Okai ES400 Error Codes

Levy Support

April 05, 2024 17:17

Display Error Codes

Error code	Error name	Error cause	The solution
02E	Battery under voltage	The ECU detects that the battery voltage is under 43V.	Charge the battery, the error code will go away. Change the ECU. Change the battery.
		The sampling circuit of the ECU is damaged.
		The battery is damaged.
03E	Motor phase line fault	During self-test when unlocking, the ECU detects the motor phase line is short-circuited.	Check if the connection between the ECU and the motor is short- circuited. Change the Motor Change the ECU.
04E	Motor stalling	When the motor isn't rotating, the drive current is higher than 6A for 2.5 seconds.	Dismiss locked-rotor state. Check if the connection between the ECU and the motor is short- circuited. Change the Motor Change the ECU.
05E	ECU upper MOSFET damaged	During self-test when unlocking, the ECU detects the upper MOSFET is damaged or breakdown.	Change the ECU.
06E	ECU lower MOSFET damaged	During self-test when unlocking, the ECU detects the lower MOSFET is damaged or breakdown.	Change the ECU.
07E	Motor hall fault	Motor hall wires are in poor contact.	Check if the connect between the motor line and the ECU is in poor contact.
07E	Motor hall fault	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.	Change the motor. Change the ECU.
		Any two of motor hall wires A/B/C are shorted to each other.
		The hall sampling circuit of the ECU is damaged.
08E	Motor over-heated	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.
09E	Throttle fault	Throttle fault.	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.
10E	Left brake lever fault	Left brake fault	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.
14E	Right brake lever fault	Right brake fault	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.
15E	Lost firmware of the ECU	The ECU failed to update the program.	Re-send the update command. Change the ECU.
18E	The throttle not at the original position	During self-test when power on, the meter detects that the throttle isn't at the original position.	Turn the throttle to original position. Check if the connections are
		The throttle signal wire and the power wire/the ground wire are

		short-circuited.	loose. Change the throttle. Change the meter.
		The ground wire is open circuit.
		The sampling circuit of the meter is damaged.
		The throttle is damaged.
19E	The left brake lever not at the original position	During self-test when power on, the meter detects that the left brake lever isn't at the original position.	Turn the left brake lever to original position. Check if the connections are loose. Change the left brake lever. Change the meter.
		The left brake signal wire and the power wire/the ground wire are short-circuited.
		The sampling circuit of the meter is damaged.
		The left brake lever is damaged.
20E	The right brake lever not at the original position	During self-test when power on, the meter detects that the right brake lever isn't at the original position.	Turn the right brake lever to original position. Check if the connections are loose. Change the right brake lever. Change the meter.
		The right brake signal wire and the power wire/the ground wire are short-circuited.
		The sampling circuit of the meter is damaged.
		The right brake lever is damaged.
25E	The ECU heartbeat fault	The meter hasn't detect the ECU heartbeat for more than 5 minutes.	Check if the connection of the ECU is loose. Change the ECU.
26E	The IoT heartbeat fault	The meter hasn't detect the IoT heartbeat for more than 5 minutes.	Check if the connection of the IoT is loose. Change the IoT.
27E	The BMS heartbeat fault	The meter hasn't detect the BMS heartbeat for more than 5 minutes.	Check if the connection of the battery is loose. Change the battery.
28E	Illegal IoT or ECU	Authentication match between the IoT and the ECU failed.	Change the IoT. Change the ECU.

