Out of module range

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Sep 18, 2024 | 07:53 AM

jharris

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Joined: Sep 2024

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Out of module range

I have the latest version of Forscan. Trying to calibrate speedometer. I keep getting “circumference is out of range for selected module.” I have put 285/75/R18’s on a 2022 F150. I can get it within 3 MPH, at 60 MPH, I know some will say that’s close enough, but I would like better. Any help would be appreciated.

Sep 20, 2024 | 06:06 PM

isthatahemi

Senior Member

Joined: Apr 2011

Posts: 4,041

Likes: 1,117

Did you do a PCM relearn? You are at the upper end of what can be programmed with Forscan, so it could be you need to either re-learn or use a smaller number.

Sep 20, 2024 | 06:08 PM