VOLVO
ECM-P250287 - Charging System Voltage. Bus Signal / Message Failures. Missing message
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerS60 (2011–), S80 (2007–), V70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo S60 (2011–)2011–2012Kun motor: B5254T5
- Volvo S80 (2007–)2007–2008Kun motor: B5254T6
- Volvo S80 (2007–)2009Kun motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Kun motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Kun motor: B5254T10
- Volvo V70 (2008–)2008Kun motor: B5254T6
- Volvo V70 (2008–)2009Kun motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Kun motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Kun motor: B5254T10
Hva betyr feilkoden?
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.
Mulige årsaker
- 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
Hva du kan gjøre
- 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
Symptomer du kan merke1
- The "Generator not charging" warning lamp lights with the engine running
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