VOLVO
ECM-U012987 - Lost Communication With Brake System Control Module. Bus Signal / Message Failures. Missing message
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
14 modelsC30 (2007–2013), C70 (2006–2013), 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–), XC90 (2003–)
Show models by year and engine (41)
- Volvo C30 (2007–2013)2011–2013Engine D5204T, D5204T5 only
- Volvo C70 (2006–2013)2011Engine D5204T, D5204T5 only
- Volvo C70 (2006–2013)2012–2013All engines except: B5254T7
- Volvo S40 (2004–2013)2011–2012Engine D5204T, D5204T5 only
- Volvo S60 (2011–)2011Engine B5254T5, B6304T4, D5204T2, D5244T10 only
- Volvo S60 (2011–)2012Engine B5254T5, B6304T4, D5204T3, D5244T11, D5244T15 only
- Volvo S60 (2011–)2013All engines except: B4164T, B4164T2, B4164T3, B4204T7, D4162T
- Volvo S60 (2011–)2014Engine B5204T8, B5204T9, B5254T12, B5254T14, B6304T4, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S60 (2011–)2015All engines except: B4164T, B4164T2, B4164T3, B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4162T, D4204T5
- Volvo S80 (2007–)2010Engine B6324S, B6324S2, D5244T10, D5244T14, D5244T19 only
- Volvo S80 (2007–)2011Engine B6304T4, B6324S4, B6324S5, D5204T2, D5244T10 only
- Volvo S80 (2007–)2012Engine B6304T4, B6324S4, B6324S5, D5204T3, D5244T11, D5244T15 only
- Volvo S80 (2007–)2013–2014Engine B6304T4, B6324S4, B6324S5, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S80 (2007–)2015Engine B6304T4, B6324S4, B6324S5, D5204T3, D5244T15 only
- Volvo V40 (2013–)2013All engines except: B4164T, B4164T3, D4162T
- Volvo V40 (2013–)2014All engines except: B4164T, B4164T3, B4164T4, D4162T
- Volvo V40 (2013–)2015Engine B5204T8, B5204T9, D5204T6 only
- Volvo V40 Cross Country (2013–)2013–2014All engines except: B4164T, D4162T
- Volvo V40 Cross Country (2013–)2015All engines except: B4164T, B4204T11, D4162T, D4204T14
- Volvo V50 (2004–2013)2011–2012Engine D5204T, D5204T5 only
- Volvo V60 (2011–)2011Engine B6304T4, D5204T2, D5244T10 only
- Volvo V60 (2011–)2012Engine B6304T4, D5204T3, D5244T11, D5244T15 only
- Volvo V60 (2011–)2013All engines except: B4164T, B4164T2, B4164T3, B4204T7, D4162T
- Volvo V60 (2011–)2014All engines except: B4164T, B4164T2, B4164T3, B4204T11, B4204T12, B4204T15, B4204T7, B4204T9, D4162T, D4204T5
- Volvo V60 (2011–)2015All engines except: B4164T, B4164T2, B4164T3, B4204T11, B4204T12, B4204T15, B4204T9, D4162T, D4204T5
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2010Engine B6324S, B6324S2, D5244T10, D5244T14, D5244T19 only
- Volvo V70 (2008–)2011Engine B6304T4, B6324S5, D5204T2, D5244T10 only
- Volvo V70 (2008–)2012Engine B6304T4, B6324S5, D5204T3, D5244T11, D5244T15 only
- Volvo V70 (2008–)2013All engines except: B4164T, B4164T2, B4204T7, B5204T9, D4162T
- Volvo V70 (2008–)2014All engines except: B4164T, B4164T2, B4204T11, B4204T7, B5204T9, D4162T, D4204T5
- Volvo V70 (2008–)2015All engines except: B4164T, B4164T2, B4204T11, B5204T9, D4162T, D4204T5
- Volvo XC60 (2009–)2009
- Volvo XC60 (2009–)2010All engines except: B4204T6
- Volvo XC60 (2009–)2011–2012All engines except: B4204T6, B4204T7
- Volvo XC60 (2009–)2013All engines except: B4204T7
- Volvo XC60 (2009–)2014–2015All engines except: B4204T10, B4204T11, B4204T12, B4204T15, B4204T7, B4204T9, D4204T5
- Volvo XC70 (2008–)2010All engines except: B6304T2
- Volvo XC70 (2008–)2011–2013
- Volvo XC70 (2008–)2014–2015All engines except: B4204T11, D4204T5
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The brake control module (BCM) requests extra torque from the engine over CAN when slip is detected. The code is set when the engine control module does not receive that request when it is expected. The code is a follow-on fault from a code in the brake control module, so the root fault should be fixed first.
Possible causes
- Fault in the brake control module (BCM), which should be checked first
- Break in one of the CAN network 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
- 1First read the codes in the brake control module and fix them. Then clear the code in the engine control module
- 2Check the CAN network wiring for chafing and loose contacts, and use a multimeter to check for breaks or short circuits
- 3Check that the fuses for the brake control module are intact
- 4Do not work on the braking system yourself. If it returns: have a workshop with diagnostic equipment check the brake control module and CAN network
Symptoms you may notice1
- Warning symbol and text message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.