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Re: Back brake lights - all 3 - stay on.
The brakelight switch is bad or mis-adjusted,if you look with a light,follow the brake pedal upward towards the dash,you will see it mounted on a bracket so when the brake pedal is depressed the plunger on the switch pops out allowing power thru it,so do a visual and move the pedal so you can see where it stops on the pedal arm,let me know if you need more info but Im sure you can do it!have a good day DB
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The only thing I can think of is a short in wires. It would be on the back side of the brake switch. That wire has some how come in contact with the ignition run wire. But for that to happen, when you start the car and it is running, the brakes lights in back would be on. Or could be really dim. Are they?
Their is switch the brake switch its on the brake pedal up high .
It sounds like its working because the lights work .
However it dose have an adjustment on most of them ware you can move the switch in or out so it olny makes contact when you touch the pedal with your foot .
This sounds like you need to back the contact out a little its a nut 1/2 turn should do it .
Its usely vary simple take a look at it even if you need to replace it it is an 88 its inexpensive and not hard to do .
If the brake lights stay on even if the car is turned off (or even if it is on) the first thing I would be checking is the brake pedal switch under the dash. Brake lights are activated when the brake pedal is depressed and comes off the switch or the return spring is broken or stretched not allowing it to fully return when foot is taken off the brake pedal.
Are you talking about the brake lights in the back, or the brake warning light on the dash ? If the warning light is on, have you checked the fluid level in the master cylinder ? Is the parking brake on ?
Remove the negative terminal on the battery using a wrench. Look up under the dash and follow the brake pedal arm up to the switch. Pinch the tabs and pull the electrical plug out of the brake light switch.
Remove the nut closest to the brake pedal arm using a socket. This allows the switch to be removed from the bracket.
Install the new switch by adjusting the rear nut, closest to the electrical plug, back toward the plug until it is a few threads away from the plug. Remove the front nut closest to the button. Push the switch into the bracket with the button facing the brake pedal arm. Install the nut on the button side of the switch.
Push the switch in until it contacts the arm and depresses the button. At this point, use your fingers to turn the front nut back until it contacts the bracket, keeping the switch from pushing back out of the bracket. Adjust the nut as necessary to assure the button is depressed against the brake pedal arm without moving the arm. Run the rear nut up to the bracket to lock the switch in place. Tighten the rear nut with a wrench.
Install the electrical plug on the brake light switch. Install the negative terminal on the battery, and tighten with a wrench
Assuming there is nothing wrong with the Brakes, and that the Brake Pedal does not have the "play" you describe: There is a Push Brake Light Switch located up behind the Brake Pedal Arm. It is a Push actuated with a Plunger being pushed in activating the Brake Lights. Follow the Brake Pedal Arm up into behind the Dash. The Switch is adjustable and removable. There are two nuts on this Switch, holding and securing the Switch to a bracket. The Switch itself screws in/out of the bracket after the nuts have been loosened. Unplug the Switch. The nuts need to be loosened. The Switch in your case will need to be unscrewed out of the bracket moving the Plunger away from the Brake Pedal Arm. In some cases this Plunger is already all the way OUT (with it plugged back in) and the Brake Lights will stay on. In this case the Switch has to be replaced. It will also need to be replaced if the plunger is stuck in the "in" position. The Plunger is retrned to the "out" position by a spring, which maybe malfunctioning. WITH a helper looking at the Brake Lights and the Switch plugged back in: Adjust (screw out) the Switch in the Bracket so that the Brake lights to go out. Again if the adjustment does not solve it, remove and replace this Switch. Once that adjustment is complete, turn the locking nuts on the Switch - securing it in place. This Switch is available at Autozone Part #80172 for about $15.
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!
It sounds like the brake switch on the brake pedal arm is stuck its like a push button type switch when you press the brake pedal down it pushes the button in on the switch which makes the brake lights come on,when you take your foot off the brake pedal the button is supposed to come back out if it doesn't the brake lights will stay on.
There may be TWO switches under the dash on the drivers side, that work off of the brake pedal. Doesn't seem to make sense, but one is the regular switch, and the other one just goes to the brake bar over the back window.