VOLVO
ECM-P252100 - A/C Request A Circuit High. 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 engine control module controls the A/C compressor stroke volume through a control valve driven by a PWM signal, and checks the valve's performance. The code is stored when the valve signal falls outside the limit values, here on the high side. Possible causes are a short to supply voltage or ground 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
- 1Read the fault status with A/C switched on and the engine running. If the code is not active, the fault may have been intermittent
- 2Check that the relevant fuses are intact
- 3Check the connector at the A/C compressor for contact resistance and oxidation
- 4Use a multimeter to check that the signal wire to the control valve is not short-circuited to plus
- 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.