TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
22. PRESSURE SENSORS, PS1 / PS2, INOPERATIVE, ERROR CODE 26 AND 27,
(MODEL B ONLY) (continued).
CONTINUITY TEST
CAUTION
Electrical power must be shut
off from circuit before continuity
can be checked. Failure to
comply with this caution may
result in damage to test
equipment or electrical
system.
POSITION
19
(1) Loosen connector screw and remove
connector from the pressure sensor(s)
(PS1) or (PS2).
J3
(2) Set multimeter to ohms position.
POSITION
NOTE
21
A reading of infinity indicates an
open circuit.
POSITION
J4
28
(3) Connect multimeter leads to each end
of wire and check multimeter for
POSITION
20
continuity. For (PS1) check for
continuity between (J3), position "19"
HYDRAULIC
and sensor connector, position "1",
HYDRAULIC
PRESSURE
PRESSURE
(J4), position "28", and sensor
SENSOR
SENSOR
connector, position "2", and (J4),
CONNECTOR
PS2
position "20" and sensor connector,
position "3".
(4) Do the same test as above for
pressure sensor (PS2) except use
PS1
(J4), position "21" and sensor
connector, position "3". Check
multimeter for continuity.
POSITION 3
POSITION 1
POSITION 2
4-44-433
14.47
Change 1
