Troubleshooting Details - Yamaha Vmax VMX17C 2009 Service Manual

EAS27461

TROUBLESHOOTING DETAILS

This section describes the measures per fault code number displayed on the meter. 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 has been completed, reset the meter display ac-
cording to the reinstatement method.
Fault code No.:
Code number displayed on the meter when the engine failed to work normally.
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to "DIAGNOSTIC
MODE" on page 8-37.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Checking method
Probable cause of malfunction
1 Installed condition of cylinder identifica-
tion sensor.
2 Connections
• Cylinder identification sensor coupler
• Wire harness ECU coupler
3 Open or short circuit in wire harness.
4 Defective cylinder identification sensor.
Reinstatement method
Fault code No.
Item
Fail-safe system
11
Cylinder identification sensor: no normal signals are received
from the cylinder identification sensor.
Unable to start engine
Able to drive vehicle
—
—
—
• Check for looseness or pinching.
• Check the coupler for any pins that may be
pulled out.
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect
the coupler securely.
• Repair or replace if there is an open or short
circuit.
• Between cylinder identification sensor coupler
and ECU coupler.
(blue–blue)
(white/black–white/black)
(black/blue–black/blue)
• Replace if defective.
Refer to "CHECKING THE CYLINDER IDEN-
TIFICATION SENSOR" on page 8-139.
Starting the engine and operating it at idle.
12
Crankshaft position sensor: no normal signals are received
from the crankshaft position sensor.
Unable to start engine
Unable to drive vehicle
8-43
FUEL INJECTION SYSTEM
Check or maintenance job