VOLVO
ECM-640C - Turbocharger (TC) control system. Signal too high
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
9 modeliC30 (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–)
Pokaż modele wg rocznika i silnika (23)
- Volvo C30 (2007–2013)2007Tylko silnik: B5254T3
- Volvo C30 (2007–2013)2008–2013Tylko silnik: B5254T7
- Volvo C70 (2006–2013)2006–2007Tylko silnik: B5254T3
- Volvo C70 (2006–2013)2008–2013Tylko silnik: B5254T7
- Volvo S40 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo S40 (2004–2013)2008Tylko silnik: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Tylko silnik: B5254T7
- Volvo S60 (2001–2009)2003–2004Tylko silnik: B5254T2
- Volvo S60 (2001–2009)2005–2006Tylko silnik: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2007Tylko silnik: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009Tylko silnik: B5204T5, B5244T5, B5254T2
- Volvo S80 (1999–2006)2003–2004Tylko silnik: B5254T2
- Volvo S80 (1999–2006)2005–2006Tylko silnik: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V50 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo V50 (2004–2013)2008–2012Tylko silnik: B5254T7
- Volvo V70 (2000–2008)2003–2004, 2008Tylko silnik: B5254T2
- Volvo V70 (2000–2008)2005Tylko silnik: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006–2007Tylko silnik: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2003–2004, 2007Tylko silnik: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2005Wszystkie silniki oprócz: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Tylko silnik: B5244T4, B5254T2
- Volvo XC90 (2003–)2003–2004, 2007–2011Tylko silnik: B5254T2
- Volvo XC90 (2003–)2005–2006Tylko silnik: B5254T2, B6294T
Co oznacza ten kod błędu?
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.
Możliwe przyczyny
- 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
Co możesz zrobić
- 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
Objawy, które możesz zauważyć1
- Poor performance
Na co może wpływać usterka1
- Boost pressure becomes lower than normal
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.