FUEL INJECTION SYSTEM
8-63
Fault code No.
21
Symptom Coolant temperature sensor: open or short circuit detect-
ed.
Diagnostic code No.
06
Coolant temperature sensor
Order Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Installed condition of coolant tempera-
ture sensor
Check for looseness or pinching.
Turning the
main switch to
“ON”.
2
Connections
• Coolant temperature sensor coupler
• Wire harness ECU coupler
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
3
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.
(black/blue–black/blue)
(green/white–green/white)
4
Defective coolant temperature sensor. • Execute the diagnostic mode.
(Code No.06)
• Replace if defective.
Refer to “CHECKING THE
COOLANT TEMPERATURE
SENSOR” on page 8-167.
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
email: [email protected]