Alerts
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| Signal Name | Description | Condition | Impact |
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Drive Inverter Warning: Active discharge is on but bus voltage remains high.
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Bus voltage is high while active discharge is ON
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Potentially exposed high voltage
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference above the upper rational bound.
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Any ADC channel reference is above the maximum rational value.
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The vehicle is blocked from shifting out of Park.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference below the lower rational bound.
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Any ADC channel reference is below the minimum rational value.
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The vehicle is blocked from shifting out of Park.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery power supply undervoltage event.
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LV supply voltage to DI (refer to lvSupply) is disconnected or drops below lower voltage threshold
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Drive unit enters unit limp mode (see DI_a126_limpMode)
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The Drive Inverter (DIx) power stage is not ready. There may be a condition affecting the DIx control board.
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The DIx power stage is not ready. One of the pre-drive gate driver checks has failed. There may be a condition affecting the DIx control board.
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DIx may not function as expected.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) resets for an unintended reason, such as a watchdog timeout.
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The DI ECU resets for an unintended reason. Alert log signal data should provide more information on the specific reason.
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The DI ECU is unavailable while it resets.
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Drive Inverter Warning: Motor stator anomaly detected.
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Stator anomaly observed during retry attempt
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Drive unit may fault
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The Drive Inverter (DIx) current sensor hardware comparator has detected an overcurrent event (or peak) on Phase C.
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The DIx current sensor hardware comparator has detected a peak on Phase C.
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DIx may be inoperable.
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The Drive Inverter (DIx) current sensor hardware comparator has detected an overcurrent event (or peak) on Phase B.
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The DIx current sensor hardware comparator has detected a peak on Phase B.
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DIx may be inoperable.
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Drive Inverter Warning: Phase A peak over current detected in hardware.
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Not Available
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Not Available
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The Drive Inverter (DIx) has detected a condition affecting functionality at the gate driver on Phase C.
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DIx has detected a condition affecting functionality at the gate driver on Phase C. View payload signal to confirm reason for alert.
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DIx may be inoperable.
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The Drive Inverter (DIx) has detected a condition affecting functionality at the gate driver on Phase B.
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DIx has detected a condition affecting functionality at the gate driver on Phase B. View payload signal to confirm reason for alert.
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DIx may be inoperable.
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The Drive Inverter (DIx) has detected a condition affecting functionality at the gate driver on Phase A.
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DIx has detected a condition affecting functionality at the gate driver on Phase A. View payload signal to confirm reason for alert.
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DIx may be inoperable.
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Drive Inverter Warning: Oil pump service.
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Adverse oil pressure detected or DC current sensor rationality degraded, see reason payload
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Drive Unit thermal estimation and limits are conservative, potential torque limiting with aggressive driving, recommend inspecting drive unit oil level and oil pump
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The Drive Interface (DI) detects the rotor is irrationally offset.
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Rotor offset mean estimator is above minimum rationality threshold at very low absolute torque outputs
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Diagnostic alert data only, may indicate reduction in torque or excess heat accuracy
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Alert for software trigger of mechanical safe state two-phase disconnect device.
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Software detects a shorted semiconductor switch. The alert log signals provide detailed trigger algorithm info.
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The motor is permanently disabled.
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Drive unit spindown learning calibration routine is in progress.
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Drive unit rotor offset, rotor flux, or resolver error learning routine is in progress.
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Drive unit torque is limited and pending spindown sequence.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the power conversion system (PCS) controller area network (CAN) node is missing (MIA).
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The DI ECU does not receive the expected CAN messages from the PCS.
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The DI ECU is unable to monitor the state of the PCS.
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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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