How to replace a brake light switch? - 2000 Ford Expedition

use a continuity tester to check the wiring from the switch to the brake lights

Brake switch must be adjusted such that it is depressed with pedal up and released as soon as pedal is slightly depressed.

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

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.

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

Click the link:----

1996 Buick Regal Grand Sport Brake light Switch Location?

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

-----------

No brake lights on Buick?

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

----------

Brake lights not working on 1989 BUICK REGAL?

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

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How to replace Brake light switch on Chevrolet Tahoe?

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

---------------

How to replace Parking, turn, and Brake Lights on car?

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

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Upper brake lights work, but low brake light not working?

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

------------

1997 Cadillac Catera: How to replace Brake Light Switch?

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

------------

1996 Chrysler LHS brake light circuit wiring diagram?

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

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How to replace rear Brake lights on 2004 Toyota RAV4?

http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html

------------

One brake light on driver side not working, but other lights work?

http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

----------

2002 Lincoln Town car Fuse Box

http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html

2007 KIA Rio: Brake Light Fuse Box Diagram?

http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html

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Overhead Brake lights not working on 1999 GMC Sierra 4x4?

http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html

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Brake lights not working

http://schematicsdiagram.blogspot.com/2012/11/brake-lights-not-working.html

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2004 Ford Mustang: Brake light Fuse Location?

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

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These will help.

Thanks.

It 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 the case.
==========
To trouble shoot brake related problem,check the help links mentioned below:-----


Click the link:----
1996 Buick Regal Grand Sport Brake light Switch Location? http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html
----------- No brake lights on Buick? http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html
---------- Brake lights not working on 1989 BUICK REGAL? http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

-------
How to replace Brake light switch on Chevrolet Tahoe? http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html
---------------How to replace Parking, turn, and Brake Lights on car?

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

----------
Upper brake lights work, but low brake light not working?

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

------------
1997 Cadillac Catera: How to replace Brake Light Switch? http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html
------------1996 Chrysler LHS brake light circuit wiring diagram? http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html
----------How to replace rear Brake lights on 2004 Toyota RAV4? http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html
------------
One brake light on driver side not working, but other lights work? http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

---------- 2002 Lincoln Town car Fuse Box http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html 2007 KIA Rio: Brake Light Fuse Box Diagram? http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html
-------------Overhead Brake lights not working on 1999 GMC Sierra 4x4? http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html
---------2004 Ford Mustang: Brake light Fuse Location? http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html
---------These will help.Thanks.

Hi Chris....When you release the brake pedal, there is a switch underneath the brake pedal that disconnects the circuit to your brake lights causing your brake lights to switch off. Sometimes this brake light switch will go bad and need replacement. For the most part, replacing the brake light switch is very simple. Simply replace the brake light switch with a new one. If your brake light stays on after you turn your car off and you don't want to run your battery down, you may be able to get down underneath the brake pedal and manually pull up on the brake light switch to deactivate it until you can get it repaired. This method will only work if the brake light switch is just sticking.

I hope this helps FixYa!

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.

It seems like you may have a bad Brake Light Switch, which is located on your Brake Pedal. The switch is activated when you step on the brakes it sends a signal to the Brake Lights to turn the lights on when the pedal is depressed, if it is defective it may be keeping the Brake Lights on. You can purchase on and replace it yourself, it is not very difficult.

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.

It sounds like the brake light switch down on the brake pedal is stuck and it needs replaced,Its got like a push button setup when you apply the brakes the brake pedal pushes the brake switch button in brake lights come on and when you relase the brake pedal the button on the switch comes back out and brake lights go out but if switch is worn out or sticking the lights will stay lit even when off the brake pedal so just replace the brake light switch down on the brake pedal.