1997 HONDA CIVIC Horn relay

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

Security System (cont'd)
- '96-'97 CX and DX Models (cont'd on page 133-10)
NOTE: Wires that look like this e:=---{ are pan of the optional Security System harness installed
between factorv harness connectors.
@
FUSE 52toRr{,sTorlrotirt5a
STEERINGLOCK
c20'lPHO|O 23vtEw 3a
HORNRELAY
".,,".:J[--
'I
"""'
[*u""''"h
GAY
GRY
.--.tf
rv lla:
"ll
114 H(al c(.-t
+
)e florns
Horn RelayConnecto.
sEcuRrwIN.LINEFUSEHOLDER
ALK,YEL
11
Horn Batiary lgnitionSECURITYCONTROLUNIT
vtEw 58
c214
vtEw21
/1H?#,
See Seat BeltO ___________1F_( ano ronrl|on
".u "eo ll c415 KeY Reminder
" U c+ts 'i!,1fl0
eLu,,,viiY ll9,'9.60
BLU/FED
BLK
gd!ryi--],.,,.*,"o
ilnffi"* !"*"
I L+ kev In ignition. IL--ll------J"'utTf,
"o',uoLK ll PHofo46a
G401
"",,""i"1---"-",-,""rf &f,.f,,,
t A-----1.:A Ho'n Reray
ll ll Connector"""o"n
ll
*""T
ll1A-------/{
r-------'l lonltion I
iltr? _ili* !'"*' i
!i*.1-/*.,i !I L---*--J It--"-.*-*t------J
uAcgtar-x,ver" ll eroro oo
133-8

V
- '98-'00 CX and DX Models (cont'd on page 133-10)
NOTE: Wires that look like this e=-* are part of the optional Security System harness installed
between lactory harness connectors.STEERINGLOCK
UNOER-HOODFUSE/RELAYBOX
HORNRELAY
PHOIO t35 ( 99 0o models)
;.;l
HOBN
c926OPTION
i-t
t -fii;r,'im:";
9"" cnv llConnectorHorns ll
PHO|O 62
sEcuRrwIN.LINEFUSEHOLDER
,"" l-l--';] L ii+ TBriE:,, ;.'".*"' ll
'Jl '' lL--l[JL---:-----------C
i. rl::t ;;;[.?jsor+3r i
lff],
-,
;,:"1.
- . :-
- -
;_:
- - -
tt*
I ii}"*:*'t--J'''*uo lc,o,na i Y#,iln,"o* i 9JlflB'],iff, iw,E"L:;; -'- ---J ---.l.--- -J------- Jrs y- - -i'. - -s-J[- - - -
l-
- ]sf
ll ; eLu ll ' BLU REo | | ".r,".o 2 gLu neo see seat
i 'fi i ".,".oii----iiiu
-
[tJ.li'fll5"t
i r{i y*sr.. : z!9X;2""|"i!'}?.""
ll i l/rlu'-'u"i
"i-jttz---'rsrEER,
Fii;i," ll ;i'".'J^ ,# i iQffi*"it*"ll : ll L--IF-----J*-
ll
' BLK
ll i
"'u*TI
"o,u
' 11 ' --- --;' Bett and
SWITCH ' BLU^YHr f i;;;i;" l{ -l-'- ' -';r{iss"-
STEERTNG
, r atv r- lt PHofo 60. - - - -. _8!K ll v/Ew '4
: G401
fl
-1[::_5J*nt
s Y c3s1
,n"r,".o I i[o"to,'
, tr ft?;","
liuF;lt"ls'rs?rl
iL:"::Ifui i'--T'Il,].----r
Itr
133-9

Ir
Security Control Unit Input Test
The following tests are performed with the electrical conneclor disconnected from the security control unit.
\;
12345X67I910
1112131415rol171819202122
TerminalNo.WireColorTest ConditionTest: Desired ResultPossible Cause il result is not obtained
2LT GRN/REDEach door opened,one at a timeCheck for conlinuity to ground:
There should be continuity.
Faulty door switch
An open in the wirea
3BLU/BLKTrunUHatch openCheck for continuity to ground:
There should be continuity.
aFaulty trunldhatch latch switch
An open in the wirea
10WHTUnder all conditionsCheck tor voltage to ground:
There should be batteryvoltage.
. Blown No. 6 (3A) fuse in theunder-hood fuse/relay box(HX, LX, EX, DX-V Si)
. Blown No. 54 (40A) fuse in theunder-hood fuse/relay box (CX, DX)
. Blown (3A) fuse in security in-linefuse holder (CX, DX)
. An open in the wire
11YEL(BLK/YEL
cx, DX)lgnition switch ON (ll)Check for voltage to ground:
There should be batteryvoltage.
. Blown No 3 (10A) fuse in theunder-dash tuse/relay box(HX, LX, EX, DX.V, Si)
. Blown (3A) fuse in the security in-linefuse holder (CX, DX)
. An open in the wire
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
aPoor ground (G401, G402)
An open in the wirea
t5BLU/RED
lgnition key insertedinto the ignition keyswitch
Check for voltage to ground:
There should be 1 V or less.aPoor ground (G401, G402)
Faulty ignition key switch
An open in the wire
Short in the wire
a
a
algnition key removedfrom the ignition keyswitch
Check for voltage to ground:
There should be 4 V or more.
18GRYUnder all conditionsConnect to ground:
Horn should sound.
. Blown No.52 (15A) luse in theunder-hood luse/relay box
. Faulty horn
. Faulty horn relay
. An open in the wire
133-15

