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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.
VOLTAGE TEST
(1) Set multimeter select switch to
volts dc.
(2) Connect positive (+) multimeter lead
to vehicle harness connector MC18,
terminal B3.
(3) Connect negative (- ) multimeter lead
-
to a known good ground.
(4) Turn ON ENGINE switch
(TM 9-2320-364-10).
(5) Are there 10 to 14 vdc present
between wire 439 at vehicle harness
connector MC18, terminal B3 and a
known good ground?
(a) If there are less than 10 vdc
present, turn OFF ENGINE
switch and repair wire 439 (see
schematic Fig 2-1) or notify
DS Maintenance.
(b) If there are more than 10 vdc
present, turn OFF ENGINE switch
and go to Step 4 of this Fault.
CONTINUITY TEST
(1) Remove ten screws and sunshield
from instrument panel.
(2) Pull top of instrument panel towards
steering wheel.
(3) Remove CEL lamp (Para 7-24).
(4) Set multimeter select switch to ohms.
(5) Is continuity measured across
terminals of CEL indicator lamp?
(a) If there is no continuity, replace
lamp (Para 7-24) and perform
Step (7) below.
(b) If there is continuity, lamp is OK.
Perform Steps (6) and (7) below.
(6) Install CEL lamp.
(7) Install instrument panel and
sunshield with ten screws.
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