VOLVO
ECM-P006A64 - MAP - Mass or Volume Air Flow Correlation. Algorithm Based Failures. Signal plausibility failure
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
- Volvo S80 (2007–)2015Engine B4164T only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
Although the code is named as an implausible signal, it concerns the air mass correction factor, which becomes too high. The engine control module works out the expected air mass from several parameters and compares it with the sensor's reading. The fault is set when the factor is too high while the lambda adaptation sits outside a set band.
Possible causes
- Poor contact or oxidation at the air flow sensor connectors
- Air leakage in the intake system
- The intake system is blocked
- The mass air flow sensor is damaged
What you can do
- 1Make sure the mass air flow sensor connector is firmly seated and free from oxidation
- 2Look for leaks in the hoses between the mass air flow sensor and the throttle unit, especially at the connections
- 3Check that the intake system is not blocked by contamination, particularly in the throttle
- 4If you have a diagnostic tool, check that the mass air flow reading in live data is plausible for the engine speed at idle
- 5Have a workshop check the mass air flow sensor if the fault remains after checking the intake system
Symptoms you may notice1
- No noticeable symptoms for the driver
What the fault can affect3
- Air mass is calculated instead of measured
- Control of the rear oxygen sensor is switched off
- The misfire diagnostic is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.