78
SYSTEM ANALYSIS
DIAGNOSTIC PROCEDURES
DIAGNOSTIC
PROCEDURES
Visual Inspections
Inspect wiring and electrical connections. Disas-
semble and clean all corroded connections.
Replace damaged wiring, connectors, or termi-
nals. Repair any shorted electrical circuits.
• Refer to ELECTRICAL HARNESS CONNEC-
TIONS on p. 96.
• Refer to WIRING DIAGRAM at the back of this
manual.
• Refer to CONNECTOR SERVICING on p. 120.
Make sure all ground connections are clean and
tight. Refer to GROUND CIRCUITS on p. 98.
Inspect spark plugs for wear, oil fowling, or dam-
age. A rich or lean running condition or evidence
of internal engine damage could be identified by
the appearance of the spark plugs.
Check the fuse and the emergency stop switch
lanyard.
Operational Inspections
Run the outboard to confirm actual symptoms
before performing any unnecessary 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. Refer to EMM LED INDICA-
TORS on p. 81.
• Check the Evinrude Diagnostics software Active
Faults and Occurred Faults screens for current
service codes. Correct any problems and clear
the codes before further troubleshooting. Refer
to Occurred Service Codes (Faults) on p. 69.
Check the diagnostics software Profiles,
Occurred, and Historical Faults screens for evi-
dence of abnormal operation.
1. Main engine harness ground
2. Ground stud (battery)
002292
Occurred Faults Review Screen 008584
Profiles Screen 008587
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