ok , lets start here , there is one red wire from the fuse box to the headlight switch ,the parking lamp circuit is a brown wire and runs to the interior light and to the rear and splits off to the tail lamps,
i would pull the courtesy lamp fuse and see if the park lamps go out if they go out there is a problem inside like a short in the dome lamp
but either way there is a short to ground powering the park lamp circuit through the switch at all times
do you have a hitch and wiring if so check the brown wire there ive seen them rub the frame before ,
let me know
Feb 19, 2007 at 4:40 PM