P0112

DTC P0112, P0113 IAT SENSOR




Component Description
The intake air temperature sensor is built-into mass air flow sensor (1). 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.






On Board Diagnosis Logic






DTC Confirmation Procedure

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.

1. Turn ignition switch ON and wait at least 5 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

Wiring Diagram

EC-IATS-01:

Diagnostic Procedure

Step 1:

Step 1 (Continued)-3:

Step 4-5:

Component Inspection

INTAKE AIR TEMPERATURE SENSOR







1. Check resistance between mass air flow sensor (1) terminals 5 and 6 under the following conditions.
2. If NG, replace mass air flow sensor (with intake air temperature sensor).