Brake Lights Stuck on!

fishpie

Guest
Hi,

The brakes lights are stuck on on my Altea even when the key is out of the ignition. This drains the battery resulting in the car not starting in the morning. Anyone had this problem or got an idea what could be causing this? I assume this will be sorted under warranty?

Cheers
 

processpaul

Active Member
Nov 24, 2006
103
0
Brighton
Fishpie

Not had this fault but it would be covered by the warranty i dont doubt. Brake switches can fail. had one go on my VW golf not so long ago. You might also find youre cruise control doesnt work if you have it. If it is the brake switch, it should have logged a code in the ECU that the dealer should find.

You could pull out the fuse for the brake lights, that would save you a car that wont start in the morning. leave the fuse cover out somewhere to remind you to put it back whilst driving though!!

Fuse should be under the steering wheel. Just pull the cover downwards.

Brake light fuse is number 23 and is 5amps (light brown).

Hope that helps.
 
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fishpie

Guest
thanks for that, great help, I'll give it go. Its booked into the stealers on Wednesday so hopefully it will get sorted.
 

fishpie

Guest
Have looked at the fuse and it is a 10amp not a 5 amp. Do you know if this could have anything to do with my problem?
 

processpaul

Active Member
Nov 24, 2006
103
0
Brighton
Fishpie

Well i just got the 5 amp rating from my manual. They may differ actually in the car, i've not looked at mine though...its a bit rainy in Brighton!

The 10amp fuse will not have anything to do with your problem. The fuse is only there to prevent excessive electricity (current) passing through the wiring, called a short circuit. If this were the case the, fuse would blow and stop this flow of current and the lights would not be on

As your lights are working, this says there is no problem with the circuit i.e the lights work, just the bit that tells it when to put the lights on, the switch. Sounds like its stuck on to me.

By taking the fuse out the lights should go out, as you will be removing the power to that circuit.

Hope that explains things a bit more.

Subnote, putting the fuse back in whilst driving would mean that your brake lights will be on all the time, I guess that's better than not having any and someone going into the back of you!! I doubt you'll suffer from any tail gaiting either.


Processpaul:p
 

fishpie

Guest
I thought something along those lines.. My Manual does say 5 amps as you suggested.

I have taken the fuse out put some charge into the battery. After a few hours charge I started the car and went for a spin around the block, now the bloody engine coil light is flashing. :shrug: Not having much luck with cars this month..

Thanks for your reply though I'll update the thread when I get it back from the stealers.
 

JonTelfer

On the crab
Jan 24, 2007
187
1
Had this on the Mrs's Polo. There's a microswitch somewhere around the brake pedal that's stuck in the on position. Chances are if you find it and give it a spray with some PTFE or a bit of WD40 it might free up and never bother you again.

Jon
 

Viking

Insurance co's are crap.
May 19, 2007
2,317
4
Near Richmond, North Yorks
Fishpie. The glowplug light flashing is an indicator that there's a problem with the brake lights. Obviously, as you've taken the fuse out it can see a problem and is merely letting you know. Nothing else will be wrong with the glowplugs etc.
 

processpaul

Active Member
Nov 24, 2006
103
0
Brighton
I agree with Viking.

When the brake light switch failed on my golf TDi the coil/glowplug light was on. As he says, its just telling you that there is a problem. The main reason it does this is that cruise control systems look to see if there is a signal from the brake or clutch pedal to disengage it if either is depressed.

Just ignore it and let the dealer sort it out on Wednesday.

Cheers
 
Nov 27, 2006
1,204
1
www.cardomain.com
Just fixed this on my sister's Lupo

Said she caught her foot under the pedal the other day reaching into the back (while stationary) :p
(got this out of her after I'd found and fixed the problem)


There was a tiny gap between the plunger on the brake switch and the top arm of the pedal - pushed it in slightly and the lights went out

so ... temporary fix (till it properly breaks, or she sells the car) 3 little squares of cardboard and some black electrical tape -

i. stack cardboard on the back of a length of tape
(use progressively longer strips of card if you want to be really flash)

ii. stick the tape to the pedal between it and the brake switch


:D
 
Nov 27, 2006
1,204
1
www.cardomain.com
LOL


Yeah, that was the thread I found typing "brake-lights constantly" into Google

Took one look at the most people get through 2 or 3 switches and decided that tape and card was the safest option :D

plus it was raining outside and I couldn't be arsed stripping any more than the lower dash panel :p
 
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fishpie

Guest
Got my car back from the dealers on Wednesday. It was booked in for a service and they didn't know anything about the brake problem. I have to say they were excellent from start to finish. The service guy Ian was very friendly (to my wife :lol: I was not there) and got the problem sorted that day. It was the brake light switch as you guys mentioned.

So I have to give L.C. Charles SEAT Crewe a big thumbs up for being pleasant and getting the job done. They do seem clued up.
 

silverbob

Guest
Had this problem on my MK2 Toledo went to the dealers parts department and the guy
advised me it was the peddle switch ,he said the workshop had changed hundreds and
Seat had modified the problem so I brought a new switch for about £8 and it took me five minutes to change it.
It could be the same for the Altea?

Good luck silverbob.
 
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