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Electronic control system
7 Electrical management box
Contains various relays and fuses, and controls the power
supply for the electrical components of the outboard motor.
8
Cam position sensor (PORT
EX)
Determines the stroke of each cylinder according to the sig-
nals from both the crankshaft position sensor and the cam po-
sition sensor (PORT EX).
9
Cam position sensor (PORT
IN)
Detects the advance angle on the intake camshaft.
10 Engine ECM
Determines the engine operating conditions according to the
input signals from the sensors and switches which are in-
stalled at various locations on the engine, and sends output
signals to operate the actuators to perform the various control
functions.
11 Engine temperature sensor Detects the engine temperature.
12 Injector driver
Controls the operation of the direct injection pumps and fuel
injectors.
13 OCV
Advances or retards the intake camshaft timing by switching
the oil passages through which the engine oil is sent into the
advance chamber or the retard chamber in the rotor vane
housing.
14
Fuel pressure sensor
(high-pressure fuel pump)
Detects the fuel pressure between the vapor separator and
the direct injection pump.
15
SPS 1
SPS 2
Detects the shift position. SPS 1 is the main sensor and SPS 2
is the sub sensor. SPS 1 and SPS 2 mutually monitor each
other for malfunctions.
16 Shift actuator
Drives the motor according to the engine ECM command for
engaging or disengaging the gearshift.
17 Ignition coil Produces high voltage to ignite a spark plug.
18
Fuel pressure sensor (direct
injection pump)
Detects the fuel pressure at the fuel rail.
19 Direct injection pump Pressurize the fuel and sends the fuel to the fuel rail.
20 Water pressure sensor Detects the cooling water pressure.
21 Fuel injector Injects fuel.
22 Knock sensor Detects engine knocking.
23
Cam position sensor (STBD
IN)
Detects the advance angle on the intake camshaft.
24 Crankshaft position sensor
Detects the engine speed.
Detects the crankshaft angle and piston positions.
25 Oil pressure sensor Detects the oil pressure.
Part name Function
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