Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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High voltage isolation dropped under threshold in many drive sessions.
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Isolation or isolation degradation alert is set many times
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Vehicle will be unable to restart
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The BMS has detected isolation failure conditions in several drive sessions.
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Isolation or isolation degradation alert is set in several drive sessions
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Vehicle may be unable to restart
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The battery management system (BMS) detects that the high voltage (HV) isolation contactor closed below the warning threshold.
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The BMS detects that the HV isolation was below the warning threshold when pack contactors closed.
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This alert indicates that HV isolation is low, but above the sufficient level for vehicle operation.
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The battery management system (BMS) detects that high voltage (HV) isolation is too low while pack contactors are closed.
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The BMS has detects that HV isolation is below the warning threshold while contactors are closed.
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Inability to charge, drive, or support the low voltage (LV) system
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The high-side pyro was deployed, and the duration of the deployment pulse was measured.
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The high-side pyro was either actively or passively deployed.
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This alert is primarily informational and for logging purposes. No expected impact on vehicle functionality.
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The high-side pyro was deployed by the high-side passive pyro circuit.
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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.
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The high-side pyro was deployed by firmware.
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The high-side pyro was deployed by firmware.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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There was an attempt to deploy the high-side pyro, but it was unsuccessful.
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The firmware could not successfully trigger a high-side pyro deployment or there was an attempt to deploy the high-side pyro while the deployed test was actively running for the high-side pyro.
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The vehicle may not drive or charge.
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High-side pyro squib resistance is too low.
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The measured resistance between high-side pyro-P and pyro-N is lower than the minimum limit.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro squib resistance is too high.
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The measured resistance between high-side pyro-P and pyro-N is higher than the maximum limit.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro squib is open circuit.
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The measured resistance between high-side pyro-P and pyro-N is saturated.
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High-side pack will not be able to come online.
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High-side pyro low-side switch (SR FET) is non-functional.
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High-side pyro-P voltage does not rise to within a margin of the energy reserve voltage when the SR FET is enabled.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro high-side switch (SF FET) is non-functional.
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High-side pyro-P voltage does not rise to within a margin of the energy reserve voltage when the SF FET is enabled.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro squib failed the resistance test.
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The high-side pyro failed the resistance test by entering an invalid case, indicating that the pyro circuit is compromised and needs to be replaced.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro leakage current exceeds tolerance shortly following the resistance test.
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High-side pyro leakage current exceeds tolerance shortly following the resistance test.
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This alert is primarily informational and for logging purposes. No expected impact on vehicle functionality.
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High-side pyro leakage current exceeds tolerance shortly following the low-side switch (SR FET) test.
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High-side pyro leakage current exceeds tolerance shortly following the SR FET test.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro leakage current exceeds tolerance shortly following the high-side switch (SF FET) test.
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High-side pyro leakage current exceeds tolerance shortly following the SF FET test.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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High-side pyro leakage current exceeds tolerance.
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High-side pyro leakage current exceeds tolerance.
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High-side pack High Voltage will be blocked, charge and drive may be unavailable.
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The low-side pyro was deployed, and the duration of the deployment pulse was measured.
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The low-side pyro was either actively or passively deployed.
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This alert is primarily informational and for logging purposes. No expected impact on vehicle functionality.
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The low-side pyro was deployed by the low-side passive pyro circuit.
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Firmware detects that the low-side passive pyro circuit is actively deploying the low-side pyro.
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Low-side pack High Voltage will be blocked, charge and drive may be unavailable.
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