TM 9-2350-256-20-1
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CORRECTIVE ACTION Continued
6.
Reconnect headlight and dimmer switch wiring harness to dimmer switch. Remove three screws (6),
three lockwashers (7), ground wire (8), and flat washer (9) and release main switch panel (10) from
mounting bracket. Disconnect switch panel to gage panel and miscellaneous switches wiring harness
from main switch panel. Place red lead of multimeter on pin N 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 8. If voltage is not present, go to step 7.
7.
Open air inlet doors (TM 9-2350-256-10). Reconnect switch panel to gage panel and miscellaneous
switches wiring harness to main switch panel. Disconnect wire 48 pin A from bulkhead to master relay
wiring harness. Place red multimeter lead in socket A 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 WP 0202 00). If voltage is not present, troubleshoot master relay circuit
(see WP 0042 00).
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