Yamaha MBK MW125 2014, Руководство по обслуживанию

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FUEL INJECTION SYSTEM
8-30
TIP
When the Yamaha diagnostic tool is connected to the vehicle, the operation of the multi-function meter
and indicators will be different from the normal operation.
EAS30508
TROUBLESHOOTING DETAILS
This section describes the measures per fault code number displayed on the Yamaha diagnostic tool.
Check and service the items or components that are the probable cause of the malfunction following
the order given.
After the check and service of the malfunctioning part have been completed, reset the Yamaha diag-
nostic tool display according to the “Confirmation of service completion”.
Fault code No.:
Fault code number displayed on the Yamaha diagnostic tool display when the engine failed to work nor-
mally.
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to “SELF-DIAGNOS-
TIC FUNCTION AND DIAGNOSTIC CODE TABLE” on page 9-5.
Fault code No. 12
1
Fault code No. 12
Item
Crankshaft position sensor: no normal signals are received from the
crankshaft position sensor.
Fail-safe system
Unable to start engine
Unable to drive vehicle
Diagnostic code No. —
Tool display —
Procedure —
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
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). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Crank the engine.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is displayed
→
Go to item 2.