VOLVO
ECM-P258B92 - Vacuum Pump Control Range/Performance. Component Failures. Performance or incorrect operation
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 electric brake vacuum pump helps the brake booster build up vacuum. The code is set when the pressure does not fall far enough within a certain time while the engine is running. The fault may lie in a leak, the relay, the pump or the non-return valve.
Mulige årsaker
- Leak in the vacuum system
- Damaged relay
- Damaged pump
- Damaged non-return valve
Hva du kan gjøre
- 1Check that the hoses between the vacuum system and the brake booster are intact and firmly fitted, since a leak causes this fault
- 2Listen for hissing from hoses and connections while the engine runs
- 3Check the non-return valve in the vacuum system so that it does not let air through
- 4If you have a diagnostic tool: activate the vacuum pump and check that it runs
- 5If the brake pedal feels heavier than usual, do not keep driving; have a workshop fix the fault
- 6If the fault returns, have a workshop check the relay and the pump
Symptomer du kan merke2
- Yellow warning symbol and text message in the display
- Brake pedal requires more effort than normal
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