VOLVO
ECM-P01112A - Intake Air Temperature Sensor 1 Circuit Range/Performance (Bank 1). General Signal Failures. Signal stuck in range
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
8 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (8)
- Volvo S60 (2011–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15, D4204T5 only
- Volvo V40 (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo V70 (2008–)2014–2015Engine B4204T11, D4204T5 only
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, D4204T5 only
What does this fault code mean?
The engine control module (ECM) monitors the intake temperature using the mass air flow sensor and the intake air temperature sensor. During one driving cycle the value has stayed still within a limited range, even though the temperature normally changes during varied driving. The sensor is built into the mass air flow sensor, so it is the same unit that also measures airflow.
Possible causes
- Contact resistance in the connector
- Damaged mass air flow sensor or intake air temperature sensor
What you can do
- 1Read and note the fault code, clear it, then road test the vehicle at varied speeds to see whether it returns
- 2Check the connector to the mass air flow sensor: it should be firmly seated and free from corrosion and moisture
- 3If you have a diagnostic tool: follow the air temperature in live data while driving. If it stays still, the fault is probably still present
- 4If the connector is in order and the fault remains, have a workshop check or replace the mass air flow sensor
Symptoms you may notice1
- The Check engine light comes on or behaves abnormally
What the fault can affect3
- The control module uses a calculated value for the air temperature
- The air temperature in the mass air flow sensor is set equal to the temperature between the turbocharger and throttle
- The outside temperature is taken from the sensor in the rear view mirror
General guidance for car owners. Diagnosis on the car can point to a different cause.