INTERNAL EMM FUNCTIONS
ROM Verification
The EMM performs a self-test of programming every time it is turned ON. Service code 15 indicates a programming (software) issue. Reprogram the EMM with the correct software program to correct the problem.
Idle Controller
The idle controller reacts to engine operating conditions. Fuel and ignition timings are altered to maintain a specific RPM when engine is cold or warm. The controller is inactive when TPS is advanced from idle position.
RPM Limiter
This feature of EMM programming prevents engine damage due to excessive RPM. At 62 50 RPM, fuel and ignition to the cylinders is shut off. Normal operation resumes when engine RPM returns to the specified range.
Neutral RPM Limiter
This feature prevents engine damage due to excessive RPM if accelerated in NEUTRAL. Neutral engine speed is limited to 1100 RPM.
Engine Monitor and Warning Systems
Refer to ENGINE MONITOR SYSTEM on p. 56.
Refer to S.A.F.E. WARNING SYSTEM on p. 57.
Refer to SHUTDOWN MODE on p. 58.
Fault Code Creation and Storage
Refer to t he EMM Service Code Chart at the back of this manual for a complete list of all engine fault codes.
ENGINE MONITOR SYSTEM
An optional engine monitoring system warns the operator of conditions that could damage the out board. The system includes a LOW OIL switch on the oil tank, a warning horn, a dash-mounted display, and related wiring.
The outboard’s EMM sends information about monitored functions to:
- A SystemCheck gauge
- EMM LED indicators
IMPORTANT: Evinrude E-TEC 15–30 HP models provide LOW OIL warning ONLY.
Typical SystemCheck gauges
The EMM activates the warning horn and gauge displays as follows:
- LOW OIL means that oil in the tank is at reserve level (about 1/4 full).
For all other warnings, refer to EMM LED INDICATORS on p. 71.
Refer to the EMM Service Code Chart at the back of this manual for a complete list of all fault codes.
