VOLVO
ECM-U014000 - Lost Communication With Central electronic module. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
12 modelsC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (31)
- Volvo C30 (2007–2013)2011–2013Engine D4162T only
- Volvo S40 (2004–2013)2011–2012Engine D4162T only
- Volvo S60 (2011–)2011–2012Engine B5254T5, D4162T only
- Volvo S60 (2011–)2013Engine D4162T only
- Volvo S60 (2011–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4162T, D4204T5 only
- Volvo S80 (2007–)2007All engines except: B6324S, B8444S
- Volvo S80 (2007–)2008All engines except: B6304T2, B6324S, B8444S
- Volvo S80 (2007–)2009All engines except: B6304T2, B6324S, B8444S, D5244T10
- Volvo S80 (2007–)2010Engine B4204S3, B4204S4, B5254T10, B5254T11, B5254T8, D4164T, D4204T only
- Volvo S80 (2007–)2011Engine B4204S3, B4204S4, B5254T10, B5254T11, B5254T8, D4164T only
- Volvo S80 (2007–)2012Engine B5254T10, D4162T only
- Volvo S80 (2007–)2013Engine D4162T only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15, D4162T, D4204T5 only
- Volvo V40 (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V50 (2004–2013)2011–2012Engine D4162T only
- Volvo V60 (2011–)2011–2013Engine D4162T only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9, D4162T, D4204T5 only
- Volvo V70 (2008–)2008All engines except: B6304T2, B6324S
- Volvo V70 (2008–)2009All engines except: B6304T2, B6324S, D5244T10
- Volvo V70 (2008–)2010Engine B4204S3, B4204S4, B5254T10, B5254T11, D4164T, D4204T only
- Volvo V70 (2008–)2011Engine B4204S3, B4204S4, B5254T10, B5254T11, D4164T only
- Volvo V70 (2008–)2012Engine B5254T10, D4162T only
- Volvo V70 (2008–)2013Engine D4162T only
- Volvo V70 (2008–)2014–2015Engine B4204T11, D4162T, D4204T5 only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, D4204T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The engine control module (ECM) receives vehicle configuration information from the central electronics control module (CEM) over the CAN network. The code is set when the engine control module detects that communication with the CEM stops or that the signal from it is faulty.
Possible causes
- Break in one of the CAN wires, or in the wiring to the central electronics control module
- Short circuit between the CAN wires
- Contact resistance or oxidation in the connections
- The central electronics control module is not intended for this car, for example a used module with different software or hardware
- Internal fault in another control module on the same part of the CAN network
- Fault inside the engine control module (ECM)
What you can do
- 1Start with the codes in the central electronics control module. Stored communication codes in several control modules point to a shared fault on the CAN network
- 2Check that the fuses are intact
- 3Gently move the wiring and connectors during testing to see whether the fault appears
- 4Look for chafed CAN wires. Use a multimeter to check that they have no break or short to ground or supply voltage
- 5If the central electronics control module has been replaced: check that it is intended for this exact car
- 6If the fault returns: have a workshop with diagnostic equipment check the communication. Do not replace the central electronics control module until a workshop has shown that it is faulty
Symptoms you may notice1
- The check engine warning light comes on or behaves abnormally
General guidance for car owners. Diagnosis on the car can point to a different cause.