CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
TM 9-2350-256-20
2-19 ELECTRICAL TROUBLESHOOTING-Continued
BILGE PUMP SYSTEM AND ELECTRICAL ACCESSORIES PANEL POWER
OUTLET-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 Disconnect electrical accessories panel wiring
harness from electrical accessories panel. Place red
lead of multimeter in socket H of wire 450 and black
lead to ground. Turn MASTER switch on and check
for voltage. Turn MASTER switch OFF. If voltage
is present, go to step E. If voltage is not present, go
to step D.
D Reconnect electrical accessories panel wiring
harness to electrical accessories panel. Install
electrical accessories panel (3), four lockwashers
(2), and four screws (1) to mounting bracket. 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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