Under dash HONDA CIVIC 1998 6.G Workshop Manual

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

Security System (cont'd)
The following tests are performed with the electrical connector connected to the security control unit.
133-16
TerminalNo.WireColorTest ConditionTest: Desired ResultPossible Cause il result is not obtained
1YEUBLUUnder all conditionsCheck tor voltage to ground:
There should be approximately
5 volts.
aBlown No. 6 (3A) fuse in theunder-dash fuse/relay box
Faulty security control unita
5BLUValet switch pressed
Check tor voltage to ground:
Should change from
approximately 5 volts to less
than 1 volt when valet switch isprsssed.
aFaulty radio ('96-98 models)
or valet switch ('99 models)
An open in the wirea
12ORNUnder all conditionsCheck for voltage to ground:
There should be approximately5 volts.
aBlown No 6 (3A) tuse in tho
under-dash tuse/relay box
Faulty security control unito
14
BLU/WHT(BED
CX, DX)Under all conditions
Check for voltage to ground:
There should be approximately4 volts.
. An open in the wire
. Faulty radio ('96198 models)
or security LED ('99 models)
17RED/WHTSecurity system inPANIC mode
Check for voltage to ground:
Should change from batteryvoltage to less then 1 volt whenin the PANIC mode.
aBlown No. 48 (30A) luse in the
under-hood fuse/relay box
Faulty light flasher relay
Faulty security conlrol unit
An open in the wire
a
a
a
19
REDI/EL(GRN
cx, DX)
Security systemalarm triggered
Check tor voltags to ground:
Should change from batteryvoltage to less then 1 volt whensecurity system alarm istriggsred.
aFaulty security starler cut relay
Faulty security control unit
An open in the wire
I
a
22
BLUA/EL/'oa-'oq
mooelsWHT/BLK)
Under all conditionsCheck tor voltage to ground:
There should be approximately
5 volts.
aBlown No. 6 (3A) fuse in the
under-dash fuse/relay box
Faulty security control unita

\.
\iu
Security System Does Not Work In Any
Mode (HX, LX, EX, DX-V, Si)
1. ls fuse 6 (in the under-dash box) OK?
Yes - Go to the next steo.
No - Replace the blown tuse, then go to the
next sleD.
2. Does the fuse blow again?
Yes - Go to the next step.
No - Retest the system.
3. Disconnect the security control unit connector.
4. ls there continuity from terminals 1, 10, 12, ot 22
to oround?
5.
Yes - Locate the short in the wiring between the
security control unit and the radio ('96-'98
models) or keyless door lock control unit
('99 model).
No - Go to the next step.
ls there battery voltage at terminal 10 of the
securitv control unil connector?
Yes - Go to the next steo.
No - Locate the open in the wiring between
fuse 6 and the securitv control unit.
133-17
rfe
6. ls there continuity f rom terminal 13 ot the
security control unit connector to ground?
7.
Yes - '96-'98 models: Go to the next steD.'99 models: Replace the security control
unit.
No - Locate the open in the wiring between the
security control unit and ground (G401 ).
With the security control unil connector
reconnected, is there battery voltage at terminal
21 ot the securitv control unit connector?
Yes - Go to the next step.
No- Beplace the security control unit.
ls there battery voltage at terminal 5 of the
keyless entry harness connector (B)?
Yes - Replace the radio.
No- Repair the damaged LT BLU wire
between the security control unit and
the radio.
8.

rl,Security System Does Not Disarm With
The Valet Switch
Security System Does Not Work ln The
Valet Mode ('96-'98 HX, LX, EX)
1. ls luse 3 (in the under-dash fuse box) OK?
Yes - Go to the next steD.
No - Replace the blown fuse, then go to the
next step.
2. Does the fuse blow again?
Yes - Locate and reoair the short.
No - Retest the system.
3. ls there battery voltage at terminal 11 of the
security control unit connecto( when the ignition
switch is in the ON (ll) position?
Yes - Go to the next step.
No - Locate the open in the wiring between
luse 3 and the security control unit.
ls lhere approximately 5 volts at terminal 4 of the
keyless entry harness connector (B)?
Yes - Go to the next step.
No - Replace the radio.
rl e
133-21
5. ls there approximately 5 volts at terminal 5 of the
security control unit connector?
Yes - Go to the next step.
No - Locate the open in the BLU wire between
the security control unit and the radio.
ls the voltage at terminal 5 oJ the security control
unit connector changed from approximately 5
volts to 0 volts when the valet switch is pressed?
Yes - Replace the security control unit.
No - ReDlace the radio.
6.

