VOLVO
ECM-360B - Ignition coil cylinder 1. Signal missing
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (9)
- Volvo C30 (2007–2013)2007Engine B5254T3 only
- Volvo C30 (2007–2013)2008–2013Engine B5254T7 only
- Volvo C70 (2006–2013)2006–2007Engine B5254T3 only
- Volvo C70 (2006–2013)2008–2013Engine B5254T7 only
- Volvo S40 (2004–2013)2005–2007Engine B5254T3 only
- Volvo S40 (2004–2013)2008Engine B5254T3, B5254T7 only
- Volvo S40 (2004–2013)2009–2012Engine B5254T7 only
- Volvo V50 (2004–2013)2005–2007Engine B5254T3 only
- Volvo V50 (2004–2013)2008–2012Engine B5254T7 only
What does this fault code mean?
The engine control module has found that the signal from the ignition coil for cylinder 1 is missing. Without a control signal the coil cannot fire its spark reliably, so cylinder 1 can misfire. The fault may lie in poor contact, a break in the wire or in the ignition coil itself.
Possible causes
- Poor contact in the connectors
- Open circuit in the signal wire
- Damaged ignition coil
What you can do
- 1Check that the connector at ignition coil 1 is fully seated and dry and clean
- 2Look for chafing or pinch damage on the signal wire from the coil
- 3Use a multimeter to check that the wire has no break, with the connector unplugged at the coil
- 4Read and clear the code, then road test
- 5If the wire is intact: have a workshop with diagnostic equipment check the ignition coil
Symptoms you may notice2
- Malfunction indicator lamp is on
- Not every cylinder is firing
General guidance for car owners. Diagnosis on the car can point to a different cause.