Hi, I have a 2000 Dodge Dakota and was woundering if any one has ran into this issue before. My fog lights are staying on when I turn off the truck and the switch. Ive pulled the relay and they are still on. I also see the light on the switch staying on telling me my fog lights are still on when the switch is off.

Does the headlight switch also control the fog lights? I know it does in the 99. If so, you will probably have to replace the headlight switch in the cab and it should take care of the problem.

check your wiring and make sure that you don't have a bare wire in contact with the frame, this will cause a short and fog lights will stay on. Did you install the foglights or are they stock?
When I help my friend install aftermarket fog lights on his 98 Dakota, we had a similar problem, the foglights would turn on even if the the truck was turned off. We fixed this by keep the braket from grounding to the frame.

When my daytime running lights were stuck on, I had to unplug this connector that was located on the inner driver-side fender. It's about the only plug connector mounted on the inner fender itself. This is on my Ram, not a Dakota, but it is a start of advice for you anyway. Good luck.