MK2 Focus - all electrics cut off

[AllyBassman]

Hi All,

Our MK2 Ford Focus 1.6 Shed has developed a strange fault,

Sometimes upon turning the key, all the electrics will cut out to the car. The cluster goes blank - nothing will work.

The only thing that seems to fix it is to disconnect the battery and then reconnect it.

immobiliser / alarm fault? Or something else?

all ideas much appreciated!

[AllyBassman]

I've read about some issues under the dash - hoping it's not that.

All of the electrics die - the car looses all electrical power - disconnecting and then reconnecting the battery restores it - car runs fine apart from that.

Very odd.

[AllyBassman]

Thanks all - in typical fashion it's not done it recently. I will check all of the battery connections + grounds.