Start Circuit Operation - BRP Evinrude E-TEC G2 Service Manual

Electrical and Ignition
Electric Start Circuit

Start Circuit Operation

The starter must engage and turn the flywheel.
The outboard must crank a minimum of 100 RPM
to start. Normal cranking speed is approximately
175 RPM.
Starter performance depends on the following:
•
Proper battery and cable capacity.
•
Clean, tight cable connections.
•
Solenoid activation through the start switch, and
EMM.
Refer to the Evinrude E-TEC G2 Installation and
Predelivery Guide for battery, terminal, and cable
requirements.
Wiring
The positive (B+) battery cable connects to the
positive terminal stud in the engine rigging center.
The positive terminal stud:
•
Connects a cable to the large terminal of the
starter solenoid.
•
Provides 12 V to the engine harness (red wire)
and the fuse panel terminals 1C and 1D.
The negative (B-) battery cable connects to the
negative terminal stud in the engine rigging cen-
ter. A cable connects this terminal to a ground ter-
minal on the starter. The main harness ground is
provided through the starter mounting screws.
Engine Wire Harness
Contains the following circuits:
Red/purple wires:
•
Fuse Panel terminal 2C, provides fused 12 V to
the START RELAY coil (terminal 8B) and to the
EMM J1-B connector terminal 3.
•
EMM J1-A connector terminal 23, provides 12 V
to HELM fuse (terminal 1B). This circuit is
always "ON".
Red/yellow wires:
•
Fuse Panel terminal 2B, provides 12 V to the
remote control.
•
Fuse Panel terminal 2D, provides high current
12 V to the START RELAY.
Yellow/red wires:
•
EMM J1-B connector terminal 11, Provides
NEUTRAL signal from the shift actuator to the
EMM.
130
•
EMM J1-B connector terminal 14, Provides the
start signal from the EMM to the start relay.
Red/tan wire:
•
Provides the start signal voltage from the start
relay fuse panel terminal 8A to the starter sole-
noid.
Remote Control CANbus Harness
Contains the following circuits:
Red/yellow wire:
•
Provides 12 V from the HELM fuse (terminal
2B) to the remote control.
Black wire:
•
Provides HELM ground.
Black/yellow wire:
•
Engine STOP circuit.
Blue and white wires:
•
Provides CANbus data signal (low and high)
to/from the EMM.
Black/white wire:
•
Turns ON the EMM.
Key Switch ON Position
When the key switch is turned to the ON position
the remote control black/white wire provides 12 V
to the purple/black wire (EMM J1-B connector
terminal 21) and turns ON the EMM.
Start Command
1. Key Switch Start: Grounds terminal S of the
key switch, which signals remote control to trans-
mit the START signal to the engine EMM.
2. Push Button Start Switches: Sends a digital
signal to the remote control to transmit the START
signal to the engine EMM.
Then:
•
If the remote control is in the NEUTRAL posi-
tion, the START command is transmitted over
the remote control and NMEA 2000 networks to
the EMM.
•
The EMM checks for NEUTRAL signal from the
shift actuator. If the EMM detects the NEUTRAL
signal, it grounds the yellow/red wire (EMM J1-
B connector, terminal 14). This energizes the
START RELAY, providing 12 V to the starter
solenoid.