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TM 9-2320-364-20-2
2-1134
1. ALL 12 AND 24 VDC CIRCUITS DO NOT OPERATE (CONT).
2.
Replace isolator
(Para 7-34).
Verify repair, go to
Step 6 of this Fault.
YES
NO
Batteries OK.
Isolator faulty.
Wire 1431 between battery
No. 1 and isolator OK.
Wire 1431 between isolator and
ENGINE switch faulty.
Engine switch faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 0.500 to 0.550 vdc are not
measured, isolator is faulty.
WARNING
Are 0.500 to 0.550 vdc
measured between terminals
A and 2 on isolator (145 amp
alternator only)?
Read WARNING
on Page 2-1135
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