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TM 9-2320-364-20-3
2-2173
(1) Remove ten screws, sunshield and tilt
instrument panel.
(2) Disconnect connector MC 109 from
CTIS front manifold.
(3) Set multimeter select switch to ohms.
(4) Disconnect front manifold harness
connector MC 111 from back of CTIS
controller.
(5) Connect jumperwire between wire 1056
on CTIS controller connector MC 111,
terminal 1 and a known good ground.
(6) Is there continuity between connector
MC 109, terminal 1 and front manifold
ground braid?
(a) If there is no continuity, repair wire
1056 (see schematic Fig 2-48) or
notify DS Maintenance, and perform
Steps (7) through (9) below.
(b) If there is continuity, wire 1056
is OK.
(7) Check continuity of remaining wires and
terminals using Steps (5) and (6) above.
The wires and corresponding terminals
are listed below (see schematic
Fig 2-48).
1057(2)
1063(5) to ground (MC109
only)
1058(3)
1061(6)
Shield (8)
1059(4)
1062(7)
1064(9)
1065(10)
(8) Remove jumperwire.
(9) Connect connector MC 111 to back of
CTIS controller.
CONTINUITY TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
NOTE
Terminal (5) at MC111 is plugged and does
not connect to terminal (5) on MC109.
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