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DTC P0112, P0113 IAT SENSOR
EC-1551
[YD (WITHOUT EURO-OBD)]
C
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EC
DTC P0112, P0113 IAT SENSOR PFP:22630
Component Description BBS0028U
The intake air temperature sensor is built into mass air flow sensor.
The sensor detects intake air temperature and transmits a signal to
the ECM.
The temperature sensing unit uses a thermistor which is sensitive to
the change in temperature. Electrical resistance of the thermistor
decreases in response to the temperature rise.
<Reference data>
*: This data is reference values and is measured between ECM terminal 55 (Intake
air temperature sensor) and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output
voltage. Doing so may result in damage to the ECM's transistor.
Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis Logic BBS0028V
The MI will not light up for these self-diagnoses.
DTC Confirmation Procedure BBS0028W
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1554, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 seconds.
PBIB1604E
Intake air
temperature °C (°F)
Voltage* V Resistance kΩ
25 (77) 2.4 1.800 - 2.200
80 (176) 0.8 0.283 - 0.359
SEF012P
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0112
0112
Intake air temperature sen-
sor circuit low input
An excessively low voltage from the sensor is
sent to ECM.
● Harness or connectors
(The sensor circuit is open or
shorted.)
● Intake air temperature sensor
P0113
0113
Intake air temperature sen-
sor circuit high input
An excessively high voltage from the sensor is
sent to ECM.
SEF817Y
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