VOLVO
ECM-P252000 - A/C Request A Circuit Low. General Failure Information. No sub type information
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
3 modeleS60 (2011–), S80 (2007–), V70 (2008–)
Pokaż modele wg rocznika i silnika (9)
- Volvo S60 (2011–)2011–2012Tylko silnik: B5254T5
- Volvo S80 (2007–)2007–2008Tylko silnik: B5254T6
- Volvo S80 (2007–)2009Tylko silnik: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Tylko silnik: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Tylko silnik: B5254T10
- Volvo V70 (2008–)2008Tylko silnik: B5254T6
- Volvo V70 (2008–)2009Tylko silnik: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Tylko silnik: B5254T10, B5254T11
- Volvo V70 (2008–)2012Tylko silnik: B5254T10
Co oznacza ten kod błędu?
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.
Możliwe przyczyny
- Signal wire short-circuited to supply voltage
- Signal wire short-circuited to ground
- Open circuit in the voltage supply cable
- Damaged control valve (solenoid)
Co możesz zrobić
- 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
Objawy, które możesz zauważyć1
- Uneven cooling from the A/C system
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.