none of the both rear marker lamps and one license lamps seem to be working I have changed the bulbs on both the rear marker lamps and still seem to have this problem.
I presume you are in USA since you refer to marker lamps. Do you get any bulb failure messages ? Did you use Merc bulbs or just some aftermarket ones - I ask because wrong bulbs will confuse the bulb failure detection and then the control unit will turn off power to the bulbs.