Parking Lights Do Not Flash In Any Mode
(HX, LX, EX, DX-V Si)
1. Do the parking lights, headlights, and taillights
come on with the headlight switch in the HEAD
oosition?
Yes - Go to the next steo.
No - Repair the parking light, headlight, or
taillight circuit.
2. Does the horn sound when the transmitter
PANIC button is oressed?
Yes - Go to the next step.
No - Go to the "Horn Does Not Sound In the
Panic Mode" test on page 130-11 ('96-98
models) or 1 30-18 ('99 models).
3. ls there battery voltage at terminals 1 and 2 of
the light flasher relay connector?
Yes - Go to the next step.
No - Reoair the open in the WHT wire
behveen fuse 48 and the liqht flasher
reray.
ls there battery voltage at terminal 4 ol the light
flasher relay connector?
Yes - Go to the next steD.
No - Replace the light flasher relay.

133-25
5. With the light flasher relay connector
disconnected, run a jumper wire from terminal .l
to terminal 3.
Do the parking lights and taillights come on?
o.
Yes - Go to the next step.
No - Repair the open in the RED/GRN wire.
Does the voltage at terminal 4 of the light flasher
relay connector (C403) change from battery
voltage to 0 volts repeatedly when the security
svstem is in the PANIC mode?
Yes - Replace the light flasher relay.
No - Go to the next steP.
7. With the security control unit connector
disconnected, run a jumper wire from terminal
17 to ground.
Do the parking lights and taillights come on?
Yes - Replace the security conlrol unit.
No - Repair the open in the terminal 17
(REDMHT) wire.
q
I=

21. C214
- Gray- Right side of engine compartment- Connects engine wire harness to main wire harness
'96- 97 models:Male - WHT/GRNFemale - BLU/FED(Horn)'98-'00 models:BLU/RED (Horn)
BLKRED (Fans)
WHT (Fans)
4
5
6
7
*io t0,,"compressor controls)
BLU/RED (A,/C
compressor controls)
BLU,ryVHT (I'/C
compressor controls)
2
3
23. C639
- Black,ryVhite- Top front ot driver's door- Connects driver's door wire harness to driver's
power mirror pigtail
Without Defogger:
1
2
4
6 Male - LT GRNFema|e - BLU/BLK(Left/right control)
With Oelogger:
1
2
3 l\,lale - BLKAVHTFemale - BLK(Ground)
4 lvlale - BLU/REDFemale ORNAVHT(Delogge4
lvlale PNKFemale - YEURED(Common)
MaIe _ GRYFemale BLUA/VHT(Up/down control)
lvlale - LT GRNFemale BLU/BLK(Corrmon)
i.4ale - PNKFemale - YEURED(Up/down conkol)
Male - GRYFemale - BLU,ryVHT(Lett/right control)
22. C552
- Green- On rear of under-dash fuse/relay box- On tloor wire harness
1 *1: FEDA/VHT(Power windows)
2 *1: YEL/BLK(Power windows)
3 *1:YEL/BLK
(Power windows)
4 *1 | RED/WHT(Power windows)
*1= Sedan only*2='96''98:All'99-'00r GX
6
7
GRN/BLK(Power windows)
GRN/BLK(Power windows)*2: BLK/YEL(Power mifiors)
BLU/BLK
{Power windows)
202-6
24. C556
- Black,ryVhite- Top front of front passenger's door- Connects tront passengefs door wire harness
to passenger's power mirror pigtail
Without Defogger:
l
2
3 l\4ale -
Female BLK(Not Used)
4 l\4ale -
Female - ORN/WHT(Not Used)
With Delogger:
1
2
3 Male - BLK^VHTFemale - BLK(Ground)
4 l\.4ale - BLU/REDFemale - ORNAVHT(Defogger)
Male OBNFemale - YEUBLK(LefVright control)
l\4ale - PNKFemale - YEL/RED(Common)
Male BRNFemale - GRNA/VHT(Up/down conkol)
[.4ale - ORNFemale - YEL/BLK(Left/right control)
lrale - PNKFemale - YEURED(Up/down conkol)
l\,lale - BFNFemale'GFiN(Common)

