VOLVO
ECM-U014100 - Lost Communication With Central electronic module "A". General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (13)
- Volvo S60 (2011–)2011–2014Engine B6304T4 only
- Volvo S60 (2011–)2015Engine B6304T3, B6304T4, B6304T5 only
- Volvo S80 (2007–)2007Engine B6324S, B8444S only
- Volvo S80 (2007–)2008–2009Engine B6304T2, B6324S, B8444S only
- Volvo V60 (2011–)2011–2014Engine B6304T4 only
- Volvo V60 (2011–)2015Engine B6304T3, B6304T4, B6304T5 only
- Volvo V70 (2008–)2008–2009Engine B6304T2, B6324S only
- Volvo XC60 (2009–)2009–2010Engine B6304T2 only
- Volvo XC60 (2009–)2011–2015Engine B6304T4 only
- Volvo XC70 (2008–)2008Engine B6324S only
- Volvo XC70 (2008–)2009Engine B6304T2, B6324S only
- Volvo XC90 (2003–)2005–2006, 2011Engine B8444S only
- Volvo XC90 (2003–)2007–2010Engine B6324S, B8444S only
What does this fault code mean?
The engine control module (ECM) registers a communication fault between itself and the central electronics control module (CEM) and stores the code in the engine control module. This code has no separate troubleshooting, so start with the codes in the CEM and in other control modules on the CAN network.
Possible causes
- Break in one of the CAN wires
- Short circuit between the CAN wires
- Internal fault in another control module on the same part of the CAN network
What you can do
- 1Read the codes in the central electronics control module and other affected control modules and fix them first. Then clear this code
- 2Check that the fuses are intact
- 3Check the connectors on the CAN network for oxidation and loose contacts
- 4Look for chafed wires and use a multimeter to check that the CAN wires have no break or short circuit to each other
- 5If the fault returns: have a workshop with diagnostic equipment check the CAN network and the control modules on it
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.