Yamaha YZF-R6(V) 2006 Service Manual page 387

Fault code No. 42
Diagnostic code No.
Order Item/components and probable
cause
A-1 Installed state of speed sensor.
A-2 Connections
• Speed sensor coupler
• Main wire harness ECU coupler
A-3 Open or short circuit in lead.
A-4 Defective speed sensor.
Symptom A. No normal signals are received from the speed sensor.
B. Open circuit is detected in the neutral switch.
A 07 Speed sensor
B 21 Neutral switch
FUEL INJECTION SYSTEM
Check or maintenance job
Check for looseness or pinching. Starting the en-
• Check the couplers for any pins
that may be pulled out.
• Check the locking condition of
the couplers.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Repair or replace if there is an
open or short circuit.
• Between speed sensor coupler
and ECU coupler.
(blue–blue)
(white/yellow–white/yellow)
(black/blue–black/blue)
• Execute the diagnostic mode.
(Code No. 07)
• Replace if defective.
Refer to "CHECKING THE
SPEED SENSOR" on page
8-106.
8-64
Reinstatement
method
gine, and acti-
vating the
speed sensor
by operating
the vehicle.