VOLVO
ECM-P193482 - Vehicle Speed Signal. 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:
12 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (40)
- 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–)2011–2012All engines except: B5254T5, B6304T4, D4162T
- Volvo S60 (2011–)2013All engines except: B5204T8, B5204T9, B5254T12, B5254T14, B6304T4, D4162T
- Volvo S60 (2011–)2014Engine B4164T, B4164T2, B4164T3, B4204T7, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3, D5204T3, D5204T7, D5244T11, D5244T15, D5244T23 only
- Volvo S80 (2007–)2009Engine D5244T10 only
- Volvo S80 (2007–)2010Engine B4204T6, D4164T, D5244T10, D5244T14, D5244T19 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7, D4164T, D5204T2, D5244T10 only
- Volvo S80 (2007–)2012All engines except: B5254T10, B6304T4, B6324S4, B6324S5, D4162T
- Volvo S80 (2007–)2013All engines except: B5254T12, B5254T14, B6304T4, B6324S4, B6324S5, D4162T
- Volvo S80 (2007–)2014Engine B4164T, B4164T2, B4204T6, B4204T7, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S80 (2007–)2015Engine B4164T, D5204T3, D5244T15 only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3, D5204T4, D5204T6 only
- Volvo V40 (2013–)2014Engine B4164T, B4164T3, B4164T4, D5204T4, D5204T6 only
- Volvo V40 (2013–)2015Engine B4164T, B4164T3, B4164T4, D5204T6 only
- Volvo V40 Cross Country (2013–)2013–2014Engine B4164T, D5204T4, D5204T6 only
- Volvo V40 Cross Country (2013–)2015Engine B4164T, D5204T6 only
- Volvo V50 (2004–2013)2011–2012Engine D5204T, D5204T5 only
- Volvo V60 (2011–)2011–2012All engines except: B6304T4, D4162T
- Volvo V60 (2011–)2013All engines except: B5204T8, B5204T9, B6304T4, D4162T
- Volvo V60 (2011–)2014All engines except: B4204T11, B4204T12, B4204T15, B4204T9, B5204T8, B5204T9, B5254T12, B6304T4, D4162T, D4204T5
- Volvo V60 (2011–)2015All engines except: B4204T11, B4204T12, B4204T15, B4204T9, B5204T9, B5254T12, B6304T3, B6304T4, B6304T5, D4162T, D4204T5
- Volvo V70 (2008–)2009Engine D5244T10 only
- Volvo V70 (2008–)2010Engine B4204T6, D4164T, D5244T10, D5244T14, D5244T19 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7, D4164T, D5204T2, D5244T10 only
- Volvo V70 (2008–)2012All engines except: B5254T10, B6304T4, B6324S5, D4162T
- Volvo V70 (2008–)2013All engines except: B5204T9, B6304T4, B6324S5, D4162T
- Volvo V70 (2008–)2014All engines except: B4204T11, B5204T9, B6304T4, B6324S5, D4162T, D4204T5
- Volvo V70 (2008–)2015All engines except: B4204T11, B5204T9, B6304T4, D4162T, D4204T5
- Volvo XC60 (2009–)2010All engines except: B6304T2, B6324S, B6324S2
- Volvo XC60 (2009–)2011–2013All engines except: B6304T4, B6324S4, B6324S5
- Volvo XC60 (2009–)2014Engine B4204T7, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17 only
- Volvo XC60 (2009–)2015Engine B4204T7, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23 only
- Volvo XC70 (2008–)2010Engine D5244T10, D5244T14, D5244T16 only
- Volvo XC70 (2008–)2011Engine D5204T2, D5244T10, D5244T16 only
- Volvo XC70 (2008–)2012–2013All engines except: B6304T4, B6324S4, B6324S5
- Volvo XC70 (2008–)2014–2015Engine D5204T3, D5244T11, D5244T12, D5244T15, D5244T17 only
What does this fault code mean?
The engine control module (ECM) compares vehicle speed with engine torque and with the values reported by the brake control module (BCM) plus those from the transmission control module (TCM) over the CAN network. Although the code is named alive or sequence counter, it concerns the speed signal: it is set when the signal is unreasonable, when it does not match the engine torque, or when the transmission control module's value does not arrive within a set time. The code can only be set once the test has started with the engine running.
Possible causes
- Faulty speed value from the brake control module (BCM)
- Damaged transmission control module (TCM)
- An overarching CAN fault that has disturbed communication between the control modules
What you can do
- 1Check whether any of the codes ECM-U012088, ECM-U000188, ECM-U1A1400, ECM-U000108 or ECM-U000100 is also stored in the engine control module, and investigate those first
- 2Read off the trouble codes in the brake control module (BCM) and remedy them, as this code can only be cleared once the root fault is remedied
- 3Check that the connectors in the CAN network are secure and free from corrosion, and twist and wiggle the cable harness where it can be reached to see whether communication drops out
- 4Check that the control modules on the CAN network receive power supply and ground, as an open circuit there can cause this code
- 5If the fault remains, have a workshop with diagnostic equipment check the CAN communication
Symptoms you may notice2
- Speedometer shows incorrect values or does not work
- Check engine warning lamp lights or behaves abnormally
What the fault can affect2
- The brake control module's (BCM) speed value is only used if it is correct, otherwise a default value is set
- On cars with automatic transmission, a secondary speed signal from the transmission control module (TCM) is used instead
General guidance for car owners. Diagnosis on the car can point to a different cause.