mk3 mondeo brian

if the gem sees there is power there, remember that you need to have the engine running for it to come on first

once it's on check the wires to see that there is power going through them

most likely cause is the connectors at the bottom of the screen going fuzzy and not letting any power through, but you have obviously checked that these work and that the wires haven't chaffed through ont he bonnet and stuff yes?