Yamaha 2010 FX Nytro FX10X Service Manual page 664

Fault code
Item
No.
Cylinder-#3 ignition coil (faulty
ignition)
35
ISC (idle speed control) valve
37
(stuck fully open)
Speed sensor
42
Fuel system voltage (monitor volt-
43
age)
Error in writing the amount of CO
44 adjustment on EEPROM
Snowmobile system power supply
46
(monitor voltage)
ECU internal malfunction (mem-
ory check error)
50
Grip warmer
81
83 Thumb warmer (short circuit)
T.O.R.S.
84
Oil pressure switch (open circuit)
85
Communication error with the meter
Fault code
Item
No.
ECU internal malfunction (output
Er-1 signal error)
ECU internal malfunction (output
Er-2
signal error)
ECU internal malfunction (output
Er-3
signal error)
ECU internal malfunction (input
Er-4
signal error)
FUEL INJECTION SYSTEM
Symptom
Malfunction detected in the primary
lead of the cylinder-#3 ignition coil.
Engine speed is high when the engine
is idling.
No normal signals are received from
the speed sensor.
Power supply to the fuel injectors and
fuel pump is not normal.
Error is detected while reading or writ-
ing on EEPROM (CO adjustment
value).
Power supply to the ECU is not normal.
Faulty ECU memory. (When this mal-
function is detected in the ECU, the
fault code number might not appear on
the meter.)
Grip warmer: open or short circuit
detected.
Thumb warmer: short circuit detected.
Conditions requiring T.O.R.S. operation
are detected.
Oil pressure switch: open
detected.
Symptom
No signals are received from the ECU.
No signals are received from the ECU
within the specified signal time.
Data from the ECU cannot be received
correctly.
Non-registered data has been received
from the meter.
114
FI
Able/unable Able/unable
to start to drive
Able
(depending on (depending on
the number of the number of
faulty
cylinders) cylinders)
Able
Able Unable
Able
Unable Unable
depending on depending on
the conditions the conditions
Able
Unable Unable
Able
Able
Able Unable
circuit
Able
Able/unable Able/unable
to start to drive
Able or unable Able or unable
when ECU is when ECU is
defective defective
Able
Able
Able
Able
faulty
Able
Able
Able
Able
Able
Able
Able
Able
Able