Here's another hint on the electrical problem I've been having....Took the Lincoln to upstate NY this past week,,,just got home today. Once I knew I was going to make it home ok....NO prob on the trip up OR back - until I tried this.
Just before going into the Baltimore Harbor Tunnel (5 miles from home) , I switched on the AUTO-HEADLIGHTS. Went into the tunnel and a when the headlights were supposed to come on, bam! Electrical failure!
Drove home, parked it in driveway, pulled the ground side cable off battery.... unloaded car, sorted the mail, went back out reconnected the ground cable - - everything works!
Now it the problem the headlight switch (auto lamp side)?, the HIDS? Or possibly the SCIL module?