Code B1A7D-01, what does it mean?

Basically this means that the security circuit on the push button start does not match the signal circuit. These circuits are duplicates of each other and when they don't match, it sets this code.

https://www.2carpros.com/articles/how-to-check-wiring

I am attaching the info for this code below so that you can run through the testing.

Please let us know what questions you have and we can go from there. Thanks