ECU HONDA CIVIC 1998 6.G Workshop Manual

Power Door Locks (cont'd)
Keyless Entry Does Not Work In Any
Mode
NOTE: Before beginning, verify that all the
transmitters are programmed to the vehicle.
1 . Does the radio work properly?
Yes - Go to step 9.
No - Go to the neld step.
NOTE: For steos 2 - 8. refer to the schematic dia-
gram for the Stereo Sound System on page 150.
2. Are fuses 28 (in the under-dash fuse box) and
fuse 47 (in the under-hood fuse box) OK?
Yes - Go to step 4.
No - Replace the blown fuse, then go to the
nen steo.
3. Does the fuse blow again?
Yes - Locate and repair the short.
No- Retest the system.
4. ls the vehicle equipped with the optional security
system?
Yes - Go to the next steP.
No - Go to steD 6.
5. Does the keyless entry work correctly when the
security control unit connector is disconnected?
Yes - Faulty security system, go to security
system for f urther troubleshooting.
No - Go to the next step.
6. ls there battery voltage at terminal 4 of the radio
main harness connector (A)?
7.
=A
Yes - Go to the nen step.
No - Locate the open in the wiring between
tuse 47 and the radio.
ls there battery voltage at terminal 5 of the radio
main harness connector (A), when the ignition
switch is in the ACC (l) or ON (ll) position?
Yes - Go to the next step.
No - Locate the open in the wiring between
fuse 28 and the radio.
130-8
8. ls there continuity from terminal 14 of the radio
main harness connector (A) to ground?
Yes - Replace the radio.
No - Repair the open in the wiring between the
radio and the ground (G501).
9. Does the transmitter LED come on when any ot
the buttons are oressed?
Yes - Go to steo 12.
No - Go to the next steo.'10.ls the transmitter battery installed with the
positive side facing up?
Yes - Ensure that the battery contact tabs are
repositioned, then replace the battery.
Remove the key from the ignition, then
close the doors and trunk. Press the
LOCK button on the transmitter six times,
then go to the next step.
No - Ensure that the baftery contact tabs are
repositioned, then reinstall the batlery
correctly. Then reprogram the transmitter
and retest it. Use the procedure on page
1 30-4 f or transmitter programming.
11 . Does the transmitter LED come on when any of
the buttons are oressed?
Yes - Go to the next step.
No - Replace the transmitter and program it by
using the procedure on page 130-4.
12.Does the system work properly in all modes?
Yes - Finished. The system is OK.
No - Go to the next steD.

a
Horn Does Not Sound In The Panic
Mode Or With The Transmitter "Beep"
Feature On
NOTE: The transmitter has a Beep On/Off feature.
Refer to page 130-4 for how to tum the beep on or
off.
1. Does the horn sound when the HORN button is
oressed?
Yes - Go to the next steD.
No - Repair the horn circuit.
2. Does the transmittor LED come on when any of
the buttons are pressed?
Yes - Go to the next step.
No - Check the transmitter battery then retest.
ll the beep feature still does not work, go
to the next steo.
3. Recheck with a known good transmitter
reprogrammed to the vehicle. Does the system
work properly in all modes?
Yes - Replace and program the transmitter,
then retest. Use the procedure on page
1 30-4 f or transmitter programming.
No - Go to the next step.
4. With the keyless entry harness connector (B)
disconnected from the radio, run a.iumper wire
f rom terminal 16 to ground.
Does the horn sound?
Yes - Reglace the radio.
No - Repair the open in the terminal 16 (GRY)
wire.
\
Horn Does Not Stop Sounding
1. ls the vehicle equipped with the optional security
system?
Yes - Go to the next step.
No - Go to step 3.
Do€s the horn stop sounding when the security
control unit connector is disconnected?
Yes - Replace the security control unit.
No- Go to the next step.
Does the horn stop sounding when the keyless
entry harness connector (B) is disconnected?
Yes - Reolace the radio.
No - Reoair the hom circuit.
130-11

