Can your old one be capable of running the latest OS? For licensing, you won’t be able to use the same as both hardware IDs are different so you’ll have to request another one for the other hardware.
I would use that as a starting point and then if it is still off use the GPS method. The tire size calculation worked for my new tires but with my buddies we needed to adjust slightly via GPS.Well... since the idiotic state of California won't let my dealer reprogram my truck for the new, larger tires that THEY installed, I guess it's up to me and Forscan to do it.
But... I am more a little confused about the instructions...
According to the spreadsheet:
My new tires are Nitto Ridge Grapplers LT285/65R20's.
According to "Spart's tire size calculator".... that means...
So... that equates to 0A 6D mm in circumference, or 10 for the first two digits, but 6D equals 109... which is THREE digits.
According to the Nitto website, these tires have a diameter of 34.80" or 883.9mm, which means that the circumference of the tire is 2,776.8537mm. So, to me, that means that the first two digits should be "1B" (27) and the second two "4D" (77), not "0A" and "6D".
Or am I totally misunderstanding this whole thing. (Which is not out of the question.)
But that makes no sense to me either. That means the 1st two digits of your tire circumference in HEX is "09" and the next two are "F2"... 09 Hex equals 09 in Decimal, F2 in Hex is 242 in Decimal... so how can that be the 4 digits of the circumference of your tire when it's actually 5 digits when converted to decimal?I didn't think about it too hard, but this is what the stock 20" tire size comes out to. I will be changing over to the factory 20" wheels and tires from the 17". I thought that it was converting the circumference from the calculation into a hex whatever for forscan.
Use what as a starting point? The numbers from Spart's make no sense to me. I am just hoping someone can explain it. (I am actually a pretty technical guy... which is why this is frustrating me.)
You are breaking the number in half to try to make sense of it. You wouldn’t take 27 and 76 put them together and get 2776, you would have 27+76. Do the conversion to hex, then worry about where they go.Well... since the idiotic state of California won't let my dealer reprogram my truck for the new, larger tires that THEY installed, I guess it's up to me and Forscan to do it.
But... I am more a little confused about the instructions...
According to the spreadsheet:
My new tires are Nitto Ridge Grapplers LT285/65R20's.
According to "Spart's tire size calculator".... that means...
So... that equates to 0A 6D mm in circumference, or 10 for the first two digits, but 6D equals 109... which is THREE digits.
According to the Nitto website, these tires have a diameter of 34.80" or 883.9mm, which means that the circumference of the tire is 2,776.8537mm. So, to me, that means that the first two digits should be "1B" (27) and the second two "4D" (77), not "0A" and "6D".
Or am I totally misunderstanding this whole thing. (Which is not out of the question.)
WTH...
IPC - Instrument Panel Control Module
Part number: ML3T-10849-CCL
Calibration level: ML3T-10849-CCL
Strategy : ML3T-14C026-CCM
tonesto7 this is my doing. I took some of the info you came up with and figured out the “error” issue for my Tremor initially. I rolled it out on a tremor specific forum first. Then a new thread popped up here, so I rolled it out to everyone. There are some differences depending on the truck configuration, but I think we have everyone covered now.
I thought by referencing you guys you would get some type of notification. Guess not.
I followed ROBB1's instruction and also don't get a warning.
Nice!Doh!!!! I took the instructions LITERALLY!
I am an old, old programmer... and read them sequentially!
The answer is: Take your circumference in mm, convert the entire value to HEX, then put the first two characters in the first location, the last two in the second position!
So... my tire is 2,777 mm in circumference, which is 0AD9 in Hex... which isn't far off from Spart's tire size. Since I got my number from the Nitto website, I think I'll go with that.
Thanks for clearing that up for me! Hopefully it makes sense to @smarty39 who was also confused.
To my credit though... the instructions in the spreadsheet are not very clear.
Old one is plenty capable, 5yr old win10, 1tb/32ram—just a slow I3 processor.
