Blinking Trailer LED's

[whitlock87]

Hay my wife’s 14k Kia uses the same ground switching.
Made me think a little before installing DRL's
(I thought it was just a Kia thing) U know CHEEP!

[njbeecroft]

If that is what is happening, yes. From what you posted, and what I can gather, that should be it. You could also switch to standard filiment trailer lights.

I'll give the resitors a try. Thanks for all your help.

Nick

[spharis]

FYI, I had a new body style ram, and it had the same problems with LED turn signals. They would work, but the "lamp out" light would illuminate in the cab. The resistors were the fix. Remember too that you could switch to a regular bulb and housing.

[torenzicht]

LED lighting issues on Range Rover?

Did you ever find a fix that worked? I just had the dealer here wire up the factory wiring harness on my 2004 Range Rover and I'm having similar problems with my 2007 Boatmate trailer with LEDs.

- Left/Right turn indicators pulse very rapidly in the truck with the trailer connected.
- Range Rover dash displays says "Check Trailer Lights"
- Trailer lights pulse on and off, even when Range Rover is turned off and lights in vehicle are off (if connected to harness).

I've taken the truck in and the dealer says the wiring IS correct.

Help!

Am I likely to cause any vehicle problems by using the trailer this way?

[njbeecroft]

The conclusion I have reached after a lot of discussion and internet searching, is to change the trailer lights to old style bulbs. I have just recieved new light units from Dorsey Trailers and plan having these fitted next week. I'll let you know what happens.

[Juiceman831]

Dude

Hey you know what i just saw the title on this topic and Im glad you brought it up...last year I bought my wife a LR3 and let me tell you I thought it was a grounding thing at first but its not. I was frustrated with this but overall it goes away after a couple of minutes so I kinda have just put it on the side and ignored it. People always ask me that my lights are on or if I got my hazard lights on... i tell them its a safety light thing land rovers got only for their cars. hahaha ... anyways I know that doesnt solve your headache but landrover isnt so like the old saying goes...IF IT AINT BROKE...DONT FIX IT!

[Juiceman831]

I would bypass as much of the integrated RR electics as possible. Most of the newer vehicles use ground sensing over resistance to know when to trigger. Bypassing all of that is nice for the owner (you wont have to buy schematics and such) when it is possible. What's I would guess is that Range Rover uses a similar system and the addition of the trailer lights to the common ground for the lighting board is creating enough load on the ground to make the lighting board think the switch is engaged. What happens if you let the trailer lights ground through the ball/frame and remove it (ground) from the harness? Might try it with a test light to see. This may work as the overall load on the common ground to the lighting board will not be increased, but there will be enough current to power the lights, as that is the current wire being used. Of course this all hinges on RRs setup of lighting. They may be using some super secret squirrel stuff I have never seen.

The last vehicle I looked at with this type of system used a CG for all blinkers, headlights, foglights, interior dome, door locks, and window circuits. A sense on the circuit board worked kind of like binary math to let the conrtol unit know where to send power. So let's say the driver window up was 330ohms, then the circuit knew to roll the window up. 800 was fog lights, so a total of 1130 let the circuit know to roll up the window and turn on the fog lights. It really sucked for aftermarket integration, but I can see where a modular system like this makes it very easy for the manufacturer to reduce cost, and make maintenance much easier.

Be lucky its a range rover. I hear the new Infinitys and Lexus have fiber for comms. That would really suck, as there is now way to tap a fiber for a signal.

[njbeecroft]

not been on the site for ages. Fixed good old fashioned non LED lights and that fixed it.