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.
H
Reconnect headlight and dimmer switch wiring
harness to dimmer switch. Disconnect wire 514 of
headlight base assembly at connector. Place red lead
of multimeter in wire 514 and black lead to ground.
Turn MASTER switch on, UNLOCK and move main
lighting switch to B.O. DRIVE position, B.O.
SELECTOR switch to IR, press dimmer switch, and
check voltage. Turn MASTER, main lighting, B.O.
SELECTOR, and dimmer switches off. If voltage is
present, repair/replace wire 514 of headlight base
wiring harness (see paragraph 6-64). If voltage is not
present, repair/replace wire 514 of headlight and
dimmer switch wiring harness (see paragraph 6-65).
I
Place red lead multimeter in socket C of wire 514/515
and black lead to ground. Turn MASTER switch on,
UNLOCK and move main lighting switch to B.O.
DRIVE position, B.O. SELECTOR switch to IR, and
check for voltage. Turn MASTER, main lighting, and
B.O. SELECTOR switches off. If voltage is present,
replace dimmer switch (see paragraph 6-25). If
voltage is not present, go to step J.
2—
293