Power Door Locks
- '99-'00 Models with Keyless Entry
@
i-f?G;.-----l
i ?f*""t:::", i
L-,H-i{*q-J
UNDER-DASHFUSE/RELAYBOX
8 Y C419
vtEW49
SeeHOrns
15
Horncontrol
Grgund
lgnltioninputDooropeninput
K€yswitchInpul
Lighlstlashcontrol
17
ALK
c447
vtEw 5a
'12
LT GFN/RED
See GroundDistribution,page I +6,
YI
IF--.--.r-G401
I
3
ALU/f,EO
!r.lFN' z sEcuglw t5REOSYSTEMtsb'*nii'cro* =2
a, o"nt"ao 1lvlEw 58
(Not
(oPTroN) c447See HeadlightSwitch
C415 STEERINGPHora 6a LOCKVlEtt\/ 14 PHO|O 71
lgntlion KaySYrftchClosed with keyin ignition.
LT GRN/FED
LT GFN/REDSee lgnitionKey Reminder
UNDER-DASHFUSE/RELAYBOX
ALU/IVITT
a9
GFN
'14
GRN
130-12

rl,
;
Keyless Entry Does Not Work ln Any
Mode
NOTE: Before beginning, verify that all the
transmitters are programmed to the vehicle.
1. ls the vehicle equipped with the optional security
system?
Yes - Go to the next steD.
No - Go to step 3.
2. Does lhe keyless entry work correctly when the
security control unit connector is disconnected?
Yes - Faulty security system, go to security
system for f urther lroubleshooting.
No - Go to the next steo.
3. Does the transmitter LED come on when anv of
the buttons are pressed?
Yes - Go to step 6.
No - Go to the next step.
4. ls the transmitter battery installed with the
positive side facing up?
Yes - Ensure that the battery contact tabs are
repositioned, then replace the battery.
Remove the key trom the ignition, then
close the doors and trunk. Press the
LOCK button on the transmitter six times,
then go to the next step.
No - Ensure that the battery contact tabs are
repositioned, then reinstall the battery
correctly. Then reprogram the transmitter
and retest it. Use the procedure on page
1 30-1 4 for transmitter programming.

130-17
7.
Does the transmitter LED come on when anv of
the buttons are oressed?
Yes - Go to the next steo.
No - Replace the transmitter and program it by
using the procedure on page 130-14.
Does the system work properly in all modes?
Yes - Finished. The system is OK.
No - Go to the next step.
Recheck with a known good transmitter
reprogrammed to the vehicle. Does the system
work properly in all modes?
Yes - Replace the transmitter and program it by
using the procedure on page 130-14.
No - Replace the keyless door lock control unit.

Horn Does Not Sound In The Panic
Mode Or With The Transmitter "Beep"
Feature On
NOTE: The transmitter has a Beep On/Ott toature.
Refer to page 130-14 for how lo turn the be€p on or
off.
1. Does the horn sound whon the HORN button is
oressed?
Yes - Go to the next step.
No - Repair the horn circuit.
2. Does the transmitter LED come on when any of
the buttons are Dressed?
Yes - Go to the next steP.
No - Check the transmitter battery, then retest.
lf the beep feature still does not work, go
to the next steo.
3. Recheck with a known good transmitter
reprogrammed to the vehicle. Does the system
work properly in all modes?
Yes - Replace and program the transmitter,
then retest. Use the procadure on pag€
1 30-1 4 for transmitter programming.
No - Go to the neLt siep.
4. With the keyless door lock control unit connector
disconnected, run a iumper wire from terminal
15 to ground.
Does the horn sound?
Yes - Replace the keyless door lock control unit.
No - Repair the open in th€ terminal 15 (GRY)
wire.
\lr
130.19
Horn Does Not Stop Sounding
1. ls the vehicle equipped with the optional security
system?
Yes - Go to the next step.
No - Go to steD 3.
Does the horn stop sounding when the security
control unit connoctor is disconnected?
Yes - Replace the sEcurity control unit.
No - Go to the nsxt step.
Does the horn stop sounding when the keyless
door lock control unit connector is disconnected?
Yes - Replace the keyless door lock control unit.
No - ReDair the horn circuit.

