Co oznacza kod błędu ECM-P251919?

Diagnostyka i definicja kodu błędu dla ECM-P251919 (Volvo S80 (2007–), Volvo V70 (2008–), Volvo XC60 (2009–)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-P251919 - A/C Request A Circuit. General Electrical Failures. Over temperature

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

5 modeli

S80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Pokaż modele wg rocznika i silnika (6)

Co oznacza ten kod błędu?

Although the code is named over temperature, it concerns a fault on the output of the internal power stage in the engine control module, which drives the A/C compressor solenoid with a PWM signal. The code can be checked when A/C is activated.

Możliwe przyczyny

Signal line from the engine control module short-circuited to supply voltage (see ECM-P252112)
Damaged solenoid in the A/C compressor
Signal line from the engine control module short-circuited to ground (see ECM-P252011)
Contact resistance or oxidation in the connectors, or open circuit in the signal line (see ECM-P251913)
Internal fault in the engine control module

Co możesz zrobić

1Read the fault status while A/C is on and the engine is running. If the fault is not visible, it may have been intermittent
2Check that the relevant fuses are intact
3If you have a diagnostic tool, activate the A/C compressor and see whether it responds to the control
4Use a multimeter to check that the signal line from the engine control module to the A/C compressor is not short-circuited to supply voltage or ground
5If the fault returns, have a workshop assess whether the engine control module needs replacing, since an internal fault cannot be remedied by the owner

Objawy, które możesz zauważyć1

No cooling effect from the A/C system

Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.