Yamaha MBK X-MAX 300 2017 Service Manual page 358

Fault code No.
Item
3 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
4 Wire harness continuity.
5 Malfunction in ECU.
6 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0335
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of crankshaft posi-
tion sensor coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
P0201
Fuel injector: no normal signals are received from the fuel injector
circuit.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
the wire harness.
Between fuel injector coupler
and ECU coupler.
orange/black–orange/black
Between fuel injector coupler
and start/engine stop switch.
red/white–red/black
Between start/engine stop
switch and main fuse.
brown/red–brown/red
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-128.
Start the engine and let it idle for
approximately 5 seconds.
Confirm that the fault code has
a condition of "Recover" using
the malfunction mode of the
Yamaha diagnostic tool, and
then delete the fault code.
P0335
Crankshaft position sensor: no normal signals are received from the
crankshaft position sensor.
Unable to start engine
Unable to drive vehicle
—
—
—
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-53
FUEL INJECTION SYSTEM
Execute the diagnostic mode.
(Code No. 36)
Operating sound → Go to item
6.
No operating sound → Go to
item 4.
Execute the diagnostic mode.
(Code No. 36)
Operating sound → Go to item
6.
No operating sound → Go to
item 5.
Confirmation of service com-
Crank the engine, and then
check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 2.
pletion