Thought I would bring this thread back to life, since I have the same issue in my Scamp. I use a starter relay and a three wire alternator. My question to this post, is how do I confirm that there's a diode, resistor, or lamp as described? I'm fairly ignorant to electrical components.
You really should start a new thread. What specific alternator are you using? Model, make, like GM 12SI, or Toyota etc. Very first thing to do is find that out
Next what do you mean "confirm there's a .............." Who installed the alternator? No stock Mopar that is in the context which we deal with, has any of this. They are not used factory
