Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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The HV Compressor (CMPT) High Voltage Interlock Loop (HVIL) is reported as open, breaking the overall High Voltage Battery (HVBATT) HVIL.
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The CMPT HVIL is reported as open.
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Vehicle may be unable to enter drive and may be unable to charge.
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The Pedal Monitor (PM) High Voltage Interlock Loop (HVIL) status signal is not reporting to the High Voltage Battery (HVBATT) on the Controller Area Network (CAN).
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The PM HVIL status signal is not received by HVBATT within its message cycle time.
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Vehicle may be unable to enter drive and may be unable to charge.
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The Pedal Monitor (PM) High Voltage Interlock Loop (HVIL) is reporting as unknown, breaking the overall High Voltage Battery (HVBATT) HVIL.
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The PM HVIL is reported as unknown.
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Vehicle may be unable to enter drive and may be unable to charge.
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The Pedal Monitor (PM) High Voltage Interlock Loop (HVIL) is reported as open, breaking the overall High Voltage Battery (HVBATT) HVIL.
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The PM HVIL is reported as open.
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Vehicle may be unable to enter drive and may be unable to charge.
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The Drive Inverter (DI) High Voltage Interlock Loop (HVIL) status signal is not reporting to the High Voltage Battery (HVBATT) on the Controller Area Network (CAN).
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The DI HVIL status signal is not received by HVBATT within its message cycle time.
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Vehicle may be unable to enter drive and may be unable to charge.
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The Drive Inverter (DI) High Voltage Interlock Loop (HVIL) is reporting as unknown, breaking the overall High Voltage Battery (HVBATT) HVIL.
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The DI HVIL is reported as unknown.
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Vehicle may be unable to enter drive and may be unable to charge.
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The Drive Inverter (DI) High Voltage Interlock Loop (HVIL) connection is open, breaking High Voltage Battery (HVBATT) HVIL.
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The DI HVIL is reported as open.
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Vehicle may be unable to enter drive and may be unable to charge.
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Warns if the high-side shunt current (discharge or charge) is above max current limit.
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The high-side shunt current (discharge or charge) is above max current limit.
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The pyro disconnect will blow
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The high side shunt thermistor is not reporting as expected. Vehicle may be unable to drive or DC charge.
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High side shunt thermistor reading is open circuit.
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Vehicle may be unable to drive. DC charging may be limited or unavailable.
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The Battery Management System (BMS) has detected an error with the high-side shunt measurement circuit.
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Communications with the shunt measurement circuit are lost.
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Drive power is reduced to avoid unintended pyro fuse deployment.
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Warns if the low-side shunt current (discharge or charge) is above max current limit.
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The low-side shunt current (discharge or charge) is above max current limit.
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The pyro disconnect will blow
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The low side shunt thermistor is not reporting as expected. Vehicle may be unable to drive or DC charge.
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Low side shunt thermistor reading is open circuit.
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Vehicle may be unable to drive. DC charging may be limited or unavailable.
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A communication interruption has been detected in the Battery Monitoring Board (BMB) chain
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A communication issue with the BMB daisy chain is detected
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May indicate a loss of BMB sensor data
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High voltage isolation is too low for the pack to be online
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Isolation is measured to be below the alert threshold while pack contactors are closed
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Pack may not come online
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Negative contactor is expected to be open but aux reports them as still closed.
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Contactor state timed out of the OPENING state (and transitioned to AUX_MISMATCH) due to aux reporting the contactor as still closed.
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Firmware will try to open the contactor again.
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The Battery Management System (BMS) has detected an error with the low-side shunt measurement circuit.
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Communications with the shunt measurement circuit are lost.
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Drive power is reduced to avoid unintended pyro fuse deployment.
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FC contactors were blocked from opening due to high current. Pyro deployed instead.
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Charge current is above threshold while trying to open FC contactors.
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The positive and negative pyro fuses will be deployed.
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Pack contactors were blocked from opening due to high current. Pyro deployed instead.
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Pack current is above threshold while trying to open pack contactors.
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The positive and negative pyro fuses will be deployed.
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The low side shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default low side shunt TCR coefficients will be used and current measurement accuracy may be reduced.
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The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.
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The default low side shunt TCR coefficients will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.
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The programmed high side shunt bar resistance calibration is not being used for high voltage (HV) current sensing. The default high side shunt bar resistance will be used and current measurement accuracy may be reduced.
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The stored high side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.
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The default high side shunt bar resistance will be used for high voltage (HV) current sensing. High side shunt current measurement accuracy may be reduced.
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