What does fault code ECM-P00BD00 mean?

Diagnostic fault code details for ECM-P00BD00 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo C70 (2006–2013)). Repair service at OBD Tuning.

VOLVO

ECM-P00BD00 - Mass or Volume Air Flow A Circuit Range/Performance - Air Flow Too High. General Failure Information. No sub type information

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

12 models

C30 (2007–2013), C70 (2006–2013), 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 (41)

What does this fault code mean?

The engine control module (ECM) constantly compares the mass air flow (MAF) sensor signal with a calculated air mass value. The code is stored when the sensor reads too much airflow compared with the calculated value, while the engine is running. Common causes are leaks in the hoses and connections between the turbocharger and the intake pipe, or an air leak between the turbocharger and the boost pressure sensor. The fault can also lie in a damaged mass air flow sensor.

Possible causes

Leak in the hose or connection between the turbocharger and the intake pipe
Air leak in the intake system between the turbocharger and the boost pressure sensor
Contact resistance or corrosion on the signal wire
Damaged mass air flow sensor
Together with ECM-P029900 the code points to a leak in the hose or connection between the turbocharger and the throttle body

What you can do

1Read and note the code, clear it and road test to see whether it returns
2Look for cracks, loose clamps and disconnected joints in the hoses between the turbocharger and the intake pipe
3Check that the connector on the mass air flow sensor is fully engaged and free from corrosion
4With a multimeter, check that the signal wire to the mass air flow sensor is not shorted to ground or to supply voltage
5If you have diagnostic equipment, compare the air mass flow in live data with the throttle input and check that the value follows the throttle smoothly
6If the fault remains, have a workshop check the mass air flow sensor and the intake system

Symptoms you may notice3

Engine warning lamp (check engine) lit or behaving abnormally
Text message in the display
The car runs poorly and lacks power

What the fault can affect2

The control module substitutes a computed air mass figure for the sensor reading
EGR is not controlled as it should be

General guidance for car owners. Diagnosis on the car can point to a different cause.