Probably unrelated but I have just had a 05 Focus in where the tailgate wouldn't release by the switch between the No plate lights but would open via key fob, It also lost its indicator and Hi beam tell tale lamps on the dash and finally the brake warning lamp and the interior lamp stayed on. The fault was that under the fuse box in the passenger foot well there is two multi plugs they both have the push clip and lock feature. It appears that the passengers feet can push these clips that dislodges the mutliplug from the fuse box causing the above problems. Its a bit of a silly idea as the clip unlocks going from back to front if it had been the other way you couldn't accidently dislodge them.