In the winter time my left side would stop working when the brake pedal is pushed....my tail light (wiring harness) connector was corroded pretty bad, I'd clean it up and it'd work for a week or so then I just conneted the ground wires via a jumper wire and it works fine now.....maybe check your electrical connetctor at the tail lights and check/clean your grounds




....and the passengers side....
.....both wires are conected to a sanded bare spot below the trunk latch.....what's the chances yours are corroded in the front sockets ?

