Question about Buick LeSabre

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I keep blowing fuses when i step on the brakes. I changed all the bulbs. was going to replace the brake switch and haven't yet. The car is a 1993 Buick Lesabre Custom. i also don't have the fuse box diagram.

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Sounds like wires are making false contact, you will have to trace light wires from rear of vehicle.

Posted on Sep 03, 2010

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On some models the light switch it defective increasing the volts in the tail and brake circuit.

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1993 Honda Accord brake lights don't work. Where is the grounding wire and what does it look like?


Why don't you start with the brake light switch located on the rear of the brake pedal. It might need a simple adjustment or replacement.. Then make sure both bulbs are good and you didn't blow any fuses. If all of this checks out get back to me and I'll give you the additional diagnosis steps.

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Brake lights not working,


Assuming the wiring to the brake lights is serviceable, you will find that the brake light switch, which is activated by the brake pedal for the brake lights, will have failed and will need to be replaced.


Just ensure you first replace the fuse and both brake light bulbs as an initial step and then re-check to ensure you still have no lights.

Sean

Jan 02, 2010 | 1993 Toyota Celica

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Changed fuse and brake light still doesnt work


Did you check for voltage at the light socket before replacing the fuse?
Was the fuse blown? If so, you need to find out why it blew. (fuses do not blow for no reason) If not, why did you replace it?

Did you check for voltage in and out of the brake switch? Brake switch failures are common on Dodge trucks. There should be voltage going in, but none coming out the other side until the brake pedal is depressed. If there is voltage going in, the fuse is not blown. If there is still no voltage on the other side when the brake pedal is depressed, then the brake switch is your problem-child.

The next step is to check for voltage in and out of the multifunction switch. (turn signal switch) The brake lamp voltage is switched on and off by the turn signal switch. Failure of the turn signal switch can cause a "no brake light" symptom. This is a common failure among most makes of vehicles. This failure can often be verified by stepping on the brake pedal and wiggling the turn signal switch. If the brake lights flicker on and off while doing this, the mutifunction switch needs to be replaced.

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Can anyone tell me what # fuse it is for the brake lights? I changed the bulbs but they keep blowing.


fuse 13, 20 amp yellow.

  • The Stoplamps Are Inoperative
  • Fuse(s).
  • Brake pedal position (BPP) switch.
  • Circuitry.
  • Lamp outage module (if equipped).
  • GO to Pinpoint Test J .
  • One or More Stoplamps Are Inoperative
  • Stoplamp bulb.
  • Circuitry.
  • GO to Pinpoint Test K .
  • The Stoplamps Are On Continuously
  • BPP switch.
  • REPLACE the brake pedal position (BPP) switch.


please give a good rating. thanks

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2004 chevy impala....my brake light fuse keeps blowing...fine when you replace the fuse but then when you step on the brake it blows (the fuse that say BRK SW}


you have a short somewhere. if it is the brake switch fuse it is probably the brake switch which should somwhere on the pedal arm or actuated by the pedal arm. also check your bulbs if you haven't already. hope this helps.

Mar 25, 2009 | 2004 Chevrolet Impala

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1993 Buick Lesabre Brake Lights & Signal


I hate to tell you this but its going to be a tough issue to find. You will need to check all the light bulbs are the correct bulb. Make sure they are correct not what was in there. I would check the brake switch on the brake pedal to make sure it is ok. then you will need to trace all the wires to find the short.

Mar 01, 2009 | 1993 Buick LeSabre

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