VOLVO
ECM-P258D00 - Vacuum Pump Control Circuit High. 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 high while the engine runs. The engine control module (ECM) drives the pump relay, and the pump helps the brake booster build vacuum. The fault may come from a signal wire shorted to supply voltage, poor connections, the relay or the engine control module.
Możliwe przyczyny
- Contact resistance or oxidation at the connections
- Signal wire shorted to supply voltage
- Damaged relay
- Damaged engine control module (ECM)
Co możesz zrobić
- 1Confirm that the fuses for the pump circuit are whole
- 2Use a multimeter to check that the signal wire is not shorted to the positive supply
- 3Check the connectors to the pump and relay for oxidation, loose fit and raised resistance
- 4If the brake pedal becomes hard to press, do not keep driving until a workshop has fixed the fault
- 5If the fault remains, a workshop should 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.