Yamaha YFM700RV 2009 Service Manual page 263

Fault code No. 16
Diagnostic code No. D01
Order Item/components and probable
cause
1 Installed condition of throttle posi-
tion sensor.
2 Defective throttle position sensor.
Fault code No. 21
Diagnostic code No. D06
Order Item/components and probable
cause
1 Installed condition of coolant tem-
perature sensor.
2 Connections
• Coolant temperature sensor cou-
pler
• Main wire harness ECU coupler
3 Open or short circuit in wire har-
ness.
4 Defective coolant temperature
sensor.
FUEL INJECTION SYSTEM
Symptom Stuck throttle position sensor detected.
Throttle position sensor
Symptom Coolant temperature sensor: open or short circuit
detected.
Coolant temperature sensor
Check or maintenance job
• Check the installed area for
looseness or pinching.
• Check that the throttle position
sensor is installed in the speci-
fied position.
Refer to "THROTTLE BODY".
• Execute the diagnostic monitor-
ing mode.
(Code No.D01)
• Replace if defective.
Refer to "CHECKING AND
ADJUSTING THE THROTTLE
POSITION SENSOR".
Check or maintenance job
Check the installed area for loose-
ness or pinching.
• Check the coupler for any pins
that may have pulled out.
• Check the locking condition of
the coupler.
If there is a malfunction, repair it
and connect the coupler securely.
• Repair or replace if there is an
open or short circuit.
• Between coolant temperature
sensor coupler and ECU cou-
pler.
(black/blue–black/blue)
(black/yellow–black/yellow)
• Execute the diagnostic mode.
(Code No.D06)
• Replace if defective.
Refer to "SIGNALING SYSTEM"
in chapter 8.
6 - 16
FI
Reinstatement
method
Reinstated by
starting the
engine, operat-
ing it at idle, and
then racing it.
Reinstatement
method
Turning the
main switch to
"ON".