How do I fix a brake light problem with the multifuction switch?

The electrical systems on these vehicle are quite complex. They are Multiplexed systelms which are voltage sensitive. The multifunction switch does just what the name implies. It has many functions, Turn signals, High beams, hazard flashers etc. I suggest you visit your local dealership for Inspection and diagnosis. http://repairpal.com/chrysler-repair-in-shreveport-louisiana