I have a very annoying couple of electrical gremlins. The first one to appear was when I steped on the brakes in addition to Brake lights my running lights are turning on along with my interior insturment lights. The Next one is when I use my right turn signal my left signals flash except the bumper mounted signal. Everything else functions normally I have no burned out or bad blubs that I can find(I pulled bulbs in 8*F because I was tired of it the other day). So I have my multi meter handy and if someone can point me at a wiring diagram or fuse box I would appreciate it. Other extraneous info about my trucks wiring. It has a dealer installed security system but I don't think it operates the affected lights(I'm going to set it off and dbl check). There are no other wiring mods to the truck though my trailier pig tail(factory installed) has been not working completely for a bit(R Turn, R Brake where non op)I haven't had time or want to completely invesitgate it. So Could it be related to that? anyways any leads are appreciated.

Thanks