Resetting Computer and Adaptive "memory"
05 5.4l 3v s.crew lariat
Joined: Oct 2009
Posts: 3,505
Likes: 672
From: fl
Negative terminal still attached to frame
Battery negative can't feed into it but headlights still apply a load from positive to negative lead so it shorts out any remaining capacitor charge that may be there . Same as touching leads together .