brake light trouble

[82k20]

okay my 82 k20 has a problem that has me lost someone down the line tried to install a brake booster box only to leave the wiring hashed im not using the booster so im trying to figure out the wiring there are 2 green wires and a black wire the black has power to it ive tried tying the 2 greens together i get no lights if i wire a green to the black they stay on all the time (both greens do this ) im not good with electrical at all so any help is needed i also cant seem to find a wiring diagram either

 

[chengny]

Forget about the green and black wires - they were added for the electric brake controller. You would be wise to trace the black wire (the one that is hot) back to were it is getting power and disco it.

The stock wires to the brake switch are orange and white. The orange comes from the fuse block and the white wire leads out of the steering column.

Locate the brake light switch (you probably already know where it is). There should be an orange and white wire somewhere in the vicinity. They will most likely be spliced and branched off. When you find them, remove any add-on wires that went to the old brake controlller.

The rest should be easy. Re-connect the orange and white wires to the switch - if they are not already connected.

A visual to help explain:

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[John-e Bravada]

My brake lights arne't working and I was wondering if they were fed off of a pressure switch or off one of the 2 micro switches on the pedal arm. I'll check the pedal arm for the orange and white wired one.

Thanks.