VOLVO
ECM-P250287 - Charging System Voltage. Bus Signal / Message Failures. Missing message
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleS60 (2011–), S80 (2007–), V70 (2008–)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo S60 (2011–)2011–2012Nur Motor: B5254T5
- Volvo S80 (2007–)2007–2008Nur Motor: B5254T6
- Volvo S80 (2007–)2009Nur Motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Nur Motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Nur Motor: B5254T10
- Volvo V70 (2008–)2008Nur Motor: B5254T6
- Volvo V70 (2008–)2009Nur Motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Nur Motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Nur Motor: B5254T10
Was bedeutet der Fehlercode?
Two control units, the ECM and the alternator control module (ACM, the charge regulator), talk over a LIN wire. The code is stored when the engine control module detects interference in that communication. The fault may lie in the wiring, in the connectors or in either of the control modules.
Mögliche Ursachen
- Contact resistance or oxidation in the connections
- Short-circuit between the LIN wires
- Open circuit in one of the LIN wires
- Internal fault in another control module on the same part of the LIN network
- Damaged alternator control module (ACM, charge regulator)
- A generator whose charge regulator is not made for LIN communication has been fitted
Was Sie tun können
- 1If the generator has been replaced, check that it is intended for LIN communication, since a generator of the wrong type can cause this code
- 2Inspect the plug on the ACM for contact resistance and oxidation; clean and remedy it if needed
- 3Check the LIN wire for chafing. Use a multimeter to check that it has no open circuit and is not short-circuited to ground or plus
- 4If the fault remains after these checks, have a workshop try a new alternator control module
Symptome, die Sie bemerken können1
- The "Generator not charging" warning lamp lights with the engine running
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.