Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Drive Inverter Warning: Unit may not allow drive on the next drive cycle due to HW damage
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Inverter detects a shorted switch
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Inverter may not allow drive on next drive cycle
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Drive Inverter Warning: Low flow rate of fluid
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Insufficient cooling to the drive inverter is detected
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Drive unit enters unit limp mode (see DI_a126_limpMode)
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Drive Inverter Warning: Oil pump operation abnormal
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Loss of communication or power to oil pump, or persistent oil pump motor stall or fault occurred
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Initiates reduced drive unit performance and a speed limit on the vehicle, due to reduced gear lubrication and motor cooling
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Drive Inverter Warning: Unit limp mode triggered
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Abnormal condition detected within drive unit subsystem. Look at limpReason in alert for exact trigger.
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Drive system performance severely reduced (torque/power limited)
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Drive Inverter Warning: Loss of motor control
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Motors are not responding to DI commands
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Unable to produce torque/power from drive unit
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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) electronic control unit (ECU) detects that the Tesla air suspension (TAS) controller area network (CAN) node is missing (MIA).
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The DI ECU does not receive the expected CAN messages from TAS.
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TAS may be unavailable.
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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 interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that prevents the drive unit(s) from generating excess heat.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that prevents the drive unit(s) from generating excess heat. Alert log signal data provides information on the specific condition(s) detected.
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The drive unit(s) cannot produce excess heat when requested.
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The drive interface (DI) electronic control unit (ECU) detects that the electronic power assisted steering, gen 3 (EPAS3) controller area network (CAN) node is missing (MIA).
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The DI ECU is not receiving the expected CAN communication from the EPAS3, and considers it irrational or MIA.
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The DI ECU is unable to monitor the state of the EPAS3.
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The High Voltage (HV) bus has detected a voltage anomaly in the HV battery pack. The Drive Inverter (DIx) may not operate as expected.
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The HV bus has measured a voltage anomaly in the HV battery pack. DIx may not operate as expected.
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DIx may not operate as expected. Drive torque may be restricted.
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The drive interface (DI) electronic control unit (ECU) detects that the iBooster (IBST, or brake assist) controller area network (CAN) node is missing (MIA).
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The DI ECU is not receiving the expected CAN communication from the IBST, and considers it irrational or MIA.
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The DI ECU is unable to monitor the state of the IBST.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the restraints control module (RCM) controller area network (CAN) node is missing (MIA).
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The DI ECU is not receiving the expected CAN communication from the RCM, and considers it irrational or MIA.
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The DI ECU is unable to monitor the state of the RCM.
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The drive inverter (DIx) electronic control unit (ECU) detects that the Supermanifold Vehicle Controller (VCSUPER) controller area network (CAN) node is missing (MIA).
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The DI ECU is not receiving the expected CAN communication from the VCSUPER, and considers it irrational or MIA.
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The DI ECU is unable to monitor the state of the VCSUPER.
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The drive interface (DI) electronic control unit (ECU) detects that the front vehicle controller (VCFRONT) controller area network (CAN) node is missing (MIA).
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The DI ECU is not receiving the expected CAN communication from the VCFRONT, and considers it irrational or MIA.
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The DI ECU is unable to monitor the state of the VCFRONT.
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The Drive Unit resolver (motor speed sensor) is not operating as expected. The resolver may have a condition affecting functionality.
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The Drive Unit resolver is not operating as expected. The resolver may have a condition affecting functionality.
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The resolver is not operating as expected. The DIx invertor control board may be unable to correctly detect the angle and speed of the rotor.
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Drive Inverter Warning: Oil pump failure
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Loss of communication or power to oil pump, or persistent oil pump motor stall or fault occurred
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Initiates reduced drive unit performance and a speed limit on the vehicle, due to reduced gear lubrication and motor cooling
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Drive Inverter Warning: Oil pump failure
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Loss of communication or power to oil pump, persistent oil pump motor stall occurred, or persistent condition affecting oil pump functionality detected
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Initiates reduced drive unit performance and a speed limit on the vehicle, due to reduced gear lubrication and motor cooling
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Drive Inverter Warning: HVLINK CAN node MIA
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Any received HVLINK frame is MIA
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Active discharge may turn ON
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The Drive Inverter (DIx) has detected unexpected oil pressure from the oil pump.
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DIx has detected unexpected oil pressure from the oil pump. The oil pump may have a condition affecting functionality.
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Drive Unit thermal estimation and limits may be impacted and not function as expected. Torque production could be limited.
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