Alerts
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| 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.
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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.
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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
|