BRP Evinrude E-TEC, Manual

Page: 86 / 364

System Analysis
Ignition Output Tests
86
•
Outboard cranking speed exceeds 300 RPM
and a steady CPS signal is generated.
Alternator Output/System Voltage
•
System voltage from EMM (white/red) provides
55 VDC to the high pressure fuel pump, the oil
injection pump, the fuel injectors, and the igni-
tion coils.
Capacitor
•
Connected to 55 V circuit (white/red) to stabilize
current on 55 V circuit
•
Negative terminal of capacitor must be
grounded.
Ignition Coil
•
Primary circuits are powered by system (55 V)
voltage
•
EMM provides control signal to ignition coil
•
Output from ignition coil secondary winding and
high tension spark plug wire.
Wiring Inspection
Visually inspect all wiring, connections, and
grounds.
Use a digital ohmmeter to test resistance on all
ground circuits and connections. Ohmmeter read-
ings should be approximately 0.0 W.
Check that all engine wire harness grounds have
continuity to the cylinder/crankcase.
Clean or repair all ground circuits, wiring, and con-
nections as needed.
Crankshaft Position Sensor (CPS)
Test
When the CPS is working properly, EMM LED 2
turns on while the outboard is being started.
Use the Evinrude Diagnostics software CPS Sync
and engine RPM displays to confirm a valid CPS
signal while the outboard is cranking or running.
An RPM display higher than zero indicates a CPS
signal to the
EMM .
If the Monitor screen says “Check CPS Sync,”
refer to Crankshaft Position Sensor (CPS) Test
on p. 101.
System Voltage Test
The ignition system is powered by the 55 V sys-
tem.
1. Main engine harness ground 002292
1
Engine RPM and CPS Sync displays 008566A