97
ENGINE MANAGEMENT MODULE (EMM)
SENSORS AND FUNCTIONS
4
SENSORS AND
FUNCTIONS
Sensor inputs and internal EMM controllers are
used to control outboard operation. Use the
Evinrude Diagnostics Software program to trou-
bleshoot the sensors. Refer to Evinrude EMM
Service Code Chart at back of manual for com-
plete list of al engine fault codes.
Internal Sensors
Internal sensors are NOT serviceable. Repro-
gramming or replacement may be required to
resolve EMM related issues.
EMM Temperature Sensor
Monitors the temperature of the fuel injector driver
circuits.
If the EMM temperature exceeds 176°F (80°C) or
the circuit fails, the EMM:
If EMM temperature exceeds 212°F (100°C) or
the circuit fails, the EMM:
IMPORTANT: The outboard will not restart until
the engine cools below 212°F (100°C )and the
EMM temperature returns to normal. Refer to
SHUTDOWN MODE on p. 103.
If EMM temperature is less than -22°F (-30°C) or
the circuit fails, the EMM:
Sensor indicates less than -71°F (-57.4°C) or
greater than 314°F (156.9°C) a sensor circuit fault
is detected and the EMM:
55 V Circuit Sensor
Monitors the EMM’s 55 V alternator circuit.
If system voltage exceeds 57 volts, the EMM:
If system voltage is below 45 volts with outboard
running 500 to 1000 RPM or is below 52 volts with
outboard running above 1000 RPM, the EMM:
12 V Circuit Sensor
Monitors the EMM’s 12 V alternator circuit.
If battery voltage exceeds 15.5 volts, the EMM:
If battery voltage is below 12 volts with outboard
running 500 to 2000 RPM OR is below 12.5 volts
with outboard running above 2000 RPM, the
EMM:
Activates S.A.F.E.
Stores a service code 25
Initiates EMM NO OIL/OVERHEAT LED
Initiates the SystemCheck TEMP/HOT light
Activates SHUTDOWN
Stores a service code 29
Flashes EMM NO OIL/OVERHEAT LED
Flashes SystemCheck TEMP/HOT light
Stores a service code 24
Initiates EMM NO OIL/OVERHEAT LED
Stores a service code 23
Initiates EMM NO OIL/OVERHEAT LED
Activates S.A.F.E.
Stores a service code 18
Initiates EMM CHARGING FAULT LED
Initiates the SystemCheck
CHECK ENGINE light
Activates S.A.F.E.
Stores a service code 17
Initiates EMM CHARGING FAULT LED
Initiates the SystemCheck
CHECK ENGINE light
Stores a service code 27
Initiates EMM CHARGING FAULT LED
Stores a service code 26
Initiates EMM CHARGING FAULT LED
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