Bdizzle
Active Member
- Thread starter
- #46
I wonder if I use my ford performance tuner to do the same thing, change the tire size in there and change it back to see if that fixes it if thats the same as the forscan thing too.I think that will fix it, as I have not dove into the (Tune) process and what actually gets altered in the programming.
I can say that the Code being generated is somewhat vague in the Troubleshooting of it.
It is not specific other than (Reprogram or Replace It)
From what I can tell is that (Error) relates to the PCM not seeing, Tire Size, Axle Ratio and Cruise Control Data from the other modules.
So, a part that programming was altered with the Tune. (Transmission Shift - Strategy)
The PCM dumped whatever it is looking for and now needs to be told (Relearned) what those parameters are.
With the help of (Google) it pops up sometime for owners who change the tire size ratio.
Some have reported if they change the tire size again (forcing a change) and then reselecting the correct tire size will correct the issue.
Basically, it forces a reset / relearn of it (Backdoor Way)
Clearing the Code will not fix this, it has lost the parameter, so you have to force it to learn it.
So, an alternate way of what they are going to do, is physically forcing a tire size change and then resetting it back to OEM (Stock) size.
This may or may not work but would be easier and cheaper avenue to try.
As with my Google search, that code appears to be related to the Tire Size input that the PCM is looking for.
Just curious, when were the Tires replaced?
Was it about (1) month ago, if so the TPMS relearn of tire position (MAY) have created this loss of information.
That is the only tie in (related) thing I see. If you don't have Forscan and (Zero) changes were altered.
Other than that, it is just an anomaly and the PCM somehow lost that input.
Just worries me to drop the 1k into it if they aren't sure if it will fix it or not
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