Yamaha RST90GTY, Руководство по обслуживанию

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61
FI
FUEL INJECTION SYSTEM
Fault code No. 16 Symptom Stuck throttle position sensor detected.
Diagnostic code No. d:01 (throttle position sensor)
Order Item/components and probable cause Check or maintenance job Reinstatement
method
1 Installed condition of throttle position
sensor. Check for looseness or pinching.
Check that it is installed in the specified position.
Refer to “THROTTLE BODY”. Starting the
engine, operat-
ing it at idle, and
then racing it.
2 Defective throttle position sensor. Execute the diagnostic mode (code No. d:01).
Replace if defective.
Refer to “THROTTLE BODY”.
Fault code No. 21 Symptom Coolant temperature sensor: open or short circuit detected.
Diagnostic code No. d:06 (coolant temperature sensor)
Order Item/components and probable cause Check or maintenance job Reinstatement
method
1 Connections
• Coolant temperature sensor coupler
• Wire harness ECU coupler
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. Setting the
engine stop
switch to “RUN”
and turning the
main switch on.
2 Open or short circuit in wire harness. Repair or replace if there is an open or short cir-
cuit.
Between the coolant temperature sensor coupler
and ECU coupler.
Black/Blue – Black/Blue
Green/White – Green/White
3 Defective coolant temperature sensor. Execute the diagnostic mode (code No. d:06).
Replace if defective.
Refer to “SIGNAL SYSTEM” in CHAPTER 8.
Fault code No. 22 Symptom Intake air temperature sensor: open or short circuit detected.
Diagnostic code No. d:05 (intake air temperature sensor)
Order Item/components and probable cause Check or maintenance job Reinstatement
method
1 Connections
• Intake air temperature sensor coupler
• Wire harness ECU coupler
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. Setting the
engine stop
switch to “RUN”
and turning the
main switch on.
2 Open or short circuit in wire harness. Repair or replace if there is an open or short cir-
cuit.
Between the intake air temperature sensor cou-
pler and ECU coupler.
Black/Blue – Black/Blue
Brown/White – Brown/White
3 Defective intake air temperature sensor. Execute the diagnostic mode (code No. d:05).
Replace if defective.
Refer to “INTAKE AIR TEMPERATURE SEN-
SOR”.