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Anonymous Posted on Apr 16, 2013

Brake light switch - 1999 GMC Yukon

  • Anonymous Apr 16, 2013

    I feel like an idiot i didn't post all the question, see the issue is I have a draw tite 5100 well without it there are no brake lights on my truck all fuse have been replaced with new .. when i disconnect the draw- tite an press the brake pedal I have nothing. but when the draw-tite is connected an i hold the activator push in the truck has brake lights .. could it be the switch under the dash...

  • Anonymous Apr 18, 2013

    Hi dear you dnt have to feel like an idiot no one is perfect in this world anyway plz unplug the switch on brake pedal and get a small wire to connect two wires going to the brake switch pedal if u get the stop lights going then replace the switch otherwise maby show it to some one thnx.

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  • Posted on Apr 16, 2013
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Joined: Apr 16, 2013
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Hi for for your brake light on there some options low Brake Fluid, Hand brake switch, Low pads.

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1answer

Third eye works no rear signal or brake lights

The high mount brake light gets its own signal from the brake light switch (on the brake pedal). Or at least the wire leaving the brake light switch will splice, one wire to the high mount brake light, and the other for the rear brake lights is routed through the turn signal switch, and coordinated there with the turn signal wires to the rear brake lights. The brake wires and turn signal wires share the same wire, and same filament in the bulbs. It is kind of complicated, but brakes applied with no turn signal, brake light wire goes from brake light switch through the turn switch and out to the bulbs. If brakes applied with turning signal, non blinking brake light wire goes from turn switch to rear light, while the turning signal wire will go through the flasher relay, and then to the rear light to cause blinking.

I hope that makes sense. It appears the problem may be in the turn signal switch for both the turn signals and the rear brake lights.
tip

Both Lower Brake Lights Not Working

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.
0helpful
2answers

Transmission code po703

P0703 Suzuki - Brake Switch Circuit Malfunction
Possible causes
- Faulty Brake Switch
- Misadjusted Brake Switch
- Brake Switch harness is open or shorted
- Brake Switch circuit poor electrical connection
Check if the stop light works with the brake pedal, if the brake lights are inoperative, replaced or adjust the brake switch.
Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Brake lights inoperative


0helpful
2answers

2006 brake light will not go out

Light gets power from brake light switch/.May be switch got shorted an brake light getting non-stop power causing it not to turn OFF brake light.

Get the brake light switch checked. Check volt at brake light switch.

It can be faulty brake light switch causing the problem or its wiring short for switch.

==========

To trouble shoot brake related problem, check the help links mentioned below:-----


Click the link:----

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http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html

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http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html

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http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

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http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html

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http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

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http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

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http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html

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http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html

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http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html

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These will help.

Thanks.

4helpful
4answers

I am in need of help. For some reason my brake lights come on all by themselves. The car will be sitting in park, not on and the lights just come on. I have to go and hit the brake petal to get them to...

check brake light switch where the brake pedal arm is.the brake light switch is loose or broken.or bracket holding brake light switch is loose or broken fell out of position. the brake light switch suppose to be touching the brake pedal arm to turn off brake lights.if switch not touching pedal arm.switch is broken,if brake switch touching brake pedal arm,and brake lights still on.replace brake light switch.
1helpful
1answer

What causes the brake lights not come on,but allow 3rd mount light to come on? i've checked the bulbs,sockets,fuses. now i'm stumped.

THOSE LIGHTS ARE ON 2 DIFFERENT CIRCUITS. ONE WHITE WIRE COMING OUT OF THE BRAKE LIGHT SWITCH GOES TO THE CENTER BRAKE LIGHT. THE OTHER WHITE WIRE GOES FROM THE BRAKE LIGHT SWITCH TO & THROUGH THE TURN SIGNAL SWITCH SO THE LIGHTS CAN BE USED AS BRAKE LIGHTS OR TURN LIGHTS. THE BRAKE LIGHT SWITCH IS GOOD BECAUSE THE CENTER BRAKE LIGHT IS WORKING. IT IS A BAD WIRE { WHITE } FROM THE BRAKE LIGHT SWITCH TO THE TURN SIGNAL SWITCH OR A BAD TURN SIGNAL SWITCH.
1helpful
1answer

My 1996 taurus has the brake lights constantly on. when you disconnect the switch by teh brake pedal the car will not shift out of park but teh brake lights turn off???

CHECK BRAKE LIGHT SWITCH TO SEE IF ITS TOUCHING THE BRAKE PEDAL.IF BRAKE LIGHT SWITCH OR BRACKET LOOSE AND AWAY FROM BRAKE PEDAL BRAKE LIGHT WILL STAY ON.IF BRAKE LIGHT SWITCH INTACT BRAKE LIGHT SWITCH NEED REPLACING.WHEN REPLACING BRAKE LIGHT SWITCH OR IT NEEDS ADJUSTING MAKE SURE BRAKE LIGHT SWITCH PLUNGER TOUCHES BRAKE PEDAL ARM WHEN YOU RELEASE BRAKE PEDAL BRAKE LIGHTS SHOULD TURN OFF.
5helpful
3answers

Brake light stays on after car is turned off. Fix?

Most likely the brake light switch located down on the brake pedal lever has either malfunctioned, or is out of adjustment, and when the brake pedal is in the "up" position the brake light switch should be fully depressed, and if it is not then dis-connect the wiring connector to the brake light switch and then turn the brake light switch in until it just fully depresses the brake light switch, and then tighten the locking nut(s) and reconnect the wire connector to the brake light switch, and then test to see that the brake lights are working properly.

If the brake light switch seems to be adjusted properly, then dis-connect the wiring connector to the brake light switch, and if the brake lights go out then replace the brake light switch and adjust it as described above.
3helpful
2answers

Brake lights dont work

Check the brake light switch, it is down on the brake pedal lever, you can dis-connect the wire connector at the brake light switch and check for broken wires at the connector, and then jumper the connector with a paper clip, if the brake lights come on then replace your brake light switch.

There might be more than one switch attached to the brake light pedal lever, the brake light switch usually only has two wires going to it when there are two switches.

If there is no problem with the brake light switch then you can suspect the turn-signal switch to be at fault, as all of the running lights, turn-signals, brake lights, and hazard lights are all ran through the turn-signal switch. You can also try stepping on the brake pedal and wiggle around the turn-signal switch and see if the brake lights flicker or come on.
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