Gen2/Error Codes

Switch the dash display 1 to the error code display to see a cycling list of the 2-digit error codes currently in effect.

Check the official manual for what they mean; some are normal safety interlocks and others are about various systems.

The following are paraphrased interpretations of those codes with (progressively) some basic troubleshooting leads to follow.

Error Codes

Code	Description (official)	Manual Section	Community Notes
0	No Error		Almost abnormally normal!
1	High Throttle	Throttle	Likely throttle connection or potentiometer issue
2	Motor Temperature Warning Stage 1	Motor	Near upper temperature limit; corresponds to blinking temperature light on the dash
3	Motor Temperature Warning Stage 2	Motor	Reached upper temperature limit; might involve cutbacks or shutdown
4	Controller Temperature Warning Stage 1	Controller	Near upper temperature limit; corresponds to blinking temperature light on the dash
5	Controller Temperature Warning Stage 2	Controller	Reached upper temperature limit; might involve cutbacks or shutdown
6	BMS Throttle Enable Wire Error	Throttle
7	Low Battery Voltage	Contactor Limits	Should only happen near/below 0% SoC or 84V dynamic pack voltage. This can reset for a bit if the bike is powered off for a few minutes; charge ASAP.
8	High Battery Temperature Status	Contactor Limits	Can happen during a >4kW charge or while operating at speed in a hot environment. Reduce battery load!
9	Low Battery Temperature Status	Contactor Limits	Can happen in winter storage; will prevent charging. Use a space heater or bring the bike inside ASAP to prevent battery damage.
10	Battery Temperature Warning Stage 1	Contactor Limits
11	Battery Temperature Warning Stage 2	Contactor Limits
12	Reserve Partition Warning	MBB
13	Reserve Switch Warning	MBB
14	Safety Override Active	MBB
15	Charger Attached But Not Charging	Charger
16	CIB Contactor Compromised	Contactor
17	Charger Error	Charger
18	Battery Temperature Sensor Fault	BMS
19	High Charge Current	Contactor	The contactor limit for charging was reached and the BMS opened the contactor. Key the bike off and on to reset.
20	BMS Low Isolation	BMS
21	Board Vpack Error	BMS
22	Board Temperature Error	MBB or BMS
23	Post Error	MBB or BMS	Power-On Self Test diagnostic result
24	Startup Error	MBB or BMS	Firmware boot diagnostic result
25	Contactor Open Warning	Contactor	This indicates the contactor is open. This may be appropriate given what safety interlocks are in play.
26	Contactor Welded Error	Contactor	Only 2013 models have contactors that can realistically weld shut The code indicates battery voltage on the power harness or bus when there shouldn't be any.
27	Precharge Error	Precharge	Indicates bus voltage didn't climb enough in the required time period to close the contactor safely. Try keying the bike off and on again over a period of a few seconds to retry.
28	BMS Isolation Fault	BMS	Indicates any kind of ground indication as measured by various BMS circuits.
29	BMS Isolation Danger	BMS	Indicates a ground indication as measured by various BMS circuits. The BMS protects itself by opening the contactor.
30	BMS CAN Error	BMS	CAN bus error to/from the BMS, as reported by the MBB?
31	SEVCON CAN Error	Controller	CAN bus error to/from the Sevcon controller, as reported by the MBB?
32	Module Variance Too High	BMS	Indicates that a module within the power pack is varying too much from its siblings (voltage? current?). Provide a balancing charge with the onboard charger or any <0.4C charger.
33	SEVCON Error Turn Off	Controller
34	Charge Error Turn Off	Charger
35	Loopback Error	Power Tank	The connector for BMS1 (Power Tank or Power Pack Module) does not have a connected BMS or a blanking plug with loopback wiring installed.
36	Board 5V Error	MBB	MBB fault providing 5V micro-power (what's affected?)
37	Board 3.3V Error	MBB	MBB fault providing 3.3V micro-power Pre-2017 OBD-II affected - otherwise just a type of sensing feedback
38	Idle Turn Off	MBB	The MBB timeout for detecting an idle control state has been activated, opening the contactor. Reset by keying the bike off and on.
39	Throttle Out Of Range Disable	Throttle	The throttle's electric signal safeguard is active
40	BMS Throttle En Wire Disable	Throttle	The throttle's enable wire safeguard(?) is active
41	Low Battery Voltage Disable	Contactor Limits	The low battery voltage safeguard is active
42	High Battery Temperature Status Disable	Contactor Limits	The high battery temperature safeguard is active
43	Low Battery Temperature Status Disable	Contactor Limits	The low battery temperature safeguard is active
44	Kill Switch Disable	MBB	The kill switch safeguard is active
45	Kickstand Switch Disable	MBB	The kickstand switch safeguard is active
46	BMS Charger Connected Disable	BMS	The BMS checks whether the charger is connected, and this check failed.
47	MBB Charger Connected Disable	MBB	The MBB checks whether the charger is connected, and this check failed.
48	SEVCON Startup Disable	Controller	The Sevcon controller startup failed and the resulting safeguard is active.
49	Contactor Open Disable	Contactor	The contactor is open because of some safeguard (like 25 but not a normal indication). Check other error codes and reset by keying the bike off and on. Check logs later.
50	BMS Self-Test Error	BMS	The BMS runs a self-test to decide whether it's safe to operate, and it failed. Check BMS logs immediately.
51	BMS Self-Test Warning	BMS	The BMS runs a self-test to decide whether it's safe to operate, and it succeeded but had a note. Check BMS logs.
52	Reserve Partition Disable	MBB	The MBB reserve storage partition(?) safeguard is active.
53	BMS Internal Disable	BMS	A BMS internal check failed and the resulting safeguard is active.
54	Internal Disable Error	MBB	An MBB internal check failed and the resulting safeguard is active.
55	Internal Fault Error	MBB	Could be anything?
56	Monolith Not Connected	BMS	BMS#0 is just undetectable (is this via CAN and voltage readings together?)
57	Module Did Not Connect	BMS	The contactor didn't close? Or something more basic about the BMS (main, power tank, or module) reporting the battery unready. Probably use the onboard charger to fix.
58	BMS Sensor Warning	BMS
59	BMS System Warning	BMS
60	Bike Configuration	MBB or BMS	There may be an error in the bike configuration settings applied to the MBB and BMS. Basically, they might have inconsistent model specifiers or battery size specifiers. This has also been reported for incompatible firmware versions between the MBB and BMS.