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TM 9-2320-360-20-1
WARNING
Jewelry can catch on equipment
and cause injury or short across
electrical circuit and cause severe
burns or electrical shock. Remove
rings.
bracelets,
watches,
necklaces, and any other jewelry
before
working
around
HET
Tractor.
VOLTAGE TEST
(1) Turn ENGINE switch OFF and remove
ECM power connector.
(2) Remove ECM 6-pin power connector.
(3) Remove ECM vehicle harness from ECM
(4) Turn ENGINE switch ON.
(5) Read voltage A3 (red lead) to a good
ground (black lead).
(6) Read voltage C3 (red lead) to good
ground (black lead).
(1) Turn ENGINE switch OFF.
(2) Reconnect all harness connectors.
(3) Turn ENGINE switch ON and
observe
CHECK
ENGINE
Indicator.
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