Battery Error Code

Error code	Error name	Error cause	The solution
E01	Failed to communicate with protection chip	protection chip damaged	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
E01	Failed to communicate with protection chip	hardware of communication bus damaged
E02	Metering device damage	Hardware failed	Press the switch for 15 seconds to start the restart function. If it cannot be eliminated, please scrap it.
E03	Flash chip damaged	Hardware failed	Please scrap disposal.
E04	Drop event	Free fall detected	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
E05	Charge MOSFET damage	Current sensor damaged	Please scrap disposal.
E05	Charge MOSFET damage	MOSFET damaged	Please scrap disposal.
E06	Discharge MOSFET damage	Current sensor damaged	Please scrap disposal.
E06	Discharge MOSFET damage	MOSFET damaged	Please scrap disposal.
E07	MCU ROM damage	Hardware failed	Please scrap disposal.
E08	MCU RAM damage	Hardware failed	Please scrap disposal.
E09	Cell temperature sensor damage	Sensor damaged or wires was dropped, both RCL1 & RCL2 were damaged	Please scrap disposal.
E10	Large charging /discharging temperature difference	△T(cell)>15℃(1s), don’t allow charging	Do not connect to the power supply and let the load stand for 1 hour. If it cannot be eliminated, please scrap it.
E10	Large charging /discharging temperature difference	△T(cell)>25℃(1s), stop discharging

E11	Charging fuse damaged	Hardware failed	Please scrap disposal.
E12	Discharging fuse damaged	Hardware failed	Please scrap disposal.
E13	Cell imbalance	The voltage error of cell too high	Please scrap disposal.
14E	Cell drop	The nickel strip break	Please scrap disposal.
E15	Configuration error	The configured parameters do not match the program default parameter range	Factory settings are abnormal, please contact after-sales.
E16	Charging over current	Wrong charger connected(Charger mismatch)	Do not connect to the power supply and let the load stand for 30 minutes before charging with the normal standard charger. If it cannot be eliminated, please scrap it.
E17	Under voltage first layer protection	Battery was fully discharged, Cell voltage <3.2V for 1 hour	Charging with standard charger, voltage > 46V
E18	Under voltage second layer protection	Battery was fully discharged, Battery voltage too low	Charging with standard charger, voltage > 40V
E19	Over voltage first layer protection	High battery voltage, cell voltage > 4.25V	Discharge treatment, voltage < 53. 5V
E20	Over voltage second layer protection	Battery voltage is too high, pack voltage > 56.5V	Discharge treatment, pack voltage < 52V
E21	Over current first layer protection	Discharge current > 25A, lasting for 10 seconds	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
E22	Over current second layer protection	Discharge current > 40A, lasting for 2 seconds	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
E23	Over current third layer protection	Discharge current > 60A, lasting for 320 milliseconds.	charge
E24	Over current fourth layer protection	Discharge current > 100A, lasting for 400 microseconds	charge
E25	Over legal charging temperature	T(cell) > 55℃(5s)	Recover if temperature lower than 50℃(5s)

E26	Over legal discharging temperature	T(cell) > 70℃(5s)	Recover if temperature lower than 65℃(5s)
E27	Charging under temperature	T(cell) < 0℃(5s)	Recover if temperature higher than 5℃(5s)
E28	Discharging under temperature	T(cell) < -15℃(5s)	Recover if temperature higher than -10℃(5s)
E29	MOSFET over heating	T(MOSFET)＞110℃	Recover if temperature lower than 80℃(1s) If it cannot be recovered, please scrap it
E29	MOSFET over heating	MOSFET damaged
E30	Large temperature difference	MCU temperature too high	Recover if temperature lower than 60℃(1s)
E31	Pre-discharge error	Lost communication with CAN bus and output current >1A	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be recovered, please scrap it.
E32	Impact event	Impact detected	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.

IoT Error Codes

IoT Error Code	Error code	Error name	Error cause	The solution
0000000000000001	/	/
0000000000000002	/	/
0000000000000008	18E	The throttle not at the original position	During self-test when power on, the meter detects that the throttle isn't at the original position.	Turn the throttle to original position. Check if the connections are loose. Change the throttle. Change the meter.
			The throttle signal wire and the power wire/the ground wire are short-circuited.
			The ground wire is open circuit.
			The sampling circuit of the meter is damaged.
			The throttle is damaged.
0000000000000010	10E	Left brake lever fault	Left brake fault	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.
0000000000000020	14E	Right brake lever fault	Right brake fault	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.
0000000000000040	19E	The left brake lever not at the original position	During self-test when power on, the meter	Turn the left brake lever to original position.