Security System (cont'd)
3.
Security System Does Not Disarm With
The Valet Switch
Security System Does Not Work In The
Valet Mode ('99-'00 models)
1. ls fuse 3 (in the under-dash fuse box) (HX, LX,
EX, DX-V, Si) or the fuse in the securily in-line
luse holder (CX, DX) OK?
Yes - Go to the next step.
No - Replace the blown fuse, then go to the
next step.
Does the fuse blow again?
Yes - Locate and reoair the short.
No- Retest the system.
ls there battery voltage al terminal 11 of the
security control unit connector, when the ignition
switch is in the ON (ll) position?
Yes - Go to the next steo.
No - Locate the open in the wiring between
fuse 3 (HX, LX, EX, DX-V, Si) or the luse
in the security inline fuse holder (CX,
DX) and the securiv control unit.
133-22
4. ls there approximately 5 volts at terminal 5 of the
security control unit connector?
Yes - Go to the next steo.
No - Replace the security control unit.
ls the voltage at terminal 5 of the security control
unil connector changed from approximately 5
volts to 0 volts when the valet switch is pressed?
Yes - Replace the security control unit.
No - Check that the valet switch is working
properly, then check for an open in the
wiring between the valet switch and the
security control unit.

Power Mirrors
- Without Defogger
r,-;;---j HEAIEF 1/ A/C FEIAY
I t uo s"" Po*", !f-----f Distribution, I
L_i:i:_J
UNDER-DASH
RELAYBOX
UNDER-OASHFUSE/RELAYBOX
I
I
I
I
I
BLK/BLU
10
BLK/BLU
-l
I
I
I
I
IJ
f,-G;---
I See Power
lF---t Distribution,
L_i:i'i_
rt;%,"
*'ii%.,
L vtEW 46
vlEw 22
'96-'98 modelsand all GX models
'99r00 modelsexcept GX
a-
c639
vlEW23
c656
POWERMIRBORswtTcHvtEw 33
See GroundDistribution,page 14-8.
LEFTMIRRORRIGHTMIRROR
G-t
BLU/BLK
('98 00mooets2't)15
BLU/ALK
LT GRN
G551
141

Stereo Sound System
i.l
-"r,"atrf
;;-;l P,)r'=.,8-Jl3g"BA.K.IJP | ?pJ" ,I
I
c351
FUSE 28RAOIOCLOCK
(15A 9A no{br.)
c501
vlEw 55
UNDER-DASHFUSE/RELAYBOX
't9c928OPTIONCONNECTOR
* = '96.98 models
aa4,See PowerDistribution,page 10-11.
18c411
vlEw 60
See Dash andConsole Lights
.^fi;l ;,tr
rA2)8
BLU
14
BLU
1(with power mirrors 16)
REO/GFNor BLU
I RED/GRN I' (96 s7 moders BLU) r
ra10)18
GRY/BLK
13
(with power mirror6 17)
BRN/BLKor GRYIBIK
rAe)17
BFN/ALK
BRN/BLK
(with power mirrors 7)
RED/GRN
1C556 (with oower milors 6)PHA|O93vtEw 61 aLUor RED/GRN
,ELU,' (s6 97 modes FEO/GFN)
ra1)?
REO/GFN
c503
GFY/BLKor BRN/ALK
c557
vtEw 62
' RED
, BLU,1
.'I LEFTI I TWEETERRIGHT . 1
TWEETER.
c6s7
GFY/BLK
BFN/BLK)
150
Tweeters

Accessory Power Socket
-.t UNDER-DASH
| ) ruse zr | [N1e'ne*"
| )33$ifl* lPHoroia
t__tglll__J"
[ffi']''
i
"..""" I
I
I
,I
l'-l-l AccEssoRY
lQli{y#lfr
See GroundDistribution,page 14-7.
lv
ll
tt
L__l#: c4o1PHAfa 57
155

Cornponent Location
61. Behind Left Side of Dash Panel\
\
64. Rear of Under-dash Fuse/Relay Box
62. Behind Left Side of Dash Panel65. Underside of Steering Column
63. Rear of Under-dash Fuse/Relay Box66. Behind Left Side of Dash Panel
201 -'l 0
\

Component Location
109. Underside of Hatch Lid ('96-'97 Models)112. Right Side of Cargo Area (Hatchback)\
\,
110. Underside of Hatch Lid113. Center of End Panel
111. Behind Left Side of Dash Panel1'14. Lett Side of Trunk Lid (with Optional Trunk Spoiler)
201 -18
\,