BRP E250DHLSCS, Service Manual

Page: 113 / 396

111
SYSTEM ANALYSIS
DIAGNOSTIC PROCEDURES
6
Troubleshooting
Outboard will not crank, starter does not
operate:
•
Check condition of battery and cables (main
battery switch and cables). Make sure battery
cables are not reversed.
•
Confirm that switched B+ is present at “A” termi-
nal (purple wire) of starter solenoid with key
switch in the ON position.
•
Refer to
ELECTRIC START TESTS
on p. 137.
Repair starter or start circuit as needed.
Outboard cranks, will not start:
•
Check emergency stop switch and lanyard
•
Check powerhead mounted neutral switch
•
Check the
EMM
LED Indicators for system sta-
tus information. Refer to
EMM LED INDICA-
TORS
on p. 113.
•
Use the
Evinrude Diagnostics
software
Stored
Faults
screen to check for current service
codes. If there are multiple stored sensor
codes, inspect all 5 V sensor circuits for broken
or grounded wiring.
•
Perform a Static Ignition test using
Evinrude
Diagnostics
software and an inductive timing
light. Refer to
Static Ignition Test
on p. 117.
•
If ignition test indicates steady spark, refer to
FUEL DELIVERY TESTS
on p. 120.
Outboard runs, low on power, misfires:
•
Check the
EMM
LED Indicators for system sta-
tus information. Refer to
EMM LED INDICA-
TORS
on p. 113.
•
Use the
Evinrude Diagnostics
software
Monitor
screen to check system (55 V), ignition (200 V),
and TPS voltages. System and ignition voltage
should be steady, and TPS voltage should be
between 0.2 and 4.85 V.
•
Use the diagnostics software
Dynamic Tests
to
isolate a faulty cylinder. See
DYNAMIC TESTS
on p. 112.
•
Use an inductive timing light to check ignition
and fuel injector circuits. Refer to
Running Igni-
tion Tests
on p. 118 and
Running Fuel Sys-
tem Tests
on p. 121.
•
Use the diagnostics software
Fuel Control
Adjustment
test to help identify a cylinder that
may be too rich or too lean. Refer to
Fuel Con-
trol Adjustment
on p. 112.
•
Use an inductive amp meter to monitor injector
circuit current. Compare readings of all circuits
to identify possible failure.
•
Check fuel quality and that fuel is present at
injectors.
•
Use the diagnostics software
Logging
function
to record engine data as a problem is occurring.
IMPORTANT:
Use a digital multimeter to check
voltage on external circuits only when necessary.
All
EMM
output currents are DC current.
Logging Screen
006549