S.A.F.E. WARNING SYSTEM
The EMM activates S.A.F.E. (Speed Adjusting Failsafe Electronics) and the dash-mounted SystemCheck gauge and horn to alert the operator of abnormal operating conditions and to prevent engine damage that could result from:
- Loss of oil flow
- Engine overheat
- Excessive EMM temperature
- Excessive or reduced alternator output
IMPORTANT: The LOW Oil sender is not monitored by the EMM. This sender connects directly to the SystemCheck gauge.
Activation
When a sensor or switch provides the EMM with a specific fault signal, it responds by interrupting fuel injector and ignition operation. This results in a gradual reduction in engine RPM until the engine speed reaches 1200 RPM. The warning horn sounds and the appropriate SystemCheck light turns on. As long as S.A.F.E. is activated, the engine will run normally below 1200 RPM. Above 1200 RPM, the engine will vibrate excessively.
Conditions that initiate S.A.F.E.
| 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 38 | No oil pressure feedback |
| Code 43 | Engine temperature sensor above expected range |
Recovery
The engine will operate in S.A.F.E. as long as the fault condition exists. To recover from S.A.F.E., two conditions must be satisfied: sensor or switch parameters must be back within limits; and engine RPM must be reduced to idle. The system will immediately recover and engine operation will return to normal.
SHUTDOWN MODE
Outboard “shutdown” will occur if specific faults are detected by the EMM.
Conditions that initiate shutdown
| Code 29 | Excessive EMM temperature |
| Code 31 | Excessive engine temperature |
| Code 33 | Excessive no oil condition |
| Code 57 | High RPM with low TPS setting |
To recover from shutdown mode, the EMM must not detect the related fault at start-up.
If the engine shuts OFF and the “CHECK ENGINE” or “CHK ENG” or EMM SENSOR
FAULT LED light is flashing, the engine cannot be restarted. A hazardous fuel condition may exist which could potentially result in a fire or explosion.
IMPORTANT: Shutdown related to code 57 requires the removal of the stored service code. Use the diagnostic software program to erase a code 57.
Code 57 occurs when the EMM detects abnormally high RPM relative to the TPS position. This condition could be caused by uncontrolled fuel entering the combustion cycle. Before removing the code and STARTING the outboard, seek out and repair the cause.
• Perform Fuel System Pressure Test on p. 165. Seek out possible external fuel leakage that could allow fuel and/or vapor to enter the combustion cycle through the air intake (air silencer).
• Seek out possible internal fuel leakage from a leaking injector and/or vapor separator vent hose.
