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
Place red lead of multimeter on pin A of main switch
and black lead on pin F of main switch. Check for
continuity. If continuity is present, repair/replace wire
75 of main lighting and master relay wiring harness
(see paragraph 6-70). If continuity is not present,
replace main lighting switch (see paragraph 6-10).
I
Reconnect
switch
panel
to
gage
panel
and
miscellaneous switches wiring harness to main
switch panel. Install main switch panel (11), flat
washer (10), ground wire (9), three lockwashers (8),
and three screws (7). Disconnect wire 75/16 at
stoplight switch. Place red lead of multimeter in wire
75/16 and black lead to ground. Turn MASTER
switch on, UNLOCK and move main lighting switch
to B.O. MARKER position, and check for voltage.
Turn MASTER and main lighting switches OFF. If
voltage is present, go to step J. If voltage is not
present, repair/replace wire 75/16 of switch panel to
gage panel and miscellaneous switches wiring
harness (see paragraph 6-55 for dual voltage; 6-56
for single voltage).
2—
303
