Lighting prblem The third brake light and the reverse ligths don`t seem to work. I have changed the bulbs and the fuses but they still don`t work.Do you have any suggestions?

Did you check to see if there is a fuse on the brake lights circuit?

If you changed the lamps and the brake switch it is obvious that they are not being energized.

seems you have several different problems. High beam working and no low beams=dimmer switch is bad. Reverse lamp not working=bulb socket bad,wiring broke,bad ground at back
Brake light on drivers side stuck on=brake light switch

as for the reverse lights if the bulbs are good and they are getting power it sounds like your backup switch in the transmission went out

Get a test light and check for power. If you got power check the ground, and the contacts, if not follow the hot wire back to the brake switch to locate the short.

I don't believe there is a separate fuse for the high-mount brake light. Never was on older cars, that brake light is just spliced into the rear brake lights. Have you checked the bulb?

You have a failed brake lamp relay,this is located at the back right hand in the trunk at the quater panel.

you should check the brake and reverse bulbs first..

GROUND WIRE IS NOT GROUNDED

This sounds like a bad brake light switch, this switch is located on the bracket that holds brake pedal,you can test for power at switch,also if you remove connector and jump terminals with a wire and see if lights lite, if lights light then switch is bad,

Hi
You may just have a bad earth in wiring on the lighting or your light control modual could be fuilty has any one tested this for you
Paul