VOLVO
ECM-P258C00 - Vacuum Pump Control Circuit Low. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)
Vis modeller per årsmodell og motor (8)
- Volvo S60 (2011–)2011Kun motor: B4204T6, B4204T7
- Volvo S80 (2007–)2010Kun motor: B4204T6
- Volvo S80 (2007–)2011Kun motor: B4204T6, B4204T7
- Volvo V60 (2011–)2011Kun motor: B4204T6, B4204T7
- Volvo V70 (2008–)2010Kun motor: B4204T6
- Volvo V70 (2008–)2011Kun motor: B4204T6, B4204T7
- Volvo XC60 (2009–)2010Kun motor: B4204T6
- Volvo XC60 (2009–)2011Kun motor: B4204T6, B4204T7
Hva betyr feilkoden?
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.
Mulige årsaker
- Contact resistance or oxidation at the connections
- Signal wire shorted to ground
- Damaged relay
- Damaged engine control module (ECM)
Hva du kan gjøre
- 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
Symptomer du kan merke2
- Yellow warning symbol and text message in the display
- Brake pedal requires more effort than normal
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.