Okai Error Code 06E

"ECU lower MOSFET damaged. During self-test when unlocking, the ECU detects the lower MOSFET is damaged or breakdown."

If your Okai-Electisan vehicle is beeping or has a red wrench icon and flashes this code, read below.

If you clicked the wrong error code, go back to the Error Code Index.

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Cause

Error code 06E indicates that the lower MOSFET (Metal Oxide Semiconductor Field-Effect Transistor) in the ECU has failed. This could be due to:

• Overheating: The MOSFET might have overheated due to excessive current or a faulty cooling system.
• Electrical damage: A sudden surge in voltage or a short circuit could damage the MOSFET.
• Manufacturing defect: The MOSFET might have been faulty from the factory.

This error can also be caused by communication errors between the CCU & ECU.

Fix

• Replace the ECU: Since the MOSFET is part of the ECU, the entire unit needs to be replaced.