1999 HONDA CIVIC Security

Security System (cont'd)
Security System Does Not Work ln Any
Mode (CX, DX)
1. ls luse 54 (in the under-hood fuse box) OK?
Yes - Go to the next step.
No - Repiace the blown fuse, then go to the
next step.
2. ls the fuse in the securiiy in-line fuse holder OK?
Yes - Go to the next step.
No - Replace the blown fuse, then go to next
srep.
3. Does either fuse blow again?
Yes - Locate and repair the short.
No - Retest the system.
4. ls there battery voltage at terminal 10 of the
security control unit connector?
Yes - Go to the next step.
No - Locate the open in the wiring between
fuse 54 and the security control unit.
ls there continuity from terminal 13 ol the
security control unit connector to ground?
Yes - Replace the security control unit.
No - Locate the open in the wiring between the
securitv control unit and G401.
5.
133-18
Security System Does Not Arm (CX, DX)
1. Place the ceiling light in the center position.
Does the ceiling light come on, even with all the
doors closed?
Yes - Faulty door switch or short in wiring to
door switches.
No - Go to the next steo.
2. With the ignition switch in the ON (ll) position,
does the trunk open indicator in the gauge
assembly come on, even with the trunk closed?
Yes - Faulty trunk latch switch or short in the
BLU/BLK wire.
No - Go to the next step.
3. Does voltage at terminal 2 of the security control
unit connector change from battery voltage with
all doors closed, to less than 1 volt when any
door is ooened?
Yes - Go to the next step.
No - Repair the open in the terminal 2
(LT GRN/BLK or LT GRN/RED) wire.
Does voltage at terminal 3 of the security control
unit connector change from battery voltage with
the trunk closed, to less than 1 volt when the
trunk is oDened?
v]" - R"pt"." tne security control unit.
No - Bepair the open in the terminal 3
(BLU/BLK) wire.

Security System Does Not Arm
(HX, LX, EX, DX-V, Si)
1. With all the doors closed, do the doors lock
when you press the transmitter LOCK button?
Yes - Go to the next steo.
No - Go to Doors Do Not Lock With The
Transmitter, on page 130-11 ('96-98
models) or 1 30-18 ('99 models).
Check the trunk open indicator in the gauge
assembly. With the ignition switch in the ON (ll)
position, does the trunk open indicator come on
even with the trunk closed?
Yes - Faulty trunk latch switch or shod in
BLU/BLK wire.
No - Go to the next steo.
Does the voltage at terminal 2 of the security
control unit connector change from
approximately 5 volts with all doors closed, to
less than 1 volt when any door is opened?
Yes - Go to the next step.
No - Repair the damaged terminal 2
(LT GRN/RED) wire.
Does the voltage at terminal 3 of the security
control unit connector change from battery
voltage with the trunk closed, to less than 1 volt
when the trunk is ooened?
Yes - Go to the next steo.
No - Repair the damaged terminal 3
{BLU/BLK) wire.
Does the voltage at terminal 15 of the security
control unit connector change from battery
voltage the key is not in the ignition, to less than
1 volt when the key is in the ignition?
5.
o.
Yes - Go to the-next step.
No - Repair the damaged terminal 15
(BLU/RED) wire.
ls ihere approximately 5 volts at terminal 22 of
the security control unit connector?
Yes - Go to the next step.
No - Replace the security control unit.
7. ls there approximately 5 volts at terminal 12
('96-'98 models) or 14 ('99 models) of the
keyless receiver unit ('96-98 models) or the
keyless door lock control unit ('99 models)?'96198 modelsi
Yes - Replace the radio ('96-'98 models) or the
keyless door lock control unit ('99
models).
No - Repair the damaged WHT/BLK ('96-'98
models) or BLU/YEL ('99 models) wire
between the security control unit and the
radio ('96-98 models) or the keyless door
lock control unit ('99 models).
133-19

