Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Negative contactor is expected to be open but HV current is still present. Possible weld detected.
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Contactor state timed out of OPENING (and transitioned to AUX_MISMATCH) due to HV current not being low enough to open contactors.
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The pyro fuse may be deployed.
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The battery management system (BMS) detects that one or more temperature measurements are irrational.
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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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Positive 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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HVBATT detects that any module in the battery pack cannot measure temperature properly.
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A battery monitoring board (BMB) detects that all of the thermistors on a module are BAD or SNA.
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Inability to charge, drive, or support the low voltage (LV) system.
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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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HVBATT cannot measure the temperature on any module in the battery pack.
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All temperature sensors in the battery pack are reporting faulty measurement readings.
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Inability to charge, drive, or support the low voltage (LV) system.
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Negative contactor was blocked from opening due to high current. Pyro deployed instead.
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High voltage current is too high while attempting to open the contactor.
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The negative pyro fuse will be deployed.
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Positive contactor was blocked from opening due to high current. Pyro deployed instead.
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High voltage current is too high while attempting to open the contactor.
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The positive pyro fuse will be deployed.
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Positive contactor opened unexpectedly due to insufficient coil drive current.
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Contactor state exited ECONOMIZED because coil current was too low.
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Vehicle will stop charging.
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Tried to close negative contactor but failed because a voltage match was not maintained.
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Contactor state timed out of PULLED_IN because a voltage match was not maintained.
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Negative FC contactor will remain open.
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Tried to close positive contactor but failed because a voltage match was not maintained.
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Contactor state timed out of PULLED_IN because a voltage match was not maintained.
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Positive FC contactor will remain open.
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Tried to close negative contactor but failed because the coil drive current was too low.
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Contactor state timed out of PULLED_IN because of insufficient contactor coil current.
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Negative FC contactor will remain open.
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Tried to close positive contactor but failed because the coil drive current was too low.
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Contactor state timed out of PULLED_IN because of insufficient contactor coil current.
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Positive FC contactor will remain open.
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Did not try to close negative contactor because a voltage match was not achieved.
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Contactor state is OPEN and the PULLED_IN state has been blocked for more than 10s because a required HV voltage match has not been achieved.
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Negative FC contactor will remain open.
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A brick voltage is below minimum voltage limit.
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A brick voltage is below minimum voltage limit for X duration (in seconds)
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The conactors may open immdediately or pyro disconnect may blow
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Warns if the Energy reserve voltage supply is below minimum voltage threshold.
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The Energy reserve voltage supply is below minimum voltage threshold
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The pyro diagnostics may fail, the contactors will not close
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Warns if the low voltage battery is below minimum voltage threshold.
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The low voltage battery is below minimum voltage threshold
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The contactors may not remain closed
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Alerts if PyroLeakTest pyro diagnostic has cross warning threshold.
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PyroLeakTest sees an Aout outside of 15% tolerance when measuring leakage
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Customer Facing text to seek service immediately
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The vehicle detects a condition affecting one or more of the pyrotechnic (pyro) fuses.
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The diagnostic test on one or more of the pyro fuses is unsuccessful. This can indicate the pyro fuse has blown.
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The High Voltage (HV) contactors are not allowed to close.
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Warns if the shunt current reading is not avaialble.
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The shunt current reading is not avaialble
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Current readings are not avaialble
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