4-8
Outboard motor troubleshooting
Trouble code and checking step
—: Not applicable
Trouble
code
Item
(Condition)
Symptom
Checking steps
See
page
13
Pulser coil
(Irregular signal)
“Check Engine” is displayed.
Engine stall
Measure the pulser coil output peak
voltage.
Measure the pulser coil resistance.
Check for wiring continuity between
the pulser coil and the engine ECM.
15
Engine temperature
sensor
(Out of specification)
“Check Engine” is displayed.
Higher idle speed
Degraded acceleration per-
formance.
Declining maximum engine
speed.
Overheat
Measure the engine temperature sen-
sor input voltage.
Measure the engine temperature sen-
sor resistance.
Check for wiring continuity between
the engine temperature sensor and
engine ECM.
18
TPS
(Out of specification)
“Check Engine” is displayed.
Higher idle speed
Degraded acceleration per-
formance
Measure the TPS output voltage and
opening angle using the YDIS.
Measure the TPS input voltage.
Check for wiring continuity between
the TPS and the engine ECM.
Adjust the TPS.
19
Battery voltage
(Below specified volt-
age)
Battery voltage and battery
alert are displayed.
Engine does not restart.
(Depends on battery condi-
tion)
Engine operates normally.
Check the lighting coil output peak
voltage.
Measure the lighting coil resistance.
Measure the Rectifier Regulator out-
put voltage.
Check the Rectifier Regulator for con-
tinuity.
23
Air temperature sen-
sor (Out of specifica-
tion)
“Check Engine” is displayed.
Higher idle speed
Check the air temperature using the
YDIS.
Measure the air temperature sensor
input voltage.
Measure the air temperature sensor
resistance.
Check for wiring continuity between
the air temperature sensor and
engine ECM.
28
Shift position switch
(Irregular signal)
Engine operates normally.
Check the gear shift operation.
Measure the shift position switch
input voltage.
Check the shift position switch for
continuity.
Check for wiring continuity between
the shift position switch and the
engine ECM.
29
Air pressure sensor
(Out of specification)
“Check Engine” is displayed.
Higher idle speed
Measure the air pressure sensor
input voltage.
Measure the air pressure sensor out-
put voltage.
Check for wiring continuity between
the air pressure sensor and the
engine ECM.
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 ...