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During self-test when unlocking, the ECU detects the lower MOSFET is
damaged or breakdown.
Motor hall wires are in poor contact.
⚫ Check if the connect between the motor line and
the ECU is in poor contact.
⚫ Change the motor.
⚫ Change the ECU.
Any one of motor hall wires A/B/C is disconnected.
Any one of motor hall wires A/B/C is shorted to the ground wire.
Any two of motor hall wires A/B/C are shorted to each other.
The hall sampling circuit of the ECU is damaged.
The ECU detects that the temperature of the motor is over 115℃.
⚫ Stop riding, wait for the error code to go away
after cooling down.
⚫ Change the motor.
⚫ Change the ECU.
The temperature sampling circuit of the motor is abnormal.
The temperature sampling circuit of the ECU is abnormal.
⚫ Check if the throttle is flooded.
⚫ Check if the connections are loose.
⚫ Change the throttle.
⚫ Change the meter.
The throttle signal wire or the power wire is open circuit.
The throttle signal wire and the power wire/the ground wire are short-
circuited.
⚫ Check if the left brake lever is
flooded.
⚫ Check if the connections are loose.
⚫ Change the left brake lever.
⚫ Change the meter.
The left brake signal wire or the power wire is open circuit.
The left brake signal wire and the power wire/the ground wire are short-
circuited.
⚫ Check if the right brake lever is flooded.
⚫ Check if the connections are loose.
⚫ Change the right brake lever.
⚫ Change the meter.
The right brake signal wire or the power wire is open circuit.
The right brake signal wire and the power wire/the ground wire are short-
circuited.
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