I tested the voltage on the working light and I have 12 volts there, but no voltage on the non-working light. The fuse is not blown; looking in the engine compartment fuse box at fuse #8, 15 amp.
I have the main power harness removed from the headlight assembly. There is power coming in through this harness, but I need to find out which terminals supply power to the main lamp. The small running light has always worked properly. I am just having trouble with the driver side main lamp power.