I have tail lights and reverse lights and tun signals. But no brake lights across the back. The little on in the rear window works though.

brake lights not working - 1997 GMC Jimmy - RepairPal

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Jan 11, 2011 - hi about 2 days ago i realized my brake lights were not working but my turn signal lights were working and parking lights as well but no brake ...

Tail Lights don't work but third brake light does, not fuses ...

answers.edmunds.com > Edmunds Answers

Sep 23, 2009 - 97 GMC Jimmy 4x4 blinkers work, reverse lights work, above window ... I just lost hazard lights and rear brake lights, they were working 2 days ... If it is a frayed wire or solder point, then you can repair it, but not any worn contacts. ... Does anyone have any suggestions on 1997 Honda Accord tail & brake lig.

1) Open trunk
2) Remove small round plastic access panel with a flat tip screw driver by prying open
3) Remove flat tip screw holding tail light assembly
4) Remove tail light assembly by pulling outward, careful not to break plastic guide/nub
5) Disconnect wiring connectors
6) Remove plastic housing access plate on back of tail light assembly by twisting/turning tabs until they click and then lift access plate from tail light assembly
7) When viewing the the bulbs, the turn signal bulb is the bottom left bulb
8) Install in reverse order, ensuring tail light seal seats properly during installation

it all points to a fault with a common ground. Find earthing points

if rear window stop light works has blown globes in other 2 tail and stop are different circuts fit 2 new globes only go in 1 way

Check BackUp Module, generally is located in the rear quarter panel (drivers side).

This will either be a fuse or the brake light switch which is on the pedal it's self. More likely the switch as these are fickle at best.

pull your turn signal switch all the way back and hold it like your turning on the brights now hit your brake lights did they light up more than likely yes your problem is your turn signal switch.

try replacing the turn signal switch, as the brake/tail lights are all routed thorough it. common problem with most 90's GM cars. this may help, but I've never seen only the third light work. sounds more like wiring has been tapped into incorrectly. good luck

test and replace the brake light switch, it is located at the top of the arm the brake pedal is attached to.

to ss1957, i have exactly the same problem as yours. At first i thought the bulbs of both side are okay because the filaments (there's two on each) are intact. It turned out that they're not. The brake lights came back as soon as I replaced the bulbs.