irishrover
Member Since: 18 Aug 2008
Location: The Treaty County
Posts: 361
  
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| Trailer Lights: LED's at fault??? |
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Evening all,
i am borrowing a trailer from work that has LED lights, when i plug into the rear electrics the indicator lights on trailer flash dim, even though no indicator on.also no park light come on when i switch lights in disco on or brake lights. Plugged them into a transit van, and all the lights on trailer worked fine. am i right in thinking the disco is @ fault.
I have used my old mans trailer with the disco before which has non-led trailer lights, just normal bulbs and the park, brake and indicator lights all work fine! am i mssing something? I also noticed that when i use indicator i get a trailer signal in the dash with my fathers trailer but nothing with this one from work appears on the dash..
all comments welcome.
Ian. 07 Discovery 3 TDV6 Commercial (Java Black) with:
Gone but not forgotten.
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 9th Jul 2010 4:52 pm |
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Ken
Member Since: 20 Feb 2006
Location: Here
Posts: 10865
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D3 hates Trailer LEDs you needa shunt box or the like 
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| 9th Jul 2010 5:18 pm |
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PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 4317
 
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LEDs consume a lot less power than their candescent equivalents.
When fitting the D4 LEDs to a D3, you need to add a ballast (or shunt) resistor so that the instrument pack doesn't think that a bulb has blown and start flashing the indicator lamp at double speed.
As Ken says, the same thing happens if you use a trailer with LED lamps - the D3 throws a wobbler unless you fit a shunt box.
The Transit probably just simply doesn't perform this type of control over the current drawn by the indicator lamps.
So yes...technically speaking it is your Disco at fault, but it isn't actually a fault of any kind - it's just doing what it's supposed to do 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG
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| 9th Jul 2010 5:29 pm |
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Chicken Duck
Member Since: 11 Nov 2009
Location: Italy
Posts: 1387
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W  k design again isnt it by LR EDIT= i mean nobody at LR even though that we may just plug a led bulb in
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| 9th Jul 2010 8:32 pm |
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irishrover
Member Since: 18 Aug 2008
Location: The Treaty County
Posts: 361
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Cheers guys,
Just once i know that it happens to all D3's and LED's fitted to trailers.
Thanks.
Ian. 07 Discovery 3 TDV6 Commercial (Java Black) with:
Gone but not forgotten.
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| 12th Jul 2010 8:06 am |
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