How to replac a brake switch - 1988 Buick Regal

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

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No brake lights on Buick?

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

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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

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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

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1997 Cadillac Catera: How to replace Brake Light Switch?

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

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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

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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

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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.

make sure check brake light fuse first if brake light fuse okay.you replace brake light switch by removing trim panel below steering column.look under brake pedal area unplug electrical connector .remove the cotter pin and pull switch and power brake booster pushrod off the pin.then slide switch off power brake booster pushrod dont lose small nylon washer when installing new brake light switch.

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 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.

You need to check the brake switch on the brake arm under the dash the arm is screwed in and gets loose over time, the switch is $15.00 dollars and is easy to replace, with the wires pulled off of the switch unscrew the switch counter clockwise till the switch comes out then replace it in reverse order screw in till the plunger pushes against the brake arm, when you press on the brake pedal the brake light should come on, this is assuming you have checked the brake switch fuse.

How to Replace a Brake Light Switch
Parts:
1. Brake Light Switch



Tools:
1. Needle Nose Pliers
2. Flashlight
3. Combination Wrench Set

Steps:
Step 1 * Insert your key and turn the ignition switch to the ON position.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.

Step 2 * Turn your headlights on.
o Tip: Have an assistant check to make sure your tail lights are both working properly.

Step 3 * Step on your brake pedal and have an assistant check to see if the brake lights illuminate.

Step 4 * If all the brake lights are out, locate the brake light switch on the brake pedal linkage. Check for 12 volts into and out of the switch.
o Tip: Turn the key to the OFF position before starting any electrical work.

Step 5 * Disconnect the wiring harness from the brake pedal switch.

Step 6 * Disconnect the brake pedal switch from the brake pedal linkage.
o Tip: You may need to remove a c-clip to do so.

Step 7 * Remove the old brake pedal switch and replace it with a new part.

Step 8 * Reconnect the wiring harness to the brake pedal switch.

Step 9 * Repeat steps 1-3 to confirm that the repair has solved your problem.


Hope help with this (remember rated an comment this help) Good luck.