VOLVO
ECM-P06204B - Generator Control Circuit. System Internal Failures. Over temperature
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (13)
- Volvo S60 (2011–)2011–2014Engine B6304T4 only
- Volvo S60 (2011–)2015Engine B6304T3, B6304T4, B6304T5 only
- Volvo S80 (2007–)2007Engine B6324S, B8444S only
- Volvo S80 (2007–)2008–2009Engine B6304T2, B6324S, B8444S only
- Volvo V60 (2011–)2011–2014Engine B6304T4 only
- Volvo V60 (2011–)2015Engine B6304T3, B6304T4, B6304T5 only
- Volvo V70 (2008–)2008–2009Engine B6304T2, B6324S only
- Volvo XC60 (2009–)2009–2010Engine B6304T2 only
- Volvo XC60 (2009–)2011–2015Engine B6304T4 only
- Volvo XC70 (2008–)2008Engine B6324S only
- Volvo XC70 (2008–)2009Engine B6304T2, B6324S only
- Volvo XC90 (2003–)2005–2006, 2011Engine B8444S only
- Volvo XC90 (2003–)2007–2010Engine B6324S, B8444S only
What does this fault code mean?
The alternator control module (ACM) reports to the engine control module over LIN that the alternator temperature is too high, and the fault is then set. This can be caused by air being unable to pass to and from the alternator, or by a damaged alternator. The electric cooling fan may then run all the time while the engine is running.
Possible causes
- The air intake and/or air outlet to the alternator is blocked
- Damaged alternator
What you can do
- 1With the ignition off, look for anything blocking the air intake or the air outlet at the alternator
- 2After a test drive: read the fault status with a diagnostic tool and see whether the code is still present
- 3If the fault returns after driving: have a workshop try a new alternator
Symptoms you may notice1
- The electric cooling fan runs all the time while the engine is running
General guidance for car owners. Diagnosis on the car can point to a different cause.