Question:
When programming Seat MII 2018 and 2021 using my X431 IMMO PLUS, software failed to communicate cars.
Dealer key generated ok but key learning failed.
Here is the Answer:
Error:
7F 37 Error during key learning.
Reason:
Wrong security check.
Solution:
Turn on ignition, and learn keys again after 10 minutes.
Hope this could help!
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