VOLVO
ECM-640D - Turbocharger (TC) control system. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
9 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Vis modeller per årsmodell og motor (23)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo S60 (2001–2009)2003–2004Kun motor: B5254T2
- Volvo S60 (2001–2009)2005–2006Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2007Kun motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009Kun motor: B5204T5, B5244T5, B5254T2
- Volvo S80 (1999–2006)2004Kun motor: B5254T2
- Volvo S80 (1999–2006)2005–2006Kun motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
- Volvo V70 (2000–2008)2003–2004, 2008Kun motor: B5254T2
- Volvo V70 (2000–2008)2005Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006–2007Kun motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2003–2004, 2007Kun motor: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2005Alle motorer unntatt: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Kun motor: B5244T4, B5254T2
- Volvo XC90 (2003–)2003–2004, 2007–2009Kun motor: B5254T2
- Volvo XC90 (2003–)2005–2006Kun motor: B5254T2, B6294T
Hva betyr feilkoden?
The engine control module checks the boost pressure by comparing the measured value from the boost pressure sensor, taken before the throttle, with the calculated value after the throttle. The fault code is set when the relationship between the two becomes wrong while turbo control is active. The signal is too low compared with the calculated value, so the measured boost pressure is below what the module expects.
Mulige årsaker
- Damaged boost pressure sensor
- Loose boost pressure sensor
- Air leak between the turbocharger and the throttle unit
- Large air leak in the intake manifold after the throttle unit
- Faulty software in the engine control module
Hva du kan gjøre
- 1Check that the boost pressure sensor is correctly fitted and has not come loose
- 2Look for air leaks between the turbocharger and the throttle unit, especially in the hoses. Check for loose clamps and damaged hoses
- 3The crankcase ventilation non-return valve should sit in place and be free of any damage
- 4If no fault is found in the checks above, the boost pressure sensor is probably damaged and needs replacing. Have a workshop do this
- 5Have a workshop check whether the engine control module needs a software update, since old software can cause this code
Symptomer du kan merke1
- Poor performance
Hva feilen kan påvirke1
- Boost pressure becomes lower than normal
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.