VOLVO
ECM-641A - Camshaft control, exhaust. Faulty signal
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
8 modellerC70 Cabriolet (1998–2005), 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 (15)
- Volvo C70 Cabriolet (1998–2005)2003–2005
- Volvo S40 (2004–2013)2004Kun motor: B5254T3
- Volvo S60 (2001–2009)2002Kun motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo S60 (2001–2009)2003Kun motor: B5204T5, B5234T3, B5234T7, B5244T3, B5254T2
- Volvo S60 (2001–2009)2004Kun motor: B5204T5, B5234T3, B5234T7, B5254T2, B5254T4
- Volvo S80 (1999–2006)2002Kun motor: B5204T5, B5234T7, B5244T3, B6294T
- Volvo S80 (1999–2006)2003Kun motor: B5204T5, B5234T7, B5244T3, B5254T2, B6294T
- Volvo S80 (1999–2006)2004Kun motor: B5204T5, B5234T7, B5254T2, B6294T
- Volvo V50 (2004–2013)2004Kun motor: B5254T3
- Volvo V70 (2000–2008)2002Kun motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo V70 (2000–2008)2003Kun motor: B5204T5, B5234T3, B5234T7, B5244T3, B5254T2
- Volvo V70 (2000–2008)2004Kun motor: B5204T5, B5234T3, B5234T7, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2002
- Volvo V70 XC / XC70 (2001–2007)2003–2004Alle motorer unntatt: D5244T
- Volvo XC90 (2003–)2003–2004Alle motorer unntatt: D5244T
Hva betyr feilkoden?
The engine control module checks that the exhaust camshaft is in the position requested in relation to the crankshaft. The deviation allowed before the fault code is set varies with engine conditions. The fault shows up as poor performance, hesitation under throttle and starting problems.
Mulige årsaker
- Faulty control of the exhaust camshaft
- Low oil pressure
- Oil of poor quality
- Broken reset valve
- Mechanical fault in the VVT unit
- Valve that sticks
Hva du kan gjøre
- 1A blown fuse in the supply to the exhaust camshaft reset valve can cause the fault code, so check that first
- 2Check the engine oil level and quality. If these are in order, a workshop should check the oil pressure
- 3With a diagnostic tool, read the actual exhaust camshaft position and target value in live data while the engine is revved
- 4Start the camshaft control quick test in the diagnostic tool and see whether the exhaust camshaft follows different targets
- 5Have a workshop remove the reset valve, clean it and check the oil passages. Replace the valve if the fault remains
Symptomer du kan merke5
- Malfunction indicator lamp (MIL) lit
- The engine’s fault indicator (Check engine) lights up or behaves abnormally
- Starting problems, with the starter motor cranking slowly
- Lack of power and poor performance
- The engine hesitates, surges or runs unevenly
Hva feilen kan påvirke1
- Control of the exhaust camshaft is switched off
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