I too ran into that issue. Had to put the OE style brake light bulbs back in for the turn signals to work when the headlights were on. This is even using a LED turn signal flasher with the correct black ground wire. Wierd.
We will see!
I believe the problem is actually "load resistance"......the very low load that LEDs take.
So, if Superbrightleds" recommends that I will try it out and test all other light functions.
I too ran into that issue. Had to put the OE style brake light bulbs back in for the turn signals to work when the headlights were on. This is even using a LED turn signal flasher with the correct black ground wire. Wierd.
We will see!
I believe the problem is actually "load resistance"......the very low load that LEDs take.
So, if "Superbrightleds" recommends that, I will try it out and test all other light functions.
If not, I return all the stuff back for a refund.
The historic posts that I have read noted that manufacturers had not yet perfected an LED bulb that would work for our old cars. (couple of years old posts)
And the one that was noted to work several years ago is no longer available.
So, there is no "simple" plug and play replacement.