Yamaha 2007 FZ6-NA Service Manual page 421

Fault code No. 22 Symptom
Diagnostic code No.
Item/components and probable
Order
Installed condition of intake air tem-
1
perature sensor
Connected state of connector
• Intake air temperature sensor cou-
pler
2
• Main wire harness ECU coupler
Open or short circuit in wire harness
and/or sub lead.
3
Defective intake air temperature sen-
sor.
4
24 Symptom No normal signal is received from the O
Fault code No.
Diagnostic code No.
Item/components and probable
Order
Installed condition of O
1
Connected state of connector
• O sensor coupler
2
• Main wire harness ECU coupler
2
• Sub-wire harness coupler
Open or short circuit in wire harness
and/or sub lead.
3
Check fuel pressure.
4
Defective O
5
2
Intake air temperature sensor-open or short circuit
detected.
05 Intake air temperature sensor
cause
cause
sensor
2
sensor
FUEL INJECTION SYSTEM
Check or maintenance job
Check the installed area for
looseness 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 it securely.
• Repair or replace if there is an
open or short circuit.
• Main wire harness
(Black/Blue–Black/Blue)
(Brown/White–Brown/White)
• Execute the diagnostic monitor-
ing mode. (Code No.05)
• Replace if defective.
Refer to "CHECKING THE
INTAKE AIR TEMPERATURE
SENSOR" on page 8-130.
Check or maintenance job
Check the installed area for
looseness 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 it securely.
• Repair or replace if there is an
open or short circuit.
• Main wire harness
(Gray/Green–Gray/Green)
(Black/Blue–Black/Blue)
(Red/White–Red/White)
(Pink/Black–Pink/Black)
Refer to "CHECKING THE FUEL
PRESSURE" on page 7-6.
Replace if defective.
8-48
Reinstate-
ment method
Turning the
main switch
ON.
sensor.
2
Reinstate-
ment method
Starting the
engine, warm-
ing it up until
the coolant
temperature is
60°C or more,
and then run-
ning it between
2000–3000 r/
min until the
engine trouble
indicator turns
off.