VOLVO
ECM-B12A612 - Auxiliary Heater Water Pump. General Electrical Failures. Circuit short to battery
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
12 modellerC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Vis modeller per årsmodell og motor (26)
- Volvo C30 (2007–2013)2011–2013Kun motor: D4162T
- Volvo S40 (2004–2013)2011–2012Kun motor: D4162T
- Volvo S60 (2011–)2011–2012Kun motor: D4162T
- Volvo S60 (2011–)2013Kun motor: B5204T8, B5204T9, B5254T12, B5254T14, D4162T
- Volvo S60 (2011–)2014–2015Kun motor: B5204T8, B5204T9, B5254T12, B5254T14, D4162T, D4204T5
- Volvo S80 (2007–)2012Kun motor: D4162T
- Volvo S80 (2007–)2013Kun motor: B5254T12, B5254T14, D4162T
- Volvo S80 (2007–)2014Kun motor: B5254T12, B5254T14, D4162T, D4204T5
- Volvo S80 (2007–)2015Kun motor: D4162T, D4204T5
- Volvo V40 (2013–)2013Alle motorer unntatt: B4164T, B4164T3, D5204T4, D5204T6
- Volvo V40 (2013–)2014Kun motor: B5204T8, B5204T9, B5254T12, B5254T14, D4162T
- Volvo V40 (2013–)2015Kun motor: B5204T8, B5204T9, D4162T, D4204T14
- Volvo V40 Cross Country (2013–)2013–2014Alle motorer unntatt: B4164T, D5204T4, D5204T6
- Volvo V40 Cross Country (2013–)2015Alle motorer unntatt: B4164T, B4204T11, D5204T6
- Volvo V50 (2004–2013)2011–2012Kun motor: D4162T
- Volvo V60 (2011–)2011–2012Kun motor: D4162T
- Volvo V60 (2011–)2013Kun motor: B5204T8, B5204T9, D4162T, D82PHEV
- Volvo V60 (2011–)2014Kun motor: B5204T8, B5204T9, B5254T12, D4162T, D4204T5, D82PHEV
- Volvo V60 (2011–)2015Kun motor: B5204T9, B5254T12, D4162T, D4204T5, D82PHEV, D87PHEV
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2012Kun motor: D4162T
- Volvo V70 (2008–)2013Kun motor: B5204T9, D4162T
- Volvo V70 (2008–)2014–2015Kun motor: B5204T9, D4162T, D4204T5
- Volvo XC60 (2009–)2014Kun motor: D4204T5
- Volvo XC60 (2009–)2015Kun motor: B5204T9, B5254T12, B5254T14, D4204T5
- Volvo XC70 (2008–)2014–2015Kun motor: D4204T5
Hva betyr feilkoden?
The engine control module monitors the coolant pump relay and activates it at regular intervals to check whether the fault has cleared itself. The code is set when the relay's connection to the module is short-circuited to supply voltage. The coolant pump is then switched off, which can affect temperature control and the parking heater.
Mulige årsaker
- Loose connection or oxidation in the connector
- Signal wire short-circuited to supply voltage
- Damaged coolant pump relay
- Damaged pump
- Short circuit or open circuit in the wiring to the pump
Hva du kan gjøre
- 1Check that the relevant fuses are intact and that the connectors at the coolant pump relay are fully seated
- 2With a multimeter, check that the signal wire has no contact with battery voltage
- 3Check that the pump and its wiring are intact; a damaged pump or wire can produce the same effect
- 4If the connectors and wiring are sound, the relay or pump is probably damaged and should be replaced by a workshop
Symptomer du kan merke4
- Uneven temperature in the cabin
- HYBRID drive mode is used all the time or too often, with the combustion engine running
- The parking heater does not work
- Text window with a warning symbol and text message
Hva feilen kan påvirke2
- The coolant pump is switched off
- In cold outdoor weather the coolant pump keeps running
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.