AlfaOBD help

[Porkking]

Working on my 20 ram, trying to get parking sensors going. Updated my tire size and went over to the dynamic tire circumference programmed it to 2760 mm but checked the value and it’s saying I’m set at 51260mm. Did I miss a step somewhere? Also truck seemed to spaz out on my way home. Dash and shifter when crazy. Shut the truck off then couldn’t get it started. Push to start wouldn’t light up Had to unplug my security bypass and put stick plugs back ti get it going. Ended up setting U0402 code. Any help will be great!!!

 

[boogielander]

what size tire you have? if it's 35x12.5R17 then just use the toyo 35x12.5R17, even if you're not running toyo.

 

[Porkking]

285/65/20 I think I’m good on my sizing input. It’s just that dynamic tire circumference setting doesn’t make sense.

 

[HSKR R/T]

285/65/20 I think I’m good on my sizing input. It’s just that dynamic tire circumference setting doesn’t make sense.

If you use the tire size change option, then you don't mess with dynamic tie circumference.