Evinrude E-Tec 40 HP, Service Manual

Page: 76 / 426

74
SYSTEM ANALYSIS
DIAGNOSTIC PROCEDURES
DIAGNOSTIC
PROCEDURES
Visual Inspections
Inspect wiring and electric al connectio ns. Disas-
semble a nd clean all corrode d co nnections.
Replace damaged wiring, con nectors, o r termi-
nals. Repair any shorted electrical circuits.
•
Refer to
ELECTRICAL HARNESS CONNEC-
TIONS
on p. 92.
•
Refer to
WIRING DIAGRAM
at the back of this
manual.
•
Refer to
CONNECTOR SERVICING
on p. 116.
Make sure all g round connections are clean and
tight. Refer to
GROUND CIRCUITS
on p. 94.
Inspect spark plugs for wea r, oil fowling, or dam-
age. A rich or lean running condition or evidence
of internal engine damage could be identified b y
the appearance of the spark plugs.
Check the fuse an d the emergency st op switch
lanyard.
Operational Inspections
Run the ou tboard to confirm actual symp toms
before perfo rming any unne cessary procedures.
Inspection should include the following:
•
Make sure the outboard can be cranked easily,
with no mechanical binding.
•
Check the
EMM
LED Indicators for system sta-
tus information. Re fer to
EMM LED INDICA-
TORS
on p. 77.
•
Check the
Evinrude Diagnostics
software
Active
Faults
and
Occurred Faults
screens for current
service codes. Correct a ny problems and clear
the codes before further troubleshooting. Refer
to
Occurred Service Codes (Faults)
on p. 65.
Check the diag nostics software
Profiles
,
Occurred
, and
Historical Faults
screens for evi-
dence of abnormal operation.
1. Main engine harness ground
2. Ground stud (battery)
002292
1
2
Occurred Faults Review Screen
008584
Profiles Screen
008587