1999 HONDA CIVIC ect

PGM-FI (All '99-'q) Models except D16Y5 with M/T and D1685) (cont'd)
- Dl6Y7 Engine
ct6
(
k
GRN
GRN/ALK
II
)
-l.a
FUELTANKPRES-SURESENSOR(See S/M1
BLK
GFN/BLK
GNN/BLK
6
GAN/8LX
8
GFiI/BIK
tis3 :INTAKEAIRTEMPER-ATURE(|AT)SENSOR
PRIMARYHEATEDOXYGENSENSOR(HO2S)
c'123
c123
cs68PHOTO 103
c401
vtEw 40
ct31
vlEvt S9
FffiflH
{
r,Bi".'#
H
r{
t
f 5:o#'""'"n
rtrt
BLK
at
It
lFueltan* TP \lpr€asura Rg{grsncs ssnsor ECT IAT Primary IF€nsor inpJt voltago input sensor input sensor inpul HO2S inout I| (rt^xn Naca Crpsr lscn - -- 1-ran -- -(p,ioi3i-- ,L------- -----J
BLKT^YEL
clt5(Ierminals 8-14)
vlEw38
contaol
24-8

Programmed Fuel Injection System (PGM-F|) (D1685)
NOTE: Fuse 31 is HOT with lgnition Switch in START (lll) and A'/T Gear Selector in PARK (P) or NEUTRAL (N),
see Starting System, page 21-1 .
@
ii6iir-
- -TFU'E;--- - -
I gI3'5"
y#*i[HtF{,iiH.frIHHi Jiffi" !['.iF{,$SNALr5a Y 7.54| - See Inleqrat€dSse Pow€r | --+ ffii;l'i; -- | Phoro 58i ffi ffi:- |EHF? i I
p--',b"
I iffij*,**.,* iFE^l
SACI( UP7,ta
'[-------------'[&T:1,
L.[E"Jj!i_.f;ff:]_j
*L:*
ilTrr,*ii "",""[*=
{ {-
--
;[n*n-
--ftr-'lf
tlGFNYEI
T HI I
rv
J &l?3.,"","'o-,rr ! ,o"on
! #""?,* I
'rT#
*"ll
'fi-----n
h,T5$B.I
J J lvA!::, !
[--iI I
!tl
I onr I can ver- | er-u onn
Itt
A arsl rrsl a24
;t--7;,i----&;-----{IAC valve mnt.ol
;YN
IT/U
ll
v
ToBonlaclngpage
4
FED
I T------i:il;
,oln,.r I """-f-T:
-l-Lri | |d
l
wtl
Iil
i-,"ffifi
- - - - - - -- - -;s,nl - -ffi'J -.'"-
I Oac* rjp input input A
I
I
I|.-------
{F;H:{"
I
I
-"1
,,..!.'-^-*'! PowER-
f,mihHin.
I (PCM)
lif''?;"
25
BIU

From B
WHT/BED
WHT/REO
WHT/FED
W}ITIRED
2
c401
vlEw 73
WIIT/BED
LJ*
;.;.il,
m
:il
"u"T.l,
m
*
a
From A onfacing page.
v
I
*"rr"a^ |
,L-:l'il
mm-'
1:-a PHO|O147
I See Ground8LX I oistribtnbn,
|
*'"J'.
v'a-
FUELINJECTORRELAYPHOTO 135
r S€s Groundarr< Dietribution.
FUEL PRESSUREREGULATORSHUT.OFFSOLENOIDVALVE
: c4o'lc150
vtEW 72
r-
IT
;.;..{
'm'
m'ill"'"-"'
,t,iJ,-,
i{
it.;:;t"'-
INJECTORCONTROLMODULE
See G.oundDislribution,pag€ 14-3.
Y
!
BFN/BLKI-J
I
I Distribr;tion,I pags r{-6.
ti: clot
y'o,JPHOIO 86
G101
-"----.< c.t 16- -J (Terminals'l-7)""'7lw;8"'"
Ground GrouftGround Ground
fu*gr PorYgrfl[J2) (rNJ3] 0NJ4]
;:[
2s-1
!-'
BFN/BLK

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

- 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

Gruise Control (cont'd)
- How the Circuit Works
The cruise control system uses mechanical and
electrical devices to maintain the car's sDeed at a
setting selected by the driver.
System Description
The cruise control unit receives command signals
from the crurse control main switch and the cruise
control SeVResume switch. With the ignition switch
in ON (ll) or START (lll), voltage is provided to the
cruise control main switch through fuse 14. When
you push the switch to ON, power is provided to the
cruise control unit and the brake switch.
The cruise control unit receives information about
operating conditions from the brake switch, the
vehicle speed sensor (VSS), and the clutch switch
(manual transmission) or the A,/T gear position
switch (automatic transmission). The cruise control
unit then sends signals to the cruise control actuator
which regulates the throttle position to maintain the
selected speed. The conlrol unit compares the
actual speed of the car to the selected speed. The
control unit then uses the result of that comoarison
to open or close the throttle.
The brake switch releases the system's control of
the throttle at the instant you press on the brake
pedal. The switch sends a signal to the control unit
by removing power from the normally closed brake
input (GRY wire), and providing power at the
normally open brake input (GRN/vVHT wire). The
control unit responds by allowing the throttle to
close. The clutch switch or the A,/T gear position
switch sends a "disengage" signal to the control unit
that also allows the throttle to close.
The cruise control system will set and automatically
maintain any speed above 25 mph (40 km/h). To set
it, make sure the main switch is on and the switch
indicator is on. Then, after reaching the desired
speed, press the SET switch. This sends a "set"
signal to the cruise control unit which, in turn,
controls the cruise control actuator to maintain the
set speed.
When you push the SET switch and the cruise
control system is on, the "cruise control" ON
indicator lights up.
34-4
(
You can cancel the cruise control system by
turning the main switch off . This removes power to
the control unit and erases the set speed from
memory. lf the system is disengaged temporarily
by the brake switch, or clutch switch, and the car's
speed is still above 25 mph, press the resume
switch: the car will automatically return to the
previously set speed.
For gradual acceleration without pressing the
accelerator pedal, push the RESUME switch and
hold it there. This will send an "acceleration" signal
to the control unit. When you release the switch, the
system will be reprogrammed for the new speed. To
slow the car down. oush the SET switch in and hold
it there. This sends a "deceleration" signal to the
control unit, causing the car to coast. When the
desired speed is reached, release the SET switch.
This reprograms the system tor the new speed.
Refer to the Service Manual (Section 23, Electrical)
tor specific tests or troubleshooting procedures.
(
a

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
(

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