VOLVO
ECM-621C - Engine cooling fan (FC). Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- 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 V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
The engine control module (ECM) has registered too high a signal on the signal cable to the cooling fan control module, and the code is set. This may be because the cable has come into contact with voltage, or because the control module is damaged.
Mulige årsaker
- Signal cable short-circuited to supply voltage
- Damaged cooling fan control module
Hva du kan gjøre
- 1Use a multimeter to check that the signal cable is not in contact with battery voltage when the ignition is on
- 2Look for chafed cables that may have touched a live wire
- 3Check that the connectors to the fan and the control module are firmly seated and free from oxidation
- 4With a diagnostic tool: activate the cooling fan and check that it starts and stops as it should
- 5If you find no fault, have a workshop check the cooling fan control module
Symptomer du kan merke1
- The cooling fan runs continuously even with the ignition switched off
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