Alerts
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| Signal Name | Description | Condition | Impact |
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DI_d003_lvSupplyUV
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-
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DI_d002_lvSupplyOV
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-
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The main Drive Interface (DI) is limiting torque to other drive units while one drive unit is engaged in spindown learning calibration routine, which selects either drive unit rotor learning (rotor flux and/or rotor offset) or resolver learning (error table) routines.
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A drive unit reports it has entered spindown learning calibration state to the main Drive Interface (DI) while the vehicle is in Service Mode.
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Only the drive unit engaged in spindown learning calibration responds to torque requests, limiting torque available from other drive units and power while driving.
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The drive interface (DI) electronic control unit (ECU) detects that HOLD stopping mode is unavailable.
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One of HOLD stopping mode's unavailable reasons is active.
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The DI may not be able to bring the vehicle to a stop and hold on grades when stopping mode HOLD is selected on UI.
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The drive interface (DI) electronic control unit (ECU) detects that the external brake request (EBR) is unavailable while HOLD stopping mode is active.
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Vehicle hold is unavailable when HOLD stopping mode is activated, or the external brake request feature becomes unavailable from the electronic stability program module.
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The DI holds the vehicle using motor torque, which may lead to reduced hold performance while near standstill.
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The Drive Inverter (DI) is not receiving signals from the Redundant (Brake) Control Unit (RCU), indicating that the device is Missing In Action (MIA).
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The Drive Inverter (DI) is not receiving signals from the Redundant (Brake) Control Unit (RCU) properly. Controller Area Network (CAN) issues should be diagnosed and can be caused by RCU not transmitting messages or general bus error frames or shorts.
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The Redundant (Brake) Control Unit (RCU) is unavailable to perform backup braking requests and may impact traction and vehicle dynamics control performance. The vehicle should be driven with extreme caution if the traction or vehicle dynamics control systems are faulted.
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The pedal monitor (PM) electronic control unit (ECU) requests that the drive interface (DI) shifts into Neutral.
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The DI receives a shift request from the PM when the vehicle's speed is above 1 mph (1.6 km/h).
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The DI automatically shifts to Neutral without user request.
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The Electronic Stability Program (ESP) electronic control unit (ECU) is actuating the brakes to prevent a secondary collision.
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The ESP reports secondary collision mitigation is active.
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The ESP ECU may engage the brakes and the DI will remove accelerating torque.
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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 vehicle has entered Track Mode.
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The vehicle has entered Track Mode.
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In Track mode, the vehicle's stability control, traction control, regenerative braking, and cooling system behavior will be modified.
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Locking differential is engaged while disabled and requesting disengagement.
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Locking differential position sensor reports engaged or partially engaged when locking differential is disabled
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A locked differential may reduce vehicle response to steering and increase braking distance.
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The drive interface (DI) electronic control unit (ECU) detects that the accuracy of the velocity estimator is degraded. Velocity estimate is required for traction control and stability control.
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The DI ECU detects that some or all velocity estimate inputs are unavailable. Check for corresponding ECU missing (MIA) alerts from DI and other ECUs to help identify the cause of the controller area network (CAN) issue.
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Traction control and stability control are unavailable, requiring greater manual input from the driver.
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The drive inverter (DI) electronic control unit (ECU) is unable to command a unit torque request to the rear right drive inverter (DIRER) ECU because the rear right drive unit is disabled. This alert is set in addition to one or more DIRER alert(s) indicating the reason why the rear right drive unit is disabled.
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At least one additional alert is present indicating the rear right drive unit is disabled. Alert log signal data should provide more information on the specific condition(s) detected.
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The rear right drive unit may be disabled, which may prevent torque or power from being produced on the rear wheels.
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The drive inverter (DI) electronic control unit (ECU) is unable to command a unit torque request to the rear left drive inverter (DIREL) ECU because the rear left drive unit is disabled. This alert is set in addition to one or more DIREL alert(s) indicating the reason why the rear left drive unit is disabled.
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At least one additional alert is present indicating the rear left drive unit is disabled. Alert log signal data should provide more information on the specific condition(s) detected.
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The rear left drive unit may be disabled, which may prevent torque or power from being produced on the rear wheels.
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The drive interface (DI) electronic control unit (ECU) detects that the secondary shifter module (CCCM or PRND) button is falsely pressed.
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The DI ECU detects that the secondary shifter button is pressed for longer than 1 second.
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Secondary shifter (CCCM or PRND) button presses are not able to control vehicle's gear state.
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Diagnostic warning of the front left active wheel speed sensor.
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One of the diagnostic reasons is active.
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No immediate impact. The sensor may be marginally sensing speed and may require adjustments or replacement.
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Fault of the front left active wheel speed sensor.
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Sensor not operating correctly
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Traction control and stability control may fault due to this error. The vehicle should be driven with extreme caution if these sytems are faulted.
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Drive Inverter Warning: Rear 2 drive unit disabled.
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Fault detected in the front drive unit
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Unable to produce any torque or power on the front wheels
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The drive inverter (DI) electronic control unit (ECU) is unable to command a unit torque request to the front drive inverter (DIF) ECU because the front drive unit is disabled. This alert is set in addition to one or more DIF alert(s) indicating the reason why the front drive unit is disabled.
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At least one additional alert is present indicating the front drive unit is disabled. Alert log signal data should provide more information on the specific condition(s) detected.
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The front drive unit may be disabled, which may prevent torque or power from being produced on the front wheels.
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The drive interface (DI) electronic control unit (ECU) detects that none of the vehicle's drive units are capable of producing torque.
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The DI ECU detects that no drive units are able to produce torque.
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The drive system cannot produce any torque.
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