VOLVO
ECM-643A - Camshaft position, exhaust. Signal too low
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:
5 modellerC70 Cabriolet (1998–2005), S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Vis modeller per årsmodell og motor (9)
- Volvo C70 Cabriolet (1998–2005)2003–2005
- Volvo S60 (2001–2009)2002–2003Kun motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo S60 (2001–2009)2004Kun motor: B5204T5, B5234T3, B5234T7
- Volvo S80 (1999–2006)2002–2003Kun motor: B5204T5, B5234T7, B5244T3
- Volvo S80 (1999–2006)2004Kun motor: B5204T5, B5234T7
- Volvo V70 (2000–2008)2002–2003Kun motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo V70 (2000–2008)2004Kun motor: B5204T5, B5234T3, B5234T7
- Volvo V70 XC / XC70 (2001–2007)2002
- Volvo V70 XC / XC70 (2001–2007)2003–2004Kun motor: B5234T7
Hva betyr feilkoden?
The engine control module has registered that the signal for the exhaust camshaft position is too low. The fault may be caused by poor oil quality, incorrectly adjusted camshafts, a timing belt that has jumped over the teeth, or a mechanical fault in the VVT unit.
Mulige årsaker
- Poor oil quality
- Incorrectly adjusted camshafts
- The timing belt has jumped over the teeth
- Defective reset valve
- Mechanical fault in the VVT unit
Hva du kan gjøre
- 1Start the engine and let it warm up. Read the camshaft adaptation at idle with a diagnostic tool. A value outside the normal range points to a permanent fault
- 2Check the engine oil level and quality, and look for contamination in the oil
- 3If the camshafts are incorrectly adjusted, a workshop needs to adjust them to the crankshaft
- 4Have a workshop check that the timing belt has not jumped over the teeth
Symptomer du kan merke1
- The malfunction indicator lamp (MIL) lights
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.