Question about 1992 Ford Explorer
In all car electrical systems a fuse is used to protect the brake light electrical circuit. Most cars are equipped with a switch that is connected to the brake pedal lever or arm. The brake light switch rests in the open position and closed (electrical contacts connected) when the brake pedal is activated. The brake light switch is easily adjustable by moving the main switch housing within the metal bracket that holds the switch. Some brake light switches have additional functions such as the cruse control brake sensor and ignition key interlock function which do not affect the brake light function.
I'm assuming that both lower brake lights not working, then...
* Check Brake Light Bulbs: All cars have three brake light bulbs that create the brake light illumination affect. If the lower two bulbs fail no lower brake light operation will occur. I know what you're thinking, you might say two brake lights at once? But in reality one brake light went out at a time and you did not notice. People only tend to notice something when they almost run into the back of your car to help persuade them to inform you the brake lights aren't working. Remove either of the brake light bulbs to confirm the bulb is ok or burned. After the bulb has been removed inspect the filament and replace if failed. If the brake light bulbs are ok continue to the next step.
* Checking the Turn Signal Switch: Most American cars are designed to have the brake light switch wiring intergraded into the turn signal switch. Because the brake light bulb and the turn signal bulb are one and the same the turn signal switch interrupts the brake light circuit and installs the blinker signal circuit when the turn signal switch is activated. If this switch fails it will not allow the brake light signal through to the brake light wiring. To test for this condition a car repair manual is needed to test incoming and outgoing electrical current. If brake light switch power is present at the turn signal switch but not at any outgoing brake light wires the turn signal switch has probably failed.
Also, I suggtes check this PROCEDURE GUIDE to inspect and test this problem.
Posted on Sep 29, 2010
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Posted on Jan 02, 2017
SOURCE: break light problem
If you have a test light, check the brake light switch (usually mounted at the top of the break pedal arm). The switch will have voltage on one wire....when the pedal is pressed, the switch closes the circuit and sends voltage to the other wire connected to the brake lights.
Posted on Jun 30, 2009
SOURCE: 05 chevy aveo brake lights
Check that the brake light switch is properly adjusted. It will be under the dash at the top of the pedal arm near where it is connected at the top. Basically, the switch is depressed when the pedal is at rest and releases when you depress the pedal.
It screws in or out to adjust.
Posted on Aug 05, 2010
SOURCE: MY PEUGEOT 406 2000MODEL. MY
Not too familiar with Peugeot but every car I've worked on has a switch that's actuated by the brake pedal. look up underneath the dash near the brake pedal pivot point with a flashlight you should see a switch that is actuated when you push the brake. you may have a bad switch or wire, easy to check with a volt/ohm meter. it may even be misaligned. This can can also stop your shifter from moving out of park. If your brake lights don't come on one of the above is your problem. Hope this helps.
Posted on Sep 07, 2011
hi itake u have also checked all the bulbs as they can all blow from a slight over charge also u might want to check the brake switch which is under the dash activated by your foot brake peddle lever theirs a small slide button the opens when the peddle is pressed check that its not sticking
Posted on Sep 13, 2011
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