Alerts
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| Signal Name | Description | Condition | Impact |
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The battery management system (BMS) detects a missing, incorrect, or unsupported part number.
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The BMS detects an unexpected part number.
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The BMS is unable to initialize parameters related to printed circuit board assembly (PCBA) configuration.
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The battery management system (BMS) cannot measure one or more stack voltages.
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The BMS detects it cannot measure one or more stack voltages.
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Inability to charge.
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The battery management system (BMS) cannot measure the temperature on any module.
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A battery monitoring board (BMB) detects that both thermistors on a module are reporting out-of-bounds temperatures.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects that the shunt is missing (MIA).
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The BMS does not receive one or more expected CAN messages from the shunt.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects a mismatch between actual and commanded fast charge (FC) contactor set state. .
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High voltage processor (HVP) comms are ok and fast charge contactors were closed and fast charge contactors are now open / opening and BMS_fcContactorRequest has remained closed.
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DC charging is terminated.
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The battery management system (BMS) detects that a thermistor on a module is shorted or railed.
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A battery monitoring board (BMB) detects that any of the thermistors on a module is reporting an out-of-bounds temperature.
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The vehicle operates normally with only one thermistor on the module.
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The battery management system (BMS) detects conditions that indicate a potential propagating thermal event.
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Any detection mechanism (e.g. VoltageLoss, VoltageDeviation) has set and is enabled to signal a suspected thermal event.
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Pack may remain inoperable and should be serviced according to proper procedures.
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The battery management system (BMS) forced pack contactors open due to one or more alerts.
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One or more BMS alerts that force pack contactors are open.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) has detected that the shunt is unavailable (SNA).
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The BMS does not receive consecutive current readings from the high voltage processor (HVP).
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects that there is a coolant flood in the high voltage battery.
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The BMS detects that isolation dropped below the minimum threshold when pack contactors are open and the low coolant signal is active.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects that there is low high voltage isolation when pack contactors are opened.
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The BMS detects that isolation dropped below the minimum threshold when pack contactors were open.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) cannot communicate with all of the battery monitoring boards (BMBs).
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A communication issue with the BMB daisy chain is detected.
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This alert is primarily informational, and may indicate a loss of BMB sensor data
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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).
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The BMS has not received one or more expected CAN messages from the DI.
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Power is reduced.
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The battery management system (BMS) detects that the charge port (CP) is missing (MIA).
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The BMS has not received one or more expected CAN messages from the CP.
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Inability to charge, drive, or support the low voltage (LV) system
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The Battery Management System (BMS) detects an irrational thermistor.
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A thermistor reports a temperature that the BMS considers irrational.
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This alert is primarily informational.
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The battery management system (BMS) detects that the charge port (CP) is missing (MIA). .
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The BMS has not received one or more expected CAN messages from the CP.
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Inability to charge, drive, or support the low voltage (LV) system
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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.
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The battery management system (BMS) does not receive the expected CAN messages from the vehicle gateway (GTW) during a certain amount of time.
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Battery management system (BMS) functions that depend on messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.
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The battery management system (BMS) detects that vehicle controller front (VCFRONT) is missing (MIA) while the vehicle is not in a drive state.
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The BMS has not received one more expected CAN messages from VCFRONT while not in drive.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects that vehicle controller front (VCFRONT) is missing (MIA) while the vehicle is in driving.
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The BMS has not received one more expected CAN messages from VCFRONT while in drive.
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Inability to charge, drive, or support the low voltage (LV) system
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The Battery Management System (BMS) detects a Force External Isolation Test (FEIM) is required but is blocked due to a condition on the vehicle.
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The BMS detects the FEIM is blocked due to another condition on the vehicle. Alert log signal data should provide more information on the specific reason.
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The vehicle may be unable to drive.
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