1998 HONDA CIVIC Hood latch

Ir
Security Control Unit Input Test
The following tests are performed with the electrical conneclor disconnected from the security control unit.
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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)
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.