Honda Civic Service Manual page 2059

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Security Control Unit Input Test
The following tests are performed with the electrical conneclor disconnected from the security control unit.
\ ;
1 2 3
4
5
X
6
7
I
9
1 0
1 1 1 2 1 3 1 4 1 5
r o l
1 7
1 8 1 9
20 21 22
Terminal
No.
Wire
Color
Test Condition
Test: Desired Result
Possible Cause il result is not obtained
2
LT GRN/
R E D
Each door opened,
one at a time
Check for conlinuity to ground:
There should be continuity.
Faulty door switch
An open in the wire a
3 BLU/BLK
TrunUHatch open
Check for continuity to ground:
There should be continuity.
a Faulty trunldhatch latch switch
An open in the wire
a
1 0 WHT
Under all conditions
Check tor voltage to ground:
There should be battery
voltage.
.
Blown No. 6 (3A) fuse in the
under-hood fuse/relay box
(HX, LX, EX, DX-V Si)
.
Blown No. 54 (40A) fuse in the
under-hood fuse/relay box (CX, DX)
.
Blown (3A) fuse in security in-line
fuse holder (CX, DX)
.
An open in the wire
11
YEL
(BLK/YEL
cx, DX)
lgnition switch ON (ll)
Check for voltage to ground:
There should be battery
voltage.
.
Blown No 3 (10A) fuse in the
under-dash tuse/relay box
(HX, LX, EX, DX.V, Si)
.
Blown (3A) fuse in the security in-line
fuse holder (CX, DX)
.
An open in the wire
BLK
Under all conditions Check
for continuity to ground:
There should be continuity.
a
Poor ground (G401, G402)
An open in the wire a
t 5
BLU/RED
lgnition key inserted
into the ignition key
switch
Check for voltage to ground:
There should be 1 V or less.
a
Poor ground (G401, G402)
Faulty ignition key switch
An open in the wire
Short in the wire
a
a
a
lgnition key removed
from the ignition key
switch
Check for voltage to ground:
There should be 4 V or more.
1 8 G R Y Under all conditions
Connect to ground:
Horn should sound.
. Blown No.52 (15A) luse in the
under-hood luse/relay box
.
Faulty horn
.
Faulty horn relay
.
An open in the wire
1 3 3 - 1 5