Gonnector Views (cont'd)
67. Integrated Control Unit
- On underdash fuse/relay box
Connector A
- Connects control unit to under-dash fuse/relay box
1 Not used
4 Erake bulb check output
5 lgnition input
6 lgnition input
7 lgnjtion input
Connectol B
- Natural- On main wire harness
l BLU/BLK
{Front wiper/washer)
2 BLUA/VHT(Front wiper/washe0
3 YEUBLU(Front wiper/washer)
4 '98-'00 models:WHT/BLK(Front wiper/washer)
8 Lights ON input
9 Battery input
11 _
13 Start input
14 Ground
7 RED/BLU (Driver's
seat b€lt switch input)
8 LT GRN/RED(Door open input)
I GRN (Oriver's
door switch input)'t0 BLU/RED (Key inignition input)
202-24
68. Stereo Radio Tuner ('96-'98)
- Center ot dash
Connector A
- Gray- On dashboard wire harness
1 RED/GRN(RF speaker +)
2 BLU (LF speaker +)
3 RED/BLK(lllumination control)
4 WHT/BLU(Battery input)
5 YEURED (lgnition input)
6-
7 BLU/YEL(LR speaker +)
8 RED/TEL(RR speaker +)
9 BRN/BLK(RF speaker -)
1O GRY/BLK(LF speaker -)
12 RED(lllumination control)
14 BLK (Ground)
15 GFY,4/VHT(LR speaker -)
16 BRNAVHT(RR speaker -)
Connector B (USA HX, UX, and EX;
Canada EX and Si)
- Green- On dashboard wire harness
l BLU/RED(Key switch input)
2 LT GRN (Not used)
3 BLU/'EL (Drivels
door unlock output)
4 BLU (Security system)
5 LT BLU
{Security system)
6 BLIVYEL (lgnition input)
7 ORN (Security system)
8 LT GRN/BLK(Door open output)
9 GRN/ORN(Unlock/lock output)
1O GRNAVHT(Unlock/lock output)
1 1 BLU/WHT(Security system)
'2 WHT/BLK(Security system)
13 YEUBLU(Security system)
14 LT GRN/RED(Door open input)
15 BLK (Ground)
16 GRY (Horn conkol)

Connector ldentification and Wire Harness Routing
Connector
or
Terminal
Number ol
Cavities/
Color
LocationConnects toNotes
Main Wire Harness (Left side of dash and floor branch): '96-'97 models
c401
c402
c403
c404
c405
c406
c407
c407
c408
c409
c410
c411
c412
c413
c414
c415
c416
c417
c418
c419
c420
c421
c422
w+4J
c424
c425
c427
c428
c429
c430
c431
c432
c433
c434
lJ+OC
c437
v+.to
c439
14-GRY
4-ORN
4-NAT
14-GRY
4-NAT
8-GRY
2-GRY
2-GRY
1-BRN
1O-WHT
12-GRY
24-BLU
3-YEL
16-GRY
4.BLU
7-BRN
6.NAT
2-N/A
2-YEL
18-GRN
2O.GRN
18-GRN
7-GRN
6-GRN
4-NAT
4-WHT
8.WHT
6-WHT
4-NAT
7-NAT
3-GRY
8-GRY
4.GRY
14-GRY
2-GRY
4-GRY
26-GRY
22-GRY
1-GRN
Behind left kick panel
Behind left kick panel
Under left side ot dash
Under left side of dash
Under left side of dash
Under left side of dash
Under lett side ot dash
Under left side of dash
Under left side of dash
Behind under-dash fuse/relay box
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Under left side of dash
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Front of under-dash iuse/relay box
Front of under-dash fuse/relay box
Under left side of dash
Under left side of dash
Behind steering column cover
Behind steering column cover
Behind steering column cover
Behind steering column cover
Under left side of dash
Under lett side ot dash
Below front console
Below front console
Below front console
Below front console
Behind lett kick panel
Behind left kick panel
Behind under-dash fuse/relay box
Floor wire harness
Floor wire harness
Light flasher relay connector(Security)
Cruise control unit
DRL control unit connector A
DRL control unit connector B
Roof wire harness
Moonroof wire harness
Front fog light connector
Integrated control unit
Dashboard wire harness
Dashboard wire harness
SRS main harness
Data link connector
Starter cut relay
lgnition switch
Security starter cut relay conneclor
Clutch switch
Clutch interlock switch
Under-dash fuse/relay box
Underdash fuse/relay box
Under-dash fuse/relay box
Under-dash fuse/relay box
Underdash fuse/relay box
Horn relay
Brake switch
Combination wiper switch
connector A
Combination wiper switch
connector B
Combination light swilch
connector A
Combination light switch
connector B
Cable reel
lnterlock control unit
Secondary heated oxygen sensor
sub-narness
A,/T gear position switch
Shift lock solenoid
Park pin switch and A,/T gear
position console light
TCM connector A
TCM connector B
Under-dash luse/relay box
ABS
Optional
Canada
Canada-2
'4
Optional
AtT
M/T
Optional'5
M/T
Atl
'6
AN
AN
Atf
CVT
CVT
G401Left kick panelBody ground, via main wire
harness
.2: Without moonroof .5: M/T (with cruise control or for D16Y5 engine)"4: With moonroof .6: With secondary heated oxygen sensor (HO2S)
203-20