Further advice on a LED trailer lighting

[WayneMac]

Hi experts

Firstly, I want to say that I have spent many hours poring thru the posts on the flickering LED’s on trailers (camper-trailer in my case), my brain now suitably fried . We have a 2007 Disco3 SE and have the typical flickering tail-lights and no trailer recognised by the car. I have just ordered the portable LED trailer module from Linear Electronic Design which I am hoping will solve my problems.

However... there is something that I fear may not be fixed and that is that currently the reverse lights on the trailer are not working. Is this a symptom related to the fact that my Disco3 is not recognising the trailer, or is this likely to be another unrelated electrical issue?

I can live with not having reversing lights on the trailer in the short-term but it would be nice to think that the trailer module fixed this problem as well. Any thoughts? As the trailer is stored at the in-laws about an hour away, I can’t readily check and am wondering whether the Disco should go back to the mechanic?

Thanks for advice and opinions
Wayne

[letherm]

Hi experts

Firstly, I want to say that I have spent many hours poring thru the posts on the flickering LED’s on trailers (camper-trailer in my case), my brain now suitably fried . We have a 2007 Disco3 SE and have the typical flickering tail-lights and no trailer recognised by the car. I have just ordered the portable LED trailer module from Linear Electronic Design which I am hoping will solve my problems.

However... there is something that I fear may not be fixed and that is that currently the reverse lights on the trailer are not working. Is this a symptom related to the fact that my Disco3 is not recognising the trailer, or is this likely to be another unrelated electrical issue?

I can live with not having reversing lights on the trailer in the short-term but it would be nice to think that the trailer module fixed this problem as well. Any thoughts? As the trailer is stored at the in-laws about an hour away, I can’t readily check and am wondering whether the Disco should go back to the mechanic?

Thanks for advice and opinions
Wayne

Have you tested the socket to make sure that power is actually going to the trailer reverse lights? My new, at the time, D4 was missing the whole wiring loom for the trailer sockets.

Martin

[Tombie]

Your trailer plugs are wired as above - if you want reverse lighting you’ll need to make a patch harness (2 into 1) to pick up the 12n and 12s plugs..

In Aus, traditionally we have this configuration..


12s plugs are cheap on eBay, then make a 2 in 1 lead...

[WayneMac]

Have you tested the socket to make sure that power is actually going to the trailer reverse lights? My new, at the time, D4 was missing the whole wiring loom for the trailer sockets.

Martin

Thanks for the tip Martin.

Initially I thought I was on a winner, there was a loose wire in the round plug to flat plug cable that I am using but it isn’t that simple . Turns out that cable is for something completely difffernt. I am just reading the post from Tombie which looks like it might be a winner. Hopefully the LED trailer module will sort out my other issues, I can live without reversing lights on the trailer for the short term.

[WayneMac]

Your trailer plugs are wired as above - if you want reverse lighting you’ll need to make a patch harness (2 into 1) to pick up the 12n and 12s plugs..

12s plugs are cheap on eBay, then make a 2 in 1 lead...

Thanks Tombie. I have never seen these images anywhere before, I wish I had seen them a few weeks ago. This should be a relatively simple fix, even for someone like me

[Tombie]

So... if you want to test the theory... with your trailer hooked up, Parker’s on... press the rear fog light button on the dash.. your reverse light on the trailer should illuminate.

[PerthDisco]

Your trailer plugs are wired as above - if you want reverse lighting you’ll need to make a patch harness (2 into 1) to pick up the 12n and 12s plugs..

In Aus, traditionally we have this configuration..


12s plugs are cheap on eBay, then make a 2 in 1 lead...

Brilliant. A few Stickies including this one could be combined into a Trailer Plug FAQ Sticky

[scarry]

FWIW,and for others,instead of the LED trailer module,you can fit a load module behind each tail light in the brake light circuit.

These are turned on when needed via a switch.

I did it this way,as we use different trailers with different plugs and circuits,so this one fix fixed them all.

[northiam]

Getting a 12S plug in australia is almost impossible!


7 Pin 12S Plastic Plug Car Trailer Caravan Gray Electric Plug Socket Towing AU | eBay

[PerthDisco]

Getting a 12S plug in australia is almost impossible!


7 Pin 12S Plastic Plug Car Trailer Caravan Gray Electric Plug Socket Towing AU | eBay

Can buy from the Disco3.co.uk shop very cheaply and wired up to Anderson or whatever plug you like.