The screen on the BCM doesn't light up. Everything seems to work. I was told that it was the twilight sensor which doesn't work since I had new shocks put of the front of my Cadillac. They said they put a new BCM on it and it didn't change a thing.
Optional Information:
1988 Cadillac Eldorado 4.5
Already Tried:
Put in a different BCM
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