Security System
- '96-'98 USA: HX, LX, EX; '96-'98 Canada: EX. Si
UNDER-HOODFUSE/RELAYBOX
t"'1,",*
,";;;i[ftT"fi'
'lffi;?'- 1
Dfstnoulon. fuO wnr I yEL
,-l_""__
UNDER.DASHFUSE/RELAYBOX
@@
.-"*luuu' ",-f
*'^'*'
,..1
f::T;J
I I
-Tl[3,*,,,*-"""
| |
%;1 l
FUSE 3
I I C5s1 !--Jt--JC423 (Not,i!r13 " u".al
_::;=ffi
HORNRELAY
PHA|O 129 (9A nodel)
{'96-97 models 3)
i'"---i[
il il
'98 model'96-97 models
I Horn Baitery tgnition I: control\
lgnition key II i*iiirr inilt eround IL------ -----J
- -l-s-f---- --------tiY
8LU FEo ll BLU aED I
;t,-
fon:*,
vlEw 21
8LU/FED
1
GAN
t'I
HORN
a-. =--
e.r,".o ll
, Ag::l^.aLu neo ll v,rwoo-'gr-u.neo sersarr R,I v,rw DU BLU/BEo See Seat BeltO -( and tgnition Keyeru neo ll Reminders
' + c4is
.,u*i,l( il,?l?.uo
r-{---- sTEERTNG;:E[t-:--.rsrEERrNG *.1
i l-flb'fitg"# i".e"er;;
-
|
ll-Ukevinisnition l I
:r:["_-----r
ilrff,i$t ! ilr,tlp:
lgnltion Ksy I LOCKSwftch I PHoro z1Closed with
c201
vlEw 30
133
J!@i---;""i ".*l
o"n"'o''
]t ____ __ __ _ _ _i__ _ _ _ _ _ I

';;;1; I r1-- --'I UNDE'------J-i i I 11'.1'.11 lSBi'"Driver .r ' HEADIIOriT '::
door !:t { t-- lPHo'o7unlock Unlock Lock | : L j,- -- -Jinpd input lpr,_j : -9lT1u.r^ -
---- Canada ---'------l
POWER DOOR LOCK ;CONTROL UNIT ,
k;i
L______jg:_l=,_______ juj_.r, _r_f 9_.-u:'F":;!-_ --",*tI
i !**""""I
*",*"[T*Fi
i
.",1
o*u*u'
,* -".11 t-J--'-----'-hff I
"ll-_-_il
|semooeriir f,
't
tr
18 f ia-eii,
L______d"t";tlo"n,o"n| """*",|ft"t'i fsEcuRrwLED,, L--J---------J",0. | | -liffi*
,i,Hfil _[l!,ffisHdsh
i ,of.--s L--d,---t--------cl-+-'dl "."""" !-------t - I, t - Drivgr's door Unlock Lock I Light I U
ii -F-o-:y-"1 - -:i"-1i3y. -TTi- - - - - :"ll'i - - ; 13'*" i q._"u_n'r !--1---- ---'l99,trRoL I
: \varst :l;#"b" I; ; $vitch Securiiv Bus Remote Bus Bus i I vttwte ll C422, f inqrt outDut d€,.az LED control data 0 data l , : I P1oTo 58-a- --' s Y---^a---.;f --.;Y---^;Y---:Y - - - - r ;-.tr'---
. ; UNIT
i *t Drtusr's door untock Lock i ugnt it - uavgrs ooor untocx LocK I Lrgn'
: LED control unloc* outpul outrut outpul ' flash- ': ' iontrot I sEcuRlw
--1-"' ---' I coNrRoL' 'i uNlri vatst, I VarEr tl PHQ|AT3: ; s,vitch Securiiy Bus Remote Bus Bus t)vtEwte, f inarr ornout d'de2 LED control data 0 data l :
7-1 e4re4lon
lfil Iffi;*l
[I$'':r*il
: 84 |, 85A 87A 811 |' Bt2 |' 813 |' vtEw68 | ! sae r.teadli
i i'=::t:::ti------r------s------r, -"** i : ! 8yJfu;; I I Vabt S€curity 8us Remot€ Bus Bus I Reieiver ! ; --_ _.._ ll
:i iffi$ input data2 ffiDul
datao datal iunrr !:""'"^l
(cont'd)
133-1

