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.
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