Battery management system alerts
Browse 219 BMS alert codes and open an entry for its description and recorded conditions.
BMS alert codes
Showing 51–100 of 219
- BMS_a064 — SW SOC Imbalance BMS_a064_SW_SOC_Imbalance The Battery Management System (BMS) detects a possible state of charge (SOC) imbalance.
- BMS_a065 — SW CAC Imbalance BMS_a065_SW_CAC_Imbalance The Calculated Amp-hour Capacity (CAC) difference of bricks within a module exceeds the acceptable threshold. This results in reduced battery performance and limits maximum range.
- BMS_a066 — SOC Imbalance Warning BMS_a066_SOC_Imbalance_Warning This alert is an early warning for a064 SOC Imbalance, which limits the battery's max SOC. It triggers with a lower threshold than SOC imbalance
- BMS_a067 — CAC Imbalance Limiting BMS_a067_CAC_Imbalance_Limiting The Battery Management System (BMS) detects that the calculated Amp-hour capacity (CAC) difference between bricks within a single module exceeds the acceptable threshold, which may reduce battery performance.
- BMS_a068 — CAC Imbalance Limp BMS_a068_CAC_Imbalance_Limp Calculated Amp-hour Capacity (CAC) difference of bricks within a module exceeds acceptable threshold. This results in reduced battery performance and limits maximum range. Vehicle enters Battery Management System (BMS) limp mode.
- BMS_a069 — SW Low Power BMS_a069_SW_Low_Power The BMS detects that the state of charge (SOC) of the high voltage (HV) battery is too low to support driving.
- BMS_a070 — Brick V Imbalance Limiting BMS_a070_BrickV_Imbalance_Limiting The difference between max brick voltage and min brick voltage is greater than the allowed threshold
- BMS_a071 — SW SM Trans Con Not Met BMS_a071_SW_SM_TransCon_Not_Met The Battery Management System (BMS) cannot transition into the requested state because of a blocking condition.
- BMS_a072 — Module Brick Split BMS_a072_Module_Brick_Split a module with a brick split condition has been detected. This results in reduced battery performance and limits maximum range
- BMS_a073 — Unexpected Loss Of Lv BMS_a073_Unexpected_Loss_Of_Lv Unexpected loss of low-voltage power
- BMS_a074 — Max Charge Level Reduced BMS_a074_Max_Charge_Level_Reduced The maximum charge level of the battery is limited by one or more alerts.
- BMS_a075 — SW Chg Disable Failure BMS_a075_SW_Chg_Disable_Failure The Battery Management System (BMS) has detected a condition that prevents it from disabling the charge session.
- BMS_a076 — SW Dch While Charging BMS_a076_SW_Dch_While_Charging The Battery Management System (BMS) detects that the high voltage (HV) battery is not charging enough while in a charging state.
- BMS_a077 — SW Charger Regulation BMS_a077_SW_Charger_Regulation The Battery Management System (BMS) has stopped charging because the maximum brick voltage within the High Voltage (HV) battery or the charge current exceeded the target values for too long.
- BMS_a078 — Rapid Dch While Charging BMS_a078_Rapid_Dch_While_Charging The BMS has detected high discharge current during DC charge session
- BMS_a079 — Max Charge Level Exceeded BMS_a079_Max_Charge_Level_Exceeded The maximum charge level of the high voltage (HV) battery is exceeded.
- BMS_a080 — SW Pack Ctr Impedance BMS_a080_SW_Pack_Ctr_Impedance Estimated contactor impedance exceeds BMS limits
- BMS_a081 — SW Ctr Close Blocked BMS_a081_SW_Ctr_Close_Blocked The Battery Management System (BMS) has prevented pack contactors from closing due to one or more other alerts.
- BMS_a082 — SW Ctr Force Open BMS_a082_SW_Ctr_Force_Open The Battery Management System (BMS) forced pack contactors open due to one or more alerts.
- BMS_a083 — SW Ctr Close Failure BMS_a083_SW_Ctr_Close_Failure The Battery Management System (BMS) was unable to close pack contactors.
- BMS_a084 — SW Sleep Wake Aborted BMS_a084_SW_Sleep_Wake_Aborted Diagnostic alert for sleep and wake transitions
- BMS_a085 — SW Pack Contactor Mismatch BMS_a085_SW_Pack_Contactor_Mismatch The Battery Management System (BMS) detects a mismatch between the actual and commanded pack contactor set state.
- BMS_a086 — SW FC Contactor Mismatch BMS_a086_SW_FC_Contactor_Mismatch The Battery Management System (BMS) detects a mismatch between actual and commanded fast charge (FC) contactor set state.
- BMS_a087 — SW Feim Test Blocked BMS_a087_SW_Feim_Test_Blocked The Battery Management System (BMS) detects a Force External Isolation Test (FEIM) is required but is blocked due to a condition on the vehicle.
- BMS_a088 — SW Vc Front MIA In Drive BMS_a088_SW_VcFront_MIA_InDrive The Battery Management System (BMS) detects that vehicle controller front (VCFRONT) is missing (MIA) while the vehicle is in driving.
