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TM 9-2320-364-20-2
2-1173
(1) Remove 15 screws and two ECB
covers.
(2) Connect positive (+) multimeter lead
to input wire 1072 at magnetic switch
R25.
(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,
repair wire 1072 (see schematic
Fig 2-24) or notify DS
Maintenance.
(b) If 22 to 28 vdc are present,
wire 1072 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
Circuit breakers CB5, CB6, CB12, CB20,
are always electrically hot and can cause
working under the electrical circuit board
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