Alerts
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| Signal Name | Description | Condition | Impact |
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The torque production safety monitor has detected excess torque production and inhibited Drive Inverter (DIx) torque production for the remainder of the drive cycle.
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The torque production safety monitor has detected excess torque production and inhibited DIx torque production for the remainder of the drive cycle.
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The torque production safety monitor will inhibit torque and excess heat production for the remainder of the drive cycle.
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The drive interface (DI) electronic control unit (ECU) detects that the front drive interface (DIF) controller area network (CAN) node is missing (MIA).
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The DI ECU is not receiving the required feedback CAN messages from the DIF.
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The DI ECU is unable to monitor the state of the DIF.
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Drive Inverter Warning: Battery sensor bad.
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When HV bus is up, DI measured bus voltage very low or disagrees with BMS reported voltage
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Drive unit enters unit limp mode (see DI_a126_limpMode), faults (Model 3 only)
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Drive Inverter Warning: Battery under voltage.
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HV bus voltage (refer to busVoltage) drops below lower voltage threshold (refer to busHighLimit)
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Unable to produce torque/power from drive unit
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Drive Inverter Warning: Battery over voltage detected in software.
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HV bus voltage (refer to busVoltage) exceeds upper voltage theshold (refer to busHighLimit)
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Unable to produce torque/power from drive unit
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Drive Inverter Warning: Phase current imbalance.
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Imbalanced phase currents detected. See payload signals for reason of trigger
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Drive unit enters unit limp mode (see DI_a126_limpMode)
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The Drive Inverter (DIx) Phase B current sensor is irrational.
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The DIx Phase B current sensor is irrational. An irrational current may indicate a high rate of change or current measurement out of sensing bounds. There may be a condition affecting current input and output.
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If the alert asserts at the beginning of a drive cycle, DIx may not enable. If the alert asserts during a drive cycle, DIx may be disabled. DIx may not function as expected.
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Drive Inverter Warning: Outlet over temperature.
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DI coolant outlet temperature (refer to outletTemp) exceeds upper temperature threshold
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No direct impact. Could damage drive inverter if temperature is continuously too high.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase B.
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The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase B. Phase B hardware may need investigation.
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This alert is intended for logging purposes. Phase B hardware may need investigation.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase A.
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The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase A. Phase A hardware may need investigation.
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This alert is intended for logging purposes. Phase A hardware may need investigation.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that requires it to trigger system limp mode.
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The DI ECU detects abnormal operation in the powertrain system. Alert log signal data provides information on the specific condition(s) detected.
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The performance (torque and power of the drive system) is severely limited.
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Drive Inverter Warning: Heatsink sensor bad.
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Abnormal temperature measurements from heatsink sensor
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Unable to monitor heatsink sensor temperature
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One or more of the messages the Drive Inverter Rear (DIR) Electronic Control Unit (ECU) receives periodically from the Decoupled Brake Booster (BB) ECU is not received, indicating the BB ECU may be unavailable (MIA).
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One or more of the expected messages from the BB ECU is not received.
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Drive system may not function as expected.
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Drive Inverter Warning: Heatsink under temperature.
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Heatsink temperature (refer to heatsinkTemp) drops below lower temperature threshold
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No direct impact. Could damage drive inverter if temperature is continuously too low.
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Drive Inverter Warning: Heatsink over temperature.
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Heatsink temperature (refer to heatsinkTemp) exceeds upper temperature threshold
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No direct impact. Could damage drive inverter if temperature is continuously too high.
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Drive Inverter Warning: Ambient sensor bad.
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Abnormal temperature measurements from ambient sensor
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Unable to monitor ambient sensor temperature
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Drive Inverter Warning: Ambient under temperature.
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Ambient temperature (refer to pcbTemp) drops below lower temperature threshold
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No direct impact. Could damage drive inverter if temperature is continuously too low.
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Drive Inverter Warning: Ambient over temperature.
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Ambient temperature (refer to pcbTemp) exceeds upper temperature threshold
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No direct impact. Could damage drive inverter if temperature is continuously too high.
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The Drive Inverter (DIx) and Pedal Monitor (PM) estimate different amounts of torque production, causing a Cross Check mismatch.
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The DIx and PM estimate different amounts of torque production, causing a Cross Check mismatch. There may be a condition affecting DIx's or PM's ability to measure torque.
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The vehicle may not accurately measure the level of torque being produced by the Drive Unit.
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Drive Inverter Warning: Inverter over temperature.
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Drive Inverter temperature (refer payload signals for temperatures) exceeds upper temperature threshold
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No direct impact. Could damage drive inverter if temperature is continuously too high.
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