VOLVO
ECM-P010100 - Mass or Volume Air Flow Sensor "A" Circuit Range/Performance. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
11 modelsC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (17)
- Volvo C30 (2007–2013)2011–2013Engine D4162T only
- Volvo S40 (2004–2013)2011–2012Engine D4162T only
- Volvo S60 (2011–)2011–2013Engine D4162T only
- Volvo S60 (2011–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4162T, D4204T5 only
- Volvo S80 (2007–)2012–2013Engine D4162T only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15, D4162T, D4204T5 only
- Volvo V40 (2013–)2013–2014Engine D4162T only
- Volvo V40 (2013–)2015Engine B4204T11, D4162T, D4204T14 only
- Volvo V40 Cross Country (2013–)2013–2014Engine D4162T only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4162T, D4204T14 only
- Volvo V50 (2004–2013)2011–2012Engine D4162T only
- Volvo V60 (2011–)2011–2013Engine D4162T only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9, D4162T, D4204T5 only
- Volvo V70 (2008–)2012–2013Engine D4162T only
- Volvo V70 (2008–)2014–2015Engine B4204T11, D4162T, 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 ECM uses the mass air flow sensor to measure the air passing through the intake pipe and compares it with a modelled value. The code is stored when the gap between the measured and modelled values stays too large for a set period. If the fault persists the control module relies on a model rather than the sensor reading.
Possible causes
- Air leak in the intake system, for example on hoses or joints downstream of the mass air flow sensor
- Contact resistance or corrosion in the connector terminals
- Break in the signal or supply wire
- Signal wire shorted to ground
- Signal wire shorted to supply voltage
- Damaged mass air flow sensor
What you can do
- 1Read and note the code, clear it and road test to see whether it returns
- 2Look for leaks in the intake system downstream of the sensor: cracked hoses, loose clamps and disconnected joints
- 3Check that the connectors at the mass air flow sensor are fully engaged and free from corrosion
- 4With a multimeter, check that the signal and supply wires to the sensor have no break and are not shorted to ground or supply voltage
- 5If you have diagnostic equipment, read the air flow in live data at light throttle and during varied driving, and check that the value changes smoothly as the throttle is varied
- 6If the fault remains, have a workshop check the mass air flow sensor
Symptoms you may notice3
- Check engine lamp lit or behaving abnormally
- The engine lacks power and runs poorly
- The engine hesitates, surges or runs unevenly during acceleration, deceleration and steady speed
What the fault can affect1
- The control module calculates air mass from a model instead of the measured value
General guidance for car owners. Diagnosis on the car can point to a different cause.