VOLVO
ECM-0645 - A/C Clutch Relay Control Circuit
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:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (5)
- Volvo C30 (2007–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo C70 (2006–2013)2008Kun motor: D4204T
- Volvo C70 (2006–2013)2009–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo S40 (2004–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo V50 (2004–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
Hva betyr feilkoden?
The ECM switches the air conditioning relay. The relay gets its supply through the engine system's main relay and is earthed via the control module. If the control module sees no signal, the code is set, and the air conditioning will not work.
Mulige årsaker
- Contact resistance or oxidation in the connections
- Break in the signal wire
- Break in the supply wire to the relay
- Damaged A/C relay
Hva du kan gjøre
- 1Check that the air conditioning fuses are intact in the fuse boxes
- 2Try the A/C controls and see whether the compressor clutch engages
- 3With the ignition off, check the connectors at the relay for looseness, contact resistance and oxidation
- 4Use a multimeter to check the signal and supply wires to the relay for breaks and short circuits to earth
- 5If the fault remains, the relay is probably damaged; a workshop should replace it
Symptomer du kan merke1
- Climate control or A/C does not work
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.