I am trying to locate which fuse is for the back brake lights for at 1997 nissan sentra

https://www.2carpros.com/questions/1996-nissan-maxima-da-brake-light-fuse-located-thanks http://www.fixya.com/cars/t25123741-fix_1997_nissan_maxima_taillights_no

2008 Nissan sentra fuse box location and diagrams

1st check the fuse box. The corresponding fuse for that set of lights could be blown. If so, replace it with one of the same voltage.

If its not blown, next check all the light bulbs and terminals to their sockets. (With the light swithed off...checking solder or crimp connectors for breaks or corrosion)

If these are good, it might be a short in the wires to the lights. That is best fixed by a mechanic.

First check fuse and finally check and test brale light switch (gemnerally located bask top side brake pedal).

you can try and reset your comp, take hot side battery cable loose, hold for 7 seconds, put back on and check, the switch on brake pedal could be bad, also check the fluid, if you had new brake cyc put on make sure they are not leaking, also on older nissian, the emergency brake will sorta fall down, making the light come on, get somebody pull brake, and emergency brake up and hold check and see if light is still on

Turn on the hazard switch to check if the bulbs light up. If they do, the problem is probably with the headlight switch itself.

try the fuses

Every car is different. I'd suggest you check your owners manual, or take it into your local Nissan dealer.

There might be something in the trunk like a cover into the light. If you can, have someone step on the brake pedal, and you watch for any light shining through the back of the trunk (by the lights).

This could be the problem http://z31.com/repairs/brakepedal/ different car same problem i just fixed my sentra based on that link.

Here is where to order the parts to fix it yourself.

http://www.courtesyparts.com/betasite/stopper-rubber-p-365646.html

WD40 is nonconducting so it can't hurt. Also check the wires at the lights for corrosion.