FI
Fault code No.
22
Symptom
Open or short circuit detected from the intake temperature sensor.
Used diagnostic code No. 05 (intake temperature sensor)
Order Inspection operation item and probable
cause
Operation item and countermeasure
Reinstatement
method
1
Connected condition of connector
Inspect 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.
Intake temperature sensor coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated by
turning the main
switch ON.
2
Open or short circuit in wiring harness
and/or sub lead.
Repair or replace if there is an open or short circuit.
Between sensor coupler and ECU coupler
Black/Blue – Black/Blue
Green/White – Green/White
3
Defective intake temperature sensor.
Execute the diagnostic mode (Code No.05).
Replace if defective.
1. Remove the intake air temperature sensor from
the air filter case.
2. Connect the pocket tester (
Ω
×
100) to the intake
air temperature sensor terminal as shown.
3. Measure the intake air temperature sensor resis-
tance.
WARNING
• Handle the intake air temperature sensor with
special care.
• Never subject the intake air temperature sen-
sor to strong shocks. If the intake air temper-
ature sensor is dropped, replace it.
4. Is the intake air temperature sensor OK?
Tester positive probe
→
green/white
Tester negative probe
→
black/blue
Intake air temperature sensor
resistance
2.21 ~ 2.69 k
Ω
at 20°C (68°F)
FUEL INJECTION SYSTEM
76
Содержание RX10RTL
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