I had a electrical short somewhere and my running lights do not work so i have to rig up at least my tail lights to be on a switch so the running light part of them work... so people can see me.

i got my back light off but i do not know which wire is the one to turn on the running lights.

there is a yellow, brown, and a black going to the bulbs.

can anyone help me out? i just need to know what does what so i can set up my switch and drive at night!

thank you so much!... really sorry about any spelling!

 

im not sure what year is yours but on mine which is a 98 yellow is the parking lights black is the ground and yellow is the stop/turn signal.info crtsy of alldata

 

You used yellow twice.

I wish I could remember from wiring my tail lights in. If you have a wire tester that's always the easiest way to tell.

 

here ya go.. would be better if we knew the year and all though

 

On my 2001 blazer it is the brown wire on the right rear side that powers the running/tail lamps. The brown wire switches to brown-white as there is a connection plug for the right side just inside the plastic trim panel on the inside of the vehicle near the right side lens assembly.