Yamaha 2009 XP500Y TMAX Service Manual page 338

Fault code No. 12
Diagnostic code No.
Order Item/components and probable
cause
1 Installed condition of crankshaft posi-
tion sensor.
2 Connections
• Crankshaft position sensor coupler
• Wire harness ECU (engine control
unit) coupler
3 Open or short circuit in wire harness.
4 Defective crankshaft position sensor.
Symptom No normal signals are received from the crankshaft posi-
tion sensor.
— —
Check or maintenance job
Check the installed area for
looseness or pinching.
• Check the coupler for any pins
• Check the locking condition of
• If there is a malfunction, repair it
• Repair or replace if there is an
• Between the crankshaft position
• Replace if defective.
8-41
FUEL INJECTION SYSTEM
that may have pulled out.
the coupler.
and connect the coupler se-
curely.
open or short circuit.
sensor coupler and ECU (en-
gine control unit) coupler.
(black/yellow–black/yellow)
(black/blue–black/blue)
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-72.
Reinstatement
method
Cranking the
engine.