I have a 2000 Discovery and the cigar lighter outlet is dead, I use it to power my gps. I have no 12v back to the firewall and wonder where a fuse might be located in the circuit. It is on a Frieghtli...
I know on mine when the fuse was blown it was because of the nut on the back of the lighter became loose and shorted across the terminals.Yours may be different but my fuses were located under a cover on top of the dash on the drivers side. Hope this is of some help. Jim