I have a 94 3.8 v6 mustang and my marker lights will come on, and it hard to get them to go off the problem started when i pulled out my abs fuse cause i have a bad abs sensor. Is me pulling the fuse causing the problem or could the switch be going bad or could it be a relay.

 

It's probably a muffler bearing problem or a id10t code issue, I don't know.