General Vehicle engine cut out caused by loss of all electrical power but restarted ok with key after pulling over

[trekkingnut]

I was driving along today , luckily on a quiet and very straight B road when the engine suddenly died and I noted that the dash illumination/odemeter/radio went off too suggesting electrical power interruption as the cause. Was able to pull over safely due to road conditions but could have been terrifying on a motorway or bendy road under busier conditions so am wondering if anyone has had the same thing happen and what the issue was? I will of course check battery connections and earth first but this has never happened before and am of course concerned it will happen again under less safe circumstances. Garage has no idea other than checking battery connections but I had a Peugeot Partner 2.0hdi once which did the same thing and that was a hidden multiplug connector that was the cause so hoping similar thing here. Ultra reliable car otherwise.

 

[the green vanper]

Yes, looking at the symptoms it could be a short circuit. Production year and engine of the car should help to post more precise suggestions.

Have you tried to read the errors with MES or AlfaOBD? You shall probably find some hints over there.

 

[varesecrazy]

Worth replacing the Battery to Chassis to Motor cable, they can rot internally