Security System (cont'd)
Security System Does Not Disarm With
The Transmitter (HX, LX, EX, DX-V, Si)
1 . With all the doors closed and locked, do the
doors unlock when the transmitter UNLOCK
button is pressed?
Yes - Go to the next step.
No - Go to "Doors Do Not Unlock With The
Transmitte/' on page 130-11 ('96-98
models) or 130-18 ('99 models).
2. ls there approximately 5 volts at terminal 1 of the
securitv control unit connector?
Yes - Go to the next step.
No - Security control unit.
3. ls there battery voltage at terminal 13 ofthe
keyless receiver unit ('96-98 models) or the
keyless door lock control unit ('99 models)?
96.98 models:
'99 models:
Yes - Beplace the radio ('96-'98 models) or the
keyless door lock control unit ('99
models).
No - Repair the damaged YEUBLU wire
between the security control unit and
the radio.
133-20
Security System Does Not Disarm
(cx, Dx)
1. ls the tuse in the security in-line luse holder OK?
Yes - Go to the next step.
No - Replace the blown fuse, then go to the
nexl sreD.
2. Does the fuse blow again?
Yes - Locate and repair lhe short.
No- Retest the system.
3. ls there battery voltage at terminal 11 of the
security control unit connector, when the ignition
switch is in the ON (ll) position?
Yes - Replace the security control unil.
No - Locate the open in the wiring between
the ignition switch and lhe securily control
unit.

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.

Security System Alarm Does Not Trigger
When The System ls Armed And The
Trunk Or A Door ls Opened
Security System Does Not "Be€p" 3 Times
When The System is Armed With The Trunk
Or A Door Open (HX, LX, EX, Dx-V SD
1. Place the ceiling light in the center position, then
open and close the doors one at a time. Do all
the doors operate the ceiling light properly?
Yes - Go to the next steo.
No - Repair the ceiling light circuit.
With the ignition switch in the ON (ll) position,
does the trunk open indicator in the gauge
assembly come on with the trunk open?
Yes - Go to the next step.
No - Faulty trunk latch switch or an open in the
BLU/BLK wire.
Does the voltage at terminal 2 of the security
control unit connector change trom battery
voltage with all doors closed, to less than I volt
when any door is opened?
Yes - Go to the next step.
No - Repair the open in the terminal 2
(LT GRN/RED) wire.
4. Does the voltage at terminal 3 of the security
control unit connector change from battery
voltage with the trunk closed, to less than 1 volt
when the trunk is opened?
Yes - Replace the security control unit.
No - ReDair the oDen in the terminal 3
(BLU/BLK) wire.
133-23

Security System (conrd)
Parking Lights Do Not Flash (CX, DX)
1 . Do the parking lights, headlights, and taillights
come on with the headlight switch in the HEAD
position?
Yes - Go to the next step.
No - Repair the parking lights, headlights, or
taillights circuit.
2. ls there battery voltage at terminals 1 and 2 of
the light flasher relay connector?
dHl
.t.
Yes - Go to the next step.
No - Repair the open in the WHT wire
between fuse 48 and the light flasher
relay.
ls there battery voltage at terminal 4 of the light
flasher relay connector?
-F-,
tlllJt3l4l
Intvl
r=
Yes - Go to the next step.
No - Replace the light flasher relay.
With the light flasher relay connector
disconnected, run a jumper wire from terminal 1
to terminal 3.
Do the parking lights and taillights come on?
Yes - Go to the next step.
No - Repair the open in the RED/GRN wire.
133-24
5. Does the voltage at terminal 4 of the light flasher
relay connector change from battery voltage to 0
volts repeatedly when the system is in the alarm
triggered mode?
Yes - Replace the light flasher relay.
No - Go to the next step.
With the security control unit connector
disconnected, run a jumper wire from termrnal
17 to ground.
Do the parking lights come on?
Yes - Replace the security control unit.
No - Repair the open in the terminal 17
(REDAIVHT) wire.
q
I=

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=