4-24
Outboard motor troubleshooting
Symptom 1: Engine will not start (engine cranks).
Symptom 2 Cause Checking steps
See
page
Engine ECM does not
operate
Blown fuse Check the fuse. 5-5
Main relay malfunction Check the main relay. 5-21
Short, open, or loose con-
nection in the engine ECM
circuit
Check for wire harness continuity
between the main relay and the en-
gine ECM.
A-10
Check for wire harness continuity
between the engine ECM and
ground.
5-22
Engine ECM ID and Digital
Electronic Control ECM ID
do not match.
Reset the Digital Electronic Control
system using the YDIS.
—
Engine ECM malfunction Replace the engine ECM. 7-28
Extension wire harness
malfunction
Check the extension wire harness
for continuity.
5-50
Spark plug does not
produce a spark (all
cylinders)
Short, open, or loose con-
nection in the pulser coil cir-
cuit
Check the wire harness continuity
between the pulser coil and the en-
gine ECM.
A-12
Y-COP is locked Unlock Y-COP. —
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