ARMY
TM 5-6115-612-34
MARINE CORPS
TM 6115-34/8
10-2. ENGINE
ELECTRONIC
CONTROL
MODULE (EECM). (cont.)
a. Test. (cont.)
(e) Quickly increase
frequency
generator to a frequency between 1965 and 2059
Hz. STARTER and IGNITION lights should go off
and FUEL light should remain on.
(f) Move MASTER SWITCH to OFF
position. All lights should go off.
(g) Any discrepancy noted during
the above procedure indicates a failure in the
EECM. Refer to table 2-4, Malfunction 3.
(9) One hundred percent switch test.
(a) Adjust function generator to a
frequency between 0 and 200 Hz and adjust
millivolt source to .96 to 1.20 millivolts.
NOTE
EECM electronics requires a frequency
b e l o w 2 0 0 H z.
(b) Move MASTER SWITCH to
RUN position. All lights should be off.
NOTE
Read step (c) completely before per-
forming step (c).
(c) Move MASTER SWITCH to
START position.
The STARTER light should
come on. Immediately increase function generator
frequency until READY TO LOAD light comes
on. This should happen between 3287 and 3421
Hz.
Do not take longer than 15 seconds to
complete step (c).
During frequency increase.
IGNITION and FUEL lights will come on. When
READY TO LOAD light comes on the STARTER
and IGNITION lights should have gone off and the
FUEL light remain on.
(d) Move MASTER SWITCH to OFF
position. All lights should go off.
AIR FORCE
TO 35C2-3-471-2
NAVY
AG-320B0-MME-000
(e) Any discrepancy noted failure
in the EECM generator enable circuit. Refer to
Table 2-4, Malfunction 6.
(10) Contactor enable test.
(a) Adjust function generator to a
frequency between 0 and 200 Hz and adjust
millivolt source to .96 to 1.20 millivolts.
NOTE
EECM electronics requires a frequency
below 200 Hz.
(b) Move MASTER SWITCH to
RUN position. All lights should be off.
NOTE
Read step (c) completely before per-
forming step (c).
(c) Move MASTER SWITCH to
START position.
The STARTER light should
come on. Immediately increase function generator
frequcny until READY TO LOAD light come on.
This should happen between 3287 and 3421 Hz.
Do not take longer than 15 seconds to complete
step (c).
During frequency increase, IGNITION
and FUEL lights will come on. When READY
TO LOAD light comes on, the STARTER and
IGNITION lights should have gone off and the
FUEL light remain on.
(d) Move
CONTACTOR switch
mememtarily to CLOSED position. CONTACTOR
ENABLE light should come on.
(e) If CONTACTOR ENABLE light
does not come on, refer to Table 2-4, Malfunction
9.
(f) Move CONTACTOR ENABLE
SWITCH momentarily to OPEN position. CON
TACTOR ENABLE light should go off and the
READY TO LOAD and FUEL Lights should
remain on.
(g) Move MASTER SWITCH to OFF
position. All lights should be off.
Change 1
10-13