Yamaha MBK XMAX 2014, Руководство по обслуживанию

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FUEL INJECTION SYSTEM
8-46
5 Defective crankshaft posi-
tion sensor. Check the crankshaft posi-
tion sensor.
Refer to “CHECKING THE
CRANKSHAFT POSITION
SENSOR” on page 8-143.
Replace if defective. Crank the engine.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 6.
6 Malfunction in ECU. Replace the ECU.
Fault code No. 13
Item Intake air pressure sensor: open or short circuit detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. D03
FI diagnostic tool display Displays the intake air pressure.
Procedure
Operate the throttle while pulling the brake lever and pushing the
start switch “
”. (If the display value changes, the performance is
OK.)
Item
Probable cause of mal-
function and check
Maintenance job
Confirmation of service
completion
1 Connection of intake air
pressure sensor 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.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 2.
2 Connection of wire harness
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.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 3.
3 Wire harness continuity. Open or short circuit
→
Re-
place the wire harness.
Between intake air pressure
sensor coupler and ECU
coupler.
pink/white–pink/white
blue–blue
black/blue–black/blue
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 4.
Fault code No. 12
Item
Crankshaft position sensor: no normal signals are received
from the crankshaft position sensor.