Auxiliary Battery - Charge Wire; 55 V Alternator Circuit - BRP E250DHLSCS Service Manual

ELECTRICAL AND IGNITION
CHARGING SYSTEM TESTS
Start and run the outboard at approximately 5000
RPM. Use the variable load tester to draw the bat-
tery down at a rate equivalent to the stator's full
output.
The ammeter should indicate nearly full output,
•
Approximately 50 A (or 25 A for each output) @
5000 RPM.
Decrease the battery load toward 0 A.
Ammeter should show a reduced output. As the
•
current draw decreases, the battery voltage
should stabilize at approximately 14.5 V.
If results vary, check stator BEFORE replacing
•
the EMM. See STATOR TESTS on p. 132.
Auxiliary Battery – Charge Wire
The auxiliary battery charge feature requires aux-
iliary battery charge kit, P/N 5006253 (or equiva-
lent).
Disconnect all accessories from
IMPORTANT:
the auxiliary battery. Auxiliary battery must read a
minimum of 8.5 V at the beginning of these tests
and remain connected to the outboard during the
tests.
Check battery ground cable for continuity.
With the key switch OFF, check battery voltage at
auxiliary battery, then check voltage at auxiliary
battery connection. If the readings are not the
same, replace wire to auxiliary battery. The auxil-
iary battery wire must be at least 10-gauge and it
must be protected by a 50 A fuse or circuit
breaker at the battery.
1. Auxiliary battery charge wire connection
134
With outboard running at 1000 RPM, voltage must
read higher than with key OFF and increase
steadily to approximately 14.5 V as the outboard
RPM increases.
If there is no increase, turn the key switch to OFF
and test red/black wire between the EMM and
auxiliary battery connection.
Continuity indicates faulty output from EMM.
•
Check 12 V alternator output before replacing
EMM for faulty auxiliary battery, charge isolator
circuit.
No continuity indicates faulty wiring.
•

55 V Alternator Circuit

Check battery ground cable for continuity.
With the key switch ON, check battery voltage at
battery (12 V), then check voltage on white/red
wires at J2 connector of EMM. Use Electrical Test
Probe Kit, P/N 342677 and a multimeter set to
read 55 VDC. Voltage at EMM connector should
be approximately 30 V.
1. J2 connector of EMM
With outboard running at 1000 RPM, voltage on
white/red wires should increase to 55 V.
Voltage readings at a specific speed (RPM)
1
should be steady.
If there is any other reading, refer to STATOR
TESTS on p. 132. Inspect the stator wiring and
connections. Inspect the capacitor wiring, connec-
tions, and capacitor. Repair the wiring or replace a
faulty capacitor, stator, or EMM.
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