Need help Forscan speedo problems

[LFTD BRONCO]

I am trying to use forscan to recalibrate my speedo for 38x13.50r17 after I do it I am getting a service system error can anyone help

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[BlueBronco]

I kept getting an error when doing the same but don't recall what it was. I would have to search here to see if I posted about it. I also had to dial back the 37 to mm conversion to get the speedo right but can't remember that off the top of my head either. Anyway, I followed the FORscan instructions to a t and got the error so I just ignored it and it has been months. The only problem I have had since is that cruise won't work in 5th gear in my manual...

 

[orion]

Try this...
https://www.bronco6g.com/forum/thre...th-forscan-for-2021-bronco.23064/post-1336626

 

[LFTD BRONCO]

Try this...
https://www.bronco6g.com/forum/thre...th-forscan-for-2021-bronco.23064/post-1336626

Ur a life favor

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