Error code occurred during ECU upgrade (5021-10-7000)


ECU upgrade in progress, error code occurred: error code 5021-10-7000



The vehicle is not equipped with the controller or In case there is no response for reasons such as controller failure.



1. If the vehicle is not equipped with the corresponding ECU, it is not a target vehicle and cannot proceed with the ECU upgrade. Please check whether the vehicle is equipped with a ECU.


2. When the corresponding ECU is installed, if the error below occurs, it means that no signal is detected from the ECU due to an error such as a ECU failure. Check whether the vehicle ECU is operating normally.

Checking diagnostic communications is required for the same vehicle systems.




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