Evinrude E-TEC E40DPLSCB, Service Manual, Page: 92 / 369

90
ENGINE MANAGEMENT MODULE (EMM)
EXTERNAL SENSORS
Engine Temperature Sensor
Monitors cylinder head temperature . The sensor
is a negative temperature coefficient thermistor
(NTC).
If cylinder head temperature exceeds 212° F
(100° C), the
EMM
:
If cylinder head temperature exceeds 248°F
(120°C), the
EMM:
The outboard will not restart after a temperature
related SHUTDOWN until the engine temperature
returns to normal. Refer to
SHUTDOWN MODE
on p. 94.
If sensor values are below -15°F (-26.1°C) or
above 331°F (166.5°C), the
EMM:
If sensor values are below -4°F (-20°C), the
EMM:
If engine does not reach operating temperature on
cylinder head (104°F / 40°C below 2300 RPM) in
10 minutes, the
EMM
:
Low Oil Switch
The low oil switch monitors the oil level in the oil
tank.
If the oil level falls below one-quarter capacity, the
EMM
signals:
When the oil level falls below one-quarter, the
EMM
begins counting oil pump pulse cycles.
When it reaches 4800 pulses, the
EMM
:
To recover from
S.A.F.E.
mode, the oil pump must
cycle for a minimum of three pulses with the oil
level above one-quarter.
If outboard has been run for more than 3 hours
with NO OIL faults (codes 34 & 117), the
EMM
Throttle Position Sensor
The throttle position sensor is connected to the
throttle plate shaft. The sensor receives a voltage
signal from the
EMM
. As the throttle lever is
rotated, the
EMM
receives a return voltage signal
through a second wire. This signal increases as
the TPS lever is advanced. A third wire provides a
ground circuit back to the
EMM
.
Refer to TPS Calibration on p. 143.
If the TPS circuit reads above 0.78 volts when the
key is turned to ON, or the recoil starter is pulled,
the
EMM
:
If the outboard starts, the code is stored.
Activates
S.A.F.E.
Stores service code 43
EMM
LED 4: ON (Running)
Engine Monitor TEMP display: ON
Activates SHUTDOWN
Stores service code 31
EMM
LED 4: FLASHING
Engine Monitor TEMP display: FLASHING
Stores service code 41
EMM
LED 3: OFF (Cranking)
EMM
LED 3: ON (Running)
Stores service code 42
EMM
LED 3: OFF (Cranking)
EMM
LED 3: ON (Running)
Stores service code 58
EMM
LED 3: OFF (Cranking)
EMM
LED 3: ON (Running)
Engine Monitor LOW OIL display: ON
Activates
S.A.F.E.
Stores service code 117
EMM
LED 4: ON (Running)
Engine Monitor NO OIL display: ON
Activates SHUTDOWN
Stores service code 33
EMM
LED 4: FLASHING
Engine Monitor NO OIL display: FLASHING
Creates service code 11