Yamaha RAPTOR YFM700RF 2015, Руководство по обслуживанию

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FUEL INJECTION SYSTEM
8-48
Actuation
Actuates injector five times at one-second intervals.
The “CHECK” indicator and “
” on the Yamaha diagnostic tool
screen come on each time the fuel injector is actuated.
Procedure
Check that power is supplied to the injector.
Check the injector operation by listening for the operating sound or
by confirming the operation visually.
Item
Probable cause of mal-
function and check
Maintenance job
Confirmation of service
completion
1 Connection of injector cou-
pler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins). Improperly connected
→
Connect the coupler secure-
ly or replace the wire har-
ness.
Execute the diagnostic
mode. (Code No. 36)
Operating sound
→
Go to
item 6.
No operating sound
→
Go to
item 2.
2 Defective injector. Measure the injector resis-
tance.
Replace if out of specifica-
tion. Execute the diagnostic
mode. (Code No. 36)
Operating sound
→
Go to
item 6.
No operating sound
→
Go to
item 3.
3 Connection of ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins). Improperly connected
→
Connect the coupler secure-
ly or replace the wire har-
ness.
Execute the diagnostic
mode. (Code No. 36)
Operating sound
→
Go to
item 6.
No operating sound
→
Go to
item 4.
4 Wire harness continuity. Open or short circuit
→
Re-
place the wire harness.
Between injector coupler and
fuel pump relay coupler.
red/blue–red/blue
Between injector coupler and
ECU coupler.
red/black–red/black
Execute the diagnostic
mode. (Code No. 36)
Operating sound
→
Go to
item 6.
No operating sound
→
Go to
item 5.
5 Malfunction in ECU. Replace the ECU.
6 Delete the fault code. Start the engine and let it idle
for approximately 5 seconds.
Check that the fault code
number is not displayed.
Fault code No. 41
Item Lean angle sensor: open or short circuit detected.
Fail-safe system
Unable to start engine
Unable to drive vehicle
Diagnostic code No. 08
Fault code No. 39
Item Injector: open or short circuit detected.