VOLVO
ECM-U210882 - Adaptive Cruise Control. Bus Signal / Message Failures. Alive / sequence counter incorrect / not updated
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (33)
- Volvo S60 (2011–)2011All engines except: B5254T5, D4162T, D5204T2, D5244T10
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7, B6304T4 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3, B6304T3, B6304T4, B6304T5 only
- Volvo S80 (2007–)2007Engine B6324S, B8444S only
- Volvo S80 (2007–)2008–2009Engine B6304T2, B6324S, B8444S only
- Volvo S80 (2007–)2010Engine B4204T6, B6304T2, B6324S, B6324S2, B8444S only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7, B6304T4, B6324S4, B6324S5, B8444S only
- Volvo S80 (2007–)2012All engines except: B5254T10, D4162T, D5204T3, D5244T11, D5244T15
- Volvo S80 (2007–)2013–2014Engine B4164T, B4164T2, B4204T6, B4204T7, B6304T4, B6324S4, B6324S5 only
- Volvo S80 (2007–)2015Engine B4164T, B6304T4, B6324S4, B6324S5 only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011All engines except: D4162T, D5204T2, D5244T10
- Volvo V60 (2011–)2012All engines except: D4162T, D5204T3, D5244T11, D5244T15
- Volvo V60 (2011–)2013–2014Engine B4164T, B4164T2, B4164T3, B4204T7, B6304T4 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3, B6304T3, B6304T4, B6304T5 only
- Volvo V70 (2008–)2008–2009Engine B6304T2, B6324S only
- Volvo V70 (2008–)2010Engine B4204T6, B6304T2, B6324S, B6324S2 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7, B6304T4, B6324S5 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7, B6304T4, B6324S5 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2, B6304T4 only
- Volvo XC60 (2009–)2009Engine B6304T2 only
- Volvo XC60 (2009–)2010All engines except: D5244T10, D5244T14, D5244T16
- Volvo XC60 (2009–)2011All engines except: D5204T2, D5244T10, D5244T16
- Volvo XC60 (2009–)2012All engines except: D5204T3, D5244T11, D5244T15, D5244T17
- Volvo XC60 (2009–)2013–2015Engine B4204T7, B6304T4, B6324S4, B6324S5 only
- Volvo XC70 (2008–)2008Engine B6324S only
- Volvo XC70 (2008–)2009Engine B6304T2, B6324S only
- Volvo XC70 (2008–)2010Engine B6304T2, B6324S, B6324S2 only
- Volvo XC70 (2008–)2011–2015Engine B6304T4, B6324S4, B6324S5 only
- Volvo XC90 (2003–)2007–2010Engine B6324S only
- Volvo XC90 (2003–)2011–2014Engine B6324S5 only
What does this fault code mean?
The engine control module (ECM) continuously receives signals from the central electronic module (CEM) over CAN that cover the steering wheel controls for adaptive cruise, and checks the communication. Although the fault is named a sequence counter problem, the code is set when communication with the CEM is lost. After the ECM has been reloaded or the battery has been disconnected, press the brake pedal down twice for about two seconds to activate cruise control.
Possible causes
- Open circuit in the communication cable
- Communication cable short-circuited to ground
- Communication cable short-circuited to supply voltage
- Contact resistance or oxidation in the connections
- Open circuit in the connections
- Short-circuit in the connections
What you can do
- 1Read the fault codes in the engine control module. If any of ECM-U012088, ECM-U000188, ECM-U1A1400, ECM-U000108 or ECM-U000100 is stored, check it first.
- 2Read the fault codes in the CEM and remedy them first. Do not replace the CEM for a CAN fault unless troubleshooting shows an internal fault.
- 3Check that the connectors in the CAN network between the engine control module and the CEM are secure and clean, and look for chafed wiring.
Symptoms you may notice2
- Cruise control does not work at all
- Cruise control cannot be engaged
What the fault can affect1
- Cruise control is turned off while the fault is active
General guidance for car owners. Diagnosis on the car can point to a different cause.