And if it "took a dump", how does it get fixed? I have a 1996 Pontiac Grand Am. Thank you for your time. I was told of this when I asked the question about my speedometer not working.
A BCM is a body control module. It is a computer chip that controls many of the car's functions, and the loss of your speedometer could be a BCM issue. I haven't heard of anyone actually fixing a BCM--normally you just replace the whole thing. Are you having other problems with the car--especially electronics like gauges, lights, power locks, etc?