			detects that the left brake lever isn't at the original position.	Check if the connections are loose. Change the left brake lever. Change the meter.
			The left brake signal wire and the power wire/the ground wire are short-circuited.
			The sampling circuit of the meter is damaged.
			The left brake lever is damaged.
0000000000000080	20E	The right brake lever not at the original position	During self-test when power on, the meter detects that the right brake lever isn't at the original position.	Turn the right brake lever to original position. Check if the connections are loose. Change the right brake lever. Change the meter.
			The right brake signal wire and the power wire/the ground wire are short-circuited.
			The sampling circuit of the meter is damaged.
			The right brake lever is damaged.
0000000000000100	25E	The ECU heartbeat fault	The meter hasn't detected the ECU heartbeat for more than 5 minutes.	Check if the connection of the ECU is loose. Change the ECU.
0000000000000200	27E	The BMS heartbeat fault	The meter hasn't detected the BMS heartbeat for more than 5 minutes.	Check if the connection of the battery is loose. Change the battery.
0000000000000400	/	The meter heartbeat fault	The IoT hasn't detected the meter heartbeat for more than 5 minutes.	Check if the connection of the battery is loose. Change the battery.
0000000000000800	/	/
0000000000001000	/	/
0000000000002000	/	/
0000000000004000	/	/
0000000000008000	/	/
0000000000010000	E25	Over legal charging temperature	T(cell) > 55℃(5s)	Recover if temperature lower than 50℃(5s)

0000000000020000	E26	Over legal discharging temperature	T(cell) > 70℃(5s)	Recover if temperature lower than 65℃(5s)
0000000000040000	E27	Charging under temperature	T(cell) < 0℃(5s)	Recover if temperature higher than 5℃(5s)
0000000000080000	E28	Discharging under temperature	T(cell) < -15℃(5s)	Recover if temperature higher than -10℃(5s)
0000000000100000	E29	MOSFET over heating	T(MOSFET)＞110℃	Recover if temperature lower than 80℃(1s) If it cannot be recovered, please scrap it
0000000000100000	E29	MOSFET over heating	MOSFET damaged
0000000000200000	E30	Large temperature difference	MCU temperature too high	Recover if temperature lower than 60℃(1s)
0000000000400000	E31	Pre-discharge error	Lost communication with CAN bus and output current >1A	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be recovered, please scrap it.
0000000000800000	E32	Impact event	Impact detected	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
0000000001000000	E17	Under voltage first layer protection	Battery was fully discharged, Cell voltage <3.2V for 1 hour	Charging with standard charger, voltage > 46V
0000000002000000	E18	Under voltage second layer protection	Battery was fully discharged, Battery voltage too low	Charging with standard charger, voltage > 40V
0000000004000000	E19	Over voltage first layer protection	High battery voltage, cell voltage > 4.25V	Discharge treatment, voltage < 53.5V
0000000008000000	E20	Over voltage second layer protection	Battery voltage is too high, pack voltage > 56.5V	Discharge treatment, pack voltage < 52V
0000000010000000	E21	Over current first layer protection	Discharge current > 25A, lasting for 10 seconds	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
0000000020000000	E22	Over current second layer protection	Discharge current > 40A, lasting for 2 seconds	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.

