1999 HONDA CIVIC ac ground

PGM-FI (D1685) (cont'd)
(
UNDER-HOODFUSE/RELAYBOX
Se3 PowetDistribution,pags 1&13-
uYt%%,
WHT/REO I vr6wJ,
aaz4wxlnro I
sIDATA LINKcoNNECTOR (DLC)
8 Y C352ll Proro 8,""'o"n I u'* "
ll wwcnr
.4
*"r,o"., ll
IqA
S€E PowsrBistribution,pag€ 10-10.
i
ll
See ABS,
\:(
it31tlofo t'EW 59
c t31
vtEw 5!
F------: (x.irie Pt9q II oata Brakoainpuv switch I
output input \
\
II---J
POWER STEERINGPRESSURE (PSP)swtTcH
See GroundDistribution,pag€ 1+2.
WEC PSPprossure switchswitch inpllt inpui(wU) lPSPSvv)
;ry---
T
flffiii':Y- E"l 2
t--l "* |
t__________L
VIECvafuecontol
-----gl-812I'
GFN,^YEL
i
I
!
I
I
o"n,,,.f, F':t;"
r{r *."
I Jll l!,[.fi"'"l-i-J
l'?!-1 BRAKE SWTTCH
| / | Closed with brake
!-l-ij 9;'3,1ff'**""
'T
"*'-.1,
25-4

PGM-FI (D1685) (cont'd)
EGRvdvo Fuer ia ( tEGR In pres$uro \valvs s€mor nd*6nc6 lP i.snsor h.tsl lank tenF, Icont ol inDut volt|ce s8fi8of inDul inbut ssnsof ifix, I: control inDln voltac€ s€{tlor input inout sonsol ingJl ;I G.€GF} GGf,q N@a fiPg' .(PFoJ fiFO) ,L------- ------J
j
c2887
c150PHOTO 112
C'ro1PHO|O sl
c575
vtEw 7i
(FUELTA}IKTEMPEB.ATURESENSOR
H1Y
FUEL TANKPRESSURESENSOnPHOTO 116
THROTTLEPOSrT|0NCIP)SENSOR
EXHAUSTGAS RECIR.CULATION(EGR) VALVEand LIFTSENSORPHOfO 36
"""r":x
o
GRI{/BLK
4
GNN/BLK
GNN/gLK
c575
c401PHOfO 57vtEw 40
2
GRN/BL(
cls0
a
POWERTBAINCONTROLMOOULE(PCM)PHOfO 86
I
I
IJ
n"*r"a^[
'rcai/BLX llcre Ar--?
lsJiH,
I ground
I
25-6

PGM-FI (Dl685) (cont'd)
\'(
UNDER-DASHFUSE/RELAYBOXPHOTO 58
POWERTRAIN T
PrimaryHO2SInput(PHO25)
Secondary
input
CONTROLMODULE(PcM)PHO|O A6vlEW 70
S€s PowerDistribution,p6gs 1&5.
i (PHozst (sHo?srL-------
I
I
J,
Lti
J,
-'!
!
t
!
"l
See GroundDistuibution,pago 14-2.
G101PHOfO 33
i'tj I
:li
Sea PowerDislibution,pag€'1G5.
c't23
c123
PRIMARYHEATEDOXYGENSENSOR(HO2S)
c125
c125
SECONDARYHEATEDOXYGENSENSOR(HO2S)
(1
BLK
BLK
2
GFN/ALK
HOzS' HO2S
POWERTRAINCONTROL MODULE(PcM)
n€aterconlrolhgatercontrolI
25-8

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

- How the Gircuit Works
With the ignition switch in ON (ll) or START (lll),
battery voltage is supplied through fuse 15 and
the BLI(WHT and BLK/YEL wire to the vehicle
speed sensor (VSS). The sensor is grounded by
the BLK wire to G1 01 . The speedometer and
other control units in the circuit supply about 5
volts to the BLU/WHT wire. The vehicle soeed
sensor (VSS) intermittently grounds the
BLUMHT wire which generates a pulsed signal
in it. The number of pulses per minute
increases/decreasos with the soeed of the car.
Reter to th€ Service Manual (Section 23, Electrical)
tor specific tosts or troubleshooting procedures.
33-1

