VOLVO
ECM-0647 - conditioning (A/C) relay. 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 (12)
- Volvo C30 (2007–2013)2007–2010Kun motor: B4164S3, D4204T
- Volvo C30 (2007–2013)2011–2012Kun motor: B4164S3
- Volvo C70 (2006–2013)2008Kun motor: D4204T
- Volvo C70 (2006–2013)2009–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo S40 (2004–2013)2004Kun motor: D4204T, D4204T2
- Volvo S40 (2004–2013)2005–2006Kun motor: B4164S3, D4204T, D4204T2
- Volvo S40 (2004–2013)2007–2010Kun motor: B4164S3, D4204T
- Volvo S40 (2004–2013)2011–2012Kun motor: B4164S3
- Volvo V50 (2004–2013)2004Kun motor: D4204T, D4204T2
- Volvo V50 (2004–2013)2005–2006Kun motor: B4164S3, D4204T, D4204T2
- Volvo V50 (2004–2013)2007–2010Kun motor: B4164S3, D4204T
- Volvo V50 (2004–2013)2011–2012Kun motor: B4164S3
Hva betyr feilkoden?
The engine control module (ECM) monitors the A/C relay and sets the code when the relay signal comes in above what is expected. The cause may be a signal wire shorted to supply voltage or a damaged A/C relay. Air conditioning may then stop working.
Mulige årsaker
- Signal wire short-circuited to supply voltage
- Damaged A/C relay
Hva du kan gjøre
- 1Check that the air conditioning fuses are intact
- 2With the ignition off, check the connectors at the A/C relay for looseness, contact resistance and oxidation
- 3Check the signal wire to the relay for chafing and for a short to supply voltage
- 4Use a multimeter to check that the signal wire has no contact with battery voltage
- 5If the fault remains, have a workshop decide whether the relay needs replacing
Symptomer du kan merke1
- Air conditioning does not work
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