Focus DV6 - Battery Voltage Too High in FACM

[Toms306]

Hi guys,

So a few weeks ago I had a DPF code come up again, uh oh... But it seems to have just been a one-off, a lot of town driving or slow arses causing failed regens I guess. So far it hasn't come up again but I'm checking weekly.

However I'm getting this recurring fault coming up with the FACM (fuel additive control module) of battery voltage too high. This was coming up before changing the DPF also but not as often. There is plenty of additive in the tank and it appears to be dosing correctly.

Any idea what can cause this? If the alternator was over-charging surely that would affect all modules, not just one!? Also I know the smart charge does charge over 14v if necessary, but urely they wouldn't allow it to overcharge to the point of damaging anything!!



Cheers
Tom