e89. ELECTRICAL SYSTEM DOES NOT MAINTAIN A CHARGE (CONT)
TEST OPTIONS
REASON FOR QUESTION
If continuity is not present,
relay K11 is faulty.
3.
KNOWN INFO
Is continuity present from
relay K11 terminal 30 to
terminal 87A?
POSSIBLE PROBLEMS
Replace relay K11 (para 7-9).
YES
NO
Faulty relay K11.
Faulty dashboard cable
assembly.
Faulty engine control cable
assembly.
Faulty alternator ground strap.
Faulty alternator.
Faulty voltage regulator.
Faulty 100 AMP alternator to
reverse polarity relay 12 vdc
cable.
Faulty 200 AMP alternator to
terminal block 12 VDC cable.
Faulty 100 AMP alternator to
reverse polarity relay 24 VDC
cable.
Faulty 200 AMP alternator to
terminal block 24 VDC cable.
Engine oil pressure indicator
light illuminates.
OIL PRESS gage operates.
Engine starts.
Alternator belts OK.
Battery(ies) OK.
Engine oil pressure switch OK.
Continuity Test or
STE/ICE-R Test #91
TM 9-2320-365-20-1
2-1014 Change 1