- BMS_a089 — SW Vc Front MIA BMS_a089_SW_VcFront_MIA The Battery Management System (BMS) detects that vehicle controller front (VCFRONT) is missing (MIA) while the vehicle is not in a drive state.
- BMS_a090 — SW Gateway MIA BMS_a090_SW_Gateway_MIA The Battery Management System (BMS) detects the vehicle gateway (GTW) as unavailable (MIA). BMS functions that depend on messages from the GTW may be unavailable.
- BMS_a091 — SW Charge Port MIA BMS_a091_SW_ChargePort_MIA The Battery Management System (BMS) detects that the charge port (CP) is missing (MIA).
- BMS_a092 — SW Charge Port Mia On Hvs BMS_a092_SW_ChargePort_Mia_On_Hvs The Battery Management System (BMS) detects that the charge port (CP) is missing (MIA).
- BMS_a094 — SW Drive Inverter MIA BMS_a094_SW_Drive_Inverter_MIA The Battery Management System (BMS) does not receive one or more expected controller area network (CAN) messages from the drive inverter (DI) and has reported it as missing (MIA).
- BMS_a095 — SW UI MIA BMS_a095_SW_UI_MIA The Battery Management System (BMS) detects the touchscreen user interface (UI) as unavailable (MIA) because it is not receiving messages. It is expected behavior for this alert to be present during a state transition (for example, when th…
- BMS_a097 — SW BMB Over CAN Communication BMS_a097_SW_BMB_Over_CAN_Communication The Battery Management System (BMS) did not receive a synchronous set of battery monitoring board (BMB) data through the BMB-over-CAN interface.
- BMS_a098 — SW BMB Data Integrity Loss BMS_a098_SW_BMB_Data_Integrity_Loss The Battery Management System (BMS) has lost data integrity due to a battery monitoring board (BMB) chain double break.
- BMS_a099 — SW BMB Communication BMS_a099_SW_BMB_Communication The Battery Management System (BMS) cannot communicate with all of the battery monitoring boards (BMBs).
- BMS_a100 — Thermal Event Suspected BMS_a100_ThermalEventSuspected The Battery Management System (BMS) detects conditions that indicate a potential propagating thermal event.
- BMS_a105 — SW One Module Tsense BMS_a105_SW_One_Module_Tsense The Battery Management System (BMS) detects that a thermistor on a module is shorted or railed.
- BMS_a106 — SW All Module Tsense BMS_a106_SW_All_Module_Tsense The Battery Management System (BMS) cannot measure the temperature on any module.
- BMS_a107 — SW Stack Voltage MIA BMS_a107_SW_Stack_Voltage_MIA The Battery Management System (BMS) cannot measure one or more stack voltages.
- BMS_a108 — SW BMB Device OT BMS_a108_SW_BMB_Device_OT BMS has detected that one or more BMB devices exceed the die over temperature threshold
- BMS_a109 — HW BMB Mute Status Mismatch BMS_a109_HW_BMB_Mute_Status_Mismatch A battery monitoring board (BMB) device has a mute status that does not align with the mute or unmute command sent by the Battery Management System (BMS).
- BMS_a110 — Life Model Avg Offset Change BMS_a110_LifeModel_AvgOffset_Change The Battery Management System (BMS) detects a large filtered average offset CAC update. Indicates a large estimation error between life model CAC and the measured average CAC.
- BMS_a111 — Life Model Spread Change BMS_a111_LifeModel_Spread_Change The Battery Management System (BMS) detects a large step change in filtered spread offset CAC for one or more bricks.
- BMS_a112 — Life Model Discontinuity BMS_a112_LifeModel_Discontinuity The BMS battery life model has experienced a discontinuous jump. CACs were maintained by recomputing offsets.
- BMS_a115 — Energy Rubberbanding Reset BMS_a115_Energy_Rubberbanding_Reset The BMS provided SOEs for the UI have been reset to the actual SOEs
- BMS_a117 — SW Delta SOC Weak Short BMS_a117_SW_Delta_SOC_Weak_Short A given brick has an alpha signal below the alert alpha threshold.
- BMS_a118 — SW Delta SOC Weak Short Warning BMS_a118_SW_Delta_SOC_Weak_Short_Warning Early warning that a given brick may be developing an alpha signal below the alert alpha threshold.
- BMS_a119 — Fast Open Vsh Detected BMS_a119_Fast_Open_Vsh_Detected Either the BMS or HVP has detected an open circuit voltage sense harness (VSH).
- BMS_a120 — SW Delta SOC User Warning BMS_a120_SW_Delta_SOC_User_Warning The battery management system (BMS) detects a condition internal to the high voltage (HV) battery that requires notifying the customer of potential future impact.
- BMS_a121 — SW NVRAM Config Error BMS_a121_SW_NVRAM_Config_Error Indicate that NVRAM data was not initialized because of a config error
- BMS_a122 — SW BMS Therm Irrational BMS_a122_SW_BMS_Therm_Irrational The Battery Management System (BMS) detects an irrational thermistor.