ohlarikd
Enthusiast
one of my 3157 did not work, it stayed on without flashing, took me a while to figure this out. If you swapped the bulbs, then you know for sure. Did you take a voltmeter and see if you get voltage in the socket when using LED bulb? Also, you cannot change the color of the marker lights anyway, leaving the incandenscent bulbs alone in markers may be a better way.
Yes, I could leave the incandescent to be legal. But I am not ready to give up, it has to work in some configuration. Driving season is over - just snowed, salt on roads, so now I have nothing but time to get this right. I will measure the voltage when its off, easy to get in the 198 socket since it is quite open. In the end, still doesn't work, so I will try to fool it with the 25 ohm load. If that doesn't work, well, I am sure we will think of something! I still need to put in the rear turn signals (still two week backorder), and that will further mess up the load possibly.
If I just leave out the little 198 bulbs, everything else works without resistors. Amazing how such a little thing can make such a giant mess.