Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is***** you tell me if the security light is on or flashing when cranking the engine over?
Thank you. Most of the time when this occurs it is caused by a a failure in the programming in the body control module. This will cause these issues. I would try a hard reset before taking the vehicle for programming. Do this by removing the battery cables and touching them together. Hold them there for a few minutes and then install the positive cable followed by the negative cable. Also, were the battery cables crossed at any time?
Unfortunately you cannot just install a BCM as it will not communicate with the other modules if it is not programmed. And yes, it will keep the vehicle from starting. As for the battery cables, I ask because that can cause different fuses to blow and cause this.
In the fuse box under the hood there are a few fuses that are rated at 60 amps and 40 amps. These are the ones that you need to check. If you have a voltage meter I can also tell you how to test it.