 40 ' ' Paqe 39-8 '
| (see s/M : Pase23-s,23'11, : ii3l311l l3;ll Pl?191,.,"^,, : ' orSe-12 :
' PHoTo 39 I vALvE | ' Paqe 39-6
: (See S/M : Page 23-9, 23'11. ' lHqI94?199 99 0.16Y!i - i ' or 5g-tz :i bi-gllt-g i zs:tq, zc-i, zc-g', ' PHoro 733 ree 00 D16Y8/816A2) i '. in6i "i i
:':1T:9' ',91"?i'l; i------ ------j ".-':-*-'1. -----j(cont'd)- - - -::-:-l - - - - t PHO\O 37 to16Y7l
1(}5

----" 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-',

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