VOLVO
ECM-P258A00 - Vacuum Pump Control Circuit/Open. General Failure Information. No sub type information
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)
Modelle nach Baujahr und Motor anzeigen (8)
- Volvo S60 (2011–)2011Nur Motor: B4204T6, B4204T7
- Volvo S80 (2007–)2010Nur Motor: B4204T6
- Volvo S80 (2007–)2011Nur Motor: B4204T6, B4204T7
- Volvo V60 (2011–)2011Nur Motor: B4204T6, B4204T7
- Volvo V70 (2008–)2010Nur Motor: B4204T6
- Volvo V70 (2008–)2011Nur Motor: B4204T6, B4204T7
- Volvo XC60 (2009–)2010Nur Motor: B4204T6
- Volvo XC60 (2009–)2011Nur Motor: B4204T6, B4204T7
Was bedeutet der Fehlercode?
The engine control module (ECM) controls the relay that activates the electric brake vacuum pump, which helps the brake booster build vacuum. The code is set when the signal to the pump's control circuit is too low or missing. The fault may lie in the relay, the wiring, the connectors or the engine control module.
Mögliche Ursachen
- Contact resistance or oxidation at the connections
- Open circuit in the signal wire
- Damaged relay
- Damaged engine control module (ECM)
Was Sie tun können
- 1Check that the fuses for the vacuum pump are intact
- 2Check the connectors to the pump and relay for oxidation and loose connections
- 3Check the signal wire for chafing and breaks
- 4If you have a diagnostic tool: activate the vacuum pump and listen for it to start
- 5Do not keep driving if the brake pedal becomes hard to press; have a workshop fix the fault
- 6If the fault remains after these checks, have a workshop check the relay and the engine control module
Symptome, die Sie bemerken können2
- Yellow warning symbol and text message in the display
- Brake pedal requires more effort than normal
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.