VOLVO
ECM-P252000 - A/C Request A Circuit Low. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerS60 (2011–), S80 (2007–), V70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo S60 (2011–)2011–2012Kun motor: B5254T5
- Volvo S80 (2007–)2007–2008Kun motor: B5254T6
- Volvo S80 (2007–)2009Kun motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Kun motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Kun motor: B5254T10
- Volvo V70 (2008–)2008Kun motor: B5254T6
- Volvo V70 (2008–)2009Kun motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Kun motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Kun motor: B5254T10
Hva betyr feilkoden?
The code concerns the control valve in the A/C compressor, which the engine control module drives with PWM. The control module compares the valve signal with predefined limits and stores the code when the signal is outside them. Possible causes are a short in the signal wire, an open circuit in the supply wire or a damaged valve.
Mulige årsaker
- Signal wire short-circuited to supply voltage
- Signal wire short-circuited to ground
- Open circuit in the voltage supply cable
- Damaged control valve (solenoid)
Hva du kan gjøre
- 1If you have a diagnostic tool, read the fault status with A/C switched on and see whether the fault is still active
- 2Check that the relevant fuses are intact
- 3Check the connector to the control valve in the A/C compressor for contact resistance and oxidation
- 4Use a multimeter to check that the supply cable to the control valve has no open circuit and is not short-circuited to ground (body)
- 5If the fault remains, have a workshop with diagnostic equipment check the control valve in the A/C compressor
Symptomer du kan merke1
- Uneven cooling from the A/C system
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.