Okai Error Code 04E

"Motor block protection. Motor blocked or short circuit or drive failure."

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 04E indicates that the motor is not rotating, but the ECU is still trying to send a high drive current (greater than 6A) for more than 2.5 seconds. This usually happens when the motor is unable to turn, potentially due to:

• Locked rotor: The motor might be stuck or jammed, preventing it from rotating.
• Short circuit in motor: A short circuit within the motor windings could cause it to stall.
• Faulty wiring: A short circuit or broken connection in the wiring between the motor and the ECU could also lead to stalling.

Fix

• Check for obstructions: Make sure there are no physical obstructions blocking the motor's rotation.
• Check for locked rotor: Try to manually rotate the motor to see if it's stuck. If it's locked, you might need to investigate the reason for the jam.
• Inspect motor wiring: Carefully check the wiring between the motor and the ECU for any signs of damage, wear, or short circuits.
• Replace motor: If the motor wiring is intact, the motor itself might be faulty. It may need to be replaced.
• Replace ECU: In rare cases, the ECU might be faulty, causing an incorrect signal to the motor. Consider replacing the ECU as a last resort.