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Page Title:
Table 3-3. Switch Continuity Checks |
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 TM 3-6665-329-13&P
Table 3-3. Switch Continuity Checks
Measure Resistance
Set
Switch
If reading is
Switch
Name
Should
incorrect;
From
To
To
Read
1. Test switch.
ALARM
J1 Pin 14
Depress
Open
J1 Pin 25
Replace defective
RESET
Release
J1 Pin 14
Short
J1 Pin 25
switch (Para 3-33).
(Pushbutton)
2. Test for bro-
ken switch wires.
Replace branched
wiring harnes
1. Test switch
4
J1
Pin 26
J3
Pin
34
ALARM TEST
Short
Replace defective
6
J3
Pin
4
J1
Pin 26
(Electronics)
Short
switch (Para 3-32).
10
J1
Pin 26
J3
Pin
5
Module
Short
12
J1
Pin 26
J3
Pin
33
Short
Section)
2. Test for bro-
ken switch wires.
Replace branched
wiring harness
1. Test switch.
ALARM TEST
OFF
J4 Pin N
Open
J3 Pin 30
Replace defective
J4 Pin N
ON
J3 Pin 30
Short
(Remote
switch (Para 3-31).
Alarmboard
2. Test for bro-
Section)
ken switch wires.
Replace branched
wiring harness
1. Test switch.
ALARM
Short
ON (UP)
J4
Pin
R
J3
Pin
29
Replace defective
ACTUATE
J4
Pin
P
Short
J4
Pin
B
switch (Para 3-31).
NEUTRAL
Open
J4
Pin
P
J3
Pin
29
2. Test for bro-
NEUTRAL
Open
J4
Pin
R
J4
Pin
B
ken switch wires.
Replace branched
J4
Pin
P
Short
J3
Pin
29
On (DOWN:
wiring branched
J4
Pin
R
Short
J4
Pin
B
wiring harness
1. Test switch.
Black
Red Test
Short
SHUNT
Replace defective
Test
Point
switch (Para 3-28).
Point
(Current
2. Test for bro-
(Current
Measure)
MEASURE
Open
ken switch wires.
Measure)
Replace branched
wiring harness
3-40
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