BRP E 250 L HO AG B, Service Manual

Page: 200 / 460

Oiling System
Oiling System Tests
200
Use the Cylinder Pump function of Evinrude Diag-
nostic software Tests screen to activate the oil
pump.
•
Voltage at pin B should vary (drop), as the oil
pump cycles.
Check the control signal while the Oil Injector test
is running. Set the digital multimeter to the Hertz
(Hz) scale.
•
Meter should read 150 to 170 Hz.
Results:
•
If voltage and control signal readings (Hz) at
pin B are within range, the
EMM and wiring are
not at fault.
•
If voltage at pin B is not within range, check volt-
age at pin A (white/red wire) of the oil pump
electrical connector.
Connect positive meter lead to pin A (white/red
wire) of oil pump electrical connector. Observe
voltage at pin A.
•
The voltage at pin A should be approximately
30 V.
Start the engine. Observe voltage at pin A.
•
The voltage at pin A should be approximately
55 V.
Results:
•
If voltage at pin A is within range, refer to Oil
Pump Resistance Test on p. 201.
•
No voltage reading should result in Code 36;
Cylinder Oil Pump Open Circuit. Refer to
Sys-
tem Voltage Test on p. 122.
Oil Pump Circuit Tests
The oil pump circuit test can be performed on
either the crankcase or cylinder oil pump.
IMPORTANT:
The complete oil pump electrical
circuit includes EMM alternator output, the engine
wire harness, the pump winding and connectors,
and the oil injector control circuit of the
EMM .
Check continuity of all wiring and connections.
Disconnect the battery cables at the battery. Dis-
connect the electrical connector from the oil
pump.
Use a digital multimeter with appropriate test
probe leads to measure the resistance of the oil
pump 55V circuit.
Connect the positive meter lead to the engine har-
ness connector wire listed in the table. Connect
Tests Screen
1. Cylinder Pump button
009225
Acceptable Cylinder Oil Pump
Test Readings
Key switch ON approximately 30 VDC
Control signal 150 to 170 Hz
Engine running approximately 55 VDC
1
NOTICE
Use appropriate test leads or adapters such
as Test Probe Kit, P/N 342677, when perform-
ing electrical tests.
NEVER pierce the insulation of the engine
wiring, or use any piercing-style test probe.
Piercing insulation damages the wire and can
cause other unintended electrical problems.