VOLVO
ECM-0A10 - Transformer. Signal too high
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (6)
- Volvo C30 (2007–2013)2007–2010Engine D4204T only
- Volvo C70 (2006–2013)2008–2010Engine D4204T only
- Volvo S40 (2004–2013)2004–2006Engine D4204T, D4204T2 only
- Volvo S40 (2004–2013)2007–2010Engine D4204T only
- Volvo V50 (2004–2013)2004–2006Engine D4204T, D4204T2 only
- Volvo V50 (2004–2013)2007–2010Engine D4204T only
What does this fault code mean?
The ECM has detected an internal fault in the voltage transformer that powers the piezo-electric injectors. The code is set when the fault lies in that part of the control module. The fault may light the check engine lamp.
Possible causes
- Damaged engine control module (ECM)
What you can do
- 1Have a workshop check that the engine control module has the latest software and reload it if needed
- 2Check the battery condition and that the battery terminals are tight, since voltage disturbances can affect the module
- 3If the fault persists after the software check, the engine control module is probably damaged and a workshop should replace it
Symptoms you may notice1
- Check engine lamp lit or behaving abnormally
General guidance for car owners. Diagnosis on the car can point to a different cause.