Tire Size Change Issues

[Mzekew]

Changed tire circumference from 2320 (standard base factory settings) to 2525 (standard Badlands factory setting) to accommodate going to 285/70/r17.

That was the only value changed. Now I’m getting “service engine soon” and “check 4x4” messages every time I start the vehicle.

I changed it back to default, still with the messages. Drove it around a while, cycled it on and off, still there.

Anyone have any info on what the issue could be?

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[rtazz17]

there is a thread on this somewhere. you need to do a something "relearn" via forscan. I had same thing. Relearn fixed it. Maybe it was 4x4 relearn. Do a search on forum. I changed wheel size to what I needed and did the relearn. The thread tells you step by step how to fix it so you dont mess anything else up. Or go to dealer. Which I wasnt about to do.

 

[Mzekew]

there is a thread on this somewhere. you need to do a something "relearn" via forscan. I had same thing. Relearn fixed it. Maybe it was 4x4 relearn. Do a search on forum. I changed wheel size to what I needed and did the relearn. The thread tells you step by step how to fix it so you dont mess anything else up. Or go to dealer. Which I wasnt about to do.

Thanks for the info. I’ll look for that.

 

[Mzekew]

updating this tread to close the loop. Anyone with this issue should go to the Service Functions section to reset AWD module and reset all PCM adaptations. You can then clear the warning codes in the DTC tab. This solved the issue for me and also resulted in better shift points with the bigger tires after driving around post-adaptations reset.

 

[VIRUS]

updating this tread to close the loop. Anyone with this issue should go to the Service Functions section to reset AWD module and reset all PCM adaptations. You can then clear the warning codes in the DTC tab. This solved the issue for me and also resulted in better shift points with the bigger tires after driving around post-adaptations reset.

Again, I think you should move to Wisconsin. We have beer and really good cheese!

 

[Snacktime]

Awd 160 Code needs Awd Module Relearn to clear

 

[Mzekew]

Awd 160 Code needs Awd Module Relearn to clear

Thanks for adding that. It’s been over a week since I cleared all the warning codes. AWD relearn also sounds familiar. I probably ran that one, too.

If there’s no error messages DTC and you force a module to relearn anyway, there’s no harm, right?

I wouldn’t go around doing it all the time, of course.

 

[Snacktime]

Thanks for adding that. It’s been over a week since I cleared all the warning codes. AWD relearn also sounds familiar. I probably ran that one, too.

If there’s no error messages DTC and you force a module to relearn anyway, there’s no harm, right?

I wouldn’t go around doing it all the time, of course.

It's the only way to clear the Awd 160 code, just making sure there the info is out there. Forscan is awesome yet has its risks!

 

[M4Madness]

My dealership is calibrating my speedometer this week, more than likely using a non-ForScan method. I hope they don't encounter problems. LOL!

 

[BroncoByte]

For anyone else that ended up here like me, this is the other tread that is mentioned. It has a long discussion about this particular problem.

And on that tread, this specific post had everything I needed to solve my issue.

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