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TM 9-2320-364-20-1
Allow engine to cool before performing troubleshooting maintenance. If necessary use insulated pads
and gloves. Hot engine components will burn and cause injury to personnel.
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.
(1) Remove ten screws and sunshield
from instrument panel.
(2) Pull top of instrument panel
towards steering wheel.
(3) Disconnect vernier control harness
connector MC38.
(4) Are 10,000 ohms or less present
between wires 916 and 952 at TPS
harness connector MC6, terminals
A and C?
(a) If there are 10,000 ohms or less
present, repair wire(s) 916
and/or 952 (see schematic
Fig 2-1) or notify DS
Maintenance.
(b) If there are more than 10,000
ohms present, go to Step (5)
below.
(5) Are there 10,000 ohms or less
present between wire 417 at TPS
harness connector MC6, terminal B
and a known good ground?
(a) If there are 10,000 ohms or less
present, repair wire 417 (see
schematic Fig 2-1) or notify DS
Maintenance.
(b) If there are more than 10,000
ohms present, go to Step 5 of
this Fault.
VOLTAGE TEST
(1) Set multimeter select switch to
volts dc.
(2) Connect positive (+) multimeter lead
to vernier control harness connector
MC38, terminal C.
(3) Connect negative (- ) multimeter lead
-
to vernier control harness connector
MC38, terminal A.
(4) Turn ON ENGINE switch
(TM 9-2320-364-10).
(5) Are there more than or equal to 4.7
vdc present on wire 916 to wire 952
at vernier control harness connector
MC38, terminals C to A?
(a) If there are less than 4.7 vdc
present, turn OFF ENGINE switch
and repair wires 916 and/or
952 (see schematic Fig 2-1) or
notify DS Maintenance.
(b) If there are 4.7 vdc or more
present, turn OFF ENGINE switch
and go to Step 6 of this Fault.

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