I installed LED signal lights on front and now they only blink with the headlights off. I tried installing some resistors but that didn't help either. Any ideas? Thanks.

 

Try reversing the polarity on the plug...

 

I did, it didn't change anything. Does anything else have these same led lights? I'm starting to wonder if they just aren't capable of working as the factory ones did. With headlights on they work as only marker lights. WIth headlights off they work as signal properly. Thanks for reply.

 

I've got the same ones, I'm having the same problem... Won't blink properly even with resistors. I really think mine are wired wrong internally. I bench them and they seem to work right but won't work in the truck. I think I'm sending mine back.

 

I've had those LED signals for years and never had an issue. I also have LED tails which aside from the opposite blink of the lower bumper lights everything works fine with only the added resistor which was included with the tails. Maybe the LED DRL's have something to do with it?

 

Yours blink with headlights on? A video would be cool if possible.

 

I was thinking about switching around the signal wire and marker wire, I thought they might be hooked up wrong too. I'll let you know.

 

I think when I did this I also had to switch the taillights to make it work. It was ions ago.

Tim

 

Yes, they have always worked correctly even with 3 different types of headlights.

 

I just got a pair and am having the same issue