KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
WARNING
Read WARNING
on following page.
Is 12 VDC present at
terminal lug TL60?
e89. ELECTRICAL SYSTEM DOES NOT MAINTAIN A CHARGE (CONT)
Voltage Test or
STE/ICE-R Test #89
Engine oil pressure indicator
light illuminates.
OIL PRESS gage operates.
Engine starts.
Alternator belts OK.
Battery(ies) OK.
Engine oil pressure switch OK.
Relay K11 OK.
Dashboard cable assembly OK.
Engine control cable assembly
OK.
Alternator ground strap OK.
POSSIBLE PROBLEMS
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.
6.
If 12 VDC is not present,
100 AMP alternator to reverse
polarity relay 12 VDC cable or
200 AMP alternator to terminal
block 12 VDC cable is faulty.
YES
Replace 100 AMP alternator to reverse
polarity relay 12 VDC cable (para 7-65)
or replace 200 AMP alternator to terminal
block 12 VDC cable (para 20-59).
NO
TM 9-2320-365-20-1
2-1016.4 Change 1
