SECTION V: TROUBLESHOOTING
TM 9-2350-256-20
WARNING
Remove all jewelry such as rings, dog tags,
bracelets, etc. If jewelry contacts a metal
surface a direct short may result in instant
heating of tools, damage to equipment, and
injury or death to personnel.
N Reconnect gage panel to bulkhead wiring harness to
bulkhead disconnect. Remove engine deck (see
paragraph 9-51). Disconnect bulkhead to engine bracket
and rear fuel tank transmitter wiring harness from engine
disconnect. Place a jumper wire from pin M to socket M.
Place red lead of multimeter in socket N of wire 509 and
black lead to ground. Turn MASTER switch on, start
engine, set to idle, and check for voltage. Turn engine
and MASTER switch OFF. If voltage is present, go to
step O. If voltage is not present, repair/replace wire 509
of bulkhead to engine bracket and rear fuel tank
transmitter wiring harness (see paragraph 6- 73 for dual
voltage; 6-74 for single voltage).
O Reconnect bulkhead to engine bracket and rear fuel tank
transmitter wiring harness to engine disconnect. Remove
powerplant (see paragraph 3-1). Disconnect wire 509
from engine low oil pressure switch. Place red lead of
multimeter in wire 509 and black lead to ground. Turn
MASTER switch on, start engine, set to idle, and check
for voltage. Turn engine and MASTER switch OFF. If
voltage is present, replace engine low oil pressure switch
(see paragraph 6-22). If voltage is not present,
repair/replace wire 509 of engine wiring harness from
engine low oil pressure switch to engine disconnect (see
paragraph 6-58 for dual voltage; 6-59 for single voltage).
P
Disconnect
wire
509
from
transmission
high
oil
temperature switch. Place red lead of multimeter in wire
509 and black lead to ground. Turn MASTER switch on,
start engine, set to idle, and check for voltage. Turn
engine and MASTER switch OFF. If voltage is present,
replace transmission high oil temperature switch (see
paragraph 6-19). If voltage is not present, repair/replace
wire 509 of engine wiring harness from transmission high
oil temperature switch to engine disconnect (see
paragraph 6-58 for dual voltage; 6-59 for single voltage).
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