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FI
FUEL INJECTION SYSTEM
Fault code No.
22
Symptom Intake air temperature sensor: open or short circuit
detected.
Diagnostic code No. d05
Intake air temperature sensor
Order Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Installed condition of air tempera-
ture sensor.
Check for looseness or pinching.
Turning the
main switch to
“ON”.
2
Connections
• Intake air temperature sensor
coupler
• Main 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
securely.
3
Open or short circuit in wire har-
ness.
• Repair or replace if there is an
open or short circuit.
• Between intake air temperature
sensor coupler and ECU coupler
(brown/white–brown/white)
(black/blue–black/blue)
4
Defective air temperature sensor.
• Execute the diagnostic mode.
(Code No.d05)
• Replace if defective.
Refer to “CHECKING THE
INTAKE AIR TEMPERATURE
SENSOR”.