Cruise Control (conrd)
""t===j
= G401
Cruise controlactuator qontol
4BBT{
4
Se€ Ground Oistribution,page 1+4.
BRt{lv}tT
3
RED/BLU
10('96197 models 9)
'Cruige control'indlcator light codrol
wEw 56 Ss€ po$/er
-r+ Distribution,page 10-6.
CRUI6E I
c411PHOTO 60
GAUGEASSEMBLY
a
;lG;-
- - -
J,T"r"r,E;oAitr-usE z5 tusEi RELAY
IiF" 3g;g;; f,%,,-------' page.tG6. IL:4---:---JSee Dashand Console
;I
CONTROLrNrxcaTonUGHT
t-ffiII c0f 0r IIJ
I
I
E3BL|(
Se€ Ground Distribution,pag61+7.
I
IGro{nd
('96198 models 8)o
6nNAVST
""r1
I
11
ENN/ELX
aFt/Bu(
2aLu
c202PHOfO 23VIEW 1
c203PHOTO 18
CRUISECONTROLACTUATOR
\1----*-E2Y
34-2
l' G202

A/T Controls (All '96-'98 Models except CW and GX)
r.(
r5A see power I
--li$"i':,--iL-.At----- __*____..,,53-j"i__8 Y 93^s_1- 8Y C352'"'".u
I iii'i"' ""'o"* | i#?1o.'
ll see power ll wrr cnn See Power
la--- oisirioution, ! -t 6iri,iortion,
[--*
t"*tr*t1,'.':,:;i. wHr GFN lt page 10-13.
,i(with crurse 4) Al"'rl(-1 BRAKE swrrcH
| lClosed.with brake
Ir-I Il,?,|fll,"P'"""oL*--J
c18lr 82
"ar-"t I
I
See VehicleSpeed Sensor(vss)
ct31PHO|O 35vtEw 59
r< See ABs'
UNDER"HOODFUSE/RELAYBOXI
I
I
BFN
9
BFN
o
""il
SERVICE CHECKCONNECTOR
See GroundDistribution,page 14-5.
I
YEL
c124
L__lH:""".: G402
SHIFTCONTROLSOLENOIDVALVES
LOCK-UPCONTROLSOLENOIDVALVES
,. L ---- - - --.#ku" :::::'o f
---------tty"c;11,, l;-,f l;?t?:if,-:;tr *";.!, *"
c10 ,| Ds^'
I Lvou, (SKSV,
! Battery input Brake lwitch I
service nPUt ehin t;;;;i- Vehrcte Linear sotenoid Shift controt sol€noid Lock-up conkol iJ'[
'\
connector speed input valve conhol solenoid vatve controt tliiJ"it \uo trut tconrrol t: (scs) (vss) {Ls}) rLs ) {sHA' {SHB, (LCA) (LCB) {S-U) .--:-'--J
ct28
39
GFN/ALK
(

@@
i t FusE 13
LJ::-i1":--.i
---1 UNDET
| | ryql* !5ts?'n| ) iL"' li'r:,o,
rT ILJ---------J
--1 UNDER.DASH T ---1 UNDER-HOOD
i l$5ffif{61 !F'[]:':'* itte*- l"l;?::*'
L-g----- ---Y---J3 r-----
---------;r
".* I veuar-r< |, t_____ _1ft9#;,,
"* | ;-{ 8pfitli*| ".'"'* |
n"""
l----l .rr^ Page 14 1
-Fliirn"r"a-rq) 1' i====f:a&l?f''inarsra-rzr
"*l w;?"* ! .._ _ .l .- " .l *.*- I #it;;;--
-
lara-i--'' i I @DP':,-rt
r=- 9,lo,l' o.,., I *ol- --t PowER-(rGPr) rrcP2lI TRAIN
Countersl€lt so€€d
sbneor
lJt
"":I ""1I BRNJELX
"r, | "'0 I
!-
-CIG; - - - - - - - -*-r- - 1 PowERTRAIN
t sensor t"r'ii. | .c.gl,rfgL
I gourd ground I F;-r,r;*L------- J iuoro ea
Mainshaftspoedsensorinpd
Power input
#lvrrwzo
CONTROLMODULE(PCM)PHOTO 86
(NM) (PG1) {P62) {LG0 (LG2)
":[
;{ ]1
::l -X ;;
rfl lfi* *T'r+*
| | |
:T'-jru,,L#, il
3.[iF;" H ;,$5*" I
n:'r:T'"'uo
l #lt':.See GrourdDisttlbution,page 14.
(cont'd)
BRN/BLKBFN/BLK
39-1