It runs along side the drivers door just under the plastic moulding from the front (near to the fuse box, all the way into the trunk (somewhere) it's BLUE Light blue, It was severed up at the fuse box area somehow.. Is this the fuel pressure Switch wire? anyone?

 

The only light blue wire offhand I can think of on a T/A that runs to the back would be the brake light wire. Have you checked to see if your brake lights are working lately ?

I only say 'I can think of' is because the diagram I have over at my friends house shows a lt blue wire running to the rear harness then looping back up to the turn signal sw on a white wire.