TM 5-5420-202-20-1
DETAILED TROUBLESHOOTING PROCEDURE
VEHICLE OPERATION HULL POWER
(Continued)
Symptom-31.1
16
Check CKT 2 for open diode in alternator.
First Technician (Commander's Station)
Set multimeter to diode scale.
Connect black probe of meter to pin B on
bulkhead disconnect harness 12326539 and
red probe to ground.
Check if meter indicates 0.3 to 0.8 volts dc.
Does meter indicate 0.3 to 0.8 volts dc?
12326539
17
Replace alternator (page 10-1).
Connect front accessory harness
12326539 connector (CKT 2) to
bulkhead disconnect (page 10-269).
Disconnect "T" harness from
harness 12326542 connector (1,
1A, 532, 533, 534).
Connect harness 12326542
connector (1, 1A, 532, 533, 534) to
voltage regulator.
NO
Replace commander's floor plate
(page 17-9).
YES
Change 6
4-414.11