0000000040000000	E23	Over current third layer protection	Discharge current > 60A, lasting for 320 milliseconds.	charge
0000000080000000	E24	Over current fourth layer protection	Discharge current > 100A, lasting for 400 microseconds	charge
0000000100000000	E09	Cell temperature sensor damage	Sensor damaged or wires was dropped, both RCL1 & RCL2 were damaged	Please scrap disposal.
0000000200000000	E10	Large charging /discharging temperature difference	△T(cell)>15℃(1s), don’t allow charging	Do not connect to the power supply and let the load stand for 1 hour. If it cannot be eliminated, please scrap it.
0000000200000000	E10	Large charging /discharging temperature difference	△T(cell)>25℃(1s), stop discharging
0000000400000000	E11	Charging fuse damaged	Hardware failed	Please scrap disposal.
0000000800000000	E12	Discharging fuse damaged	Hardware failed	Please scrap disposal.
0000001000000000	E13	Cell imbalance	The voltage error of cell too high	Please scrap disposal.
0000002000000000	14E	Cell drop	The nickel strip break	Please scrap disposal.
0000004000000000	E15	Configuration error	The configured parameters do not match the program default parameter range	Factory settings are abnormal, please contact after-sales.
0000008000000000	E16	Charging over current	Wrong charger connected(Charger mismatch)	Do not connect to the power supply and let the load stand for 3 minutes before charging with the normal standard charger. If it cannot be eliminated, please scrap it.
0000010000000000	E01	Failed to communicate with protection chip	protection chip damaged	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
0000010000000000	E01	Failed to communicate with protection chip	hardware of communication bus damaged
0000020000000000	E02	Metering device damage	Hardware failed	Press the switch for 15 seconds to start the restart function. If it cannot be eliminated, please scrap it.

0000040000000000	E03	Flash chip damaged	Hardware failed	Please scrap disposal.
0000080000000000	E04	Drop event	Free fall detected	Do not connect the power supply and let the load stand for 3 minutes. If it cannot be eliminated, please scrap it.
0000100000000000	E05	Charge MOSFET damage	Current sensor damaged	Please scrap disposal.
0000100000000000	E05	Charge MOSFET damage	MOSFET damaged	Please scrap disposal.
0000200000000000	E06	Discharge MOSFET damage	Current sensor damaged	Please scrap disposal.
0000200000000000	E06	Discharge MOSFET damage	MOSFET damaged	Please scrap disposal.
0000400000000000	E07	MCU ROM damage	Hardware failed	Please scrap disposal.
0000800000000000	E08	MCU RAM damage	Hardware failed	Please scrap disposal.
0001000000000000	02E	Battery under voltage	The ECU detects that the battery voltage is under 43V.	Charge the battery, the error code will go away. Change the ECU. Change the battery.
			The sampling circuit of the ECU is damaged.
			The battery is damaged.
0002000000000000	15E	Lost firmware of the ECU	The ECU failed to update the program.	Re-send the update command. Change the ECU.
0004000000000000	05E	ECU upper MOSFET damaged	During self-test when unlocking, the ECU detects the upper MOSFET is damaged or breakdown.	Change the ECU.
0008000000000000	06E	ECU lower MOSFET damaged	During self-test when unlocking, the ECU detects the lower MOSFET is damaged or breakdown.	Change the ECU.
0010000000000000	07E	Motor hall fault	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.
0010000000000000	07E	Motor hall fault	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.

Change the ECU.

Any two of motor hall wires A/B/C are shorted

to each other.

The hall sampling circuit of the ECU is

damaged.

0020000000000000

03E

Motor phase line fault

During self-test when unlocking, the ECU detects the motor phase line is

short-circuited.

Check if the connection between the ECU and the motor is short- circuited.
Change the Motor
Change the ECU.

0040000000000000

08E

Motor over-heated

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.

0080000000000000

04E

Motor stalling

When the motor isn't rotating, the drive current is higher than 6A for 2.5 seconds.

Dismiss locked-rotor state.
Check if the connection between the ECU and the motor is short- circuited.
Change the Motor
Change the ECU.

0100000000000000

0200000000000000

30E

Torque sensor error *(EB100)

There is a short circuit between the signal wire of the torque sensor and the power wire

or the ground wire

Check if the connections are loose.
Change the torque sensor
Change the ECU.

			Open circuit of signal line of torque sensor
			Torque sensor fault
0400000000000000	/	/
0800000000000000	/	/
1000000000000000	/	/
2000000000000000	/	/
4000000000000000	/	/
8000000000000000	/	/

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