Diagnostic Trouble Code (DTC) Information

ECM-P011400 Intake Air Temperature Sensor 1 Intermittent/Irregular


Condition







The engine control module (ECM) checks the signal from the temperature sensor in the intake manifold under two different driving conditions. The check is first made during high airflow while the vehicle is travelling and then while the vehicle is stationary and idling. The diagnostic trouble code is generated if the control module registers that the temperature difference between these two measurements is unreasonably similar.

Substitute Value
- The intake temperature value is set to 30 degree C.

Possible Source
- Contact resistance in connector.
- Damaged air temperature sensor (integrated in mass air flow sensor).

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.