Engine Control Systems; Internal Sensors; Emm Temperature Sensor; Circuit Sensor - BRP Evinrude E-TEC G2 Service Manual

Engine and Control Systems

Engine Control Systems

Engine Control Systems
Sensor inputs and internal EMM controllers are
used to control the outboard's engine operation.
Use Evinrude Diagnostics software to trouble-
shoot the sensors. Refer to the Fault Code Chart
for a complete list of all 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:
Activates S.A.F.E.
Stores fault code 25
Engine Monitor: TEMP display ON
If EMM temperature exceeds 212°F (100°C) or
the circuit fails, the EMM:
Activates SHUTDOWN
Stores fault code 29
Engine Monitor: TEMP display ON
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. 89.
If EMM temperature is less than -22°F (-30°C) or
the circuit fails, the EMM:
Stores fault code 24
If sensor reads less than -67°F (-55°C) or greater
than 311°F (155°C) a sensor circuit fault is
detected and the EMM:
Stores fault code 23
80
55 V Circuit Sensor
Monitors the EMM's 55 V alternator circuit.
If system voltage exceeds 57 volts, the EMM:
Activates S.A.F.E.
Stores fault code 18
Engine Monitor: CHECK ENGINE display ON
If system voltage is less than 45 V between 500
and 1000 RPM, or is less than 52 V above 1000
RPM, the EMM:
Activates S.A.F.E.
Stores fault code 17
Engine Monitor: CHECK ENGINE display ON
12 V Circuit Sensor
Monitors the EMM's 12 V alternator circuit.
If battery voltage exceeds 15.5 volts, the EMM:
Stores fault code 27
Engine Monitor: BATTERY display ON
If battery voltage is less than 12 V below 2000
RPM, or is less than 12.5 V above 2000 RPM, the
EMM:
Stores fault code 26
Engine Monitor: BATTERY display ON
5 V Circuit Sensor
Monitors the EMM's 5 V sensor circuit.
If sensor voltage is less than 4.75 volts, the EMM:
Stores fault code 78

Barometric Pressure Sensor

Supplies the EMM with barometric pressure read-
ing to compensate for changes in altitude and air
density.
If the BP sensor reads less than 13 KPa or greater
than 119.0 KPa, or the sensor or circuit fails, the
EMM:
Stores fault code 44