Yamaha YZFR6X(C) 2008 Service Manual page 373

Fault code No. 12
Diagnostic code No.
Item/components and probable
Order
cause
1 Installed condition of crankshaft posi-
tion sensor.
2 Connections
• Crankshaft position sensor coupler
• Main wire harness ECU coupler
3 Open or short circuit in wire harness.
4 Defective crankshaft position sensor.
No normal signals are received from the crankshaft posi-
Symptom
tion sensor.
— —
Check or maintenance job
Check for looseness or pinching. Cranking the
• Check the couplers for any pins
• Check the locking condition of
• If there is a malfunction, repair
• Repair or replace if there is an
• Between the crankshaft posi-
• Replace if defective.
8-50
FUEL INJECTION SYSTEM
that may be pulled out.
the couplers.
it and connect the coupler
securely.
open or short circuit.
tion sensor coupler and ECU
coupler.
(gray–gray)
(black/blue–black/blue)
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-93.
Reinstatement
method
engine.