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TM 9-2320-364-20-2
2-1139
(1) Connect positive (+) multimeter lead
to wire 1020 on ENGINE switch at
ignition terminal.
(2) Connect negative (–) multimeter lead
to a known good ground.
(3) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 22 to 28 vdc are not present,
turn OFF ENGINE switch and
replace switch (Para 7-32).
(b) If 22 to 28 vdc are present,
go to Step (4) below.
(4) Turn OFF ENGINE switch.
(5) Connect positive (+) multimeter lead
to wire 1640 on ENGINE switch at
accessory terminal.
(6) Turn ON ENGINE switch.
(a) If 22 to 28 vdc are not present,
turn OFF ENGINE switch and
replace switch (Para 7-32).
(b) If 22 to 28 vdc are present,
accessory circuit of ENGINE
switch is OK.
(7) Turn OFF ENGINE switch.
VOLTAGE TEST
(1) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 12 and 24 vdc circuits do not
operate, fault not corrected.
Perform Steps (2) and (3) below
and notify DS Maintenance.
(b) If 12 and 24 vdc circuits operate,
fault has been corrected.
(2) Turn OFF ENGINE switch.
(3) Close top engine access cover.
VERIFY REPAIR
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
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