VOLVO
ECM-520C - Air conditioning (A/C) pressure sensor. Signal too high
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 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Vis modeller per årsmodell og motor (14)
- Volvo S60 (2001–2009)2005–2006Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2007Kun motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009Kun motor: B5204T5, B5244T5, B5254T2
- Volvo S80 (1999–2006)2005–2006Kun motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V70 (2000–2008)2005Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006–2007Kun motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2008Kun motor: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2005Alle motorer unntatt: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Kun motor: B5244T4, B5254T2
- Volvo V70 XC / XC70 (2001–2007)2007Kun motor: B5254T2
- Volvo XC90 (2003–)2005–2006Kun motor: B5254T2, B6294T
- Volvo XC90 (2003–)2007–2012Kun motor: B5254T2
- Volvo XC90 (2003–)2013–2014Kun motor: B5254T9
- Volvo XC90 (2003–)2015
Hva betyr feilkoden?
The engine control module (ECM) receives an A/C pressure sensor signal above the sensor's normal operating range. The code is set when the engine runs and A/C control is active, and the air conditioning does not work while the fault is present.
Mulige årsaker
- Signal wire shorted to supply voltage
- Open circuit in the supply to the sensor
- Open circuit in the ground lead
- Damaged A/C pressure sensor
Hva du kan gjøre
- 1Read and note the code, clear it and road test with the A/C switched on to see whether it returns
- 2Check that the A/C pressure sensor connector is secure and free from corrosion
- 3Look for chafed, pinched or loose wiring between the sensor and the engine control module
- 4With a multimeter, check that the signal wire has no contact with supply voltage and that the supply and ground leads are not broken
- 5If you have a diagnostic tool, follow the A/C pressure in live data with the A/C on and see whether it reads unrealistically high
- 6If the fault returns after these checks, have a workshop test or replace the sensor
Symptomer du kan merke1
- The air conditioning system does not work
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.