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TM 10-3930-669-20
WARNING
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts battery terminal, a
direct short may result in instant heating of tools, damage to equipment, and injury or death to
personnel.
VOLTAGE TEST
(1) Remove taillight lamp (Para 7-31).
(2) Set multimeter select switch to
VOLTS DC.
(3) Connect positive (+) multimeter lead
to stoplight contact.
(4) Connect negative (-) multimeter
lead to a known good ground.
(5) Set MAIN POWER switch to ON
position (TM 10-3930-669-10).
(6) Apply brake and set engine switch to
ignition position (TM 10-3930-669-
10).
(a) If there are not 22 to 24 vdc
present,
perform
Steps
(7)
through (9) below and go to
Step 3 of this Fault.
(b) If there are 22 to 24 vdc present,
perform Steps (7) and (8) below
and go to Step 2 of this Fault.
(7) Set engine switch to off position and
release brake.
(8) Set MAIN POWER switch to OFF
position.
(9) Install taillight lamp.
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