VOLVO
ECM-P062001 - Generator Control Circuit. General Failure Information. General electrical failure
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 engine control module controls the alternator charging over LIN and CAN, and receives fault reports from the alternator control module (ACM). The fault code is set when the ACM reports an electrical fault in the alternator. Causes can be worn carbon brushes in the alternator, a damaged charge regulator in the ACM, or an alternator that has been affected by a charger with too high a charging voltage.
Possible causes
- A battery charger that gave too high a charge voltage was hooked up earlier
- Worn carbon brushes
- Damaged alternator control module (ACM), or its charge regulator
- Damaged alternator
What you can do
- 1Has anyone previously connected a battery charger with too high a charging voltage to the car? If so, the fault code may have been stored because of that
- 2Have a workshop check the alternator's carbon brushes and slip rings, and if they look good, have the workshop decide whether the charge regulator in the ACM is at fault
- 3If you have a diagnostic tool: read the fault status after the repair and check that the fault is no longer active
- 4If the fault remains after these checks: have a workshop replace the alternator or the ACM
Symptoms you may notice2
- The battery discharges
- The charging warning lights up or behaves abnormally
General guidance for car owners. Diagnosis on the car can point to a different cause.