Alerts

Alerts

Signal Name Description Condition Impact Important
The high-side pyro was deployed by the high-side passive pyro circuit.
Firmware detects that the high-side passive pyro circuit is actively deploying the high-side pyro.
High-side pack High Voltage will be blocked, charge and drive may be unavailable.
No
Positive contactor is expected to be open but aux reports them as still closed.
Contactor state timed out of the OPENING state (and transitioned to AUX_MISMATCH) due to aux reporting the contactor as still closed.
Firmware will try to open the contactor again.
No
The HV Compressor (CMPT) High Voltage Interlock Loop (HVIL) is reported as open, breaking the overall High Voltage Battery (HVBATT) HVIL.
The CMPT HVIL is reported as open.
Vehicle may be unable to enter drive and may be unable to charge.
No
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).
The PM HVIL status signal is not received by HVBATT within its message cycle time.
Vehicle may be unable to enter drive and may be unable to charge.
No
The Pedal Monitor (PM) High Voltage Interlock Loop (HVIL) is reporting as unknown, breaking the overall High Voltage Battery (HVBATT) HVIL.
The PM HVIL is reported as unknown.
Vehicle may be unable to enter drive and may be unable to charge.
No
The Pedal Monitor (PM) High Voltage Interlock Loop (HVIL) is reported as open, breaking the overall High Voltage Battery (HVBATT) HVIL.
The PM HVIL is reported as open.
Vehicle may be unable to enter drive and may be unable to charge.
No
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).
The DI HVIL status signal is not received by HVBATT within its message cycle time.
Vehicle may be unable to enter drive and may be unable to charge.
No
High-side pyro squib is open circuit.
The measured resistance between high-side pyro-P and pyro-N is saturated.
High-side pack will not be able to come online.
No
The Drive Inverter (DI) High Voltage Interlock Loop (HVIL) connection is open, breaking High Voltage Battery (HVBATT) HVIL.
The DI HVIL is reported as open.
Vehicle may be unable to enter drive and may be unable to charge.
No
Warns if the high-side shunt current (discharge or charge) is above max current limit.
The high-side shunt current (discharge or charge) is above max current limit.
The pyro disconnect will blow
No
The high side shunt thermistor is not reporting as expected. Vehicle may be unable to drive or DC charge.
High side shunt thermistor reading is open circuit.
Vehicle may be unable to drive. DC charging may be limited or unavailable.
No
The Battery Management System (BMS) has detected an error with the high-side shunt measurement circuit.
Communications with the shunt measurement circuit are lost.
Drive power is reduced to avoid unintended pyro fuse deployment.
No
Warns if the low-side shunt current (discharge or charge) is above max current limit.
The low-side shunt current (discharge or charge) is above max current limit.
The pyro disconnect will blow
No
The low side shunt thermistor is not reporting as expected. Vehicle may be unable to drive or DC charge.
Low side shunt thermistor reading is open circuit.
Vehicle may be unable to drive. DC charging may be limited or unavailable.
No
A communication interruption has been detected in the Battery Monitoring Board (BMB) chain
A communication issue with the BMB daisy chain is detected
May indicate a loss of BMB sensor data
No
High voltage isolation is too low for the pack to be online
Isolation is measured to be below the alert threshold while pack contactors are closed
Pack may not come online
No
The high-side pyro was deployed, and the duration of the deployment pulse was measured.
The high-side pyro was either actively or passively deployed.
This alert is primarily informational and for logging purposes. No expected impact on vehicle functionality.
No
Negative contactor is expected to be open but aux reports them as still closed.
Contactor state timed out of the OPENING state (and transitioned to AUX_MISMATCH) due to aux reporting the contactor as still closed.
Firmware will try to open the contactor again.
No
The Battery Management System (BMS) has detected an error with the low-side shunt measurement circuit.
Communications with the shunt measurement circuit are lost.
Drive power is reduced to avoid unintended pyro fuse deployment.
No
FC contactors were blocked from opening due to high current. Pyro deployed instead.
Charge current is above threshold while trying to open FC contactors.
The positive and negative pyro fuses will be deployed.
No