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 TM 9-2320-366-20-1
WARNING
Remove rings, bracelets, watches, necklaces,
and any other jewelry before working around
vehicle. Jewelry can catch on equipment and
cause injury or short across electrical circuits
and cause severe burns or electrical shock.
CAUTION
Use care when testing electrical connectors.
Do not damage connector pins or sockets
with multimeter probes. Failure to comply
may result in damage to equipment.
NOTE
Inspect connector pins/sockets for damage,
corrosion, and serviceability. Check that
connector pins are not pushed back or not
capable of making good contact.
VOLTAGE TEST
(1) Remove instrument panel for access
(para 7-15).
(2) Disconnect connector clamp from FRONT
BRAKE AIR pressure gage connector.
(3) Disconnect connector PX4 from FRONT
BRAKE AIR pressure gage connector.
(4) Set multimeter to volts DC.
(5) Connect positive (+) probe of multimeter to
connector PX4 pin 3.
(6) Connect negative (-) probe of multimeter to
ground.
(7) Position master power switch to on (TM 9-
2320-366-10-1).
(8) If 24 VDC is not present, repair wire 1546
from connector PX4 pin 3 to connector
PX9 pin 3 (para 2-45) or replace WTEC II
dashboard cable assembly (para 7-10) or
WTEC III dashboard cable assembly
(para 7-11).
(9) Position master power switch to off (TM 9-
2320-366-10-1).
Change 1
2-334.5
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