
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

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=

Starter Cut Does Not Work Properly
(HX, LX, EX, DX-V, Si)
1 . With the security system connector
disconnected, run a jumper wire f rom terminal
19 to ground.
Does the starter motor operate when the ignition
switch is turned to START (lll)?
2.
Yes - Replace the security control unit.
No - Go to the next steD.
ls there baltery voltage at terminals 2 and 3 of
the security starter cut relay connector, when the
ignition switch is in the START (lll) position?
Yes - Go to the next step,
No - Reoair the ooen in the BLK/YEL wire
between the ignition switch and the
security starter cut relay.
ls there battery voltage at terminal 6 of the
securitv starter cut relav?
Yes - Go to the next steo.
No - Replace the security starter cut relay.
3.
@
I=
r
133-27
4. With the security starter cut relay connector
disconnected, run a jumper wire from terminal 2
to terminal 4.
Does the slarter motor operate when the ignition
switch is turned to START (lll)?
5.
Yes - Go to the next step,
No - Repair the starting system.
With the security starter cut relay connector
reconnected, does the voltage at terminal 6
change from battery voltage to 0 volts when the
system is in the Alarm Triggered Mode?
Yes - Replace the security starter cut relay.
No - Repair the open in terminal 19
(BED/YEL) wire.
4
I=

Security System (cont'd)
Starter Cut Does Not Work Properly
(cx, Dx)
1 . With the security system connector
disconnected, run a jumper wire f rom terminal
19 to ground,
Does the starter motor operate when the ignition
switch is turned to START (lll)?
Yes - Replace the security control unit.
No - Go to the next steo.
ls there battery voltage at terminals 2 and 3 of
the security starter cut relay connector, when the
ignition switch is in the START (lll) position?
Yes - Go to the next step.
No - Repair the open in the BLKMHT wire
between the ignition switch and the
security starter cut relay.
ls there battery voltage at terminal 6 of the
securitv starter cut relav?
Yes - Go to the next step.
No - Beplace the security starter cut relay.
4
o
t_=
133-28
4. With the security starter cut relay connector
disconnected, run a jumper wire from terminal 2
to terminal 4.
Does the starter motor operate when the ignition
switch is turned to START (lll)?
Yes - Go to the next steo.
No - Repair lhe starting system.
Does the voltage at terminal 6 of the security
starter cut relay change trom battery voltage to 0
volts when the system is in the Alarm Triggered
Mode?
Yes - Replace the security starter cut relay.
No - Repair the open in the terminal 19 (GRN)
wtre.
q
I=

Connector Views (cont'd)
1. C202 (with Cruise Control)
- Gray- Left side ol engine compartment- Connects main wire harness to engine
compartment wre harness
gRN/BLK
(Cruise control)
BRN,ryVHT(Cruise control)
RED/BLK(Headlight switch)
BRN {Cruise conkol)
WHT/BLK(Front wipetwashel)5
4.c568
- Gray- Below Juel tank unit connector- Connects floor wire harness to tuel tank
pressure suo-narness
BLU (PGi.4-Fr)
LT GRN (PGM-FI)
BLl(WHT (PGI\4-FD
YEUBLU (PGM,FI)
GRN/BLK (PGI\,4.FD
4
5
2. C407 ('98-'00 Models)
- Gray- Behind left side ol dash, above kick panel
- Connects main wire harness to roof or moonroo{
wtre harness
WHT/RED(Ceiling light)
l\4ale - LT GRN/REDFemale - LT GRN/BLKor LT GRN/RED(Ceiling light)
5
5.c570
- Blue- In right door pillar- Connects floor wire harness to right rear door
wlre hafness
2
3
YEL(Power windows)
WHT/RED(Power door locks)
YEUGRN(Power wrndows)
YEL/BLK(Power windows)
YEURED(Power door locks)
5
6
3.c423
- Green- On Jront of under-dash tuse/relay box- On main wire harness
*1: YEL (Fuse 3)*2: GRN(Rear wiper/washe4
GRN/YEL(Turn signals)
GRN/ORN {Tu.n signals)
GRN/BLK(Front wiper/washer)
GRN/RED(Turn signals)
5
62
3
*1= USA: tX, EX, HX, DX-V SiCanada: EX, Si*2= Hatchback
202-2
6.c571
- Blue- In lett door pillar- Connects floor wire harness to lett rear door
wlre harness
MaIe _ YELFemale - GBN/YEL(Power windows)
WHT/RED(Power door locks)
Male - YEUGRNFemale - GBN(Power windows)
5
6
N4ale YEUBLKFemale - RED,ryVHT(Power windows)
YEURED(Power door locks)

\7. C604 (Hatchback)
GRN/BLK(Back-up lights)
l\4ale GRNIYELFemale - GRN/RED(Turn signaland hazardwarning lights)
BLK (G601)
- Gray- Left rear ol cargo area- Connects rear wire harness to left outer
taillight assembly
4
5
6
1
2
GRNAVHT(Brake lights)
FED/BLK(Headllght switch)
10. Exhaust Gas Recirculation
(EGR) Valve and Lift Sensor
1
2
3
(D16Y5 MfI D1685)
- Gray- Top right side of engine- On engine wire harness
WHT/BLK (EGR input)
GRN/BLK(Sensor ground)
YEUBLU(Reference voltage)
4
5
6
BLK (Ground)
PNK (EGR control)
of cargo area
rear wire harness to right outer
assembly
n- -n
a t | _ a2a
l3I4t5tttl
IJ
I
8. C605 (Hatchback)
- Gray- Right rear- Connects
taillight
GRN/BLK(Back-up lights)
GRNTYEL(Turn signaland hazardwarning lights)
3
4
5
6
1
2
BLK (G601)
GFNAVHT (Brake lights)
RED/BLK(Headlight switch)
11. Heater Fan Switch
('96-'98 Models)
- Brown
Center of dash- On heater-sub B wire harness
BLK (Ground)
BLUAVHT (L4edium
LO speed input)
BLU/BLK(Hl speed input)
4
5
6
1
2
3
BLU (LO speed input)
BLU/YEL (Medium
Hlspeed input)
GFIN (Blowerswitch ON input)
9. C607 (Hatchback)
- Blue- Right side o{ cargo area- On rear wire harness
BLU/BLK (lndicators)
RED/BLK(License lights)
GBN,ryVHT (8rake lights)
LT GBN(Rear wiper/washe0
5
6
1
2
3
4
GRN(Rear wiper/washer)
LT GRN/BLK(Rear \/iper washer)
)/
202-3
12. Security Starter Cut Relay/C416
- Natural* Upper left kick panel- On main wire harness
1
2Allexcept CX and DXI[,4ale: BLK,^r'r'HTFemale: BLKI/ELCX and DXi BLI(WHT(Battery input)
All except CX and DX:BLK^/ELCX and DX: BLK/WHT(Baftery input)
[.4ale - BLK/WHTFemale - BLKAVHTor BLKRED(Starter output)
All excepi CX and DX:RED/YELCX and DX: GRN(Security starter c!1relay control inpul)
5
6
tl3'