So I recently bought a boat and the trailer has LED lights. On hooking it up there is a constant fast flicker in all the lights, even when the car is off...???

Some research has lead me to think that one of the idiosyncrasies of the land rover Is that it constantly emits a very low voltage pulse for some reason and as LED lights only need a very small current, it causes them to flash

Incandescent lights apparently don’t have this problem as they require more current.. so I swapped them but ok and behold they aren’t waterproof so have rusted.

Has anyone come across this with LED lights and solved it

Also, the car has 2 sockets with different pin configuration... what’s the other one for ?

Thanks in advance guys

7 pin 12S Trailer wiring

Trailer light Function
1
Yellow
Reversing Light
2
Blue
12v ignition on (battery charging)
3
White
Earth for terminal 2 and 4
4
Green
12v Permanent (direct from battery)
5
Brown
Reversing sensors (usually spare)
6
Red
12v Ignition On (fridge)
7
Black
Earth for terminal 6 Common sense isn't very common.
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2007 Land Rover Freelander2 I6 hse Auto

I too have a boat trailer and use a trailer board with led lights on it without the issue you describe. The only "issue" that the led lights cause is the fact that the trailer tell tale on the dash does not work when indicating. It does appear to be an issue with some vehicles that have canbus wiring as it does as you suggested and sends pulses down the wiring. Some online towbar suppliers offer advice /solutions by fitting relays or resistors to cure this issue but I have no personal experience of whether they work or not so cannot offer any recommendations on what to fit. The 2nd grey plug is for use with a caravan as it supplies 12 volts to charge the caravan battery and also has a 12volt feed when engine is running to power the fridge. It also operates the caravan reverse lights if so equipped.

Last edited by dondiddy on 31st Aug 2018 11:20 pm. Edited 1 time in total

Thanks guys, I’ve managed t track down a potential fix, there are some ready made units for this as it turns out but are expensive.. came across another thread that had a fix.. just have to do a bit of wire fiddling

Hi gsaps, dunno how far along you are with this...You can for $62 buy a FORD LED trailer adaptor which does the job. You need to remove the MALE end of the 12 pin adaptor and replace it with a large round 7 pin to fit into your Black LR plug.

I put a response here http://www.freel2.com/forum/topic32548.html?highlight=led+trailer

good luck. Statistics, where one can be one, two.