4-9
Outboard motor troubleshooting
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A
*1. When displayed on the YDIS screen, “*****” or “Immobilizer” represents Y-COP.
37
Intake air passage
(Air leakage)
“Check Engine” is displayed.
Engine operates normally
except at idle.
Check the O-rings and gaskets of the
intake manifold.
Check the intake manifold for cracks.
Check the vacuum hose.
Check the opening condition of TPS
and the ISC valve using the YDIS.
39
Oil pressure sensor
(Out of specification)
“Check Engine” is displayed.
Higher idle speed
Check the oil pressure using the
YDIS.
Measure the oil pressure sensor input
voltage.
Measure the oil pressure sensor out-
put voltage.
Check for wiring continuity between
the oil pressure sensor and the
engine ECM.
45
Shift cut-off switch
(Irregular signal)
“Check Engine” is displayed.
Higher idle speed
Measure the shift cut-off switch input
voltage.
Measure the shift cut-off switch resis-
tance.
Check for wiring continuity between
the shift cut-off switch and the engine
ECM.
46
Thermoswitch
(Irregular signal)
“Check Engine” is displayed.
Higher idle speed
Measure the thermoswitch input volt-
age.
Check the thermoswitch for continu-
ity.
Check for wiring continuity between
the thermoswitch and the engine
ECM.
86
Immobilizer *1
(Communication
error)
“Check Engine” is displayed.
Declining maximum engine
speed
Check that Y-COP is properly con-
nected.
Measure the Y-COP input voltage.
Check the Y-COP circuit.
Trouble
code
Item
(Condition)
Symptom
Checking steps
See
page
Summary of Contents for F150A
Page 1: ...SERVICE MANUAL 63P 28197 3P 12 F150A FL150A F150B FL150B ...
Page 4: ......
Page 48: ...2 3 Electronic control system Engine ECM component 2 3 4 6 5 1 8 7 10 9 11 12 14 15 16 13 17 ...
Page 110: ...3 41 Propeller selection MEMO ...
Page 129: ...4 18 Outboard motor troubleshooting MEMO ...
Page 175: ...5 44 PTT system 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 247: ...7 22 Starter motor Terminal nut 3 9 N m 0 9 kgf m 6 6 ft lb ...
Page 385: ...8 78 Shimming counter rotation model 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 449: ...9 62 PTT gear pump 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 474: ...i 8 Index 0 1 2 3 5 6 7 8 9 10 10 A MEMO ...
Page 475: ......
Page 476: ...Oct 2011 2 ABE E ...