Question about 2005 Nissan Sentra
Keep in mind that the brake lights are in a different circuit than the tail lights and the signal lights, so checking that those work will only serve to tell you that those circuits and their respective switches are operational. So make sure that you changed the right fuses and the right bulbs just in case.
Right along the top of the brake pedal, and under the dash, there is a small spring loaded switch that controls the activation of your brake lights. Different car manufacturers use different style switches, but the one I have seen the most is the reverse style, where the switch is spring loaded and closes the circuit when it is pulled out by the spring (an action that the pedal is allowing when you press it...). When the pedal is pressed, the switch extends and the circuit closes. When the pedal is released, the switch is pressed and the circuit opens. If this switch is out of place, out of alignment or physically broken, the brake lights will either not operate at all, or stay lit all the time.
It sounds like you are handy enough to check this with a voltmeter (since you changed the light bulbs and the fuses). Just set your voltmeter to 20 volts dc and check the voltage at the switch itself. If no voltage at all, it is time to take it to a mechanic (unless you want to pull out the dash, and experiment with the wiring..)
Or, you can take this to your local mechanic if you don't feel confident with using a voltmeter.
Posted on Jun 16, 2009
Check for lose wiring or a brake light switch connected to the master cylinder.
Posted on Jun 16, 2009
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Posted on Jan 02, 2017
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Mar 11, 2014 | 2005 Dodge Ram
Turn signal tail lights and BRAKE LIGHTS NOT WORKING
can be faulty brake light switch causing the problem or its blown brake light bulb.
First check and confirm brake light lamp is working and that's not
For turn signal not working it can be faulty turn signal switch or its issue with wiring:----
trouble shoot brake and turn signal related problem, check the help links mentioned
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