Test The Starter..Use Jumper Cables.Clamp the positive to the Wire terminal. Touch the Negative to a Good/convenient Spot on the Starter Housing Somewhere and see if it Cranks. I normally put the Clamp on to the Positive and Touch the Ground so that WHEN YOU MAke Contact and Get the initial Arc/Spark when making Contact,you dont Bugger/melt your Positive Wire terminals Threads.Once you have your Starter varified as Working fine,you can go Backwards and Hunt down the Fault..Might be Coicidence ,but the Starter may have Died on you..Strange things can happen..