Symptom:
Error code 5021-10-7000 occurs while performing an ECU upgrade.
✅ Cause
This error may occur in the following situations:
-
The applicable control unit (ECU) is not installed in the vehicle.
-
No response signal is detected from the control unit due to a control unit malfunction or a similar issue.
🛠️ Resolution
-
If the applicable control unit is not installed in the vehicle
-
The vehicle is not eligible for this upgrade; therefore, the ECU upgrade cannot be performed.
-
First, verify whether the applicable control unit is physically installed in the vehicle.
-
-
If the error occurs even though the applicable control unit is installed
-
No signal may be detected from the control unit due to a control unit malfunction or communication fault.
-
Use the diagnostic functions for the same vehicle system to verify that the control unit is operating normally.
-
If the same error (5021-10-7000) continues to occur after diagnosis, the control unit may be in an unrecoverable state.
-
In this case, request additional technical support from the manufacturer.
-
Comments
0 comments
Please sign in to leave a comment.