If you have been trying to measure resistance from the BATTERY side of the fuse (removed) to ground, you probably need a new meter by now. That circuit is still LIVE and will cook the input stage of an ohmmeter unless you are lucky.
You should be measuring from the NON-BATTERY fuse terminal (load side) to ground to try to isolate the reason why the fuse keeps blowing.
Remember, current flowing THROUGH the fuse is what is blowing it. You have been measuring on the wrong side of it. Make certain you take a voltage reading first to ensure you have NO voltage in the circuit before setting your meter to the OHMS function.
Steve "Electronics Tech for over 25 Years" W
