VOLVO
ECM-P258C00 - Vacuum Pump Control Circuit Low. General Failure Information. No sub type information
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)
Pokaż modele wg rocznika i silnika (8)
- Volvo S60 (2011–)2011Tylko silnik: B4204T6, B4204T7
- Volvo S80 (2007–)2010Tylko silnik: B4204T6
- Volvo S80 (2007–)2011Tylko silnik: B4204T6, B4204T7
- Volvo V60 (2011–)2011Tylko silnik: B4204T6, B4204T7
- Volvo V70 (2008–)2010Tylko silnik: B4204T6
- Volvo V70 (2008–)2011Tylko silnik: B4204T6, B4204T7
- Volvo XC60 (2009–)2010Tylko silnik: B4204T6
- Volvo XC60 (2009–)2011Tylko silnik: B4204T6, B4204T7
Co oznacza ten kod błędu?
The signal to the control circuit for the brake vacuum pump is too low. The engine control module (ECM) drives the pump relay, and the pump helps the brake booster build vacuum. The code is set when the signal is too low, and the cause may be the wiring, the connectors, the relay or the engine control module.
Możliwe przyczyny
- Contact resistance or oxidation at the connections
- Signal wire shorted to ground
- Damaged relay
- Damaged engine control module (ECM)
Co możesz zrobić
- 1Check that the fuses are intact
- 2Use a multimeter to check that the signal wire to the pump is not shorted to ground
- 3Check the connections in the pump and relay wiring for contact resistance and oxidation
- 4If you have a diagnostic tool, activate the pump; it should run when you do
- 5If the brake pedal becomes heavy to press, do not drive on until a workshop has fixed the fault
- 6If the fault remains after these checks, a workshop can decide whether the relay or the engine control module is damaged
Objawy, które możesz zauważyć2
- Yellow warning symbol and text message in the display
- Brake pedal requires more effort than normal
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.