Tire size recommendation?

[Superspirit]

Yes, you can correct the speedometer with forscan however it will set a communication code as what we can set doesn't satisfy the pcm. My speedo is correct and the code doesn't turn on the light so without a scan you'll never know it exist's

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[Dean]

So to make sure I understand you...

You mean you have corrected circumference with Forscan, The computer did not like changing it, but accepts the change and sets an error code, but no "check light" turns on, Correct?

I guess the dealer wants to know if the user changed tire size.

While this is needed to get correct speed reading I think it may also impact ABS functioning as well... although to a lesser degree.

 

[Superspirit]

The abs still works as intended. It's utilized a lot in trail control mode and I use that all the time out in the fields chasing birds.

And yes you are understanding it correctly.

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