Alerts
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| Signal Name | Description | Condition | Impact |
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One or more of the messages the vehicle controller receives periodically from the front drive inverter (DIF) electronic control unit (ECU) is not received, indicating the DIF ECU may be unavailable (MIA).
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One or more of the expected messages from the DIF ECU is not received.
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Vehicle speed and power may be limited. Thermal management system features depending on DIF functionality may be limited or unavailable.
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The Primary Electric Power Steering (PEPS) detected the Rear Steering Actuator (RSA) is not functioning as expected.
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PEPS detected the RSA is not functioning as expected. See alert log signal data for more information.
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Rear steering may be unavailable during the current drive cycle.
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DCDC converter 12V support has faulted.
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DCDC converter 12V support has faulted
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Inability to support 12V system
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PCS DCDC temperature sensor is reporting irrational value.
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DCDC converter temperature is outside expected range for more than one second
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Reduced available DCDC output power
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PCS detects that at least one bootloader has mismatched CRC.
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Power conversion system application detects that calculated bootloader CRC is unexpected
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Inability to update, inability to boot AC charger
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PCS detects the HV bus impedance is higher than the expected value.
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DCDC converter detects high impedance on HV bus when precharging (capacitance too low)
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS detects the HV bus impedance is lower than the expected value.
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DCDC converter detects low impedance on HV bus when precharging (short circuit or capacitance too high)
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC is not able to regulate LV output.
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DCDC converter 12V support regulator detects irrational condition
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Inability to support 12V system
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PCS DCDC failed to precharge HV bus to the target voltage.
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DCDC converter was unable to precharge HV bus when commanded to
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC hardware enable line does not match CAN signal.
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DCDC converter detects that sensed enable hardline state does not match state reported on CAN for more than five seconds
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC detects its temperature is too hot to continue operation.
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DCDC converter temperature exceeds overtemperature threshold for more than one second
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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The Power Conversion System (PCS) electronic control unit (ECU) detects the DCDC converter reaches the maximum output power based on the hardware capability.
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The PCS ECU detects the DCDC converter reaches the maximum output power for more than 3 seconds.
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The low voltage (LV) battery may not charge properly, and the LV bus may begin loadshedding.
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PCS DCDC detects a fault condition in its CLA co-processor.
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DCDC converter control law accelerator detects irrational condition
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC detects resonant tank over current event.
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DCDC converter detects resonant tank current exceeds overcurrent threshold
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC detects 12V bus voltage is higher than the safety threshold to continue its operation.
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DCDC converter detects that low voltage bus voltage exceeds overvoltage threshold
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC detects 12V bus voltage is lower than the safety threshold to continue its operation.
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DCDC converter detects that low voltage bus voltage is below undervoltage threshold
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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The AC Line 2 to Neutral voltage has an irrationally high DC offset.
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The AC Line 2 to Neutral voltage has an irrationally high DC offset
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AC Charging may be limited or unavailable.
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PCS DCDC detects pack voltage is higher than the safety threshold to continue its operation.
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DCDC converter detects that high voltage bus voltage exceeds overvoltage threshold
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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PCS DCDC detects pack voltage is lower than the safety threshold to continue its 12V support operation.
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DCDC converter detects that high voltage bus voltage is below undervoltage threshold
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Inability to precharge HV bus, inability to support 12V system, inability to drive
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The Power Conversion System (PCS) electronic control unit (ECU) detects excessive transients on the electrical grid, causing AC charging to be limited or unavailable.
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The PCS ECU detects excessive transients on the electrical grid, causing one or more charger phases to enter an error state.
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The rate of AC charging may be reduced, or AC charging may be unavailable.
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