CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19
ELECTRICAL TROUBLESHOOTING-Continued
TRANSMISSION OIL PRESSURE GAGE-Continued
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.
F
Reconnect bulkhead to engine bracket and rear fuel
tank transmitter wiring harness to bulkhead and
disconnect from engine disconnect. Place red lead of
multimeter in socket D of wire 321 and black lead to
ground. Turn MASTER switch on and check for
voltage. Turn MASTER switch OFF. If voltage is
present, go to step G. If voltage is not present,
repair/replace wire 321 of bulkhead to engine bracket
and rear fuel tank wiring harness (see paragraph 6-73
for dual voltage; 6-74 for single voltage).
G
Reconnect bulkhead to engine bracket and rear fuel
tank wiring harness to engine disconnect.
Disconnect wire 321 from transmission oil pressure
sending unit. Place red lead of multimeter on wire
321 and black lead to ground. Turn MASTER switch
on and check for voltage. Turn MASTER switch OFF.
If voltage is present, replace transmission oil pressure
sending unit (see paragraph 6-19). If voltage is not
present, repair/replace wire 321 of engine wiring
harness (see paragraph 6-58 for dual voltage; 6-59 for
single voltage).
2-122