CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19 ELECTRICAL TROUBLESHOOTING-Continued
EXHAUST SMOKE GENERATING SYSTEM---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.
I Reconnect wire 27A of driver's vehicle exhaust
smoke bracket to bulkhead connection wiring
harness to Y-connector. Disconnect wire 27 of switch
panel to gage panel and miscellaneous switches
wiring harness from Y-connector. Place red lead of
multimeter on wire 27 and black lead to ground.
Turn MASTER switch on and check for voltage.
Turn MASTER switch OFF. If voltage is present,
replace Y-connector (see paragraph 6-93). If
voltage is not present, repair/replace wire 27 of
switch panel to gage panel and miscellaneous
switches wiring harness (see paragraph 6-55 for
dual voltage; 6-56 for single voltage).
J Place red lead of multimeter in socket C of wire 26B
and black to ground. Turn MASTER switch on and
check for voltage. Turn MASTER switch OFF. If
voltage is not present, go to step Q. If voltage is
present, go to step K.
K Place red lead of multimeter in socket D of wire T
and black lead to ground. Turn MASTER switch on
and check for voltage. Turn MASTER switch OFF.
If voltage is present, go to step L. If voltage is not
present, go to step 0.
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