zetec - Ford Focus has many problems ???? - divades

I am having problems with my car. My interior light, electric mirrors, rear/front windscreen heaters, front intermittent wiper, rear wiper and warning lights alarm have all stopped working. I have also noticed when sometimes i change gear the car jerks and the radio goes very loud just for a split second. The warning door light sometimes flashes and the central locking can lock and unlock whilst i am driving. Has anybody got any ideas please!!!!!!

zetec - Ford Focus has many problems ???? - elekie&a/c doctor

Most of these functions are controlled by the central electric module.(known as the Gems unit).This is unlikely to be at fault but there may be a problem with voltage surge causing the unit to shut down.I would suggest get the battery and charging/alternator systems tested.Also check power and earth leads from battery to chassis.hth

zetec - Ford Focus has many problems ???? - divades
thanks for your advice, can you tell me were i could go to get them tested or can i call a mobile diagnostics to check for problems ??