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.
O Reconnect driver's vehicle exhaust smoke bracket to
bulkhead connection wiring harness to driver's
switch plate disconnect. Disconnect wire 26B from
driver's VEHICLE EXHAUST SMOKE switch.
Place red lead of multimeter on wire 26B and black
lead to ground. Turn MASTER switch on and check
for voltage. Turn MASTER switch OFF. If voltage
is present, go to step P. If voltage is not present,
repair/replace wire 26B of driver's exhaust smoke
bracket to bulkhead connection wiring harness (see
paragraph 6-93).
P Reconnect wire 26B to driver's VEHICLE
EXHAUST SMOKE switch. Disconnect wire T from
driver's VEHICLE EXHAUST SMOKE switch.
Place red lead of multimeter on wire T and black
lead to ground. Turn MASTER and driver's
VEHICLE EXHAUST SMOKE switches ON and
check for voltage. Turn MASTER and driver's
VEHICLE EXHAUST SMOKE switches OFF. If
voltage is present, repair/replace wire T of driver's
vehicle exhaust smoke bracket to bulkhead
connection wiring harness (see paragraph 6-93). If
voltage is not present, replace driver's VEHICLE
EXHAUST SMOKE switch (see paragraph 16-4).
Q Reconnect driver's vehicle exhaust smoke bracket to
bulkhead connection wiring harness to driver's
switch plate disconnect. Disconnect wire 26B from
Y-connector behind gage panel. Place red lead of
multimeter on connector and black lead to ground.
Turn MASTER switch on and check for voltage.
Turn MASTER switch OFF. If voltage is present,
repair/replace wire 26B of driver's vehicle exhaust
smoke bracket to bulkhead connection wiring
harness (see paragraph 6-93). If voltage is not
present, go to step R.
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