Here comes a similar problem:
One of our customers failed to reset oil on a Jeep Renegade 2020 with Autel MaxiCOM MK908 II diagnostic scanner.
Error message “Unlock failed. The tool did not allow.”
Solution:
For 2018+ FCA Chrysler Jeep Dodge you need to unlock or bypass gateway to access functions.
2 Ways:
1. use Chrysler 12+8 gateway adapter, Start Connector to unlock gateway
2. purchase AutoAuth license
How to Purchase, Activate and Use FCA AutoAuth for Autel Scanners?
This can be applied to all Autel MaxiSys and MaxiCOM scanners.
