FUEL INJECTION SYSTEM
8-51
Fault code No.
21
Symptom
Coolant temperature sensor: open or short circuit
detected.
Diagnostic code No.
06
Coolant temperature sensor
Orde
r
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Connections
• Coolant temperature sensor coupler
• Main wire harness ECU coupler
• Check the coupler 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.
Reinstated
automatically if
a normal signal
is received.
2
Open or short circuit in wire harness.
• Repair or replace if there is an
open or short circuit.
• Between coolant temperature
sensor coupler and ECU cou-
pler.
(Green/White–Green/White)
(Black/Blue–Black/Blue)
3
Defective coolant temperature sensor. • Execute the diagnostic mode.
(Code No.06)
• Replace if defective.
Refer to "CHECKING THE
COOLANT TEMPERATURE
SENSOR" on page 8-100.
Fault code No.
22
Symptom Air temperature sensor: open or short circuit detected.
Diagnostic code No.
05
Air temperature sensor
Orde
r
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Connections
• Air temperature sensor coupler
• Main wire harness ECU coupler
• 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.
Reinstated
automatically if
a normal signal
is received.
2
Open or short circuit in wire harness.
• Repair or replace if there is an
open or short circuit.
• Between air temperature sensor
coupler and ECU coupler.
(Brown/White–Brown/White)
(Black/Blue–Black/Blue)
3
Defective air temperature sensor.
• Execute the diagnostic mode.
(Code No.05)
• Replace if defective.
Refer to "CHECKING THE
INTAKE AIR TEMPERATURE
SENSOR" on page 8-103.
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
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