Yamaha R6 2009 Service Manual page 378

Fault code No. 21
Diagnostic code No.
Item/components and probable
Order
cause
1 Connections
• Coolant temperature sensor coupler
• Main wire harness ECU coupler
2 Open or short circuit in wire harness.
3 Defective coolant temperature sensor. • Execute the diagnostic mode.
Fault code No. 22
Diagnostic code No.
Item/components and probable
Order
cause
1 Connections
• Air temperature sensor coupler
• Main wire harness ECU coupler
2 Open or short circuit in wire harness.
3 Defective air temperature sensor.
Coolant temperature sensor: open or short circuit
Symptom
detected.
06 Coolant temperature sensor
Check or maintenance job
• Check the couplers for any pins
• Check the locking condition of
• If there is a malfunction, repair
• Repair or replace if there is an
• Between coolant temperature
• Replace if defective.
Symptom Air temperature sensor: open or short circuit detected.
05 Air temperature sensor
Check or maintenance job
• Check the couplers for any pins
• Check the locking condition of
• If there is a malfunction, repair
• Repair or replace if there is an
• Between air temperature sen-
• Execute the diagnostic mode.
• Replace if defective.
8-55
FUEL INJECTION SYSTEM
that may be pulled out.
the couplers.
it and connect the coupler
securely.
open or short circuit.
sensor coupler and ECU cou-
pler.
(green/white–green/white)
(black/blue–black/blue)
(Code No. 06)
Refer to "CHECKING THE
COOLANT TEMPERATURE
SENSOR" on page 8-97.
that may be pulled out.
the couplers.
it and connect the coupler
securely.
open or short circuit.
sor coupler and ECU coupler.
(brown/white–brown/white)
(black/blue–black/blue)
(Code No. 05)
Refer to "CHECKING THE AIR
TEMPERATURE SENSOR" on
page 8-101.
Reinstatement
method
Reinstated
automatically if
a normal signal
is received.
Reinstatement
method
Reinstated
automatically if
a normal signal
is received.