Fail-Safe Function Table - Yamaha WaveRunner FX SHO Service Manual

GEN
INFO

Fail-safe function table

Symptom
Incorrect pickup coil
signal malfunction
Incorrect cam posi-
tion sensor signal
Incorrect engine tem-
perature sensor sig-
nal
Incorrect intake air
temperature sensor
signal
Incorrect intake air
pressure sensor sig-
nal
Incorrect battery volt-
age
Incorrect slant detec-
tion switch signal
Incorrect OTS steer-
ing sensor signal
Incorrect no wake
mode switch signal
Incorrect reverse
sensor signal
Incorrect knock sen-
sor signal
Technical tips
Ignition control
None
Sensor malfunction
occurs after cylinder
identification: normal
control.
Sensor malfunction
occurs before cylinder
identification: group igni-
tion.
If a signal is received
from the cam position
sensor: normal ignition
is resumed.
Normal control using
pseudo engine tempera-
ture.
Normal control using
pseudo intake air tem-
perature.
Normal control using
pseudo intake air pres-
sure.
Normal control
Normal control
Normal control
Normal control
Normal control
Normal control
Fuel injection control
None
Sensor malfunction
occurs after cylinder
identification: normal
injection.
Sensor malfunction
occurs before cylin-
der identification:
group injection.
If a signal is received
from the cam position
sensor: normal injec-
tion is resumed.
Normal control using
pseudo engine tem-
perature.
Normal control using
pseudo intake air
temperature.
Normal control using
pseudo intake air
pressure.
Normal control
Normal control
Normal control
Normal control
Normal control
Normal control
1-51
Function
None
When Fail-safe is active,
engine speed is
restricted to below about
3,800 r/min.
Fail-safe is not deacti-
vated until the engine is
turned off.
Pseudo engine temper-
ature is calculated by
the intake air tempera-
ture.
Pseudo intake air tem-
perature is 40 °C (104
°F).
Pseudo intake air pres-
sure is set according to
engine speed and the
throttle opening angle.
Cancel cruise assist
mode control, OTS con-
trol, no wake mode con-
trol and high intake air
pressure warning con-
trol.
Cruise assist mode and
no wake mode are can-
celed.
Slant detection switch
control is canceled.
OTS control is canceled.
No wake mode control is
canceled.
Reverse traction control
and no wake mode con-
trol are canceled.
none
E