VOLVO
ECM-641A - Camshaft control, exhaust. Faulty signal
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
8 ModelleC70 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–)
Modelle nach Baujahr und Motor anzeigen (15)
- Volvo C70 Cabriolet (1998–2005)2003–2005
- Volvo S40 (2004–2013)2004Nur Motor: B5254T3
- Volvo S60 (2001–2009)2002Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo S60 (2001–2009)2003Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3, B5254T2
- Volvo S60 (2001–2009)2004Nur Motor: B5204T5, B5234T3, B5234T7, B5254T2, B5254T4
- Volvo S80 (1999–2006)2002Nur Motor: B5204T5, B5234T7, B5244T3, B6294T
- Volvo S80 (1999–2006)2003Nur Motor: B5204T5, B5234T7, B5244T3, B5254T2, B6294T
- Volvo S80 (1999–2006)2004Nur Motor: B5204T5, B5234T7, B5254T2, B6294T
- Volvo V50 (2004–2013)2004Nur Motor: B5254T3
- Volvo V70 (2000–2008)2002Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo V70 (2000–2008)2003Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3, B5254T2
- Volvo V70 (2000–2008)2004Nur Motor: B5204T5, B5234T3, B5234T7, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2002
- Volvo V70 XC / XC70 (2001–2007)2003–2004Alle Motoren außer: D5244T
- Volvo XC90 (2003–)2003–2004Alle Motoren außer: D5244T
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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
Was Sie tun können
- 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
Symptome, die Sie bemerken können5
- 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
Was der Fehler beeinflussen kann1
- Control of the exhaust camshaft is switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.