Okai Error Code 12E

"General serial communication error - Disconnect and reconnect all serial connectors"

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.

Previous Error Code: Okai Error Code 11E - Next Error Code: Okai Error Code 13E

Cause

Error code 12E (or 12) indicates a problem with the communication between the ECU and other components of the scooter. This could be caused by:

Loose connection: One or more of the serial connectors (like those for the battery, motor, or display) might be loose or disconnected.
Damaged connector: A connector might be damaged or corroded, preventing a proper connection.
Faulty wiring: The wiring connecting the serial connectors could be damaged or broken.
ECU malfunction: The ECU itself might be faulty, preventing it from communicating properly.

Disconnect and reconnect connectors: Disconnect all the serial connectors on the scooter, including the battery, motor, and display. Then, reconnect them firmly.
Check for damage: Inspect the connectors and wiring for any signs of damage, corrosion, or breaks. If you find any damage, replace the affected connector or wiring.
Try a different ECU: If the problem persists, the ECU might be faulty. Consider trying a different ECU (if available).