Hello. How do I calculate checksums for the sixth calibration in the ECM module? I know that the checksum is located in the first two bytes and in bytes 32 and 33. I used the Troy method and GM Checksum Cal available on the website. Neither method helped.

for ECM simple CS calculation methods are not suitable, special algorithms are required, depending on the ECM type.

Astra J 1.4 Turbo, Delco E78. I am referring to the checksum found in bytes 32 and 33.

@stensin did you solve it ??

No