Oil Pressure Sensor; Electrical Circuit (55 V) - BRP Evinrude E-Tec Series Service Manual

OILING SYSTEM
COMPONENTS

Oil Pressure Sensor

The oil pressure sensor reacts to changes in oil
manifold pressure. The EMM supplies and moni-
tors electrical current to the sensor.
1
1. Oil pressure sensor
The sensor provides an output voltage to the
EMM based on oil manifold pressures.
Oil Pressure Sensor Information:
5 VDC Input on RED wire
0.5 - 4.5 V Output on TAN / WHITE wire
Ground on BLACK wire
The EMM monitors the oil pressure sensor's elec-
trical circuit. If circuit voltage is beyond the speci-
fied range (< 0.12 V, > 4.88 V), the EMM:
Stores a service code 71
Initiates EMM SENSOR FAULT (LED 3)
If oil pressure is below expected range (< 0.5 V),
the EMM:
Stores a service code 72
Initiates EMM SENSOR FAULT (LED 3)
If oil pressure is above expected range (> 4.5 V),
the EMM:
Stores a service code 73
Initiates EMM SENSOR FAULT (LED 3)
Refer to Oil Pressure Sensor on p. 99.
202

Electrical Circuit (55 V)

The oil injector is powered by the 55 V electrical
circuit. The EMM controls injection pump opera-
tion by opening and closing the circuit's ground.
Circuit components:
Oil injection pump winding
•
Main wire harness and connections
•
EMM, oil injection pump control function
•
System voltage (55 V): stator, rectifier/regulator
•
(EMM)
Ground circuits, EMM and oil injection pump
•
Refer to Oiling System Electrical Diagram on
p. 204 and OILING SYSTEM TESTS on p. 218.
The EMM monitors the oil injection pump electri-
005371
cal circuit. If circuit voltage is beyond the specified
range (open circuit), the EMM:
Activates S.A.F.E.
Initiates and stores a service code 34
Initiates
EMM NO OIL/OVERHEAT FAULT (LED 4)
Initiates the SystemCheck or I-Command "NO
OIL" warning
Stored Faults Review Screen
005143