Yamaha FJR13AEV(C) Service Manual page 566

Fault code No. 42
Diagnostic code No.
Order Item/components and probable
cause
B-1 Connections
• Gear position switch coupler
(FJR13A)
• Neutral switch coupler (FJR13AE)
• Wire harness ECU coupler
• Front cowling wire harness coupler
B-2 Open or short circuit in wire harness
and/or front cowling wire harness.
B-3 Faulty shift drum (neutral detection ar-
ea)
B-4 Defective gear position switch (neutral
circuit) (FJR13A)
Defective neutral switch (FJR13AE)
Symptom A. No normal signals are received from the rear wheel
sensor.
B. Open or short circuit is detected in the neutral circuit of
the gear position switch. (FJR13A)
Open or short circuit is detected in the neutral switch.
(FJR13AE)
A 07 Rear wheel sensor
B 21 Gear position switch (neutral circuit) (FJR13A)
Neutral switch (FJR13AE)
Check or maintenance job
• 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 gear position switch
• Between relay unit coupler and
• Between neutral switch coupler
• Between relay unit coupler and
• Between neutral switch coupler
• Replace if defective.
• Execute the diagnostic mode.
• Replace if defective.
8-95
FUEL INJECTION SYSTEM
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
open or short circuit.
coupler and relay unit coupler.
(sky blue–sky blue) (FJR13A)
ECU coupler.
(black/yellow–black/yellow)
(FJR13A)
and relay unit coupler.
(sky blue–sky blue) (FJR13AE)
ECU coupler.
(black/red–black/red)
(FJR13AE)
and ECU coupler.
(sky blue–sky blue) (FJR13AE)
Refer to "TRANSMISSION" on
page 5-116.
(Code No.21)
Refer to "CHECKING THE
SWITCHES" on page 8-211.
Reinstatement
method
Starting the en-
gine, and input-
ting the vehicle
speed signals
by operating
the vehicle at a
20 to 30 km/h.