by Si_Crewe » Fri Jan 27, 2017 4:45 am
I would have suggested the Alternator but presumably the diagnostic machine would be able to differentiate between that and a "motherboard or instrument panel" fault.
Honestly, I'm a bit dubious of that diagnosis. I can't really see how the ECU or the instrument panel, themselves, would use enough leccy to drain a battery overnight, unless it's keeping something else running even after the ignition is off.
I would have suggested the Alternator but presumably the diagnostic machine would be able to differentiate between that and a "motherboard or instrument panel" fault.
Honestly, I'm a bit dubious of that diagnosis. I can't really see how the ECU or the instrument panel, themselves, would use enough leccy to drain a battery overnight, unless it's keeping something else running even after the ignition is off.