Internal Sensors
Sensor inputs and internal EMM controllers are used to control out board operation. Use the Evinrude Diagnostics software to troubleshoot the sensors. Refer to EMM Service Code Chart at the back of this manual for a complete list of all engine fault codes.
Internal sensors are NOT serviceable. Re programming or replacement ma y 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:
| Interrupts the ignition once per 50 engine revolutions to signal the operator |
| Stores service code 25 |
| EMM LED 4: ON (Running) |
| Code 117 |
If EMM temperature exceeds 212°F (100 °C) or the circuit fails, the EMM:
| Activates S.A.F.E. |
| Stores service code 29 |
| EMM LED 4: FLASHING |
| Gauge (opt) TEMP display: FLASHING |
If EMM temperature is less than -22°F (-30°C) or the circuit fails, the EMM:
| Stores service code 24 |
| EMM LED 3: OFF (Cranking) |
| EMM LED 3: ON (Running) |
If sensor read s less than -71°F (-57 .4°C) or greater than 313 °F (156°C), a sensor circuit fault is detected and the EMM:
| Stores service code 23 |
| EMM LED 3: OFF (Cranking) |
| EMM LED 3: ON (Running) |
55 V Circuit Sensor
Monitors the EMM’s 55 V alternator circuit.
If system voltage exceeds 57 volts, the EMM:
| Stores service code 18 |
| EMM LED 1: ON (Running) |
| Gauge (opt) CHECK ENGINE display: ON |
If system voltage is less than 45 V, the EMM:
| Stores service code 17 |
| EMM LED 1: ON (Running) |
| Gauge (opt) 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 service code 27 |
| EMM LED 1: ON (Running) |
| Gauge (opt) CHECK ENGINE display: ON |
If battery voltage is below 12.5 volts, the EMM:
| Stores service code 26 |
| EMM LED 1: ON (Running) |
| Gauge (opt) CHECK ENGINE 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 service code 78 |
| EMM LED 3: OFF (Cranking) |
| EMM LED 3: ON (Running) |
Barometric Pressure Sensor
Supplies the EMM with barometric pressure reading to compensate for changes in altitude and air density.
If the BP sensor reads less than 13.3 KPa or greater than 119.0 KPa, or the sensor or circuit fails, the EMM:
| Stores service code 44 |
If the BP sensor reads less than 70 KPa, the EMM:
| Stores service code 45 |
If the BP sensor reads greater than 105 KPa, the EMM:
| Stores service code 46 |
External Sensors
Sensor inputs and intern al EMM controllers a re used to control outboard operation. Use Evinrude Diagnostics software to troubleshoot the sensors. Refer to the EMM Service Code Chart at the back o f this manual for a complete list of all engine fault codes.
The EMM provides a 5 V DC signal for sensor circuits. It monitors all sensor volt age inputs and compares them to predetermined accept able ranges. Inputs that fall outside of the acceptable range create service codes.
Air Temperature Sensor
The air temperature sensor monitors the air temperature at the throttle body.
If t he AT sensor voltage is out of the expected range, or the sensor or circuit fails, the EMM:
| Stores service code 47, 48, or 49 |
| EMM LED 3: OFF (Cranking) |
| EMM LED 3: ON (Running) |
