CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19 ELECTRICAL TROUBLESHOOTING-Continued
B.O. SERVICE CONDITION (B.O. STOPLIGHT)-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
Install hydraulic access cover (6), two lockwashers
(5), and two screws (4). Open air inlet doors (TM 9-
2350-256-10). Disconnect bulkhead to master relay
and left and right taillight wiring harness from
bulkhead. Place red lead of multimeter in socket C
of wire 23 and black lead to ground. Turn MASTER
switch on, UNLOCK and place main lighting switch to
B.O. MARKER position, apply brakes, and check for
voltage. Turn MASTER and main lighting switches
OFF. If voltage is present, repair/replace wire 23 of
bulkhead to master relay and left and right taillight
wiring harness (see paragraph 6-71). If voltage is
not present, go to step D.
2—
300
