TM 5-3805-262-20
3-26. SIGNALING DEVICES TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. BACK-UP ALARM DOES NOT SOUND (OTHER CIRCUITS OPERATING OKAY).
Disconnect violet-red wire spade
terminal from wire lead terminal
of back-up alarm switch
i n s t a l l e d i n t r a n s m i s s i on
control valve by grasping
terminals with your fingers and
firmly pulling them apart.
Connect multimeter between
violet-red wire terminal and
chassis frame.
Check that multimeter indicates
2 4 v o l t s.
a. If multimeter does not indicate
24 volts, check violet-red
wire between loader 30 ampere circuit breaker and back-up alarm
Step 1.
switch for open condition. Repair or replace wire as necessary
(page 5-174).
b. If multimeter indicates 24 volts, go to step 2 below.
Step 2.
Engage transport/service link (page 9-8).
Disconnect black-red wire spade terminal from wire lead terminal of
back-up alarm switch installed in transmission control valve by
grasping terminals with your fingers and firmly pulling them apart.
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