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TM 9-2320-364-20-2
2-1618
50. 12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING
(145 AMP) (CONT).
Both voltmeters indicate low
charge.
Batteries OK.
Fuel pump operates indicating
24 vdc present at DUVAC
controller IGN terminal.
Alternator belts OK.
DUVAC controller OK.
Wire 1278 OK.
Jumperwire OK.
Alternator OK.
Wire 1344 OK.
Wire 1274 OK.
Brown wire OK.
Wire 1435 between DUVAC
controller and ground faulty.
Black wire between regulator
and ground faulty.
Red wire between regulator
and DUVAC controller faulty.
Orange wire between regulator
and DUVAC controller faulty.
Regulator faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If regulator is not grounded
through wire 1435, regulator
will not operate.
YES
NO
Repair wire 1435 (see
schematic Fig 2-39).
Verify repair, go to
Step 14 of this Fault.
10.
Is continuity measured
between wire 1435 and a
known good ground?
WARNING
Read WARNING
on Page 2-1619
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