Step 1: INTERNAL SENSORS
Sensor inputs and internal EMM controllers are used to control outboard operation. Use Evinrude Diagnostics software to troubleshoot the sensors. Refer to the EMM Service Code Chart at the back of this manual for a complete list of all engine fault codes.
Internal sensors are NOT serviceable. Reprogramming or replacement may be required to resolve internal EMM issues.
EMM Temperature Sensor
Monitors the temperature of the fuel injector driver circuits.
If the EMM temperature exceeds 194°F (90°C) or the circuit fails, the EMM:
| Activates S.A.F.E |
| Stores service code 25 |
| EMM LED 4: ON (Running) |
If EMM temperature exceeds 212°F (100°C) or the circuit fails, the EMM:
| Activates SHUTDOWN |
| Stores service code 29 |
| EMM LED 4: FLASHING |
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. 88.
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 reads 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:
| Activates S.A.F.E. |
| Stores service code 18 |
| EMM LED 1: ON (Running) |
If system voltage is less than 45 V, the EMM:
| Activates S.A.F.E. |
| Stores service code 17 |
| EMM LED 1: ON (Running) |
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) |
If battery voltage is less than 12.5 V, the EMM:
| Stores service code 26 |
| EMM LED 1: 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 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 a service code 45
If the BP sensor reads greater than 105 KPa, the EMM:
Stores service code 46
Step 2: EXTERNAL SENSORS
Sensor inputs and internal EMM controllers are used to control outboard operation. Use Evinrude Diagnostics software to troubleshoot the sensors. Refer to the EMM Service Code Chart at the back of 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 voltage inputs and compares them to predetermined acceptable 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 the 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) |
