CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19 ELECTRICAL TROUBLESHOOTING-Continued
B.O. MARKER CONDITION--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.
K
Reconnect
switch
panel
to
gage
panel
and
miscellaneous switches wiring harness to main
switch panel. Install main switch panel (15), flat
washer (14), ground lead (13), three lockwashers
(12), and three screws (11). Open air inlet doors (TM
9-2350-256-10). Disconnect wire 48 pin A from
bulkhead to master relay wiring harness. Place red
multimeter lead in socket and black lead to ground.
Turn MASTER switch on and check for voltage. If
voltage is present, repair/replace switch panel, radio,
and bilge pump to bulkhead wiring harness (see
paragraph 6-53). If voltage is not present,
troubleshoot master relay circuit (see paragraph 2-
19, master relay fails to operate).
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