CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19
ELECTRICAL TROUBLESHOOTING-Continued
DOME LIGHTS-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.
C
Remove three screws (3), three lockwashers (4),
ground lead (5), and flat washer (6) and release main
switch panel (7) from mounting brackets. Disconnect
switch panel to gage panel and miscellaneous
switches wiring harness from main switch panel.
Place red lead of multimeter on pin E of wire 10 and
black lead to ground. Turn MASTER switch on and
check for voltage. Turn MASTER switch OFF. If
voltage is present, go to step F. If voltage is not
present, reinstall main switch panel and go to step I.
D
Place a jumper wire from pin E to socket E of wire 10.
Place red lead of multimeter in socket J of wire
38/999 and black lead to ground. Turn MASTER
switch on and check for voltage. Turn MASTER
switch OFF. If voltage is present, repair/replace wire
38/999
of
switch
panel
to
gage
panel
and
miscellaneous switches wiring harness (see paragraph
6-55 for dual voltage; 6-56 for single voltage). If
voltage is not present, go to step E.
2-242
