FUEL INJECTION SYSTEM
8-67
Fault code No. 22
5Defective coolant temperature
sensor.
Execute the diagnostic mode.
(Code No. 06)
When engine is cold:
Displayed temperature is close
to the ambient temperature.
The displayed temperature is
not close to the ambient temper-
ature o Check the coolant tem-
perature sensor.
Replace if defective.
Refer to “CHECKING THE
COOLANT TEMPERATURE
SENSOR” on page 8-190.
Tur n the m ain sw itch to “ON”.
Fault code number is not dis-
played o Service is finished.
Fault code number is displayed
o Go to item 6.
6Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (Engine Control Unit)” on
page 8-180.
Fault code No. 22
Item Intake air temperature sensor: open or short circuit detected.
Fail-safe system Able to start engine
Able to drive vehicle
Diagnostic code No. 05
Meter display Displays the air temperature.
Procedure Compare the actually measured air temperature with the meter display
value.
Item Probable cause of
malfunction and check
Maintenance job Confirmation of service com-
pletion
1Connection of intake air temper-
ature sensor coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
Improperly connected o Con-
nect the coupler securely or
replace the wire harness.
Tur n the m ain sw itch to “ON”.
Fault code number is not dis-
played o Service is finished.
Fault code number is displayed
o Go to item 2.
2Connection of wire harness
ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
Improperly connected o Con-
nect the coupler securely or
replace the wire harness.
Tur n the m ain sw itch to “ON”.
Fault code number is not dis-
played o Service is finished.
Fault code number is displayed
o Go to item 3.
Fault code No. 21
Item Coolant temperature sensor: open or short circuit detected.
To Next Page
Loading...
Need help?
General
