Evinrude E-Tec 40 HP, Service Manual, Page: 64 / 426

62
ENGINE MANAGEMENT MODULE (EMM)
S.A.F.E. WARNING SYSTEM
S.A.F.E. WARNING
SYSTEM
The
S.A.F.E.
(
Speed Adjusting Failsafe Electron-
ics
) warning system alert s the operator and pro-
tects against engine d amage fro m t he fo llowing
abnormal conditions:
Activation
When one of these conditions occurs, the
EMM
interrupts fuel injector and ignition o peration,
reducing engine speed to 1200 RPM. The warning
horn sounds and an Engine Monitor message dis-
plays. When
S.A.F.E.
is active, the engine will run
normally below 1200 RPM. Above 1200 RPM, the
engine will shake excessively.
Recovery
The engine will operate in
S.A.F.E.
as long as the
fault condition exists. To recover normal operation,
two conditions must be met:
•
Sensor or switch readings must be back with in
limits
•
The
EMM
must be reset—stop and restart
SHUTDOWN MODE
Outboard “sh utdown” will occur if specific fault s
are detected by the
EMM
:
Code 57 occurs when the
EMM
d etects abn or-
mally high RPM relative to the TPS positio n. This
condition could be cause d by u ncontrolled fue l
entering the co mbustion cycle. Before removing
the code and ST ARTING the outb oard, find and
repair the cause.
•
Perform
Fuel System Pressure Test
on p. 137.
Check for external fuel leakage that could allow
fuel and/o r vapo r to enter th e engine throug h
the air intake.
•
Check for internal fue l le akage from a le aking
injector or vapor separator vent hose.
Recovery
To recover from shu tdown mode, the
EMM
must
NOT detect the re lated fault at st art-up. The o ut-
board will not restart u ntil the cause of t he
occurred service co de is resolved (cod e 29 and
31) and the code is cleared using diagnostics soft-
ware (code 3 3 and 5 7). Then, the
EMM
must be
turned OFF and ON again.
IMPORTANT:
Shutdown relate d to code 57 or
33 requires th e removal of th e occurred service
code. Use
Evinrude Diagnostics
software to clear
a code 57 or 33.
Code 17 Alternator 55 V below expected range
Code 18 Alternator 55 V above expected range
Code 25
EMM
temperature above expected
range
Code 34 Oil injector open circuit
Code 40 Cylinder head temperature above
expected range–low speed
Code 43 Cylinder head temperature above
expected range–high speed
Code 117 NO OIL detected
Code 29 Excessive
EMM
temperature
Code 31 Excessive engine temperature
Code 33 Excessive NO OIL condition
Code 57 High RPM with low TPS setting
A
WARNING
If the engine shuts OFF and the “CHECK
ENGINE” light or
EMM SENSOR FAULT
LED is flashing, the engine cannot be
restarted. A hazardous fuel condition may
exist which could result in a fire or explo-
sion.