I had the same issue with my Pathfinder. ECM was sending the ipdm a signal that turned off the alternator for supposedly better mpg. It turned ot off so often the battery would die and it wouldn't start. I did replace the ipdm and ot didn't fix it. I then disconnected that circuit from the alt...
These little bastards got me a few years back clearing some brush. They kept my chainsaw for two hours till it ran out of gas. Little SOBs got in the muffler while it was still running.
I did the LED no ballast swap because my fixture was very nice and nothing else sold complimented my cabinets. Didn't have to wait for my wife's approval. The temp of light is important. For example, do you want laundry room white or kitchen warm light?