Security System
- '96-'98 USA: HX, LX, EX; '96-'98 Canada: EX, Si (cont'd)
I ooor
| #Iflinput
-----l sEcuRlrY
LT CRN/FED
LT GFN/RED
LT GBN/REO
a
[ "*
LT.FN,BED
i
.l:T,lT_t
i _ _ ;T_-----l Hui.'n*f' ffi i|. :-:?-'IINTEGB]ATED I PHoro 58 ll ,
!Eilf8t+ lffi'il* ! ! :
LE:E,jJ_i*- | I i
c503
c562
vtEvl 42
BLU/BLK EAA-{ i,i-"i
See GroundDislrihJtion,pag€ 1*10.
c401
------Sedan
Inpur
---{ F6,i,",. ooo. i:< "?;",o,"
trllnxswitchI CoNTROL! UNITI PHora 73
JvtEw sB
2
BLU/ALK
6
BLU/ALK
12(Sedan '15)
BLU/BLK
c411PHOIO 60vtEw 60
H
":-f
Or--<
".^ |l- G601
Light
TRUNK LATCHswrTcHClosed withvunK open.
LTGRN/FED
t___:'I______l
Tll """,
l-.'F-l DRtvER.s| 1 I DooR
Ir-Il3)lll8l,*=- ooor open.- PHOfOg6
LTGRN/REO i ; LT GFN/T,FED
*'^l ft?{,,' I iFRONTPASSENGER'S '
DOOR SWICH:Closed with :door open.PHOTO 96HH
LEFTREARDOORSWITCHClosed withdoor open.
rflf5ii' :
lCJEfii:t*,,,'i- .l^^r ^^6^ |
PHOfO 97
133-2

\.
!l f-+ iffi,iiilili. lsivvncrr I
ii^ / _;l"d:lt':"i i:ll*cK ( - t*.r.$r Ii!tff^.I^-.-f fl''i" I r
i! ti't|l ! rL---------J-{,5=;==---)"'*TA
"o'uetxret I Pflllodo
l:'iISECURITYSTARTERCUT RELAYPHOTO 53PTOIO 56 ( 98 modsls)vlEW 12
STEERINGLOCK
a
lll except CW
!'G";1cutouiput
SECURIryCONTROLUNIT
vtEw 58
MrrCVT
;BLKTTVHT
('98 model 5)
"a*-", Io
.I A/T GEARI POSTflONa swtTcHPHOfO 78STARTERCUTRELAYfrc433Bt( vHT
10aL|( vHr('98 model 3)4
BLU/BLK
--T6-';'d"r tlf3l
".,u".o I
T
I
cLUrcH llTNTERLoCK I
Slig:i* J,clutchpedalfullyoepresseo.
8LK/FED11t A/T GEARI POSTTTONa swrTcH
I
I
IJ
c433ot-r\
L!
BLKRED
".o"ro! BLvFEo.@
"'o"'r"f,
"'ot
ro'ffzr----,
SeeStartingSystemSe€ G.oundDistribution,page l4$.
BLKAVHTTY
II
L____l+.: G401PHOTO 57
STARTER
r::1 STARIER
I uo'r I soLE orD
tl
;-
".orr.i tr-
- -
to :l cat t
*"1.;
[;z*e'
an
L---J---ALI(RED
",#"It#f;,.+,"
rl r
L--------J
133-3

Security System
- '99-'00 USA: HX, LX, EX,
@
DX-V Si; '99-'00 Canada: EX, Si
@@t@
i
-
| ffii:-
- - - -
I i['"",llae' i
-
1 F;
- - - - - - -
F,...
- - -
I i"t]:.:*'
L-i:i--:::.J L-t----------i::=t s:i2 lf c353 8 Y C352 7 t' C4l9 1 v C423 {NotF#r""
",-^:"\P;!i?," ...'*lii:i',," I lft:i:3''.I::,wHr'cuN
I
*nr
l
"..
I
**l -"'"""[q
;Tto"
--^*[ftFi" --f ;ntn" "..f
t*x;,3'' u:;
-"r,"""Iq
--t----
See PowsrDisti brrtion,C4il8
i !,"1{}"' Batiery IEBP*' rsnidon f
! tgnition key vabr \.
L-----t:gg-____ _gs___ggg___-,r
lgdIon KrySwhchGbssd withkey in ignition.
-----J
STEERINGLOCK
1
ELK
c450
o
-^l
I
:':l
BLUAAIHT
See GroundDistribrtion,pag€ l+7.
fl
r: [-
- -;;----.T - - - -
--iC214 BLU/FEo I I BLU
;iP,li: 3o-.o< ffi8i?;g"'fu, I . 1"*.
".u,"?!..,u R8fr.,!3"Iii, ".^l .+i"ili""swtTcH
'l?,ii;'?,-
ffi8lli"?,1".* I Pag€ 14-6.
!---J r
133-4
HORN