TM 5-5420-202-20-1
DETAILED TROUBLESHOOTING PROCEDURE
VEHICLE OPERATION HULL POWER
(Continued)
Symptom-31.1
NOTE
To ensure overvoltage protection circuit
breaker on voltage regulator is in the ON
(UP) position, turn the overvoltage circuit
breaker to the OFF (DOWN) position,
then to the ON (UP) position.
2
Check continuity from socket C of the test
harness to vehicle chassis (GROUND).
First Technician (Commander's Station)
Set multimeter to lowest range.
Set circuit breaker on voltage regulator to ON.
Connect "T" harness to voltage regulator.
Connect red probe of meter to "T" harness
socket C and black probe to ground.
Check if meter indicates continuity.
Does meter indicate continuity?
3
Clean and tighten loose
voltage regulator lead
connections.
If connections are not loose,
NO
replace harness 12326542
(page 10-1).
YES
4-414.4
Change 6
