I made several changes today - And almost every change I got that check sum error - And I also got an automatic change to one value in another block on the same line. To be clear - I made no change to this block. Instead of initially reading 0179 it now reads 0178.

But the last (3rd) block has automatically changed. I see that the 1 has been replaced by a zero - Great. I then cycle the ignition and run the BCM module again and go check if my change did in fact take effect. I hit yes - And it is successful - But there's an issue. Easy so far - Hit write and I get an error message that states something to the effect that the check sum value is in error and do I want to continue. As you can see - Only the 1st block of 4 numbers - The second number value change from a 1 to a zero. To disable from the F-150 spread sheet the new address: x0xx xxxx xxxx.

I'll describe just one change and the issues from doing this.Д«CM Module: As Built Address - 0100 0000 0179. I used one from the F-150 - To source the codes. By the way - I could not find a spread sheet for the Ranger - Let alone a 2020. I did backup my As Built from Ford in 3 different places - Along with the print out mentioned above. 1st was backing up all the modules - That didn't work. It's from this point I had several issues. Hooked up the laptop to the OBD2 port and initialized Forscan. Went to the Ford site and entered my VIN and got a file list of my As Build - Printed out - It's 16 pages. New 2020 Ranger - Mfgr date of mid March.

Get forscan extended license