If the light went on 1,000 miles in, there's a chance you didn't get the sensor in the right place. First time I did it I realized just before it was too late, that I was putting the sensor too far forward in the pad. I doubt it would trip at 1,000 miles, but check that if you don't see bad connection or the like.
Also, there's a water tight gasket in the connection, and it's possible it got lost, water got in, and corroded things enough where you got a signal--not sure if that's electrically possible or not, but it's easy enough to look for.
As desperate as this sounds, in comedy, 'likes' and 'views,' 'friends,' and 'retweets' really help. If I've ever helped you, please help me by friending, liking, viewing, and retweeting. It makes others think I have a following...it'll take you a minute or less. If you could, I'd really appreciate it!
A recent set--NSFW audio: https://youtu.be/_dcxcZfD6dg
Mangofy your E46!