TM 5-5420-202-20-1
DETAILED TROUBLESHOOTING PROCEDURE
VEHICLE OPERATION HULL POWER
(Continued)
Symptom-31.1
FROM STEP 60
66
12326536 (1A, 76, 54A, 459A, 486)
Check CKT 1A from connector at disconnect
plate to connector at master control panel.
First Technician (Commander's Station)
Disconnect harness 12326536 (1A, 76, 54A,
459A, 486) from disconnect plate.
Connect red probe of meter to 12326536 (1A,
76, 54A, 459A, 486) pin D.
Second Technician (Operator's Station)
Connect black probe of meter to 12326536
(1A, 76, 54A, 459A, 486) pin D.
Check if meter indicates continuity.
Does meter indicate continuity?
67
Replace harness 12326536 (1A,
76, 54A, 459A, 486) (page 10-1).
12326536 (1A, 76, 54A, 459A, 486)
Disconnect "T" harness from
harness 12326542 connector (1,
1A, 532, 533, 534).
68
Disconnect "T" harness from
Disconnect "T" harness from
voltage regulator.
harness 12326542 connector
Connect harness 12326542
YES
NO
(1, 1A, 532, 533, 534).
connector (1, 1A, 532, 533, 534)
Disconnect "T" harness from
to voltage regulator.
voltage regulator.
Replace commander's floor plate
Replace harness 12326542
(page 17-9).
(page 10-1).
Connect harness 12326536
(1A, 76, 54A, 459A, 486) to
disconnect plate.
Connect harness 12326536
(1A, 76, 54A, 459A, 486) to
master control panel.
Change 6