VOLVO
ECM-P010C00 - Mass or Volume Air Flow B Circuit Low. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (8)
- Volvo S80 (2007–)2007–2009Engine D5244T4, D5244T5 only
- Volvo S80 (2007–)2010–2011Engine D4164T only
- Volvo V70 (2008–)2008–2009Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2010–2011Engine D4164T only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The ECM monitors the B-side mass air flow sensor signal and stores the code when the signal is too high, too low or wrong. The fault here is that the B-circuit signal is too low.
Possible causes
- The B-side air flow signal is too low
What you can do
- 1Read and note the code, clear it and road test to see whether it returns
- 2Check that the connectors at the B-side mass air flow sensor are fully engaged and free from oxidation
- 3With a multimeter, check that the signal wire has no break
- 4Look for chafed wiring near the B-side mass air flow sensor
- 5If the fault remains, have a workshop check the B-side mass air flow sensor
Symptoms you may notice2
- The car lacks power and runs poorly
- The engine hesitates or surges during acceleration, deceleration and steady speed
What the fault can affect2
- The control module works out air mass instead of using the measured value
- Engine torque may be limited
General guidance for car owners. Diagnosis on the car can point to a different cause.