stevegough
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 posted on 12/10/12 at 06:33 AM |
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LED problem - tintop
Just put son's car through its annual, and it failed on a few points - one of them was the high-level brake light 'not working'.
Well, it was working, but its only very dimly lit.
Taken it out, and connected it to a spare battery, and its just the same there - there are about 16 LEDs, about 4 of them are U/S, but it is very dim
(bit like me!).
Any ideas please?
Luego Locost C20XE.
Build start: October 6th 2008.
IVA passed Jan 28th 2011.
First drive Feb 10th 2011.
First show: Stoneleigh 1st/2nd May 2011.
'Used up' first engine may 3rd 2011!
Back on the road with 2nd engine may 24th
First PASA mad drive 26/7/11
Sold to Mike in Methyr Tydvil 19/03/14
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jossey
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| posted on 12/10/12 at 07:01 AM |
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You could buy a 12v strip led off eBay and mount that in the case instead. They can be cut to length. And they are very Bright.
I would guess that it maybe quicker to find one at a scrap yard though n fit that to get the pass.
Thanks
David Johnson
Building my tiger avon slowly but surely.
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stevegough
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| posted on 12/10/12 at 07:10 AM |
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quote:
Originally posted by jossey
You could buy a 12v strip led off eBay and mount that in the case instead. They can be cut to length. And they are very Bright.
I would guess that it maybe quicker to find one at a scrap yard though n fit that to get the pass.
Cheers, Jossey - getting a pass isn't really a problem, I checked with the MOT guy yesterday, and, as it is completely removed, it doesn't
have to work! But I can't understand how it has dimmed the way it has?
Luego Locost C20XE.
Build start: October 6th 2008.
IVA passed Jan 28th 2011.
First drive Feb 10th 2011.
First show: Stoneleigh 1st/2nd May 2011.
'Used up' first engine may 3rd 2011!
Back on the road with 2nd engine may 24th
First PASA mad drive 26/7/11
Sold to Mike in Methyr Tydvil 19/03/14
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madrallysport
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| posted on 12/10/12 at 07:19 AM |
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I wasnt aware it was part of the test, i thought as long as the two rear brake lights where working thats all you needed. I've mot'd a
few cars over the years without that extra high level one working. If its not there will that pass if you follow.
UNDERSTEER is when you hit the wall with the front of the car.
OVERSTEER is when you hit the wall with the rear of the car.
HORSEPOWER is how fast you hit the wall.
TORQUE is how far you take the wall with you.
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snowy2
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| posted on 12/10/12 at 08:06 AM |
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New MOT rules.......all brake lights must work. It may even mean that all leds in a strip must work.
dim lights something has gone high restance earth most likely or solder joints on live is poor/dry causing high restance.
sometimes you are the pigeon, most of the time the statue.
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stevegough
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| posted on 12/10/12 at 08:25 AM |
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Thanks for all replies - I am thinking along the lines of a partial short - the car is damp inside ( passenger side floor is flooded ) I have now
traced that problem - sunroof drainline is leaking into the sill!
Luego Locost C20XE.
Build start: October 6th 2008.
IVA passed Jan 28th 2011.
First drive Feb 10th 2011.
First show: Stoneleigh 1st/2nd May 2011.
'Used up' first engine may 3rd 2011!
Back on the road with 2nd engine may 24th
First PASA mad drive 26/7/11
Sold to Mike in Methyr Tydvil 19/03/14
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nick205
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| posted on 12/10/12 at 09:54 AM |
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As you've tested the strip in isolation on a battery it suggests high resistance somewhere on the strip itself. Most likely corrosion or
failing solder joints.
If you have a soldering kit you could retouch the joints very quickly and retest. Might solve the problem for free!
ETA...
SWMBOs tin top no. plate lights stopped working recently (just before MoT) and I traced it to a fractured wire between the body and tailgate. Easy
(if laborious) fix by replacing a section of wire.
[Edited on 12/10/12 by nick205]
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froggy
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| posted on 12/10/12 at 02:11 PM |
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If you know it should work and it doesn't then it's a fail if it works even dimly and the other two work it's a pass and advise.
[IMG]http://i144.photobucket.com/albums/r187/froggy_0[IMG]
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