Yamaha MTN1000 2016, Руководство по обслуживанию

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FUEL INJECTION SYSTEM
8-93
Fault code No. P0657
Fault code No. P0657
Item
Fuel system voltage: incorrect voltage supplied to the fuel injector
and fuel pump.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 09, 50
09
Tool display
Fuel system voltage (battery voltage)
Approximately 12.0
Procedure
Set the start/engine stop switch to “ ”, and then compare the actually
measured battery voltage with the tool display value. (If the actually mea-
sured battery voltage is low, recharge the battery.)
50
Actuation
Actuates the relay unit five times at one-second intervals.
The “check” indicator on the Yamaha diagnostic tool screen come on
each time the relay is actuated.
Procedure
Check that the relay unit is actuated five times by listening for the operat-
ing sound.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1 Connection of relay unit 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
replace the wire harness.
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 7 and finish the service.
Condition is “Detected”

Go to
item 2.
2 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).
Improperly connected

Con-
nect the coupler securely or
replace the wire harness.
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 7 and finish the service.
Condition is “Detected”

Go to
item 3.
3 Wire harness continuity. Open or short circuit

Replace
the wire harness.
Between fuse box (fuel injection
system fuse) and relay unit cou-
pler.
brown/white–brown/white
Between fuse box (ignition fuse)
and handlebar switch (right)
coupler.
red/white–red/white
Between handlebar switch
(right) coupler and relay unit
coupler.
red/white–red/white
Between relay unit coupler and
ECU coupler.
red/blue–red/blue
blue/white–blue/white
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 7 and finish the service.
Condition is “Detected”

Go to
item 4.