SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 362 / 377

TRBL
SHTG
Troubleshooting
9-17
6P23H11
Troubleshooting the power unit (trouble code not detected)
Troubleshooting when a trouble code is not available consists of the following 4 items.
Symptom 1: Specific trouble conditions
Symptom 2: Trouble conditions of an area or individual part
Cause 1: The content considered as the trouble factors of symptom 2.
Cause 2: The content considered as the trouble causes of cause 1 (described if necessary).
Symptom 1: Engine does not crank
Symptom 2 Cause 1 Cause 2 Checking step
Refer
to
page
Starter motor
does not
operate Discharged battery — Check the battery. 3-15
Loose connection of
battery terminal
—
Check the battery ter-
minal. 3-15
Short, open, or loose
connection in starter
motor circuit
—
Check the wiring har-
ness continuity. *1
Starter relay malfunc-
tion
—
Check the starter relay. 8-32
Blown fuse — Check the fuse. 8-5
Starter motor malfunc-
tion
—
Disassemble and check
the starter motor. 8-34
Engine start switch
malfunction
—
Check the engine start
switch. 8-20
Gear shift not in the
neutral position
—
Shift the remote control
lever to the neutral
position. 1-42
Starter motor
operates, but
the engine does
not crank Stuck piston
—
Disassemble and check
the power unit. 5-1
Piston lock due to water
or oil in the combustion
chamber
Salt buildup on the
drive shaft and bushing
—
Disassemble and check
the upper case. 7-5
Starter motor malfunc-
tion
—
Disassemble and check
the starter motor. 8-34
*1: See the wiring diagram.