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I'm not sure where it is located. But, I had mine replaced recently because of a problem of my gears not shifting (key stuck in ignition). I was told that the BCM is what control the signal when pressing down on brake to shift out of park. Also, my gas gauge doesn't work (reads Empty) and I can't check my oil/transmission level on my dash ( it reads XXX). I think I need a ECM.

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13y ago
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Q: Where is body control module on 2003 Cadillac CTS?
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