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TM 9-2320-364-20-2
2-1411
(1) Set multimeter select switch to
volts dc.
(2) Connect positive (+) multimeter lead
to wire 1026 at horn relay R3,
terminal 30.
(3) Connect negative (–) multimeter
lead to a known good ground.
(4) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 22 to 28 vdc are not present,
turn OFF ENGINE switch and
repair wire 1026 (see schematic
Fig 2-36) or notify DS
Maintenance.
(b) If 22 to 28 vdc are present, wire
1026 is OK.
(5) Turn OFF ENGINE switch.
VOLTAGE TEST
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.
Circuit breakers CB5, CB6, CB12, CB20, CB22, CB23 and relays R3, R13 - R19, R26, R28, R32, R33
are always electrically hot and can cause severe injury to personnel. Care must be exercised when
working under the electrical circuit board cover.
(1) Connect positive (+) multimeter lead
to wire 1031 at horn relay R3,
terminal 85.
(2) Connect negative (–) multimeter lead
to a known good ground.
(3) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 10 to 14 vdc are not present,
turn OFF ENGINE switch and
repair wire 1031 (see schematic
Fig 2-36) or notify DS
Maintenance.
(b) If 10 to 14 vdc are present, wire
1031 is OK.
(4) Turn OFF ENGINE switch.
VOLTAGE TEST
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