I HAVE A 2000 ESCALADE I JUST BOUGHT. THE HEAD LIGHTS WERE WORKING THEN AFTER A COUPLE OF WEEKS THEY STOPED. I HAVE HAD THE LIGHTS CHANGED THE FUSES , THE LAMPS GONE THUR EVERYTHING I THOUGHT IT COULD BE BUT STILL NO HEAD LIGHTS. THE BRIGHTS WORK AS DO THE RUNNING AND FOG LIGHTS . ANY ONE KNOW OF ANY TRICKS :bonkers: