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Fault code No.
Item
1
Connection of intake air tem-
perature sensor coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
2
Connection of ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
3
Wire harness continuity.
4
Installed condition of intake
air temperature sensor.
Check for looseness or
pinching.
5
Defective intake air tempera-
ture sensor.
6
Malfunction in ECU.
22
Intake air temperature sensor: open or short circuit detected.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between intake air tempera-
ture sensor coupler and joint
coupler.
black/blue–black/blue
Between intake air tempera-
ture sensor coupler and ECU
coupler.
brown/white–brown/white
Between joint coupler and
ECU coupler.
black/blue–black/blue
Improperly installed sensor
→ Reinstall or replace the
sensor.
Execute the diagnostic
mode. (Code No. 05)
When engine is cold:
Displayed temperature is
close to the ambient temper-
ature.
The displayed temperature is
not close to the ambient tem-
perature. → Check the intake
air temperature sensor.
Replace if defective.
Refer to "CHECKING THE
INTAKE AIR TEMPERA-
TURE SENSOR" on page
8-77.
Replace the ECU.
8-45
FUEL INJECTION SYSTEM
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 5.
Turn the main switch to "
(on).
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 6.
"
"
"
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