It turns out that the checksums are actually fine - I revised the way the app verifies checksums (in order to support P59 PCMs) and antus wondered whether the new approach would fix the issue that you ran into.... so I downloaded your files, and the new code says all checksums are valid.Speedy wrote:Bin "My Xtra P01 PCM" is from the junkyard PCM I am using for all bench harness write tests. The other bin "My 2000 Silverado" comes from the PCM removed from my vehicle, for a test read/comparison.antus wrote:Can you post up the bin? It looks like it has bad checksums....
Both bin files are STOCK. Both are from PCMs sharing the same Serv#09354896 and 9381344 O/S (commonly used in 2000 model year).
It's mixed in with some half-baked support for P59 right now, but when the next version is released I think you'll find that writes and compares work with your OS.