VOLVO
ECM-354B - Ignition coil cylinder 5, signal. Signal missing
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (13)
- Volvo S60 (2001–2009)2005–2006Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 only
- Volvo S60 (2001–2009)2007Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo S60 (2001–2009)2008–2009Engine B5204T5, B5244T5, B5254T2 only
- Volvo S80 (1999–2006)2005–2006Engine B5204T5, B5244T4, B5254T2 only
- Volvo V70 (2000–2008)2005Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 only
- Volvo V70 (2000–2008)2006–2007Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo V70 (2000–2008)2008Engine B5254T2 only
- Volvo V70 XC / XC70 (2001–2007)2005All engines except: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Engine B5244T4, B5254T2 only
- Volvo V70 XC / XC70 (2001–2007)2007Engine B5254T2 only
- Volvo XC90 (2003–)2005–2012Engine B5254T2 only
- Volvo XC90 (2003–)2013–2014Engine B5254T9 only
- Volvo XC90 (2003–)2015
What does this fault code mean?
The engine control module has detected that the signal to the ignition coil for cylinder 5 is missing. Without a signal the coil does not get the control it needs, so cylinder 5 is not fired properly and the engine can misfire. The fault can come from poor contact in the connectors, a break in the signal wire or a damaged ignition coil.
Possible causes
- Contact resistance in the connectors
- Break in the signal wire
- Damaged ignition coil
What you can do
- 1Check that the connector at ignition coil 5 is fully seated and clean, without corrosion or oxidation
- 2Follow the signal wire from the coil and look for breaks, chafing or places where it has been kinked
- 3Use a multimeter to confirm that the signal wire is continuous, not broken, with the connector unplugged at the coil
- 4Read and clear the code, then road test to see whether it returns
- 5If the wire is intact: have a workshop with diagnostic equipment check the ignition coil
Symptoms you may notice2
- The malfunction indicator lamp is on
- Cylinder 5 is not firing properly
General guidance for car owners. Diagnosis on the car can point to a different cause.