Unfortunately, the code may clear but most likely it will come back. What I would suggest is trying to check and change the fluid.
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
However, the most likely cause of this is an internal issue with the transmission.
This code is telling you that the gear ratio is not what it expects to see. Which normally means there is internal damage that is causing it to shift at an improper time.
Most likely you will find the transmission fluid is a dark color and does not smell correct. I suspect you have an issue with the torque converter clutch.
Below is the testing that we need to run through. Please let us know if you have questions. Thanks
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Thursday, May 20th, 2021 AT 3:51 PM