Yamaha RS Venture RST90GTY 2009 Mode D'emploi page 144

Fault code No. 42
Diagnostic code No. d:07 (speed sensor)
Order Item/components and probable cause
1 Connections
• Speed sensor coupler
• Wire harness ECU coupler
2 Open or short circuit in wire harness.
3 Defective speed sensor.
4 Gear for detecting snowmobile speed
has broken.
FUEL INJECTION SYSTEM
Symptom No normal signals are received from the speed sensor.
Check or maintenance job
Check the couplers for any pins that may have
pulled out.
Check the locking condition of the couplers.
If there is a malfunction, repair it and connect the
coupler securely.
Repair or replace if there is an open or short cir-
cuit.
Between the speed sensor coupler and ECU cou-
pler.
Blue – Blue
White – White
Black/Blue – Black/Blue
Execute the diagnostic mode (code No. d:07).
Replace if defective.
Refer to "SIGNAL SYSTEM" in CHAPTER 8.
Replace if defective.
Refer to "FRONT AXLE AND TRACK" in CHAP-
TER 4.
66
FI
Reinstatement
method
Starting the
engine, and
inputting the
snowmobile
speed signals
by operating the
snowmobile at a
low speed of 20
to 30 km/h.