VOLVO
ECM-640C - Turbocharger (TC) control system. Signal too high
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)2003–2004Kun 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, 2007–2011Kun motor: B5254T2
- Volvo XC90 (2003–)2005–2006Kun motor: B5254T2, B6294T
Hva betyr feilkoden?
The engine control module compares the measured boost pressure, taken before the throttle, with the calculated boost pressure after the throttle. If the ratio between the two becomes incorrect, the fault code is set. This means the signal from the boost pressure system is too high compared with the calculated value.
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
- Damaged non-return valve to the crankcase ventilation
- Software fault in the engine control module
Hva du kan gjøre
- 1Check that the boost pressure sensor is fully seated and has not come loose, and that its connector is clean and undamaged
- 2Look for air leaks in the intake system, especially the hose between the turbocharger and the throttle unit. Check for loose clamps and cracks
- 3Check that the crankcase ventilation non-return valve is fitted correctly and has no damage
- 4If no leak and no loose sensor is found, the boost pressure sensor is probably damaged. Have a workshop replace it and check the fault
- 5Have a workshop check whether a software update is available for the engine control module, 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.