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

Symptom:

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

Cause:

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

Resolution:

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.