SECTlON 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.
A Remove lamp from socket. Place red lead of
multimeter in socket 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,
replace lamp (see paragraph 16-4). If voltage is
not present, go to step B.
B Reinstall lamp to socket. Disconnect wire T2 from
indicator light. Place red lead of multimeter on
wire T2 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, replace lamp
socket (see paragraph 16-4). If voltage is not
present, go to step C.
C Reconnect wire T2 to indicator light. Disconnect
driver's vehicle exhaust smoke bracket to bulkhead
connection wiring harness from driver's switch
plate disconnect behind switch panel. Place red
lead of multimeter in socket B of wire 27A and
black lead to ground. Turn MASTER switch on and
check for voltage. Turn MASTER switch OFF. If
voltage is present, go to step J. If voltage is not
present, go to step D.
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