TM 5-5420-202-20-1
DETAILED TROUBLESHOOTING PROCEDURE
VEHICLE OPERATION HULL POWER
(Continued)
Symptom-31.1
63
Check continuity of CKT 1A across fuel pump
switch.
Second Technician (Operator's Station)
Set FUEL PUMPS switch to ON.
Connect black probe of meter to harness
12326547 terminal at the fuel pump switch.
Connect red probe of meter to wire 37 terminal
at the fuel pump switch.
Check if meter indicates continuity.
Does meter indicate continuity?
64
Replace FUEL PUMPS switch
(page 10-47).
Disconnect "T" harness from
harness 12326542 connector (1,
1A, 532, 533, 534).
Disconnect "T" harness from
voltage regulator.
Connect harness 12326542
connector (1, 1A, 532, 533, 534)
65
Replace wire 1A (page 10-38)
to voltage regulator.
Replace commander's floor plate
Disconnect "T" harness from
(page 17-9).
harness 12326542 connector (1,
YES
NO
1A, 532, 533, 534).
Disconnect "T" harness from
voltage regulator.
Connect harness 12326542
connector (1, 1A, 532, 533, 534)
to voltage regulator.
Replace commander's floor plate
(page 17-9).