Turn Signal Problems with new LED bulbs

Anywhere you can make them work. I never used them, so I have no working experience with them. Good luck.

 

Like others have said. You can't find the relay because there isn't one.

You have to put a resister in line so there is a draw when you put your turn signals on. Mine are in the front turn signals on the front fenders. You wire in a resister between the red hot wire for signal light to ground. 150 ohm resister should do it.. One on each side.
That will provide enough load on the circuit to make everything work correctly or make the ecc happy.
Or just put normal lights back in

 

that's a bad ground

 

It's not a ground. That system does those funny things it's not meant to be run with leds. He needs resisters or put stock lights back in .

I have 2 westernstars been thru all this with exact symptoms

 

If you put an incandescent bulb in the circuit and they suddenly work again.... then yes it needs a resistor.

 

All you need to do is take the lens off front turn signals on each side of fenders.

Put a resister on the red hot wire going to turn signal and put other end of resister to the ground wire .
Do the same for the clearance light circuit.

 

If you buy the factory led front tune signals from western star they have the resisters wired in already just for that reason

 

You need an LED module.....the one behind the tach and speedo in the dash that operates the turn signals and daytime running lights. Otherwise you have to wire an incandescent bulb in that circuit somewhere.

My truck did not come with LED turn signals and I put a set on when the originals rotted out. They did not work. Dealer told me that I either needed to buy a module for LED's or add an incandescent in somewhere.

Just wish they told me that BEFORE they sold me the LED turn signals and replaced that module under warranty when it failed.

 

Here's a completely different way to get led turn signals without the troubles mentioned above. Last summer I changed all the lighting in our holiday trailer to the plug n play led bulbs. Had a couple left over. Decided to try them on the star front turn signals. Work great. Give the nice bright crisp flash. No mods needed. Plug n play.