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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) Open engine access panel (TM 10-
3930-669-10).
(2) Disconnect connector P21 from master
cylinder pressure switch connector.
(3) Set multimeter select switch to VOLTS
DC.
(4) Connect positive (+) multimeter lead to
connector P21, terminal 1.
(5) Connect negative (-) multimeter lead to
a known good ground.
(6) Set MAIN POWER switch to ON
position (TM 10-3930-669-10).
(7) Set engine switch to ignition position
(TM 10-3930-669-10).
(a) If there are not 22 to 24 Vdc
present, perform Steps (8) through
(11) below and go to Step 5 of this
Fault.
(b) If there are 22 to 24 Vdc present,
perform Steps (8) and (9) below and
go to Step 3 of this Fault.
(8) Set engine switch to off position.
(9) Set MAIN POWER switch to OFF
position.
(10) Connect connector P2 1 on master
cylinder pressure switch connector.
(11) Close engine access panel (TM 10-
3930-669-10).
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